[PRW 2.0] Merging `remote-write-2.0` feature branch to main (PRW 2.0 support + metadata in WAL) (#14395)

* Remote Write 1.1: e2e benchmarks (#13102)

* Remote Write e2e benchmarks

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* Prometheus ports automatically assigned

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* make dashboard editable + more modular to different job label values

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* Dashboard improvements

* memory stats
* diffs look at counter increases

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* run script: absolute path for config templates

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* grafana dashboard improvements

* show actual values of metrics
* add memory stats and diff

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* dashboard changes

Signed-off-by: Callum Styan <callumstyan@gmail.com>

---------

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>
Signed-off-by: Callum Styan <callumstyan@gmail.com>
Co-authored-by: Callum Styan <callumstyan@gmail.com>

* replace snappy encoding library

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* add new proto types

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* add decode function for new write request proto

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* add lookup table struct that is used to build the symbol table in new
write request format

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* Implement code paths for new proto format

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* update example server to include handler for new format

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* Add new test client

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* tests and new -> original proto mapping util

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* add new proto support on receiver end

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* Fix test

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* no-brainer copypaste but more performance write support

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* remove some comented code

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* fix mocks and fixture

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* add basic reduce remote write handler benchmark

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* refactor out common code between write methods

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* fix: queue manager to include float histograms in new requests

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* add sender-side tests and fix failing ones

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* refactor queue manager code to remove some duplication

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* fix build

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* Improve sender benchmarks and some allocations

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* Use github.com/golang/snappy

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* cleanup: remove hardcoded fake url for testing

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* Add 1.1 version handling code

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* Remove config, update proto

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* gofmt

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* fix NewWriteClient and change new flags wording

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* fields rewording in handler

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* remote write handler to checks version header

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* fix typo in log

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* lint

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* Add minmized remote write proto format

Co-authored-by: Marco Pracucci <marco@pracucci.com>
Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* add functions for translating between new proto formats symbol table and
actual prometheus labels

Co-authored-by: Marco Pracucci <marco@pracucci.com>
Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* add functionality for new minimized remote write request format

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* fix minor things

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* Make LabelSymbols a fixed32

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* remove unused proto type

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* update tests

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* fix build for stringlabels tag

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* Use two uint32 to encode (offset,leng)

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* manually optimize varint marshaling

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* Use unsafe []byte->string cast to reuse buffer

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* fix writeRequestMinimizedFixture

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* remove all code from previous interning approach

the 'minimized' version is now the only v1.1 version

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* minimally-tested exemplar support for rw 1.1

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* refactor new version flag to make it easier to pick a specific format
instead of having multiple flags, plus add new formats for testing

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* use exp slices for backwards compat. to go 1.20 plus add copyright
header to test file

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* fix label ranging

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* Add bytes slice (instead of slice of 32bit vars) format for testing

Co-authored-by: Nicolás Pazos <npazosmendez@gmail.com>
Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* test additional len and lenbytes formats

Co-authored-by: Nicolás Pazos <npazosmendez@gmail.com>
Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* remove mistaken package lock changes

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* remove formats we've decided not to use

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* remove more format types we probably won't use

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* More cleanup

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* use require instead of assert in custom marshal test

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* cleanup; remove some unused functions

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* more cleanup, mostly linting fixes

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* remove package-lock.json change again

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* more cleanup, address review comments

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* fix test panic

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* fix minor lint issue + use labels Range function since it looks like
the tests fail to do `range labels.Labels` on CI

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* new interning format based on []string indeces

Co-authored-by: bwplotka <bwplotka@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* remove all new rw formats but the []string one

also adapt tests to the new format

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* cleanup rwSymbolTable

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* add some TODOs for later

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* don't reserve field 3 for new proto and add TODO

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* fix custom marshaling

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* lint

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* additional merge fixes

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* lint fixes

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* fix server example

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* revert package-lock.json changes

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* update example prometheus version

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* define separate proto types for remote write 2.0

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* lint

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* rename new proto types and move to separate pkg

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* update prometheus version for example

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* make proto

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* make Metadata not nullable

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* remove old MinSample proto message

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* change enum names to fit buf build recommend enum naming and lint rules

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* remote: Added test for classic histogram grouping when sending rw; Fixed queue manager test delay. (#13421)

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Remote write v2: metadata support in every write request (#13394)

* Approach bundling metadata along with samples and exemplars

Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com>

* Add first test; rebase with main

Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com>

* Alternative approach: bundle metadata in TimeSeries protobuf

Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com>

* update go mod to match main branch

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* fix after rebase

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* we're not going to modify the 1.X format anymore

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* Modify AppendMetadata based on the fact that we be putting metadata into
timeseries

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* Rename enums for remote write versions to something that makes more
sense + remove the added `sendMetadata` flag.

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* rename flag that enables writing of metadata records to the WAL

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* additional clean up

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* lint

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* fix usage of require.Len

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* some clean up from review comments

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* more review fixes

Signed-off-by: Callum Styan <callumstyan@gmail.com>

---------

Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com>
Signed-off-by: Callum Styan <callumstyan@gmail.com>
Co-authored-by: Paschalis Tsilias <paschalist0@gmail.com>

* remote write 2.0: sync with `main` branch (#13510)

* consoles: exclude iowait and steal from CPU Utilisation

'iowait' and 'steal' indicate specific idle/wait states, which shouldn't
be counted into CPU Utilisation. Also see
https://github.com/prometheus-operator/kube-prometheus/pull/796 and
https://github.com/kubernetes-monitoring/kubernetes-mixin/pull/667.

Per the iostat man page:

%idle
    Show the percentage of time that the CPU or CPUs were idle and the
    system did not have an outstanding disk I/O request.

%iowait
     Show the percentage of time that the CPU or CPUs were idle during
     which the system had an outstanding disk I/O request.

%steal
     Show the percentage of time spent in involuntary wait by the
     virtual CPU or CPUs while the hypervisor was servicing another
     virtual processor.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>

* tsdb: shrink txRing with smaller integers

4 billion active transactions ought to be enough for anyone.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* tsdb: create isolation transaction slice on demand

When Prometheus restarts it creates every series read in from the WAL,
but many of those series will be finished, and never receive any more
samples. By defering allocation of the txRing slice to when it is first
needed, we save 32 bytes per stale series.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* add cluster variable to Overview dashboard

Signed-off-by: Erik Sommer <ersotech@posteo.de>

* promql: simplify Native Histogram arithmetics

Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com>

* Cut 2.49.0-rc.0 (#13270)

* Cut 2.49.0-rc.0

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Removed the duplicate.

Signed-off-by: bwplotka <bwplotka@gmail.com>

---------

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Add unit protobuf parser

Signed-off-by: Arianna Vespri <arianna.vespri@yahoo.it>

* Go on adding protobuf parsing for unit

Signed-off-by: Arianna Vespri <arianna.vespri@yahoo.it>

* ui: create a reproduction for https://github.com/prometheus/prometheus/issues/13292

Signed-off-by: machine424 <ayoubmrini424@gmail.com>

* Get conditional right

Signed-off-by: Arianna Vespri <arianna.vespri@yahoo.it>

* Get VM Scale Set NIC (#13283)

Calling `*armnetwork.InterfacesClient.Get()` doesn't work for Scale Set
VM NIC, because these use a different Resource ID format.

Use `*armnetwork.InterfacesClient.GetVirtualMachineScaleSetNetworkInterface()`
instead.  This needs both the scale set name and the instance ID, so
add an `InstanceID` field to the `virtualMachine` struct.  `InstanceID`
is empty for a VM that isn't a ScaleSetVM.

Signed-off-by: Daniel Nicholls <daniel.nicholls@resdiary.com>

* Cut v2.49.0-rc.1

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Delete debugging lines, amend error message for unit

Signed-off-by: Arianna Vespri <arianna.vespri@yahoo.it>

* Correct order in error message

Signed-off-by: Arianna Vespri <arianna.vespri@yahoo.it>

* Consider storage.ErrTooOldSample as non-retryable

Signed-off-by: Daniel Kerbel <nmdanny@gmail.com>

* scrape_test.go: Increase scrape interval in TestScrapeLoopCache to reduce potential flakiness

Signed-off-by: machine424 <ayoubmrini424@gmail.com>

* Avoid creating string for suffix, consider counters without _total suffix

Signed-off-by: Arianna Vespri <arianna.vespri@yahoo.it>

* build(deps): bump github.com/prometheus/client_golang

Bumps [github.com/prometheus/client_golang](https://github.com/prometheus/client_golang) from 1.17.0 to 1.18.0.
- [Release notes](https://github.com/prometheus/client_golang/releases)
- [Changelog](https://github.com/prometheus/client_golang/blob/main/CHANGELOG.md)
- [Commits](https://github.com/prometheus/client_golang/compare/v1.17.0...v1.18.0)

---
updated-dependencies:
- dependency-name: github.com/prometheus/client_golang
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* build(deps): bump actions/setup-node from 3.8.1 to 4.0.1

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 3.8.1 to 4.0.1.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](5e21ff4d9b...b39b52d121)

---
updated-dependencies:
- dependency-name: actions/setup-node
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* scripts: sort file list in embed directive

Otherwise the resulting string depends on find, which afaict depends on
the underlying filesystem. A stable file list make it easier to detect
UI changes in downstreams that need to track UI assets.

Signed-off-by: Jan Fajerski <jfajersk@redhat.com>

* Fix DataTableProps['data'] for resultType string

Signed-off-by: Kevin Mingtarja <kevin.mingtarja@gmail.com>

* Fix handling of scalar and string in isHeatmapData

Signed-off-by: Kevin Mingtarja <kevin.mingtarja@gmail.com>

* build(deps): bump github.com/influxdata/influxdb

Bumps [github.com/influxdata/influxdb](https://github.com/influxdata/influxdb) from 1.11.2 to 1.11.4.
- [Release notes](https://github.com/influxdata/influxdb/releases)
- [Commits](https://github.com/influxdata/influxdb/compare/v1.11.2...v1.11.4)

---
updated-dependencies:
- dependency-name: github.com/influxdata/influxdb
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

* build(deps): bump github.com/prometheus/prometheus

Bumps [github.com/prometheus/prometheus](https://github.com/prometheus/prometheus) from 0.48.0 to 0.48.1.
- [Release notes](https://github.com/prometheus/prometheus/releases)
- [Changelog](https://github.com/prometheus/prometheus/blob/main/CHANGELOG.md)
- [Commits](https://github.com/prometheus/prometheus/compare/v0.48.0...v0.48.1)

---
updated-dependencies:
- dependency-name: github.com/prometheus/prometheus
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

* Bump client_golang to v1.18.0 (#13373)

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>

* Drop old inmemory samples (#13002)

* Drop old inmemory samples

Co-authored-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* Avoid copying timeseries when the feature is disabled

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* Run gofmt

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* Clarify docs

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* Add more logging info

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* Remove loggers

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* optimize function and add tests

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* Simplify filter

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* rename var

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* Update help info from metrics

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* use metrics to keep track of drop elements during buildWriteRequest

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* rename var in tests

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* pass time.Now as parameter

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* Change buildwriterequest during retries

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* Revert "Remove loggers"

This reverts commit 54f91dfcae20488944162335ab4ad8be459df1ab.

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* use log level debug for loggers

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* Fix linter

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>

* Remove noisy debug-level logs; add 'reason' label to drop metrics

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>

* Remove accidentally committed files

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>

* Propagate logger to buildWriteRequest to log dropped data

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>

* Fix docs comment

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>

* Make drop reason more specific

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>

* Remove unnecessary pass of logger

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>

* Use snake_case for reason label

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>

* Fix dropped samples metric

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>

---------

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
Signed-off-by: Paschalis Tsilias <tpaschalis@users.noreply.github.com>
Co-authored-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
Co-authored-by: Paschalis Tsilias <tpaschalis@users.noreply.github.com>

* fix(discovery): allow requireUpdate util to timeout in discovery/file/file_test.go.

The loop ran indefinitely if the condition isn't met.

Before, each iteration created a new timer channel which was always outpaced by
the other timer channel with smaller duration.

minor detail: There was a memory leak: resources of the ~10 previous timers were
constantly kept. With the fix, we may keep the resources of one timer around for defaultWait
but this isn't worth the changes to make it right.

Signed-off-by: machine424 <ayoubmrini424@gmail.com>

* Merge pull request #13371 from kevinmingtarja/fix-isHeatmapData

ui: fix handling of scalar and string in isHeatmapData

* tsdb/{index,compact}: allow using custom postings encoding format (#13242)

* tsdb/{index,compact}: allow using custom postings encoding format

We would like to experiment with a different postings encoding format in
Thanos so in this change I am proposing adding another argument to
`NewWriter` which would allow users to change the format if needed.
Also, wire the leveled compactor so that it would be possible to change
the format there too.

Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@vinted.com>

* tsdb/compact: use a struct for leveled compactor options

As discussed on Slack, let's use a struct for the options in leveled
compactor.

Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@vinted.com>

* tsdb: make changes after Bryan's review

- Make changes less intrusive
- Turn the postings encoder type into a function
- Add NewWriterWithEncoder()

Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@vinted.com>

---------

Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@vinted.com>

* Cut 2.49.0-rc.2

Signed-off-by: bwplotka <bwplotka@gmail.com>

* build(deps): bump actions/setup-go from 3.5.0 to 5.0.0 in /scripts (#13362)

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 3.5.0 to 5.0.0.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](6edd4406fa...0c52d547c9)

---
updated-dependencies:
- dependency-name: actions/setup-go
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* build(deps): bump github/codeql-action from 2.22.8 to 3.22.12 (#13358)

Bumps [github/codeql-action](https://github.com/github/codeql-action) from 2.22.8 to 3.22.12.
- [Release notes](https://github.com/github/codeql-action/releases)
- [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md)
- [Commits](407ffafae6...012739e508)

---
updated-dependencies:
- dependency-name: github/codeql-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* put @nexucis has a release shepherd (#13383)

Signed-off-by: Augustin Husson <augustin.husson@amadeus.com>

* Add analyze histograms command to promtool (#12331)

Add `query analyze` command to promtool

This command analyzes the buckets of classic and native histograms,
based on data queried from the Prometheus query API, i.e. it
doesn't require direct access to the TSDB files.

Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>

---------

Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>

* included instance in all necessary descriptions

Signed-off-by: Erik Sommer <ersotech@posteo.de>

* tsdb/compact: fix passing merge func

Fixing a very small logical problem I've introduced :(.

Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@vinted.com>

* tsdb: add enable overlapping compaction

This functionality is needed in downstream projects because they have a
separate component that does compaction.

Upstreaming
7c8e9a2a76/tsdb/compact.go (L323-L325).

Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@vinted.com>

* Cut 2.49.0

Signed-off-by: bwplotka <bwplotka@gmail.com>

* promtool: allow setting multiple matchers to "promtool tsdb dump" command. (#13296)

Conditions are ANDed inside the same matcher but matchers are ORed

Including unit tests for "promtool tsdb dump".

Refactor some matchers scraping utils.

Signed-off-by: machine424 <ayoubmrini424@gmail.com>

* Fixed changelog

Signed-off-by: bwplotka <bwplotka@gmail.com>

* tsdb/main: wire "EnableOverlappingCompaction" to tsdb.Options (#13398)

This added the https://github.com/prometheus/prometheus/pull/13393
"EnableOverlappingCompaction" parameter to the compactor code but not to
the tsdb.Options. I forgot about that. Add it to `tsdb.Options` too and
set it to `true` in Prometheus.

Copy/paste the description from
https://github.com/prometheus/prometheus/pull/13393#issuecomment-1891787986

Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@vinted.com>

* Issue #13268: fix quality value in accept header

Signed-off-by: Kumar Kalpadiptya Roy <kalpadiptya.roy@outlook.com>

* Cut 2.49.1 with scrape q= bugfix.

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Cut 2.49.1 web package.

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Restore more efficient version of NewPossibleNonCounterInfo annotation (#13022)

Restore more efficient version of NewPossibleNonCounterInfo annotation

Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>

---------

Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>

* Fix regressions introduced by #13242

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* fix slice copy in 1.20 (#13389)

The slices package is added to the standard library in Go 1.21;
we need to import from the exp area to maintain compatibility with Go 1.20.

Signed-off-by: tyltr <tylitianrui@126.com>

* Docs: Query Basics: link to rate (#10538)

Co-authored-by: Julien Pivotto <roidelapluie@o11y.eu>

* chore(kubernetes): check preconditions earlier and avoid unnecessary checks or iterations

Signed-off-by: machine424 <ayoubmrini424@gmail.com>

* Examples: link to `rate` for new users (#10535)

* Examples: link to `rate` for new users

Signed-off-by: Ted Robertson 10043369+tredondo@users.noreply.github.com
Co-authored-by: Bryan Boreham <bjboreham@gmail.com>

* promql: use natural sort in sort_by_label and sort_by_label_desc (#13411)

These functions are intended for humans, as robots can already sort the results
however they please. Humans like things sorted "naturally":

* https://blog.codinghorror.com/sorting-for-humans-natural-sort-order/

A similar thing has been done to Grafana, which is also used by humans:

* https://github.com/grafana/grafana/pull/78024
* https://github.com/grafana/grafana/pull/78494

Signed-off-by: Ivan Babrou <github@ivan.computer>

* TestLabelValuesWithMatchers: Add test case

Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>

* remove  obsolete build tag

Signed-off-by: tyltr <tylitianrui@126.com>

* Upgrade some golang dependencies for resty 2.11

Signed-off-by: Israel Blancas <iblancasa@gmail.com>

* Native Histograms: support `native_histogram_min_bucket_factor` in scrape_config (#13222)

Native Histograms: support native_histogram_min_bucket_factor in scrape_config

---------

Signed-off-by: Ziqi Zhao <zhaoziqi9146@gmail.com>
Signed-off-by: Björn Rabenstein <github@rabenste.in>
Co-authored-by: George Krajcsovits <krajorama@users.noreply.github.com>
Co-authored-by: Björn Rabenstein <github@rabenste.in>

* Add warnings for histogramRate applied with isCounter not matching counter/gauge histogram (#13392)

Add warnings for histogramRate applied with isCounter not matching counter/gauge histogram

---------

Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>

* Minor fixes to otlp vendor update script

Signed-off-by: Goutham <gouthamve@gmail.com>

* build(deps): bump github.com/hetznercloud/hcloud-go/v2

Bumps [github.com/hetznercloud/hcloud-go/v2](https://github.com/hetznercloud/hcloud-go) from 2.4.0 to 2.6.0.
- [Release notes](https://github.com/hetznercloud/hcloud-go/releases)
- [Changelog](https://github.com/hetznercloud/hcloud-go/blob/main/CHANGELOG.md)
- [Commits](https://github.com/hetznercloud/hcloud-go/compare/v2.4.0...v2.6.0)

---
updated-dependencies:
- dependency-name: github.com/hetznercloud/hcloud-go/v2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* Enhanced visibility for `promtool test rules` with JSON colored formatting (#13342)

* Added diff flag for unit test to improvise readability & debugging

Signed-off-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>

* Removed blank spaces

Signed-off-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>

* Fixed linting error

Signed-off-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>

* Added cli flags to documentation

Signed-off-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>

* Revert unrrelated linting fixes

Signed-off-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>

* Fixed review suggestions

Signed-off-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>

* Cleanup

Signed-off-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>

* Updated flag description

Signed-off-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>

* Updated flag description

Signed-off-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>

---------

Signed-off-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>

* storage: skip merging when no remote storage configured

Prometheus is hard-coded to use a fanout storage between TSDB and
a remote storage which by default is empty.
This change detects the empty storage and skips merging between
result sets, which would make `Select()` sort results.

Bottom line: we skip a sort unless there really is some remote storage
configured.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* Remove csmarchbanks from remote write owners (#13432)

I have not had the time to keep up with remote write and have no plans
to work on it in the near future so I am withdrawing my maintainership
of that part of the codebase. I continue to focus on client_python.

Signed-off-by: Chris Marchbanks <csmarchbanks@gmail.com>

* add more context cancellation check at evaluation time

Signed-off-by: Ben Ye <benye@amazon.com>

* Optimize label values with matchers by taking shortcuts (#13426)

Don't calculate postings beforehand: we may not need them. If all
matchers are for the requested label, we can just filter its values.

Also, if there are no values at all, no need to run any kind of
logic.

Also add more labelValuesWithMatchers benchmarks

Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>

* Add automatic memory limit handling

Enable automatic detection of memory limits and configure GOMEMLIMIT to
match.
* Also includes a flag to allow controlling the reserved ratio.

Signed-off-by: SuperQ <superq@gmail.com>

* Update OSSF badge link (#13433)

Provide a more user friendly interface

Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>

* SD Managers taking over responsibility for registration of debug metrics (#13375)

SD Managers take over responsibility for SD metrics registration

---------

Signed-off-by: Paulin Todev <paulin.todev@gmail.com>
Signed-off-by: Björn Rabenstein <github@rabenste.in>
Co-authored-by: Björn Rabenstein <github@rabenste.in>

* Optimize histogram iterators (#13340)

Optimize histogram iterators

Histogram iterators allocate new objects in the AtHistogram and
AtFloatHistogram methods, which makes calculating rates over long
ranges expensive.

In #13215 we allowed an existing object to be reused
when converting an integer histogram to a float histogram. This commit follows
the same idea and allows injecting an existing object in the AtHistogram and
AtFloatHistogram methods. When the injected value is nil, iterators allocate
new histograms, otherwise they populate and return the injected object.

The commit also adds a CopyTo method to Histogram and FloatHistogram which
is used in the BufferedIterator to overwrite items in the ring instead of making
new copies.

Note that a specialized HPoint pool is needed for all of this to work 
(`matrixSelectorHPool`).

---------

Signed-off-by: Filip Petkovski <filip.petkovsky@gmail.com>
Co-authored-by: George Krajcsovits <krajorama@users.noreply.github.com>

* doc: Mark `mad_over_time` as experimental (#13440)

We forgot to do that in
https://github.com/prometheus/prometheus/pull/13059

Signed-off-by: beorn7 <beorn@grafana.com>

* Change metric label for Puppetdb from 'http' to 'puppetdb'

Signed-off-by: Paulin Todev <paulin.todev@gmail.com>

* mirror metrics.proto change & generate code

Signed-off-by: Ziqi Zhao <zhaoziqi9146@gmail.com>

* TestHeadLabelValuesWithMatchers: Add test case (#13414)

Add test case to TestHeadLabelValuesWithMatchers, while fixing a couple
of typos in other test cases. Also enclosing some implicit sub-tests in a
`t.Run` call to make them explicitly sub-tests.

Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>

* update all go dependencies (#13438)

Signed-off-by: Augustin Husson <husson.augustin@gmail.com>

* build(deps): bump the k8s-io group with 2 updates (#13454)

Bumps the k8s-io group with 2 updates: [k8s.io/api](https://github.com/kubernetes/api) and [k8s.io/client-go](https://github.com/kubernetes/client-go).


Updates `k8s.io/api` from 0.28.4 to 0.29.1
- [Commits](https://github.com/kubernetes/api/compare/v0.28.4...v0.29.1)

Updates `k8s.io/client-go` from 0.28.4 to 0.29.1
- [Changelog](https://github.com/kubernetes/client-go/blob/master/CHANGELOG.md)
- [Commits](https://github.com/kubernetes/client-go/compare/v0.28.4...v0.29.1)

---
updated-dependencies:
- dependency-name: k8s.io/api
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: k8s-io
- dependency-name: k8s.io/client-go
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: k8s-io
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* build(deps): bump the go-opentelemetry-io group with 1 update (#13453)

Bumps the go-opentelemetry-io group with 1 update: [go.opentelemetry.io/collector/semconv](https://github.com/open-telemetry/opentelemetry-collector).


Updates `go.opentelemetry.io/collector/semconv` from 0.92.0 to 0.93.0
- [Release notes](https://github.com/open-telemetry/opentelemetry-collector/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-collector/blob/main/CHANGELOG-API.md)
- [Commits](https://github.com/open-telemetry/opentelemetry-collector/compare/v0.92.0...v0.93.0)

---
updated-dependencies:
- dependency-name: go.opentelemetry.io/collector/semconv
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: go-opentelemetry-io
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* build(deps): bump actions/upload-artifact from 3.1.3 to 4.0.0 (#13355)

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 3.1.3 to 4.0.0.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](a8a3f3ad30...c7d193f32e)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* build(deps): bump bufbuild/buf-push-action (#13357)

Bumps [bufbuild/buf-push-action](https://github.com/bufbuild/buf-push-action) from 342fc4cdcf29115a01cf12a2c6dd6aac68dc51e1 to a654ff18effe4641ebea4a4ce242c49800728459.
- [Release notes](https://github.com/bufbuild/buf-push-action/releases)
- [Commits](342fc4cdcf...a654ff18ef)

---
updated-dependencies:
- dependency-name: bufbuild/buf-push-action
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Labels: Add DropMetricName function, used in PromQL (#13446)

This function is called very frequently when executing PromQL functions,
and we can do it much more efficiently inside Labels.

In the common case that `__name__` comes first in the labels, we simply
re-point to start at the next label, which is nearly free.

`DropMetricName` is now so cheap I removed the cache - benchmarks show
everything still goes faster.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* tsdb: simplify internal series delete function (#13261)

Lifting an optimisation from Agent code, `seriesHashmap.del` can use
the unique series reference, doesn't need to check Labels.
Also streamline the logic for deleting from `unique` and `conflicts` maps,
and add some comments to help the next person.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* otlptranslator/update-copy.sh: Fix sed command lines

Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>

* Rollback k8s.io requirements (#13462)

Rollback k8s.io Go modules to v0.28.6 to avoid forcing upgrade of Go to
1.21. This allows us to keep compatibility with the currently supported
upstream Go releases.

Signed-off-by: SuperQ <superq@gmail.com>

* Make update-copy.sh work for both OSX and GNU sed

Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>

* Name @beorn7 and @krajorama as maintainers for native histograms

I have been the de-facto maintainer for native histograms from the
beginning. So let's put this into MAINTAINERS.md.

In addition, I hereby proposose George Krajcsovits AKA Krajo as a
co-maintainer. He has contributed a lot of native histogram code, but
more importantly, he has contributed substantially to reviewing other
contributors' native histogram code, up to a point where I was merely
rubberstamping the PRs he had already reviewed. I'm confident that he
is ready to to be granted commit rights as outlined in the
"Maintainers" section of the governance:
https://prometheus.io/governance/#maintainers

According to the same section of the governance, I will announce the
proposed change on the developers mailing list and will give some time
for lazy consensus before merging this PR.

Signed-off-by: beorn7 <beorn@grafana.com>

* ui/fix: correct url handling for stacked graphs (#13460)

Signed-off-by: Yury Moladau <yurymolodov@gmail.com>

* tsdb: use cheaper Mutex on series

Mutex is 8 bytes; RWMutex is 24 bytes and much more complicated. Since
`RLock` is only used in two places, `UpdateMetadata` and `Delete`,
neither of which are hotspots, we should use the cheaper one.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* Fix last_over_time for native histograms

The last_over_time retains a histogram sample without making a copy.
This sample is now coming from the buffered iterator used for windowing functions,
and can be reused for reading subsequent samples as the iterator progresses.

I would propose copying the sample in the last_over_time function, similar to
how it is done for rate, sum_over_time and others.

Signed-off-by: Filip Petkovski <filip.petkovsky@gmail.com>

* Implementation

NOTE:
Rebased from main after refactor in #13014

Signed-off-by: Danny Kopping <danny.kopping@grafana.com>

* Add feature flag

Signed-off-by: Danny Kopping <danny.kopping@grafana.com>

* Refactor concurrency control

Signed-off-by: Danny Kopping <danny.kopping@grafana.com>

* Optimising dependencies/dependents funcs to not produce new slices each request

Signed-off-by: Danny Kopping <danny.kopping@grafana.com>

* Refactoring

Signed-off-by: Danny Kopping <danny.kopping@grafana.com>

* Rename flag

Signed-off-by: Danny Kopping <danny.kopping@grafana.com>

* Refactoring for performance, and to allow controller to be overridden

Signed-off-by: Danny Kopping <danny.kopping@grafana.com>

* Block until all rules, both sync & async, have completed evaluating
Updated & added tests
Review feedback nits
Return empty map if not indeterminate
Use highWatermark to track inflight requests counter
Appease the linter
Clarify feature flag

Signed-off-by: Danny Kopping <danny.kopping@grafana.com>

* Fix typo in CLI flag description

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* Fixed auto-generated doc

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* Improve doc

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* Simplify the design to update concurrency controller once the rule evaluation has done

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* Add more test cases to TestDependenciesEdgeCases

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* Added more test cases to TestDependenciesEdgeCases

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* Improved RuleConcurrencyController interface doc

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* Introduced sequentialRuleEvalController

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* Remove superfluous nil check in Group.metrics

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* api: Serialize discovered and target labels into JSON directly (#13469)

Converted maps into labels.Labels to avoid a lot of copying of data which leads to very high memory consumption while opening the /service-discovery endpoint in the Prometheus UI

Signed-off-by: Leegin <114397475+Leegin-darknight@users.noreply.github.com>

* api: Serialize discovered labels into JSON directly in dropped targets (#13484)

Converted maps into labels.Labels to avoid a lot of copying of data which leads to very high memory consumption while opening the /service-discovery endpoint in the Prometheus UI

Signed-off-by: Leegin <114397475+Leegin-darknight@users.noreply.github.com>

* Add ShardedPostings() support to TSDB (#10421)

This PR is a reference implementation of the proposal described in #10420.

In addition to what described in #10420, in this PR I've introduced labels.StableHash(). The idea is to offer an hashing function which doesn't change over time, and that's used by query sharding in order to get a stable behaviour over time. The implementation of labels.StableHash() is the hashing function used by Prometheus before stringlabels, and what's used by Grafana Mimir for query sharding (because built before stringlabels was a thing).

Follow up work
As mentioned in #10420, if this PR is accepted I'm also open to upload another foundamental piece used by Grafana Mimir query sharding to accelerate the query execution: an optional, configurable and fast in-memory cache for the series hashes.

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* storage/remote: document why two benchmarks are skipped

One was silently doing nothing; one was doing something but the work
didn't go up linearly with iteration count.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* Pod status changes not discovered by Kube Endpoints SD (#13337)

* fix(discovery/kubernetes/endpoints): react to changes on Pods because some modifications can occur on them without triggering an update on the related Endpoints (The Pod phase changing from Pending to Running e.g.).

---------

Signed-off-by: machine424 <ayoubmrini424@gmail.com>
Co-authored-by: Guillermo Sanchez Gavier <gsanchez@newrelic.com>

* Small improvements, add const, remove copypasta (#8106)

Signed-off-by: Mikhail Fesenko <proggga@gmail.com>
Signed-off-by: Jesus Vazquez <jesusvzpg@gmail.com>

* Proposal to improve FPointSlice and HPointSlice allocation. (#13448)

* Reusing points slice from previous series when the slice is under utilized
* Adding comments on the bench test

Signed-off-by: Alan Protasio <alanprot@gmail.com>

* lint

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* go mod tidy

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

---------

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
Signed-off-by: Erik Sommer <ersotech@posteo.de>
Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com>
Signed-off-by: bwplotka <bwplotka@gmail.com>
Signed-off-by: Arianna Vespri <arianna.vespri@yahoo.it>
Signed-off-by: machine424 <ayoubmrini424@gmail.com>
Signed-off-by: Daniel Nicholls <daniel.nicholls@resdiary.com>
Signed-off-by: Daniel Kerbel <nmdanny@gmail.com>
Signed-off-by: dependabot[bot] <support@github.com>
Signed-off-by: Jan Fajerski <jfajersk@redhat.com>
Signed-off-by: Kevin Mingtarja <kevin.mingtarja@gmail.com>
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Signed-off-by: Marc Tuduri <marctc@protonmail.com>
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Signed-off-by: Augustin Husson <augustin.husson@amadeus.com>
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Signed-off-by: tyltr <tylitianrui@126.com>
Signed-off-by: Ted Robertson 10043369+tredondo@users.noreply.github.com
Signed-off-by: Ivan Babrou <github@ivan.computer>
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Signed-off-by: Israel Blancas <iblancasa@gmail.com>
Signed-off-by: Ziqi Zhao <zhaoziqi9146@gmail.com>
Signed-off-by: Björn Rabenstein <github@rabenste.in>
Signed-off-by: Goutham <gouthamve@gmail.com>
Signed-off-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>
Signed-off-by: Chris Marchbanks <csmarchbanks@gmail.com>
Signed-off-by: Ben Ye <benye@amazon.com>
Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>
Signed-off-by: SuperQ <superq@gmail.com>
Signed-off-by: Ben Kochie <superq@gmail.com>
Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>
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Co-authored-by: Julian Wiedmann <jwi@linux.ibm.com>
Co-authored-by: Bryan Boreham <bjboreham@gmail.com>
Co-authored-by: Erik Sommer <ersotech@posteo.de>
Co-authored-by: Linas Medziunas <linas.medziunas@gmail.com>
Co-authored-by: Bartlomiej Plotka <bwplotka@gmail.com>
Co-authored-by: Arianna Vespri <arianna.vespri@yahoo.it>
Co-authored-by: machine424 <ayoubmrini424@gmail.com>
Co-authored-by: daniel-resdiary <109083091+daniel-resdiary@users.noreply.github.com>
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Co-authored-by: Paschalis Tsilias <tpaschalis@users.noreply.github.com>
Co-authored-by: Marc Tudurí <marctc@protonmail.com>
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Co-authored-by: zenador <zenador@users.noreply.github.com>
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Co-authored-by: Ben Kochie <superq@gmail.com>
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Co-authored-by: Marco Pracucci <marco@pracucci.com>
Co-authored-by: tyltr <tylitianrui@126.com>
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Co-authored-by: George Krajcsovits <krajorama@users.noreply.github.com>
Co-authored-by: Björn Rabenstein <github@rabenste.in>
Co-authored-by: Goutham <gouthamve@gmail.com>
Co-authored-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>
Co-authored-by: Chris Marchbanks <csmarchbanks@gmail.com>
Co-authored-by: Ben Ye <benye@amazon.com>
Co-authored-by: Oleg Zaytsev <mail@olegzaytsev.com>
Co-authored-by: Matthieu MOREL <matthieu.morel35@gmail.com>
Co-authored-by: Paulin Todev <paulin.todev@gmail.com>
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* remote write 2.0 - follow up improvements (#13478)

* move remote write proto version config from a remote storage config to a
per remote write configuration option

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* rename scrape config for metadata, fix 2.0 header var name/value (was
1.1), and more clean up

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* address review comments, mostly lint fixes

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* another lint fix

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* lint imports

Signed-off-by: Callum Styan <callumstyan@gmail.com>

---------

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* go mod tidy

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* Added commmentary to RW 2.0 protocol for easier adoption and explicit semantics. (#13502)

* Added commmentary to RW 2.0 protocol for easier adoption and explicit semantics.

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Apply suggestions from code review

Co-authored-by: Nico Pazos <32206519+npazosmendez@users.noreply.github.com>
Signed-off-by: Callum Styan <callumstyan@gmail.com>

---------

Signed-off-by: bwplotka <bwplotka@gmail.com>
Signed-off-by: Callum Styan <callumstyan@gmail.com>
Co-authored-by: Callum Styan <callumstyan@gmail.com>
Co-authored-by: Nico Pazos <32206519+npazosmendez@users.noreply.github.com>

* prw2.0: Added support for "custom" layouts for native histogram proto (#13558)

* prw2.0: Added support for "custom" layouts for native histogram.

Result of the discussions:
* https://github.com/prometheus/prometheus/issues/13475#issuecomment-1931496924
* https://cloud-native.slack.com/archives/C02KR205UMU/p1707301006347199

Signed-off-by: bwplotka <bwplotka@gmail.com>

* prw2.0: Added support for "custom" layouts for native histogram.

Result of the discussions:
* https://github.com/prometheus/prometheus/issues/13475#issuecomment-1931496924
* https://cloud-native.slack.com/archives/C02KR205UMU/p1707301006347199

Signed-off-by: bwplotka <bwplotka@gmail.com>

# Conflicts:
#	prompb/write/v2/types.pb.go

* Update prompb/write/v2/types.proto

Co-authored-by: George Krajcsovits <krajorama@users.noreply.github.com>
Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Addressed comments, fixed test.

Signed-off-by: bwplotka <bwplotka@gmail.com>

---------

Signed-off-by: bwplotka <bwplotka@gmail.com>
Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
Co-authored-by: George Krajcsovits <krajorama@users.noreply.github.com>

* first draft of content negotiation

Signed-off-by: Alex Greenbank <alex.greenbank@grafana.com>

* Lint

Signed-off-by: Alex Greenbank <alex.greenbank@grafana.com>

* Fix race in test

Signed-off-by: Alex Greenbank <alex.greenbank@grafana.com>

* Fix another test race

Signed-off-by: Alex Greenbank <alex.greenbank@grafana.com>

* Almost done with lint

Signed-off-by: Alex Greenbank <alex.greenbank@grafana.com>

* Fix todos around 405 HEAD handling

Signed-off-by: Alex Greenbank <alex.greenbank@grafana.com>

* Changes based on review comments

Signed-off-by: Alex Greenbank <alex.greenbank@grafana.com>

* Update storage/remote/client.go

Co-authored-by: Bartlomiej Plotka <bwplotka@gmail.com>
Signed-off-by: Alex Greenbank <alex.greenbank@grafana.com>

* Latest updates to review comments

Signed-off-by: Alex Greenbank <alex.greenbank@grafana.com>

* latest tweaks

Signed-off-by: Alex Greenbank <alex.greenbank@grafana.com>

* remote write 2.0 - content negotiation remediation (#13921)

* Consolidate renegotiation error into one, fix tests

Signed-off-by: Alex Greenbank <alex.greenbank@grafana.com>

* fix metric name and actuall increment counter

Signed-off-by: Alex Greenbank <alex.greenbank@grafana.com>

---------

Signed-off-by: Alex Greenbank <alex.greenbank@grafana.com>

* Fixes after main sync.

Signed-off-by: bwplotka <bwplotka@gmail.com>

* [PRW 2.0] Moved rw2 proto to the full path (both package name and placement) (#13973)

undefined

* [PRW2.0] Remove benchmark scripts (#13949)

See rationales on https://docs.google.com/document/d/1Bpf7mYjrHUhPHkie0qlnZFxzgqf_L32kM8ZOknSdJrU/edit

Signed-off-by: bwplotka <bwplotka@gmail.com>

* rw20: Update prw commentary after Callum spec review (#14136)

* rw20: Update prw commentary after Callum spec review

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Update types.proto

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

---------

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* [PRW 2.0] Updated spec proto (2.0-rc.1); deterministic v1 interop; to be sympathetic with implementation. (#14330)

* [PRW 2.0] Updated spec proto (2.0-rc.1); deterministic v1 interop; to be sympathetic with implementation.

Signed-off-by: bwplotka <bwplotka@gmail.com>

* update custom marshalling

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Removed confusing comments.

Signed-off-by: bwplotka <bwplotka@gmail.com>

---------

Signed-off-by: bwplotka <bwplotka@gmail.com>

* [PRW-2.0] (chain1) New Remote Write 2.0 Config options for 2.0-rc.1 spec. (#14335)

NOTE: For simple review this change does not touch remote/ packages, only main and configs.

Spec: https://prometheus.io/docs/specs/remote_write_spec_2_0

Supersedes https://github.com/prometheus/prometheus/pull/13968

Signed-off-by: bwplotka <bwplotka@gmail.com>

* [PRW-2.0] (part 2) Removed automatic negotiation, updates for the latest spec semantics in remote pkg (#14329)

* [PRW-2.0] (part2) Moved to latest basic negotiation & spec semantics.

Spec: https://github.com/prometheus/docs/pull/2462

Supersedes https://github.com/prometheus/prometheus/pull/13968

Signed-off-by: bwplotka <bwplotka@gmail.com>

# Conflicts:
#	config/config.go
#	docs/configuration/configuration.md
#	storage/remote/queue_manager_test.go
#	storage/remote/write.go
#	web/api/v1/api.go

* Addressed comments.

Signed-off-by: bwplotka <bwplotka@gmail.com>

---------

Signed-off-by: bwplotka <bwplotka@gmail.com>

* lint

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* storage/remote tests: refactor: extract function newTestQueueManager

To reduce repetition.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* use newTestQueueManager for test

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* go mod tidy

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* [PRW 2.0] (part3) moved type specific conversions to prompb and writev2 codecs.

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Added test for rwProtoMsgFlagParser; fixed TODO comment.

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Renamed DecodeV2WriteRequestStr to DecodeWriteV2Request (with tests).

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Addressed comments on remote_storage example, updated it for 2.0

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Fixed `--enable-feature=metadata-wal-records` docs and error when using PRW 2.0 without it.

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Addressed Callum comments on custom*.go

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Added TODO to genproto.

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Addressed Callum comments in remote pkg.

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Added metadata validation to write handler test; fixed ToMetadata.

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Addressed rest of Callum comments.

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Fixed writev2.FromMetadataType (was wrongly using prompb).

Signed-off-by: bwplotka <bwplotka@gmail.com>

* fix a few import whitespaces

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* add a default case with an error to the example RW receiver

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* more minor import whitespace chagnes

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* Apply suggestions from code review

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Update storage/remote/queue_manager_test.go

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

---------

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>
Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: bwplotka <bwplotka@gmail.com>
Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com>
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Signed-off-by: Erik Sommer <ersotech@posteo.de>
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Co-authored-by: Erik Sommer <ersotech@posteo.de>
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Co-authored-by: Alan Protasio <alanprot@gmail.com>
pull/14416/head
Bartlomiej Plotka 5 months ago committed by GitHub
parent c9bc1c2be0
commit 9198952f7c
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194

@ -194,6 +194,9 @@ func (c *flagConfig) setFeatureListOptions(logger log.Logger) error {
case "extra-scrape-metrics":
c.scrape.ExtraMetrics = true
level.Info(logger).Log("msg", "Experimental additional scrape metrics enabled")
case "metadata-wal-records":
c.scrape.AppendMetadata = true
level.Info(logger).Log("msg", "Experimental metadata records in WAL enabled, required for remote write 2.0")
case "new-service-discovery-manager":
c.enableNewSDManager = true
level.Info(logger).Log("msg", "Experimental service discovery manager")
@ -322,9 +325,15 @@ func main() {
a.Flag("web.enable-admin-api", "Enable API endpoints for admin control actions.").
Default("false").BoolVar(&cfg.web.EnableAdminAPI)
// TODO(bwplotka): Consider allowing those remote receive flags to be changed in config.
// See https://github.com/prometheus/prometheus/issues/14410
a.Flag("web.enable-remote-write-receiver", "Enable API endpoint accepting remote write requests.").
Default("false").BoolVar(&cfg.web.EnableRemoteWriteReceiver)
supportedRemoteWriteProtoMsgs := config.RemoteWriteProtoMsgs{config.RemoteWriteProtoMsgV1, config.RemoteWriteProtoMsgV2}
a.Flag("web.remote-write-receiver.accepted-protobuf-messages", fmt.Sprintf("List of the remote write protobuf messages to accept when receiving the remote writes. Supported values: %v", supportedRemoteWriteProtoMsgs.String())).
Default(supportedRemoteWriteProtoMsgs.Strings()...).SetValue(rwProtoMsgFlagValue(&cfg.web.AcceptRemoteWriteProtoMsgs))
a.Flag("web.console.templates", "Path to the console template directory, available at /consoles.").
Default("consoles").StringVar(&cfg.web.ConsoleTemplatesPath)
@ -646,7 +655,7 @@ func main() {
var (
localStorage = &readyStorage{stats: tsdb.NewDBStats()}
scraper = &readyScrapeManager{}
remoteStorage = remote.NewStorage(log.With(logger, "component", "remote"), prometheus.DefaultRegisterer, localStorage.StartTime, localStoragePath, time.Duration(cfg.RemoteFlushDeadline), scraper)
remoteStorage = remote.NewStorage(log.With(logger, "component", "remote"), prometheus.DefaultRegisterer, localStorage.StartTime, localStoragePath, time.Duration(cfg.RemoteFlushDeadline), scraper, cfg.scrape.AppendMetadata)
fanoutStorage = storage.NewFanout(logger, localStorage, remoteStorage)
)
@ -1767,3 +1776,39 @@ type discoveryManager interface {
Run() error
SyncCh() <-chan map[string][]*targetgroup.Group
}
// rwProtoMsgFlagParser is a custom parser for config.RemoteWriteProtoMsg enum.
type rwProtoMsgFlagParser struct {
msgs *[]config.RemoteWriteProtoMsg
}
func rwProtoMsgFlagValue(msgs *[]config.RemoteWriteProtoMsg) kingpin.Value {
return &rwProtoMsgFlagParser{msgs: msgs}
}
// IsCumulative is used by kingpin to tell if it's an array or not.
func (p *rwProtoMsgFlagParser) IsCumulative() bool {
return true
}
func (p *rwProtoMsgFlagParser) String() string {
ss := make([]string, 0, len(*p.msgs))
for _, t := range *p.msgs {
ss = append(ss, string(t))
}
return strings.Join(ss, ",")
}
func (p *rwProtoMsgFlagParser) Set(opt string) error {
t := config.RemoteWriteProtoMsg(opt)
if err := t.Validate(); err != nil {
return err
}
for _, prev := range *p.msgs {
if prev == t {
return fmt.Errorf("duplicated %v flag value, got %v already", t, *p.msgs)
}
}
*p.msgs = append(*p.msgs, t)
return nil
}

@ -30,11 +30,13 @@ import (
"testing"
"time"
"github.com/alecthomas/kingpin/v2"
"github.com/go-kit/log"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/common/model"
"github.com/stretchr/testify/require"
"github.com/prometheus/prometheus/config"
"github.com/prometheus/prometheus/model/labels"
"github.com/prometheus/prometheus/notifier"
"github.com/prometheus/prometheus/rules"
@ -499,3 +501,65 @@ func TestDocumentation(t *testing.T) {
require.Equal(t, string(expectedContent), generatedContent, "Generated content does not match documentation. Hint: run `make cli-documentation`.")
}
func TestRwProtoMsgFlagParser(t *testing.T) {
defaultOpts := config.RemoteWriteProtoMsgs{
config.RemoteWriteProtoMsgV1, config.RemoteWriteProtoMsgV2,
}
for _, tcase := range []struct {
args []string
expected []config.RemoteWriteProtoMsg
expectedErr error
}{
{
args: nil,
expected: defaultOpts,
},
{
args: []string{"--test-proto-msgs", "test"},
expectedErr: errors.New("unknown remote write protobuf message test, supported: prometheus.WriteRequest, io.prometheus.write.v2.Request"),
},
{
args: []string{"--test-proto-msgs", "io.prometheus.write.v2.Request"},
expected: config.RemoteWriteProtoMsgs{config.RemoteWriteProtoMsgV2},
},
{
args: []string{
"--test-proto-msgs", "io.prometheus.write.v2.Request",
"--test-proto-msgs", "io.prometheus.write.v2.Request",
},
expectedErr: errors.New("duplicated io.prometheus.write.v2.Request flag value, got [io.prometheus.write.v2.Request] already"),
},
{
args: []string{
"--test-proto-msgs", "io.prometheus.write.v2.Request",
"--test-proto-msgs", "prometheus.WriteRequest",
},
expected: config.RemoteWriteProtoMsgs{config.RemoteWriteProtoMsgV2, config.RemoteWriteProtoMsgV1},
},
{
args: []string{
"--test-proto-msgs", "io.prometheus.write.v2.Request",
"--test-proto-msgs", "prometheus.WriteRequest",
"--test-proto-msgs", "io.prometheus.write.v2.Request",
},
expectedErr: errors.New("duplicated io.prometheus.write.v2.Request flag value, got [io.prometheus.write.v2.Request prometheus.WriteRequest] already"),
},
} {
t.Run(strings.Join(tcase.args, ","), func(t *testing.T) {
a := kingpin.New("test", "")
var opt []config.RemoteWriteProtoMsg
a.Flag("test-proto-msgs", "").Default(defaultOpts.Strings()...).SetValue(rwProtoMsgFlagValue(&opt))
_, err := a.Parse(tcase.args)
if tcase.expectedErr != nil {
require.Error(t, err)
require.Equal(t, tcase.expectedErr, err)
} else {
require.NoError(t, err)
require.Equal(t, tcase.expected, opt)
}
})
}
}

@ -180,6 +180,7 @@ var (
// DefaultRemoteWriteConfig is the default remote write configuration.
DefaultRemoteWriteConfig = RemoteWriteConfig{
RemoteTimeout: model.Duration(30 * time.Second),
ProtobufMessage: RemoteWriteProtoMsgV1,
QueueConfig: DefaultQueueConfig,
MetadataConfig: DefaultMetadataConfig,
HTTPClientConfig: config.DefaultHTTPClientConfig,
@ -279,7 +280,7 @@ func (c *Config) GetScrapeConfigs() ([]*ScrapeConfig, error) {
jobNames := map[string]string{}
for i, scfg := range c.ScrapeConfigs {
// We do these checks for library users that would not call Validate in
// We do these checks for library users that would not call validate in
// Unmarshal.
if err := scfg.Validate(c.GlobalConfig); err != nil {
return nil, err
@ -1055,6 +1056,49 @@ func CheckTargetAddress(address model.LabelValue) error {
return nil
}
// RemoteWriteProtoMsg represents the known protobuf message for the remote write
// 1.0 and 2.0 specs.
type RemoteWriteProtoMsg string
// Validate returns error if the given reference for the protobuf message is not supported.
func (s RemoteWriteProtoMsg) Validate() error {
switch s {
case RemoteWriteProtoMsgV1, RemoteWriteProtoMsgV2:
return nil
default:
return fmt.Errorf("unknown remote write protobuf message %v, supported: %v", s, RemoteWriteProtoMsgs{RemoteWriteProtoMsgV1, RemoteWriteProtoMsgV2}.String())
}
}
type RemoteWriteProtoMsgs []RemoteWriteProtoMsg
func (m RemoteWriteProtoMsgs) Strings() []string {
ret := make([]string, 0, len(m))
for _, typ := range m {
ret = append(ret, string(typ))
}
return ret
}
func (m RemoteWriteProtoMsgs) String() string {
return strings.Join(m.Strings(), ", ")
}
var (
// RemoteWriteProtoMsgV1 represents the deprecated `prometheus.WriteRequest` protobuf
// message introduced in the https://prometheus.io/docs/specs/remote_write_spec/.
//
// NOTE: This string is used for both HTTP header values and config value, so don't change
// this reference.
RemoteWriteProtoMsgV1 RemoteWriteProtoMsg = "prometheus.WriteRequest"
// RemoteWriteProtoMsgV2 represents the `io.prometheus.write.v2.Request` protobuf
// message introduced in https://prometheus.io/docs/specs/remote_write_spec_2_0/
//
// NOTE: This string is used for both HTTP header values and config value, so don't change
// this reference.
RemoteWriteProtoMsgV2 RemoteWriteProtoMsg = "io.prometheus.write.v2.Request"
)
// RemoteWriteConfig is the configuration for writing to remote storage.
type RemoteWriteConfig struct {
URL *config.URL `yaml:"url"`
@ -1064,6 +1108,9 @@ type RemoteWriteConfig struct {
Name string `yaml:"name,omitempty"`
SendExemplars bool `yaml:"send_exemplars,omitempty"`
SendNativeHistograms bool `yaml:"send_native_histograms,omitempty"`
// ProtobufMessage specifies the protobuf message to use against the remote
// receiver as specified in https://prometheus.io/docs/specs/remote_write_spec_2_0/
ProtobufMessage RemoteWriteProtoMsg `yaml:"protobuf_message,omitempty"`
// We cannot do proper Go type embedding below as the parser will then parse
// values arbitrarily into the overflow maps of further-down types.
@ -1098,6 +1145,10 @@ func (c *RemoteWriteConfig) UnmarshalYAML(unmarshal func(interface{}) error) err
return err
}
if err := c.ProtobufMessage.Validate(); err != nil {
return fmt.Errorf("invalid protobuf_message value: %w", err)
}
// The UnmarshalYAML method of HTTPClientConfig is not being called because it's not a pointer.
// We cannot make it a pointer as the parser panics for inlined pointer structs.
// Thus we just do its validation here.

@ -109,6 +109,7 @@ var expectedConf = &Config{
RemoteWriteConfigs: []*RemoteWriteConfig{
{
URL: mustParseURL("http://remote1/push"),
ProtobufMessage: RemoteWriteProtoMsgV1,
RemoteTimeout: model.Duration(30 * time.Second),
Name: "drop_expensive",
WriteRelabelConfigs: []*relabel.Config{
@ -138,6 +139,7 @@ var expectedConf = &Config{
},
{
URL: mustParseURL("http://remote2/push"),
ProtobufMessage: RemoteWriteProtoMsgV2,
RemoteTimeout: model.Duration(30 * time.Second),
QueueConfig: DefaultQueueConfig,
MetadataConfig: DefaultMetadataConfig,
@ -1800,6 +1802,10 @@ var expectedErrors = []struct {
filename: "remote_write_authorization_header.bad.yml",
errMsg: `authorization header must be changed via the basic_auth, authorization, oauth2, sigv4, or azuread parameter`,
},
{
filename: "remote_write_wrong_msg.bad.yml",
errMsg: `invalid protobuf_message value: unknown remote write protobuf message io.prometheus.writet.v2.Request, supported: prometheus.WriteRequest, io.prometheus.write.v2.Request`,
},
{
filename: "remote_write_url_missing.bad.yml",
errMsg: `url for remote_write is empty`,

@ -37,6 +37,7 @@ remote_write:
key_file: valid_key_file
- url: http://remote2/push
protobuf_message: io.prometheus.write.v2.Request
name: rw_tls
tls_config:
cert_file: valid_cert_file

@ -0,0 +1,3 @@
remote_write:
- url: localhost:9090
protobuf_message: io.prometheus.writet.v2.Request # typo in 'write"

@ -26,6 +26,7 @@ The Prometheus monitoring server
| <code class="text-nowrap">--web.enable-lifecycle</code> | Enable shutdown and reload via HTTP request. | `false` |
| <code class="text-nowrap">--web.enable-admin-api</code> | Enable API endpoints for admin control actions. | `false` |
| <code class="text-nowrap">--web.enable-remote-write-receiver</code> | Enable API endpoint accepting remote write requests. | `false` |
| <code class="text-nowrap">--web.remote-write-receiver.accepted-protobuf-messages</code> | List of the remote write protobuf messages to accept when receiving the remote writes. Supported values: prometheus.WriteRequest, io.prometheus.write.v2.Request | `prometheus.WriteRequest` |
| <code class="text-nowrap">--web.console.templates</code> | Path to the console template directory, available at /consoles. | `consoles` |
| <code class="text-nowrap">--web.console.libraries</code> | Path to the console library directory. | `console_libraries` |
| <code class="text-nowrap">--web.page-title</code> | Document title of Prometheus instance. | `Prometheus Time Series Collection and Processing Server` |

@ -3575,6 +3575,17 @@ this functionality.
# The URL of the endpoint to send samples to.
url: <string>
# protobuf message to use when writing to the remote write endpoint.
#
# * The `prometheus.WriteRequest` represents the message introduced in Remote Write 1.0, which
# will be deprecated eventually.
# * The `io.prometheus.write.v2.Request` was introduced in Remote Write 2.0 and replaces the former,
# by improving efficiency and sending metadata, created timestamp and native histograms by default.
#
# Before changing this value, consult with your remote storage provider (or test) what message it supports.
# Read more on https://prometheus.io/docs/specs/remote_write_spec_2_0/#io-prometheus-write-v2-request
[ protobuf_message: <prometheus.WriteRequest | io.prometheus.write.v2.Request> | default = prometheus.WriteRequest ]
# Timeout for requests to the remote write endpoint.
[ remote_timeout: <duration> | default = 30s ]
@ -3596,6 +3607,7 @@ write_relabel_configs:
[ send_exemplars: <boolean> | default = false ]
# Enables sending of native histograms, also known as sparse histograms, over remote write.
# For the `io.prometheus.write.v2.Request` message, this option is noop (always true).
[ send_native_histograms: <boolean> | default = false ]
# Sets the `Authorization` header on every remote write request with the
@ -3609,7 +3621,7 @@ basic_auth:
# Optional `Authorization` header configuration.
authorization:
# Sets the authentication type.
[ type: <string> | default: Bearer ]
[ type: <string> | default = Bearer ]
# Sets the credentials. It is mutually exclusive with
# `credentials_file`.
[ credentials: <secret> ]
@ -3673,7 +3685,7 @@ tls_config:
# contain port numbers.
[ no_proxy: <string> ]
# Use proxy URL indicated by environment variables (HTTP_PROXY, https_proxy, HTTPs_PROXY, https_proxy, and no_proxy)
[ proxy_from_environment: <boolean> | default: false ]
[ proxy_from_environment: <boolean> | default = false ]
# Specifies headers to send to proxies during CONNECT requests.
[ proxy_connect_header:
[ <string>: [<secret>, ...] ] ]
@ -3682,7 +3694,7 @@ tls_config:
[ follow_redirects: <boolean> | default = true ]
# Whether to enable HTTP2.
[ enable_http2: <boolean> | default: true ]
[ enable_http2: <boolean> | default = true ]
# Configures the queue used to write to remote storage.
queue_config:
@ -3712,7 +3724,10 @@ queue_config:
# which means that all samples are sent.
[ sample_age_limit: <duration> | default = 0s ]
# Configures the sending of series metadata to remote storage.
# Configures the sending of series metadata to remote storage
# if the `prometheus.WriteRequest` message was chosen. When
# `io.prometheus.write.v2.Request` is used, metadata is always sent.
#
# Metadata configuration is subject to change at any point
# or be removed in future releases.
metadata_config:

@ -224,3 +224,13 @@ When the `concurrent-rule-eval` feature flag is enabled, rules without any depen
This has the potential to improve rule group evaluation latency and resource utilization at the expense of adding more concurrent query load.
The number of concurrent rule evaluations can be configured with `--rules.max-concurrent-rule-evals`, which is set to `4` by default.
## Metadata WAL Records
`--enable-feature=metadata-wal-records`
When enabled, Prometheus will store metadata in-memory and keep track of
metadata changes as WAL records on a per-series basis.
This must be used if
you are also using remote write 2.0 as it will only gather metadata from the WAL.

@ -7,6 +7,7 @@ To use it:
```
go build
./example_write_adapter
```
@ -15,10 +16,19 @@ go build
```yaml
remote_write:
- url: "http://localhost:1234/receive"
protobuf_message: "io.prometheus.write.v2.Request"
```
or for deprecated Remote Write 1.0 message:
```yaml
remote_write:
- url: "http://localhost:1234/receive"
protobuf_message: "prometheus.WriteRequest"
```
Then start Prometheus:
Then start Prometheus (in separate terminal):
```
./prometheus
./prometheus --enable-feature=metadata-wal-records
```

@ -18,44 +18,103 @@ import (
"log"
"net/http"
"github.com/prometheus/common/model"
"github.com/prometheus/prometheus/model/labels"
"github.com/prometheus/prometheus/prompb"
writev2 "github.com/prometheus/prometheus/prompb/io/prometheus/write/v2"
"github.com/prometheus/prometheus/storage/remote"
)
func main() {
http.HandleFunc("/receive", func(w http.ResponseWriter, r *http.Request) {
enc := r.Header.Get("Content-Encoding")
if enc == "" {
http.Error(w, "missing Content-Encoding header", http.StatusUnsupportedMediaType)
return
}
if enc != "snappy" {
http.Error(w, "unknown encoding, only snappy supported", http.StatusUnsupportedMediaType)
return
}
contentType := r.Header.Get("Content-Type")
if contentType == "" {
http.Error(w, "missing Content-Type header", http.StatusUnsupportedMediaType)
}
defer func() { _ = r.Body.Close() }()
// Very simplistic content parsing, see
// storage/remote/write_handler.go#WriteHandler.ServeHTTP for production example.
switch contentType {
case "application/x-protobuf", "application/x-protobuf;proto=prometheus.WriteRequest":
req, err := remote.DecodeWriteRequest(r.Body)
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
printV1(req)
case "application/x-protobuf;proto=io.prometheus.write.v2.Request":
req, err := remote.DecodeWriteV2Request(r.Body)
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
printV2(req)
default:
msg := fmt.Sprintf("Unknown remote write content type: %s", contentType)
fmt.Println(msg)
http.Error(w, msg, http.StatusBadRequest)
}
})
log.Fatal(http.ListenAndServe(":1234", nil))
}
func printV1(req *prompb.WriteRequest) {
b := labels.NewScratchBuilder(0)
for _, ts := range req.Timeseries {
m := make(model.Metric, len(ts.Labels))
for _, l := range ts.Labels {
m[model.LabelName(l.Name)] = model.LabelValue(l.Value)
}
fmt.Println(m)
fmt.Println(ts.ToLabels(&b, nil))
for _, s := range ts.Samples {
fmt.Printf("\tSample: %f %d\n", s.Value, s.Timestamp)
}
for _, e := range ts.Exemplars {
m := make(model.Metric, len(e.Labels))
for _, l := range e.Labels {
m[model.LabelName(l.Name)] = model.LabelValue(l.Value)
for _, ep := range ts.Exemplars {
e := ep.ToExemplar(&b, nil)
fmt.Printf("\tExemplar: %+v %f %d\n", e.Labels, e.Value, ep.Timestamp)
}
fmt.Printf("\tExemplar: %+v %f %d\n", m, e.Value, e.Timestamp)
for _, hp := range ts.Histograms {
if hp.IsFloatHistogram() {
h := hp.ToFloatHistogram()
fmt.Printf("\tHistogram: %s\n", h.String())
continue
}
h := hp.ToIntHistogram()
fmt.Printf("\tHistogram: %s\n", h.String())
}
}
}
func printV2(req *writev2.Request) {
b := labels.NewScratchBuilder(0)
for _, ts := range req.Timeseries {
l := ts.ToLabels(&b, req.Symbols)
m := ts.ToMetadata(req.Symbols)
fmt.Println(l, m)
for _, s := range ts.Samples {
fmt.Printf("\tSample: %f %d\n", s.Value, s.Timestamp)
}
for _, ep := range ts.Exemplars {
e := ep.ToExemplar(&b, req.Symbols)
fmt.Printf("\tExemplar: %+v %f %d\n", e.Labels, e.Value, ep.Timestamp)
}
for _, hp := range ts.Histograms {
h := remote.HistogramProtoToHistogram(hp)
if hp.IsFloatHistogram() {
h := hp.ToFloatHistogram()
fmt.Printf("\tHistogram: %s\n", h.String())
continue
}
h := hp.ToIntHistogram()
fmt.Printf("\tHistogram: %s\n", h.String())
}
}
})
log.Fatal(http.ListenAndServe(":1234", nil))
}

@ -17,10 +17,10 @@ require (
require (
github.com/Azure/azure-sdk-for-go/sdk/azcore v1.11.1 // indirect
github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.5.2 // indirect
github.com/Azure/azure-sdk-for-go/sdk/internal v1.5.2 // indirect
github.com/Azure/azure-sdk-for-go/sdk/internal v1.6.0 // indirect
github.com/AzureAD/microsoft-authentication-library-for-go v1.2.2 // indirect
github.com/alecthomas/units v0.0.0-20231202071711-9a357b53e9c9 // indirect
github.com/aws/aws-sdk-go v1.51.25 // indirect
github.com/aws/aws-sdk-go v1.53.16 // indirect
github.com/beorn7/perks v1.0.1 // indirect
github.com/cespare/xxhash/v2 v2.3.0 // indirect
github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
@ -31,8 +31,7 @@ require (
github.com/go-logr/stdr v1.2.2 // indirect
github.com/golang-jwt/jwt/v5 v5.2.1 // indirect
github.com/google/uuid v1.6.0 // indirect
github.com/grafana/regexp v0.0.0-20221122212121-6b5c0a4cb7fd // indirect
github.com/hashicorp/go-version v1.6.0 // indirect
github.com/grafana/regexp v0.0.0-20240518133315-a468a5bfb3bc // indirect
github.com/jmespath/go-jmespath v0.4.0 // indirect
github.com/jpillora/backoff v1.0.0 // indirect
github.com/json-iterator/go v1.1.12 // indirect
@ -49,13 +48,12 @@ require (
github.com/prometheus/common/sigv4 v0.1.0 // indirect
github.com/prometheus/procfs v0.15.1 // indirect
github.com/xhit/go-str2duration/v2 v2.1.0 // indirect
go.opentelemetry.io/collector/featuregate v1.5.0 // indirect
go.opentelemetry.io/collector/pdata v1.5.0 // indirect
go.opentelemetry.io/collector/semconv v0.98.0 // indirect
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.50.0 // indirect
go.opentelemetry.io/otel v1.25.0 // indirect
go.opentelemetry.io/otel/metric v1.25.0 // indirect
go.opentelemetry.io/otel/trace v1.25.0 // indirect
go.opentelemetry.io/collector/pdata v1.8.0 // indirect
go.opentelemetry.io/collector/semconv v0.101.0 // indirect
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.52.0 // indirect
go.opentelemetry.io/otel v1.27.0 // indirect
go.opentelemetry.io/otel/metric v1.27.0 // indirect
go.opentelemetry.io/otel/trace v1.27.0 // indirect
go.uber.org/atomic v1.11.0 // indirect
go.uber.org/multierr v1.11.0 // indirect
golang.org/x/crypto v0.24.0 // indirect
@ -64,8 +62,8 @@ require (
golang.org/x/sys v0.21.0 // indirect
golang.org/x/text v0.16.0 // indirect
golang.org/x/time v0.5.0 // indirect
google.golang.org/genproto/googleapis/rpc v0.0.0-20240415180920-8c6c420018be // indirect
google.golang.org/grpc v1.63.2 // indirect
google.golang.org/genproto/googleapis/rpc v0.0.0-20240528184218-531527333157 // indirect
google.golang.org/grpc v1.64.0 // indirect
google.golang.org/protobuf v1.34.2 // indirect
gopkg.in/yaml.v2 v2.4.0 // indirect
gopkg.in/yaml.v3 v3.0.1 // indirect
@ -82,4 +80,10 @@ exclude (
cloud.google.com/go v0.34.0
cloud.google.com/go v0.65.0
cloud.google.com/go v0.82.0
// Fixing ambiguous import: found package google.golang.org/genproto/googleapis/api/annotations in multiple modules.
google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1
)
// TODO(bwplotka): Move to main branch commit or perhaps released version.
replace github.com/prometheus/prometheus => github.com/prometheus/prometheus v0.53.1-0.20240704074759-c137febfcf8c

@ -2,10 +2,10 @@ github.com/Azure/azure-sdk-for-go/sdk/azcore v1.11.1 h1:E+OJmp2tPvt1W+amx48v1eqb
github.com/Azure/azure-sdk-for-go/sdk/azcore v1.11.1/go.mod h1:a6xsAQUZg+VsS3TJ05SRp524Hs4pZ/AeFSr5ENf0Yjo=
github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.5.2 h1:FDif4R1+UUR+00q6wquyX90K7A8dN+R5E8GEadoP7sU=
github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.5.2/go.mod h1:aiYBYui4BJ/BJCAIKs92XiPyQfTaBWqvHujDwKb6CBU=
github.com/Azure/azure-sdk-for-go/sdk/internal v1.5.2 h1:LqbJ/WzJUwBf8UiaSzgX7aMclParm9/5Vgp+TY51uBQ=
github.com/Azure/azure-sdk-for-go/sdk/internal v1.5.2/go.mod h1:yInRyqWXAuaPrgI7p70+lDDgh3mlBohis29jGMISnmc=
github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/compute/armcompute/v5 v5.6.0 h1:ui3YNbxfW7J3tTFIZMH6LIGRjCngp+J+nIFlnizfNTE=
github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/compute/armcompute/v5 v5.6.0/go.mod h1:gZmgV+qBqygoznvqo2J9oKZAFziqhLZ2xE/WVUmzkHA=
github.com/Azure/azure-sdk-for-go/sdk/internal v1.6.0 h1:sUFnFjzDUie80h24I7mrKtwCKgLY9L8h5Tp2x9+TWqk=
github.com/Azure/azure-sdk-for-go/sdk/internal v1.6.0/go.mod h1:52JbnQTp15qg5mRkMBHwp0j0ZFwHJ42Sx3zVV5RE9p0=
github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/compute/armcompute/v5 v5.7.0 h1:LkHbJbgF3YyvC53aqYGR+wWQDn2Rdp9AQdGndf9QvY4=
github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/compute/armcompute/v5 v5.7.0/go.mod h1:QyiQdW4f4/BIfB8ZutZ2s+28RAgfa/pT+zS++ZHyM1I=
github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/network/armnetwork/v4 v4.3.0 h1:bXwSugBiSbgtz7rOtbfGf+woewp4f06orW9OP5BjHLA=
github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/network/armnetwork/v4 v4.3.0/go.mod h1:Y/HgrePTmGy9HjdSGTqZNa+apUpTVIEVKXJyARP2lrk=
github.com/AzureAD/microsoft-authentication-library-for-go v1.2.2 h1:XHOnouVk1mxXfQidrMEnLlPk9UMeRtyBTnEFtxkV0kU=
@ -26,8 +26,8 @@ github.com/alecthomas/units v0.0.0-20231202071711-9a357b53e9c9/go.mod h1:OMCwj8V
github.com/armon/go-metrics v0.4.1 h1:hR91U9KYmb6bLBYLQjyM+3j+rcd/UhE+G78SFnF8gJA=
github.com/armon/go-metrics v0.4.1/go.mod h1:E6amYzXo6aW1tqzoZGT755KkbgrJsSdpwZ+3JqfkOG4=
github.com/aws/aws-sdk-go v1.38.35/go.mod h1:hcU610XS61/+aQV88ixoOzUoG7v3b31pl2zKMmprdro=
github.com/aws/aws-sdk-go v1.51.25 h1:DjTT8mtmsachhV6yrXR8+yhnG6120dazr720nopRsls=
github.com/aws/aws-sdk-go v1.51.25/go.mod h1:LF8svs817+Nz+DmiMQKTO3ubZ/6IaTpq3TjupRn3Eqk=
github.com/aws/aws-sdk-go v1.53.16 h1:8oZjKQO/ml1WLUZw5hvF7pvYjPf8o9f57Wldoy/q9Qc=
github.com/aws/aws-sdk-go v1.53.16/go.mod h1:LF8svs817+Nz+DmiMQKTO3ubZ/6IaTpq3TjupRn3Eqk=
github.com/bboreham/go-loser v0.0.0-20230920113527-fcc2c21820a3 h1:6df1vn4bBlDDo4tARvBm7l6KA9iVMnE3NWizDeWSrps=
github.com/bboreham/go-loser v0.0.0-20230920113527-fcc2c21820a3/go.mod h1:CIWtjkly68+yqLPbvwwR/fjNJA/idrtULjZWh2v1ys0=
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
@ -37,8 +37,8 @@ github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6r
github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/cncf/xds/go v0.0.0-20231128003011-0fa0005c9caa h1:jQCWAUqqlij9Pgj2i/PB79y4KOPYVyFYdROxgaCwdTQ=
github.com/cncf/xds/go v0.0.0-20231128003011-0fa0005c9caa/go.mod h1:x/1Gn8zydmfq8dk6e9PdstVsDgu9RuyIIJqAaF//0IM=
github.com/cncf/xds/go v0.0.0-20240318125728-8a4994d93e50 h1:DBmgJDC9dTfkVyGgipamEh2BpGYxScCH1TOF1LL1cXc=
github.com/cncf/xds/go v0.0.0-20240318125728-8a4994d93e50/go.mod h1:5e1+Vvlzido69INQaVO6d87Qn543Xr6nooe9Kz7oBFM=
github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@ -46,14 +46,14 @@ github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1
github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dennwc/varint v1.0.0 h1:kGNFFSSw8ToIy3obO/kKr8U9GZYUAxQEVuix4zfDWzE=
github.com/dennwc/varint v1.0.0/go.mod h1:hnItb35rvZvJrbTALZtY/iQfDs48JKRG1RPpgziApxA=
github.com/digitalocean/godo v1.113.0 h1:CLtCxlP4wDAjKIQ+Hshht/UNbgAp8/J/XBH1ZtDCF9Y=
github.com/digitalocean/godo v1.113.0/go.mod h1:Z2mTP848Vi3IXXl5YbPekUgr4j4tOePomA+OE1Ag98w=
github.com/digitalocean/godo v1.117.0 h1:WVlTe09melDYTd7VCVyvHcNWbgB+uI1O115+5LOtdSw=
github.com/digitalocean/godo v1.117.0/go.mod h1:Vk0vpCot2HOAJwc5WE8wljZGtJ3ZtWIc8MQ8rF38sdo=
github.com/distribution/reference v0.5.0 h1:/FUIFXtfc/x2gpa5/VGfiGLuOIdYa1t65IKK2OFGvA0=
github.com/distribution/reference v0.5.0/go.mod h1:BbU0aIcezP1/5jX/8MP0YiH4SdvB5Y4f/wlDRiLyi3E=
github.com/dnaeon/go-vcr v1.2.0 h1:zHCHvJYTMh1N7xnV7zf1m1GPBF9Ad0Jk/whtQ1663qI=
github.com/dnaeon/go-vcr v1.2.0/go.mod h1:R4UdLID7HZT3taECzJs4YgbbH6PIGXB6W/sc5OLb6RQ=
github.com/docker/docker v26.0.1+incompatible h1:t39Hm6lpXuXtgkF0dm1t9a5HkbUfdGy6XbWexmGr+hA=
github.com/docker/docker v26.0.1+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
github.com/docker/docker v26.1.3+incompatible h1:lLCzRbrVZrljpVNobJu1J2FHk8V0s4BawoZippkc+xo=
github.com/docker/docker v26.1.3+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
github.com/docker/go-connections v0.4.0 h1:El9xVISelRB7BuFusrZozjnkIM5YnzCViNKohAFqRJQ=
github.com/docker/go-connections v0.4.0/go.mod h1:Gbd7IOopHjR8Iph03tsViu4nIes5XhDvyHbTtUxmeec=
github.com/docker/go-units v0.5.0 h1:69rxXcBk27SvSaaxTtLh/8llcHD8vYHT7WSdRZ/jvr4=
@ -68,8 +68,8 @@ github.com/envoyproxy/protoc-gen-validate v1.0.4 h1:gVPz/FMfvh57HdSJQyvBtF00j8JU
github.com/envoyproxy/protoc-gen-validate v1.0.4/go.mod h1:qys6tmnRsYrQqIhm2bvKZH4Blx/1gTIZ2UKVY1M+Yew=
github.com/facette/natsort v0.0.0-20181210072756-2cd4dd1e2dcb h1:IT4JYU7k4ikYg1SCxNI1/Tieq/NFvh6dzLdgi7eu0tM=
github.com/facette/natsort v0.0.0-20181210072756-2cd4dd1e2dcb/go.mod h1:bH6Xx7IW64qjjJq8M2u4dxNaBiDfKK+z/3eGDpXEQhc=
github.com/fatih/color v1.15.0 h1:kOqh6YHBtK8aywxGerMG2Eq3H6Qgoqeo13Bk2Mv/nBs=
github.com/fatih/color v1.15.0/go.mod h1:0h5ZqXfHYED7Bhv2ZJamyIOUej9KtShiJESRwBDUSsw=
github.com/fatih/color v1.16.0 h1:zmkK9Ngbjj+K0yRhTVONQh1p/HknKYSlNT+vZCzyokM=
github.com/fatih/color v1.16.0/go.mod h1:fL2Sau1YI5c0pdGEVCbKQbLXB6edEj1ZgiY4NijnWvE=
github.com/felixge/httpsnoop v1.0.4 h1:NFTV2Zj1bL4mc9sqWACXbQFVBBg2W3GPvqp8/ESS2Wg=
github.com/felixge/httpsnoop v1.0.4/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
@ -95,8 +95,8 @@ github.com/go-openapi/jsonreference v0.20.4 h1:bKlDxQxQJgwpUSgOENiMPzCTBVuc7vTdX
github.com/go-openapi/jsonreference v0.20.4/go.mod h1:5pZJyJP2MnYCpoeoMAql78cCHauHj0V9Lhc506VOpw4=
github.com/go-openapi/swag v0.22.9 h1:XX2DssF+mQKM2DHsbgZK74y/zj4mo9I99+89xUmuZCE=
github.com/go-openapi/swag v0.22.9/go.mod h1:3/OXnFfnMAwBD099SwYRk7GD3xOrr1iL7d/XNLXVVwE=
github.com/go-resty/resty/v2 v2.12.0 h1:rsVL8P90LFvkUYq/V5BTVe203WfRIU4gvcf+yfzJzGA=
github.com/go-resty/resty/v2 v2.12.0/go.mod h1:o0yGPrkS3lOe1+eFajk6kBW8ScXzwU3hD69/gt2yB/0=
github.com/go-resty/resty/v2 v2.13.1 h1:x+LHXBI2nMB1vqndymf26quycC4aggYJ7DECYbiz03g=
github.com/go-resty/resty/v2 v2.13.1/go.mod h1:GznXlLxkq6Nh4sU59rPmUw3VtgpO3aS96ORAI6Q7d+0=
github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
github.com/go-zookeeper/zk v1.0.3 h1:7M2kwOsc//9VeeFiPtf+uSJlVpU66x9Ba5+8XK7/TDg=
github.com/go-zookeeper/zk v1.0.3/go.mod h1:nOB03cncLtlp4t+UAkGSV+9beXP/akpekBwL+UX1Qcw=
@ -135,40 +135,38 @@ github.com/google/gofuzz v1.2.0 h1:xRy4A+RhZaiKjJ1bPfwQ8sedCA+YS2YcCHW6ec7JMi0=
github.com/google/gofuzz v1.2.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gophercloud/gophercloud v1.11.0 h1:ls0O747DIq1D8SUHc7r2vI8BFbMLeLFuENaAIfEx7OM=
github.com/gophercloud/gophercloud v1.11.0/go.mod h1:aAVqcocTSXh2vYFZ1JTvx4EQmfgzxRcNupUfxZbBNDM=
github.com/gophercloud/gophercloud v1.12.0 h1:Jrz16vPAL93l80q16fp8NplrTCp93y7rZh2P3Q4Yq7g=
github.com/gophercloud/gophercloud v1.12.0/go.mod h1:aAVqcocTSXh2vYFZ1JTvx4EQmfgzxRcNupUfxZbBNDM=
github.com/gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWmnc=
github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
github.com/grafana/regexp v0.0.0-20221122212121-6b5c0a4cb7fd h1:PpuIBO5P3e9hpqBD0O/HjhShYuM6XE0i/lbE6J94kww=
github.com/grafana/regexp v0.0.0-20221122212121-6b5c0a4cb7fd/go.mod h1:M5qHK+eWfAv8VR/265dIuEpL3fNfeC21tXXp9itM24A=
github.com/hashicorp/consul/api v1.28.2 h1:mXfkRHrpHN4YY3RqL09nXU1eHKLNiuAN4kHvDQ16k/8=
github.com/hashicorp/consul/api v1.28.2/go.mod h1:KyzqzgMEya+IZPcD65YFoOVAgPpbfERu4I/tzG6/ueE=
github.com/grafana/regexp v0.0.0-20240518133315-a468a5bfb3bc h1:GN2Lv3MGO7AS6PrRoT6yV5+wkrOpcszoIsO4+4ds248=
github.com/grafana/regexp v0.0.0-20240518133315-a468a5bfb3bc/go.mod h1:+JKpmjMGhpgPL+rXZ5nsZieVzvarn86asRlBg4uNGnk=
github.com/hashicorp/consul/api v1.29.1 h1:UEwOjYJrd3lG1x5w7HxDRMGiAUPrb3f103EoeKuuEcc=
github.com/hashicorp/consul/api v1.29.1/go.mod h1:lumfRkY/coLuqMICkI7Fh3ylMG31mQSRZyef2c5YvJI=
github.com/hashicorp/cronexpr v1.1.2 h1:wG/ZYIKT+RT3QkOdgYc+xsKWVRgnxJ1OJtjjy84fJ9A=
github.com/hashicorp/cronexpr v1.1.2/go.mod h1:P4wA0KBl9C5q2hABiMO7cp6jcIg96CDh1Efb3g1PWA4=
github.com/hashicorp/errwrap v1.1.0 h1:OxrOeh75EUXMY8TBjag2fzXGZ40LB6IKw45YeGUDY2I=
github.com/hashicorp/errwrap v1.1.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
github.com/hashicorp/go-cleanhttp v0.5.2 h1:035FKYIWjmULyFRBKPs8TBQoi0x6d9G4xc9neXJWAZQ=
github.com/hashicorp/go-cleanhttp v0.5.2/go.mod h1:kO/YDlP8L1346E6Sodw+PrpBSV4/SoxCXGY6BqNFT48=
github.com/hashicorp/go-hclog v1.5.0 h1:bI2ocEMgcVlz55Oj1xZNBsVi900c7II+fWDyV9o+13c=
github.com/hashicorp/go-hclog v1.5.0/go.mod h1:W4Qnvbt70Wk/zYJryRzDRU/4r0kIg0PVHBcfoyhpF5M=
github.com/hashicorp/go-hclog v1.6.3 h1:Qr2kF+eVWjTiYmU7Y31tYlP1h0q/X3Nl3tPGdaB11/k=
github.com/hashicorp/go-hclog v1.6.3/go.mod h1:W4Qnvbt70Wk/zYJryRzDRU/4r0kIg0PVHBcfoyhpF5M=
github.com/hashicorp/go-immutable-radix v1.3.1 h1:DKHmCUm2hRBK510BaiZlwvpD40f8bJFeZnpfm2KLowc=
github.com/hashicorp/go-immutable-radix v1.3.1/go.mod h1:0y9vanUI8NX6FsYoO3zeMjhV/C5i9g4Q3DwcSNZ4P60=
github.com/hashicorp/go-multierror v1.1.1 h1:H5DkEtf6CXdFp0N0Em5UCwQpXMWke8IA0+lD48awMYo=
github.com/hashicorp/go-multierror v1.1.1/go.mod h1:iw975J/qwKPdAO1clOe2L8331t/9/fmwbPZ6JB6eMoM=
github.com/hashicorp/go-retryablehttp v0.7.4 h1:ZQgVdpTdAL7WpMIwLzCfbalOcSUdkDZnpUv3/+BxzFA=
github.com/hashicorp/go-retryablehttp v0.7.4/go.mod h1:Jy/gPYAdjqffZ/yFGCFV2doI5wjtH1ewM9u8iYVjtX8=
github.com/hashicorp/go-retryablehttp v0.7.7 h1:C8hUCYzor8PIfXHa4UrZkU4VvK8o9ISHxT2Q8+VepXU=
github.com/hashicorp/go-retryablehttp v0.7.7/go.mod h1:pkQpWZeYWskR+D1tR2O5OcBFOxfA7DoAO6xtkuQnHTk=
github.com/hashicorp/go-rootcerts v1.0.2 h1:jzhAVGtqPKbwpyCPELlgNWhE1znq+qwJtW5Oi2viEzc=
github.com/hashicorp/go-rootcerts v1.0.2/go.mod h1:pqUvnprVnM5bf7AOirdbb01K4ccR319Vf4pU3K5EGc8=
github.com/hashicorp/go-version v1.6.0 h1:feTTfFNnjP967rlCxM/I9g701jU+RN74YKx2mOkIeek=
github.com/hashicorp/go-version v1.6.0/go.mod h1:fltr4n8CU8Ke44wwGCBoEymUuxUHl09ZGVZPK5anwXA=
github.com/hashicorp/golang-lru v0.6.0 h1:uL2shRDx7RTrOrTCUZEGP/wJUFiUI8QT6E7z5o8jga4=
github.com/hashicorp/golang-lru v0.6.0/go.mod h1:iADmTwqILo4mZ8BN3D2Q6+9jd8WM5uGBxy+E8yxSoD4=
github.com/hashicorp/nomad/api v0.0.0-20240418183417-ea5f2f6748c7 h1:pjE59CS2C9Bg+Xby0ROrnZSSBWtKwx3Sf9gqsrvIFSA=
github.com/hashicorp/nomad/api v0.0.0-20240418183417-ea5f2f6748c7/go.mod h1:svtxn6QnrQ69P23VvIWMR34tg3vmwLz4UdUzm1dSCgE=
github.com/hashicorp/nomad/api v0.0.0-20240604134157-e73d8bb1140d h1:KHq+mAzWSkumj4PDoXc5VZbycPGcmYu8tohgVLQ6SIc=
github.com/hashicorp/nomad/api v0.0.0-20240604134157-e73d8bb1140d/go.mod h1:svtxn6QnrQ69P23VvIWMR34tg3vmwLz4UdUzm1dSCgE=
github.com/hashicorp/serf v0.10.1 h1:Z1H2J60yRKvfDYAOZLd2MU0ND4AH/WDz7xYHDWQsIPY=
github.com/hashicorp/serf v0.10.1/go.mod h1:yL2t6BqATOLGc5HF7qbFkTfXoPIY0WZdWHfEvMqbG+4=
github.com/hetznercloud/hcloud-go/v2 v2.7.2 h1:UlE7n1GQZacCfyjv9tDVUN7HZfOXErPIfM/M039u9A0=
github.com/hetznercloud/hcloud-go/v2 v2.7.2/go.mod h1:49tIV+pXRJTUC7fbFZ03s45LKqSQdOPP5y91eOnJo/k=
github.com/hetznercloud/hcloud-go/v2 v2.9.0 h1:s0N6R7Zoi2DPfMtUF5o9VeUBzTtHVY6MIkHOQnfu/AY=
github.com/hetznercloud/hcloud-go/v2 v2.9.0/go.mod h1:qtW/TuU7Bs16ibXl/ktJarWqU2LwHr7eGlwoilHxtgg=
github.com/imdario/mergo v0.3.16 h1:wwQJbIsHYGMUyLSPrEq1CT16AhnhNJQ51+4fdHUnCl4=
github.com/imdario/mergo v0.3.16/go.mod h1:WBLT9ZmE3lPoWsEzCh9LPo3TiwVN+ZKEjmz+hD27ysY=
github.com/influxdata/influxdb v1.11.5 h1:+em5VOl6lhAZubXj5o6SobCwvrRs3XDlBx/MUI4schI=
@ -208,14 +206,14 @@ github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=
github.com/linode/linodego v1.32.0 h1:OmZzB3iON6uu84VtLFf64uKmAQqJJarvmsVguroioPI=
github.com/linode/linodego v1.32.0/go.mod h1:y8GDP9uLVH4jTB9qyrgw79qfKdYJmNCGUOJmfuiOcmI=
github.com/linode/linodego v1.35.0 h1:rIhUeCHBLEDlkoRnOTwzSGzljQ3ksXwLxacmXnrV+Do=
github.com/linode/linodego v1.35.0/go.mod h1:JxuhOEAMfSxun6RU5/MgTKH2GGTmFrhKRj3wL1NFin0=
github.com/mailru/easyjson v0.7.7 h1:UGYAvKxe3sBsEDzO8ZeWOSlIQfWFlxbzLZe7hwFURr0=
github.com/mailru/easyjson v0.7.7/go.mod h1:xzfreul335JAWq5oZzymOObrkdz5UnU4kGfJJLY9Nlc=
github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
github.com/mattn/go-isatty v0.0.19 h1:JITubQf0MOLdlGRuRq+jtsDlekdYPia9ZFsB8h/APPA=
github.com/mattn/go-isatty v0.0.19/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
github.com/miekg/dns v1.1.59 h1:C9EXc/UToRwKLhK5wKU/I4QVsBUc8kE6MkHBkeypWZs=
github.com/miekg/dns v1.1.59/go.mod h1:nZpewl5p6IvctfgrckopVx2OlSEHPRO/U4SYkRklrEk=
@ -243,8 +241,8 @@ github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8
github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
github.com/opencontainers/image-spec v1.0.2 h1:9yCKha/T5XdGtO0q9Q9a6T5NUCsTn/DrBg0D7ufOcFM=
github.com/opencontainers/image-spec v1.0.2/go.mod h1:BtxoFyWECRxE4U/7sNtV5W15zMzWCbyJoFRP3s7yZA0=
github.com/ovh/go-ovh v1.4.3 h1:Gs3V823zwTFpzgGLZNI6ILS4rmxZgJwJCz54Er9LwD0=
github.com/ovh/go-ovh v1.4.3/go.mod h1:AkPXVtgwB6xlKblMjRKJJmjRp+ogrE7fz2lVgcQY8SY=
github.com/ovh/go-ovh v1.5.1 h1:P8O+7H+NQuFK9P/j4sFW5C0fvSS2DnHYGPwdVCp45wI=
github.com/ovh/go-ovh v1.5.1/go.mod h1:cTVDnl94z4tl8pP1uZ/8jlVxntjSIf09bNcQ5TJSC7c=
github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c h1:+mdjkGKdHQG3305AYmdv1U2eRNDiU2ErMBj1gwrq8eQ=
github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c/go.mod h1:7rwL4CYBLnjLxUqIJNnCWiEdr3bn6IUYi15bNlnbCCU=
github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
@ -279,12 +277,12 @@ github.com/prometheus/procfs v0.1.3/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4O
github.com/prometheus/procfs v0.6.0/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1xBZuNvfVA=
github.com/prometheus/procfs v0.15.1 h1:YagwOFzUgYfKKHX6Dr+sHT7km/hxC76UB0learggepc=
github.com/prometheus/procfs v0.15.1/go.mod h1:fB45yRUv8NstnjriLhBQLuOUt+WW4BsoGhij/e3PBqk=
github.com/prometheus/prometheus v0.52.1 h1:BrQ29YG+mzdGh8DgHPirHbeMGNqtL+INe0rqg7ttBJ4=
github.com/prometheus/prometheus v0.52.1/go.mod h1:3z74cVsmVH0iXOR5QBjB7Pa6A0KJeEAK5A6UsmAFb1g=
github.com/prometheus/prometheus v0.53.1-0.20240704074759-c137febfcf8c h1:6GEA48LnonkYZhQ654v7QTIP5uBTbCEVm49oIhif5lc=
github.com/prometheus/prometheus v0.53.1-0.20240704074759-c137febfcf8c/go.mod h1:FcNs5wa7M9yV8IlxlB/05s5oy9vULUIlu/tZsviRIT8=
github.com/rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjRBZyWFQ=
github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncjaFoBhdsK/akog=
github.com/scaleway/scaleway-sdk-go v1.0.0-beta.26 h1:F+GIVtGqCFxPxO46ujf8cEOP574MBoRm3gNbPXECbxs=
github.com/scaleway/scaleway-sdk-go v1.0.0-beta.26/go.mod h1:fCa7OJZ/9DRTnOKmxvT6pn+LPWUptQAmHF/SBJUGEcg=
github.com/scaleway/scaleway-sdk-go v1.0.0-beta.27 h1:yGAraK1uUjlhSXgNMIy8o/J4LFNcy7yeipBqt9N9mVg=
github.com/scaleway/scaleway-sdk-go v1.0.0-beta.27/go.mod h1:fCa7OJZ/9DRTnOKmxvT6pn+LPWUptQAmHF/SBJUGEcg=
github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
@ -306,20 +304,18 @@ github.com/xhit/go-str2duration/v2 v2.1.0 h1:lxklc02Drh6ynqX+DdPyp5pCKLUQpRT8bp8
github.com/xhit/go-str2duration/v2 v2.1.0/go.mod h1:ohY8p+0f07DiV6Em5LKB0s2YpLtXVyJfNt1+BlmyAsU=
github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
go.opentelemetry.io/collector/featuregate v1.5.0 h1:uK8qnYQKz1TMkK+FDTFsywg/EybW/gbnOUaPNUkRznM=
go.opentelemetry.io/collector/featuregate v1.5.0/go.mod h1:w7nUODKxEi3FLf1HslCiE6YWtMtOOrMnSwsDam8Mg9w=
go.opentelemetry.io/collector/pdata v1.5.0 h1:1fKTmUpr0xCOhP/B0VEvtz7bYPQ45luQ8XFyA07j8LE=
go.opentelemetry.io/collector/pdata v1.5.0/go.mod h1:TYj8aKRWZyT/KuKQXKyqSEvK/GV+slFaDMEI+Ke64Yw=
go.opentelemetry.io/collector/semconv v0.98.0 h1:zO4L4TmlxXoYu8UgPeYElGY19BW7wPjM+quL5CzoOoY=
go.opentelemetry.io/collector/semconv v0.98.0/go.mod h1:8ElcRZ8Cdw5JnvhTOQOdYizkJaQ10Z2fS+R6djOnj6A=
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.50.0 h1:cEPbyTSEHlQR89XVlyo78gqluF8Y3oMeBkXGWzQsfXY=
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.50.0/go.mod h1:DKdbWcT4GH1D0Y3Sqt/PFXt2naRKDWtU+eE6oLdFNA8=
go.opentelemetry.io/otel v1.25.0 h1:gldB5FfhRl7OJQbUHt/8s0a7cE8fbsPAtdpRaApKy4k=
go.opentelemetry.io/otel v1.25.0/go.mod h1:Wa2ds5NOXEMkCmUou1WA7ZBfLTHWIsp034OVD7AO+Vg=
go.opentelemetry.io/otel/metric v1.25.0 h1:LUKbS7ArpFL/I2jJHdJcqMGxkRdxpPHE0VU/D4NuEwA=
go.opentelemetry.io/otel/metric v1.25.0/go.mod h1:rkDLUSd2lC5lq2dFNrX9LGAbINP5B7WBkC78RXCpH5s=
go.opentelemetry.io/otel/trace v1.25.0 h1:tqukZGLwQYRIFtSQM2u2+yfMVTgGVeqRLPUYx1Dq6RM=
go.opentelemetry.io/otel/trace v1.25.0/go.mod h1:hCCs70XM/ljO+BeQkyFnbK28SBIJ/Emuha+ccrCRT7I=
go.opentelemetry.io/collector/pdata v1.8.0 h1:d/QQgZxB4Y+d3mqLVh2ozvzujUhloD3P/fk7X+In764=
go.opentelemetry.io/collector/pdata v1.8.0/go.mod h1:/W7clu0wFC4WSRp94Ucn6Vm36Wkrt+tmtlDb1aiNZCY=
go.opentelemetry.io/collector/semconv v0.101.0 h1:tOe9iTe9dDCnvz/bqgfNRr4w80kXG8505tQJ5h5v08Q=
go.opentelemetry.io/collector/semconv v0.101.0/go.mod h1:8ElcRZ8Cdw5JnvhTOQOdYizkJaQ10Z2fS+R6djOnj6A=
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.52.0 h1:9l89oX4ba9kHbBol3Xin3leYJ+252h0zszDtBwyKe2A=
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.52.0/go.mod h1:XLZfZboOJWHNKUv7eH0inh0E9VV6eWDFB/9yJyTLPp0=
go.opentelemetry.io/otel v1.27.0 h1:9BZoF3yMK/O1AafMiQTVu0YDj5Ea4hPhxCs7sGva+cg=
go.opentelemetry.io/otel v1.27.0/go.mod h1:DMpAK8fzYRzs+bi3rS5REupisuqTheUlSZJ1WnZaPAQ=
go.opentelemetry.io/otel/metric v1.27.0 h1:hvj3vdEKyeCi4YaYfNjv2NUje8FqKqUY8IlF0FxV/ik=
go.opentelemetry.io/otel/metric v1.27.0/go.mod h1:mVFgmRlhljgBiuk/MP/oKylr4hs85GZAylncepAX/ak=
go.opentelemetry.io/otel/trace v1.27.0 h1:IqYb813p7cmbHk0a5y6pD5JPakbVfftRXABGt5/Rscw=
go.opentelemetry.io/otel/trace v1.27.0/go.mod h1:6RiD1hkAprV4/q+yd2ln1HG9GoPx39SuvvstaLBl+l4=
go.uber.org/atomic v1.11.0 h1:ZvwS0R+56ePWxUNi+Atn9dWONBPp/AUETXlHW0DxSjE=
go.uber.org/atomic v1.11.0/go.mod h1:LUxbIzbOniOlMKjJjyPfpl4v+PKK2cNJn91OQbhoJI0=
go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
@ -336,8 +332,8 @@ golang.org/x/exp v0.0.0-20240119083558-1b970713d09a h1:Q8/wZp0KX97QFTc2ywcOE0YRj
golang.org/x/exp v0.0.0-20240119083558-1b970713d09a/go.mod h1:idGWGoKP1toJGkd5/ig9ZLuPcZBC3ewk7SzmH0uou08=
golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.17.0 h1:zY54UmvipHiNd+pm+m0x9KhZ9hl1/7QNMyxXbc6ICqA=
golang.org/x/mod v0.17.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
golang.org/x/mod v0.18.0 h1:5+9lSbEzPSdWkH32vYPBwEpX8KwDbM52Ud9xBUvNlb0=
golang.org/x/mod v0.18.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@ -397,21 +393,20 @@ golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGm
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d h1:vU5i/LfpvrRCpgM/VPfJLg5KjxD3E+hfT1SH+d9zLwg=
golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d/go.mod h1:aiJjzUbINMkxbQROHiO6hDPo2LHcIPhhQsa9DLh0yGk=
golang.org/x/tools v0.22.0 h1:gqSGLZqv+AI9lIQzniJ0nZDRG5GBPsSi+DRNHWNz6yA=
golang.org/x/tools v0.22.0/go.mod h1:aCwcsjqvq7Yqt6TNyX7QMU2enbQ/Gt0bo6krSeEri+c=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/appengine v1.6.6/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
google.golang.org/genproto v0.0.0-20240227224415-6ceb2ff114de h1:F6qOa9AZTYJXOUEr4jDysRDLrm4PHePlge4v4TGAlxY=
google.golang.org/genproto/googleapis/api v0.0.0-20240415180920-8c6c420018be h1:Zz7rLWqp0ApfsR/l7+zSHhY3PMiH2xqgxlfYfAfNpoU=
google.golang.org/genproto/googleapis/api v0.0.0-20240415180920-8c6c420018be/go.mod h1:dvdCTIoAGbkWbcIKBniID56/7XHTt6WfxXNMxuziJ+w=
google.golang.org/genproto/googleapis/rpc v0.0.0-20240415180920-8c6c420018be h1:LG9vZxsWGOmUKieR8wPAUR3u3MpnYFQZROPIMaXh7/A=
google.golang.org/genproto/googleapis/rpc v0.0.0-20240415180920-8c6c420018be/go.mod h1:WtryC6hu0hhx87FDGxWCDptyssuo68sk10vYjF+T9fY=
google.golang.org/grpc v1.63.2 h1:MUeiw1B2maTVZthpU5xvASfTh3LDbxHd6IJ6QQVU+xM=
google.golang.org/grpc v1.63.2/go.mod h1:WAX/8DgncnokcFUldAxq7GeB5DXHDbMF+lLvDomNkRA=
google.golang.org/genproto/googleapis/api v0.0.0-20240528184218-531527333157 h1:7whR9kGa5LUwFtpLm2ArCEejtnxlGeLbAyjFY8sGNFw=
google.golang.org/genproto/googleapis/api v0.0.0-20240528184218-531527333157/go.mod h1:99sLkeliLXfdj2J75X3Ho+rrVCaJze0uwN7zDDkjPVU=
google.golang.org/genproto/googleapis/rpc v0.0.0-20240528184218-531527333157 h1:Zy9XzmMEflZ/MAaA7vNcoebnRAld7FsPW1EeBB7V0m8=
google.golang.org/genproto/googleapis/rpc v0.0.0-20240528184218-531527333157/go.mod h1:EfXuqaE1J41VCDicxHzUDm+8rk+7ZdXzHV0IhO/I6s0=
google.golang.org/grpc v1.64.0 h1:KH3VH9y/MgNQg1dE7b3XfVK0GsPSIzJwdF617gUSbvY=
google.golang.org/grpc v1.64.0/go.mod h1:oxjF8E3FBnjp+/gVFYdWacaLDx9na1aqy9oovLpxQYg=
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=

@ -0,0 +1,201 @@
// Copyright 2024 Prometheus Team
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prompb
import (
"strings"
"github.com/prometheus/common/model"
"github.com/prometheus/prometheus/model/exemplar"
"github.com/prometheus/prometheus/model/histogram"
"github.com/prometheus/prometheus/model/labels"
)
// NOTE(bwplotka): This file's code is tested in /prompb/rwcommon.
// ToLabels return model labels.Labels from timeseries' remote labels.
func (m TimeSeries) ToLabels(b *labels.ScratchBuilder, _ []string) labels.Labels {
return labelProtosToLabels(b, m.GetLabels())
}
// ToLabels return model labels.Labels from timeseries' remote labels.
func (m ChunkedSeries) ToLabels(b *labels.ScratchBuilder, _ []string) labels.Labels {
return labelProtosToLabels(b, m.GetLabels())
}
func labelProtosToLabels(b *labels.ScratchBuilder, labelPairs []Label) labels.Labels {
b.Reset()
for _, l := range labelPairs {
b.Add(l.Name, l.Value)
}
b.Sort()
return b.Labels()
}
// FromLabels transforms labels into prompb labels. The buffer slice
// will be used to avoid allocations if it is big enough to store the labels.
func FromLabels(lbls labels.Labels, buf []Label) []Label {
result := buf[:0]
lbls.Range(func(l labels.Label) {
result = append(result, Label{
Name: l.Name,
Value: l.Value,
})
})
return result
}
// FromMetadataType transforms a Prometheus metricType into prompb metricType. Since the former is a string we need to transform it to an enum.
func FromMetadataType(t model.MetricType) MetricMetadata_MetricType {
mt := strings.ToUpper(string(t))
v, ok := MetricMetadata_MetricType_value[mt]
if !ok {
return MetricMetadata_UNKNOWN
}
return MetricMetadata_MetricType(v)
}
// IsFloatHistogram returns true if the histogram is float.
func (h Histogram) IsFloatHistogram() bool {
_, ok := h.GetCount().(*Histogram_CountFloat)
return ok
}
// ToIntHistogram returns integer Prometheus histogram from the remote implementation
// of integer histogram. If it's a float histogram, the method returns nil.
func (h Histogram) ToIntHistogram() *histogram.Histogram {
if h.IsFloatHistogram() {
return nil
}
return &histogram.Histogram{
CounterResetHint: histogram.CounterResetHint(h.ResetHint),
Schema: h.Schema,
ZeroThreshold: h.ZeroThreshold,
ZeroCount: h.GetZeroCountInt(),
Count: h.GetCountInt(),
Sum: h.Sum,
PositiveSpans: spansProtoToSpans(h.GetPositiveSpans()),
PositiveBuckets: h.GetPositiveDeltas(),
NegativeSpans: spansProtoToSpans(h.GetNegativeSpans()),
NegativeBuckets: h.GetNegativeDeltas(),
}
}
// ToFloatHistogram returns float Prometheus histogram from the remote implementation
// of float histogram. If the underlying implementation is an integer histogram, a
// conversion is performed.
func (h Histogram) ToFloatHistogram() *histogram.FloatHistogram {
if h.IsFloatHistogram() {
return &histogram.FloatHistogram{
CounterResetHint: histogram.CounterResetHint(h.ResetHint),
Schema: h.Schema,
ZeroThreshold: h.ZeroThreshold,
ZeroCount: h.GetZeroCountFloat(),
Count: h.GetCountFloat(),
Sum: h.Sum,
PositiveSpans: spansProtoToSpans(h.GetPositiveSpans()),
PositiveBuckets: h.GetPositiveCounts(),
NegativeSpans: spansProtoToSpans(h.GetNegativeSpans()),
NegativeBuckets: h.GetNegativeCounts(),
}
}
// Conversion from integer histogram.
return &histogram.FloatHistogram{
CounterResetHint: histogram.CounterResetHint(h.ResetHint),
Schema: h.Schema,
ZeroThreshold: h.ZeroThreshold,
ZeroCount: float64(h.GetZeroCountInt()),
Count: float64(h.GetCountInt()),
Sum: h.Sum,
PositiveSpans: spansProtoToSpans(h.GetPositiveSpans()),
PositiveBuckets: deltasToCounts(h.GetPositiveDeltas()),
NegativeSpans: spansProtoToSpans(h.GetNegativeSpans()),
NegativeBuckets: deltasToCounts(h.GetNegativeDeltas()),
}
}
func spansProtoToSpans(s []BucketSpan) []histogram.Span {
spans := make([]histogram.Span, len(s))
for i := 0; i < len(s); i++ {
spans[i] = histogram.Span{Offset: s[i].Offset, Length: s[i].Length}
}
return spans
}
func deltasToCounts(deltas []int64) []float64 {
counts := make([]float64, len(deltas))
var cur float64
for i, d := range deltas {
cur += float64(d)
counts[i] = cur
}
return counts
}
// FromIntHistogram returns remote Histogram from the integer Histogram.
func FromIntHistogram(timestamp int64, h *histogram.Histogram) Histogram {
return Histogram{
Count: &Histogram_CountInt{CountInt: h.Count},
Sum: h.Sum,
Schema: h.Schema,
ZeroThreshold: h.ZeroThreshold,
ZeroCount: &Histogram_ZeroCountInt{ZeroCountInt: h.ZeroCount},
NegativeSpans: spansToSpansProto(h.NegativeSpans),
NegativeDeltas: h.NegativeBuckets,
PositiveSpans: spansToSpansProto(h.PositiveSpans),
PositiveDeltas: h.PositiveBuckets,
ResetHint: Histogram_ResetHint(h.CounterResetHint),
Timestamp: timestamp,
}
}
// FromFloatHistogram returns remote Histogram from the float Histogram.
func FromFloatHistogram(timestamp int64, fh *histogram.FloatHistogram) Histogram {
return Histogram{
Count: &Histogram_CountFloat{CountFloat: fh.Count},
Sum: fh.Sum,
Schema: fh.Schema,
ZeroThreshold: fh.ZeroThreshold,
ZeroCount: &Histogram_ZeroCountFloat{ZeroCountFloat: fh.ZeroCount},
NegativeSpans: spansToSpansProto(fh.NegativeSpans),
NegativeCounts: fh.NegativeBuckets,
PositiveSpans: spansToSpansProto(fh.PositiveSpans),
PositiveCounts: fh.PositiveBuckets,
ResetHint: Histogram_ResetHint(fh.CounterResetHint),
Timestamp: timestamp,
}
}
func spansToSpansProto(s []histogram.Span) []BucketSpan {
spans := make([]BucketSpan, len(s))
for i := 0; i < len(s); i++ {
spans[i] = BucketSpan{Offset: s[i].Offset, Length: s[i].Length}
}
return spans
}
// ToExemplar converts remote exemplar to model exemplar.
func (m Exemplar) ToExemplar(b *labels.ScratchBuilder, _ []string) exemplar.Exemplar {
timestamp := m.Timestamp
return exemplar.Exemplar{
Labels: labelProtosToLabels(b, m.GetLabels()),
Value: m.Value,
Ts: timestamp,
HasTs: timestamp != 0,
}
}

@ -17,14 +17,6 @@ import (
"sync"
)
func (m Sample) T() int64 { return m.Timestamp }
func (m Sample) V() float64 { return m.Value }
func (h Histogram) IsFloatHistogram() bool {
_, ok := h.GetCount().(*Histogram_CountFloat)
return ok
}
func (r *ChunkedReadResponse) PooledMarshal(p *sync.Pool) ([]byte, error) {
size := r.Size()
data, ok := p.Get().(*[]byte)

@ -0,0 +1,213 @@
// Copyright 2024 Prometheus Team
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package writev2
import (
"github.com/prometheus/common/model"
"github.com/prometheus/prometheus/model/exemplar"
"github.com/prometheus/prometheus/model/histogram"
"github.com/prometheus/prometheus/model/labels"
"github.com/prometheus/prometheus/model/metadata"
)
// NOTE(bwplotka): This file's code is tested in /prompb/rwcommon.
// ToLabels return model labels.Labels from timeseries' remote labels.
func (m TimeSeries) ToLabels(b *labels.ScratchBuilder, symbols []string) labels.Labels {
return desymbolizeLabels(b, m.GetLabelsRefs(), symbols)
}
// ToMetadata return model metadata from timeseries' remote metadata.
func (m TimeSeries) ToMetadata(symbols []string) metadata.Metadata {
typ := model.MetricTypeUnknown
switch m.Metadata.Type {
case Metadata_METRIC_TYPE_COUNTER:
typ = model.MetricTypeCounter
case Metadata_METRIC_TYPE_GAUGE:
typ = model.MetricTypeGauge
case Metadata_METRIC_TYPE_HISTOGRAM:
typ = model.MetricTypeHistogram
case Metadata_METRIC_TYPE_GAUGEHISTOGRAM:
typ = model.MetricTypeGaugeHistogram
case Metadata_METRIC_TYPE_SUMMARY:
typ = model.MetricTypeSummary
case Metadata_METRIC_TYPE_INFO:
typ = model.MetricTypeInfo
case Metadata_METRIC_TYPE_STATESET:
typ = model.MetricTypeStateset
}
return metadata.Metadata{
Type: typ,
Unit: symbols[m.Metadata.UnitRef],
Help: symbols[m.Metadata.HelpRef],
}
}
// FromMetadataType transforms a Prometheus metricType into writev2 metricType.
// Since the former is a string we need to transform it to an enum.
func FromMetadataType(t model.MetricType) Metadata_MetricType {
switch t {
case model.MetricTypeCounter:
return Metadata_METRIC_TYPE_COUNTER
case model.MetricTypeGauge:
return Metadata_METRIC_TYPE_GAUGE
case model.MetricTypeHistogram:
return Metadata_METRIC_TYPE_HISTOGRAM
case model.MetricTypeGaugeHistogram:
return Metadata_METRIC_TYPE_GAUGEHISTOGRAM
case model.MetricTypeSummary:
return Metadata_METRIC_TYPE_SUMMARY
case model.MetricTypeInfo:
return Metadata_METRIC_TYPE_INFO
case model.MetricTypeStateset:
return Metadata_METRIC_TYPE_STATESET
default:
return Metadata_METRIC_TYPE_UNSPECIFIED
}
}
// IsFloatHistogram returns true if the histogram is float.
func (h Histogram) IsFloatHistogram() bool {
_, ok := h.GetCount().(*Histogram_CountFloat)
return ok
}
// ToIntHistogram returns integer Prometheus histogram from the remote implementation
// of integer histogram. If it's a float histogram, the method returns nil.
// TODO(bwplotka): Add support for incoming NHCB.
func (h Histogram) ToIntHistogram() *histogram.Histogram {
if h.IsFloatHistogram() {
return nil
}
return &histogram.Histogram{
CounterResetHint: histogram.CounterResetHint(h.ResetHint),
Schema: h.Schema,
ZeroThreshold: h.ZeroThreshold,
ZeroCount: h.GetZeroCountInt(),
Count: h.GetCountInt(),
Sum: h.Sum,
PositiveSpans: spansProtoToSpans(h.GetPositiveSpans()),
PositiveBuckets: h.GetPositiveDeltas(),
NegativeSpans: spansProtoToSpans(h.GetNegativeSpans()),
NegativeBuckets: h.GetNegativeDeltas(),
}
}
// ToFloatHistogram returns float Prometheus histogram from the remote implementation
// of float histogram. If the underlying implementation is an integer histogram, a
// conversion is performed.
// TODO(bwplotka): Add support for incoming NHCB.
func (h Histogram) ToFloatHistogram() *histogram.FloatHistogram {
if h.IsFloatHistogram() {
return &histogram.FloatHistogram{
CounterResetHint: histogram.CounterResetHint(h.ResetHint),
Schema: h.Schema,
ZeroThreshold: h.ZeroThreshold,
ZeroCount: h.GetZeroCountFloat(),
Count: h.GetCountFloat(),
Sum: h.Sum,
PositiveSpans: spansProtoToSpans(h.GetPositiveSpans()),
PositiveBuckets: h.GetPositiveCounts(),
NegativeSpans: spansProtoToSpans(h.GetNegativeSpans()),
NegativeBuckets: h.GetNegativeCounts(),
}
}
// Conversion from integer histogram.
return &histogram.FloatHistogram{
CounterResetHint: histogram.CounterResetHint(h.ResetHint),
Schema: h.Schema,
ZeroThreshold: h.ZeroThreshold,
ZeroCount: float64(h.GetZeroCountInt()),
Count: float64(h.GetCountInt()),
Sum: h.Sum,
PositiveSpans: spansProtoToSpans(h.GetPositiveSpans()),
PositiveBuckets: deltasToCounts(h.GetPositiveDeltas()),
NegativeSpans: spansProtoToSpans(h.GetNegativeSpans()),
NegativeBuckets: deltasToCounts(h.GetNegativeDeltas()),
}
}
func spansProtoToSpans(s []BucketSpan) []histogram.Span {
spans := make([]histogram.Span, len(s))
for i := 0; i < len(s); i++ {
spans[i] = histogram.Span{Offset: s[i].Offset, Length: s[i].Length}
}
return spans
}
func deltasToCounts(deltas []int64) []float64 {
counts := make([]float64, len(deltas))
var cur float64
for i, d := range deltas {
cur += float64(d)
counts[i] = cur
}
return counts
}
// FromIntHistogram returns remote Histogram from the integer Histogram.
func FromIntHistogram(timestamp int64, h *histogram.Histogram) Histogram {
return Histogram{
Count: &Histogram_CountInt{CountInt: h.Count},
Sum: h.Sum,
Schema: h.Schema,
ZeroThreshold: h.ZeroThreshold,
ZeroCount: &Histogram_ZeroCountInt{ZeroCountInt: h.ZeroCount},
NegativeSpans: spansToSpansProto(h.NegativeSpans),
NegativeDeltas: h.NegativeBuckets,
PositiveSpans: spansToSpansProto(h.PositiveSpans),
PositiveDeltas: h.PositiveBuckets,
ResetHint: Histogram_ResetHint(h.CounterResetHint),
Timestamp: timestamp,
}
}
// FromFloatHistogram returns remote Histogram from the float Histogram.
func FromFloatHistogram(timestamp int64, fh *histogram.FloatHistogram) Histogram {
return Histogram{
Count: &Histogram_CountFloat{CountFloat: fh.Count},
Sum: fh.Sum,
Schema: fh.Schema,
ZeroThreshold: fh.ZeroThreshold,
ZeroCount: &Histogram_ZeroCountFloat{ZeroCountFloat: fh.ZeroCount},
NegativeSpans: spansToSpansProto(fh.NegativeSpans),
NegativeCounts: fh.NegativeBuckets,
PositiveSpans: spansToSpansProto(fh.PositiveSpans),
PositiveCounts: fh.PositiveBuckets,
ResetHint: Histogram_ResetHint(fh.CounterResetHint),
Timestamp: timestamp,
}
}
func spansToSpansProto(s []histogram.Span) []BucketSpan {
spans := make([]BucketSpan, len(s))
for i := 0; i < len(s); i++ {
spans[i] = BucketSpan{Offset: s[i].Offset, Length: s[i].Length}
}
return spans
}
func (m Exemplar) ToExemplar(b *labels.ScratchBuilder, symbols []string) exemplar.Exemplar {
timestamp := m.Timestamp
return exemplar.Exemplar{
Labels: desymbolizeLabels(b, m.LabelsRefs, symbols),
Value: m.Value,
Ts: timestamp,
HasTs: timestamp != 0,
}
}

@ -0,0 +1,165 @@
// Copyright 2024 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package writev2
import (
"slices"
)
func (m Sample) T() int64 { return m.Timestamp }
func (m Sample) V() float64 { return m.Value }
func (m *Request) OptimizedMarshal(dst []byte) ([]byte, error) {
siz := m.Size()
if cap(dst) < siz {
dst = make([]byte, siz)
}
n, err := m.OptimizedMarshalToSizedBuffer(dst[:siz])
if err != nil {
return nil, err
}
return dst[:n], nil
}
// OptimizedMarshalToSizedBuffer is mostly a copy of the generated MarshalToSizedBuffer,
// but calls OptimizedMarshalToSizedBuffer on the timeseries.
func (m *Request) OptimizedMarshalToSizedBuffer(dAtA []byte) (int, error) {
i := len(dAtA)
_ = i
var l int
_ = l
if m.XXX_unrecognized != nil {
i -= len(m.XXX_unrecognized)
copy(dAtA[i:], m.XXX_unrecognized)
}
if len(m.Timeseries) > 0 {
for iNdEx := len(m.Timeseries) - 1; iNdEx >= 0; iNdEx-- {
{
size, err := m.Timeseries[iNdEx].OptimizedMarshalToSizedBuffer(dAtA[:i])
if err != nil {
return 0, err
}
i -= size
i = encodeVarintTypes(dAtA, i, uint64(size))
}
i--
dAtA[i] = 0x2a
}
}
if len(m.Symbols) > 0 {
for iNdEx := len(m.Symbols) - 1; iNdEx >= 0; iNdEx-- {
i -= len(m.Symbols[iNdEx])
copy(dAtA[i:], m.Symbols[iNdEx])
i = encodeVarintTypes(dAtA, i, uint64(len(m.Symbols[iNdEx])))
i--
dAtA[i] = 0x22
}
}
return len(dAtA) - i, nil
}
// OptimizedMarshalToSizedBuffer is mostly a copy of the generated MarshalToSizedBuffer,
// but marshals m.LabelsRefs in place without extra allocations.
func (m *TimeSeries) OptimizedMarshalToSizedBuffer(dAtA []byte) (int, error) {
i := len(dAtA)
_ = i
var l int
_ = l
if m.XXX_unrecognized != nil {
i -= len(m.XXX_unrecognized)
copy(dAtA[i:], m.XXX_unrecognized)
}
if m.CreatedTimestamp != 0 {
i = encodeVarintTypes(dAtA, i, uint64(m.CreatedTimestamp))
i--
dAtA[i] = 0x30
}
{
size, err := m.Metadata.MarshalToSizedBuffer(dAtA[:i])
if err != nil {
return 0, err
}
i -= size
i = encodeVarintTypes(dAtA, i, uint64(size))
}
i--
dAtA[i] = 0x2a
if len(m.Histograms) > 0 {
for iNdEx := len(m.Histograms) - 1; iNdEx >= 0; iNdEx-- {
{
size, err := m.Histograms[iNdEx].MarshalToSizedBuffer(dAtA[:i])
if err != nil {
return 0, err
}
i -= size
i = encodeVarintTypes(dAtA, i, uint64(size))
}
i--
dAtA[i] = 0x1a
}
}
if len(m.Exemplars) > 0 {
for iNdEx := len(m.Exemplars) - 1; iNdEx >= 0; iNdEx-- {
{
size, err := m.Exemplars[iNdEx].MarshalToSizedBuffer(dAtA[:i])
if err != nil {
return 0, err
}
i -= size
i = encodeVarintTypes(dAtA, i, uint64(size))
}
i--
dAtA[i] = 0x22
}
}
if len(m.Samples) > 0 {
for iNdEx := len(m.Samples) - 1; iNdEx >= 0; iNdEx-- {
{
size, err := m.Samples[iNdEx].MarshalToSizedBuffer(dAtA[:i])
if err != nil {
return 0, err
}
i -= size
i = encodeVarintTypes(dAtA, i, uint64(size))
}
i--
dAtA[i] = 0x12
}
}
if len(m.LabelsRefs) > 0 {
// This is the trick: encode the varints in reverse order to make it easier
// to do it in place. Then reverse the whole thing.
var j10 int
start := i
for _, num := range m.LabelsRefs {
for num >= 1<<7 {
dAtA[i-1] = uint8(uint64(num)&0x7f | 0x80)
num >>= 7
i--
j10++
}
dAtA[i-1] = uint8(num)
i--
j10++
}
slices.Reverse(dAtA[i:start])
// --- end of trick
i = encodeVarintTypes(dAtA, i, uint64(j10))
i--
dAtA[i] = 0xa
}
return len(dAtA) - i, nil
}

@ -0,0 +1,97 @@
// Copyright 2023 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package writev2
import (
"testing"
"github.com/stretchr/testify/require"
)
func TestOptimizedMarshal(t *testing.T) {
for _, tt := range []struct {
name string
m *Request
}{
{
name: "empty",
m: &Request{},
},
{
name: "simple",
m: &Request{
Timeseries: []TimeSeries{
{
LabelsRefs: []uint32{
0, 1,
2, 3,
4, 5,
6, 7,
8, 9,
10, 11,
12, 13,
14, 15,
},
Samples: []Sample{{Value: 1, Timestamp: 0}},
Exemplars: []Exemplar{{LabelsRefs: []uint32{0, 1}, Value: 1, Timestamp: 0}},
Histograms: nil,
},
{
LabelsRefs: []uint32{
0, 1,
2, 3,
4, 5,
6, 7,
8, 9,
10, 11,
12, 13,
14, 15,
},
Samples: []Sample{{Value: 2, Timestamp: 1}},
Exemplars: []Exemplar{{LabelsRefs: []uint32{0, 1}, Value: 2, Timestamp: 1}},
Histograms: nil,
},
},
Symbols: []string{
"a", "b",
"c", "d",
"e", "f",
"g", "h",
"i", "j",
"k", "l",
"m", "n",
"o", "p",
},
},
},
} {
t.Run(tt.name, func(t *testing.T) {
// Keep the slice allocated to mimic what std Marshal
// would give to sized Marshal.
got := make([]byte, 0)
// Should be the same as the standard marshal.
expected, err := tt.m.Marshal()
require.NoError(t, err)
got, err = tt.m.OptimizedMarshal(got)
require.NoError(t, err)
require.Equal(t, expected, got)
// Unmarshal should work too.
m := &Request{}
require.NoError(t, m.Unmarshal(got))
require.Equal(t, tt.m, m)
})
}
}

@ -0,0 +1,83 @@
// Copyright 2024 Prometheus Team
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package writev2
import "github.com/prometheus/prometheus/model/labels"
// SymbolsTable implements table for easy symbol use.
type SymbolsTable struct {
strings []string
symbolsMap map[string]uint32
}
// NewSymbolTable returns a symbol table.
func NewSymbolTable() SymbolsTable {
return SymbolsTable{
// Empty string is required as a first element.
symbolsMap: map[string]uint32{"": 0},
strings: []string{""},
}
}
// Symbolize adds (if not added before) a string to the symbols table,
// while returning its reference number.
func (t *SymbolsTable) Symbolize(str string) uint32 {
if ref, ok := t.symbolsMap[str]; ok {
return ref
}
ref := uint32(len(t.strings))
t.strings = append(t.strings, str)
t.symbolsMap[str] = ref
return ref
}
// SymbolizeLabels symbolize Prometheus labels.
func (t *SymbolsTable) SymbolizeLabels(lbls labels.Labels, buf []uint32) []uint32 {
result := buf[:0]
lbls.Range(func(l labels.Label) {
off := t.Symbolize(l.Name)
result = append(result, off)
off = t.Symbolize(l.Value)
result = append(result, off)
})
return result
}
// Symbols returns computes symbols table to put in e.g. Request.Symbols.
// As per spec, order does not matter.
func (t *SymbolsTable) Symbols() []string {
return t.strings
}
// Reset clears symbols table.
func (t *SymbolsTable) Reset() {
// NOTE: Make sure to keep empty symbol.
t.strings = t.strings[:1]
for k := range t.symbolsMap {
if k == "" {
continue
}
delete(t.symbolsMap, k)
}
}
// desymbolizeLabels decodes label references, with given symbols to labels.
func desymbolizeLabels(b *labels.ScratchBuilder, labelRefs []uint32, symbols []string) labels.Labels {
b.Reset()
for i := 0; i < len(labelRefs); i += 2 {
b.Add(symbols[labelRefs[i]], symbols[labelRefs[i+1]])
}
b.Sort()
return b.Labels()
}

@ -0,0 +1,60 @@
// Copyright 2024 Prometheus Team
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package writev2
import (
"testing"
"github.com/stretchr/testify/require"
"github.com/prometheus/prometheus/model/labels"
)
func TestSymbolsTable(t *testing.T) {
s := NewSymbolTable()
require.Equal(t, []string{""}, s.Symbols(), "required empty reference does not exist")
require.Equal(t, uint32(0), s.Symbolize(""))
require.Equal(t, []string{""}, s.Symbols())
require.Equal(t, uint32(1), s.Symbolize("abc"))
require.Equal(t, []string{"", "abc"}, s.Symbols())
require.Equal(t, uint32(2), s.Symbolize("__name__"))
require.Equal(t, []string{"", "abc", "__name__"}, s.Symbols())
require.Equal(t, uint32(3), s.Symbolize("foo"))
require.Equal(t, []string{"", "abc", "__name__", "foo"}, s.Symbols())
s.Reset()
require.Equal(t, []string{""}, s.Symbols(), "required empty reference does not exist")
require.Equal(t, uint32(0), s.Symbolize(""))
require.Equal(t, uint32(1), s.Symbolize("__name__"))
require.Equal(t, []string{"", "__name__"}, s.Symbols())
require.Equal(t, uint32(2), s.Symbolize("abc"))
require.Equal(t, []string{"", "__name__", "abc"}, s.Symbols())
ls := labels.FromStrings("__name__", "qwer", "zxcv", "1234")
encoded := s.SymbolizeLabels(ls, nil)
require.Equal(t, []uint32{1, 3, 4, 5}, encoded)
b := labels.NewScratchBuilder(len(encoded))
decoded := desymbolizeLabels(&b, encoded, s.Symbols())
require.Equal(t, ls, decoded)
// Different buf.
ls = labels.FromStrings("__name__", "qwer", "zxcv2222", "1234")
encoded = s.SymbolizeLabels(ls, []uint32{1, 3, 4, 5})
require.Equal(t, []uint32{1, 3, 6, 5}, encoded)
}

File diff suppressed because it is too large Load Diff

@ -0,0 +1,260 @@
// Copyright 2024 Prometheus Team
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// NOTE: This file is also available on https://buf.build/prometheus/prometheus/docs/main:io.prometheus.write.v2
syntax = "proto3";
package io.prometheus.write.v2;
option go_package = "writev2";
import "gogoproto/gogo.proto";
// Request represents a request to write the given timeseries to a remote destination.
// This message was introduced in the Remote Write 2.0 specification:
// https://prometheus.io/docs/concepts/remote_write_spec_2_0/
//
// The canonical Content-Type request header value for this message is
// "application/x-protobuf;proto=io.prometheus.write.v2.Request"
//
// NOTE: gogoproto options might change in future for this file, they
// are not part of the spec proto (they only modify the generated Go code, not
// the serialized message). See: https://github.com/prometheus/prometheus/issues/11908
message Request {
// Since Request supersedes 1.0 spec's prometheus.WriteRequest, we reserve the top-down message
// for the deterministic interop between those two, see types_test.go for details.
// Generally it's not needed, because Receivers must use the Content-Type header, but we want to
// be sympathetic to adopters with mistaken implementations and have deterministic error (empty
// message if you use the wrong proto schema).
reserved 1 to 3;
// symbols contains a de-duplicated array of string elements used for various
// items in a Request message, like labels and metadata items. For the sender's convenience
// around empty values for optional fields like unit_ref, symbols array MUST start with
// empty string.
//
// To decode each of the symbolized strings, referenced, by "ref(s)" suffix, you
// need to lookup the actual string by index from symbols array. The order of
// strings is up to the sender. The receiver should not assume any particular encoding.
repeated string symbols = 4;
// timeseries represents an array of distinct series with 0 or more samples.
repeated TimeSeries timeseries = 5 [(gogoproto.nullable) = false];
}
// TimeSeries represents a single series.
message TimeSeries {
// labels_refs is a list of label name-value pair references, encoded
// as indices to the Request.symbols array. This list's length is always
// a multiple of two, and the underlying labels should be sorted lexicographically.
//
// Note that there might be multiple TimeSeries objects in the same
// Requests with the same labels e.g. for different exemplars, metadata
// or created timestamp.
repeated uint32 labels_refs = 1;
// Timeseries messages can either specify samples or (native) histogram samples
// (histogram field), but not both. For a typical sender (real-time metric
// streaming), in healthy cases, there will be only one sample or histogram.
//
// Samples and histograms are sorted by timestamp (older first).
repeated Sample samples = 2 [(gogoproto.nullable) = false];
repeated Histogram histograms = 3 [(gogoproto.nullable) = false];
// exemplars represents an optional set of exemplars attached to this series' samples.
repeated Exemplar exemplars = 4 [(gogoproto.nullable) = false];
// metadata represents the metadata associated with the given series' samples.
Metadata metadata = 5 [(gogoproto.nullable) = false];
// created_timestamp represents an optional created timestamp associated with
// this series' samples in ms format, typically for counter or histogram type
// metrics. Created timestamp represents the time when the counter started
// counting (sometimes referred to as start timestamp), which can increase
// the accuracy of query results.
//
// Note that some receivers might require this and in return fail to
// ingest such samples within the Request.
//
// For Go, see github.com/prometheus/prometheus/model/timestamp/timestamp.go
// for conversion from/to time.Time to Prometheus timestamp.
//
// Note that the "optional" keyword is omitted due to
// https://cloud.google.com/apis/design/design_patterns.md#optional_primitive_fields
// Zero value means value not set. If you need to use exactly zero value for
// the timestamp, use 1 millisecond before or after.
int64 created_timestamp = 6;
}
// Exemplar is an additional information attached to some series' samples.
// It is typically used to attach an example trace or request ID associated with
// the metric changes.
message Exemplar {
// labels_refs is an optional list of label name-value pair references, encoded
// as indices to the Request.symbols array. This list's len is always
// a multiple of 2, and the underlying labels should be sorted lexicographically.
// If the exemplar references a trace it should use the `trace_id` label name, as a best practice.
repeated uint32 labels_refs = 1;
// value represents an exact example value. This can be useful when the exemplar
// is attached to a histogram, which only gives an estimated value through buckets.
double value = 2;
// timestamp represents an optional timestamp of the sample in ms.
//
// For Go, see github.com/prometheus/prometheus/model/timestamp/timestamp.go
// for conversion from/to time.Time to Prometheus timestamp.
//
// Note that the "optional" keyword is omitted due to
// https://cloud.google.com/apis/design/design_patterns.md#optional_primitive_fields
// Zero value means value not set. If you need to use exactly zero value for
// the timestamp, use 1 millisecond before or after.
int64 timestamp = 3;
}
// Sample represents series sample.
message Sample {
// value of the sample.
double value = 1;
// timestamp represents timestamp of the sample in ms.
//
// For Go, see github.com/prometheus/prometheus/model/timestamp/timestamp.go
// for conversion from/to time.Time to Prometheus timestamp.
int64 timestamp = 2;
}
// Metadata represents the metadata associated with the given series' samples.
message Metadata {
enum MetricType {
METRIC_TYPE_UNSPECIFIED = 0;
METRIC_TYPE_COUNTER = 1;
METRIC_TYPE_GAUGE = 2;
METRIC_TYPE_HISTOGRAM = 3;
METRIC_TYPE_GAUGEHISTOGRAM = 4;
METRIC_TYPE_SUMMARY = 5;
METRIC_TYPE_INFO = 6;
METRIC_TYPE_STATESET = 7;
}
MetricType type = 1;
// help_ref is a reference to the Request.symbols array representing help
// text for the metric. Help is optional, reference should point to an empty string in
// such a case.
uint32 help_ref = 3;
// unit_ref is a reference to the Request.symbols array representing a unit
// for the metric. Unit is optional, reference should point to an empty string in
// such a case.
uint32 unit_ref = 4;
}
// A native histogram, also known as a sparse histogram.
// Original design doc:
// https://docs.google.com/document/d/1cLNv3aufPZb3fNfaJgdaRBZsInZKKIHo9E6HinJVbpM/edit
// The appendix of this design doc also explains the concept of float
// histograms. This Histogram message can represent both, the usual
// integer histogram as well as a float histogram.
message Histogram {
enum ResetHint {
RESET_HINT_UNSPECIFIED = 0; // Need to test for a counter reset explicitly.
RESET_HINT_YES = 1; // This is the 1st histogram after a counter reset.
RESET_HINT_NO = 2; // There was no counter reset between this and the previous Histogram.
RESET_HINT_GAUGE = 3; // This is a gauge histogram where counter resets don't happen.
}
oneof count { // Count of observations in the histogram.
uint64 count_int = 1;
double count_float = 2;
}
double sum = 3; // Sum of observations in the histogram.
// The schema defines the bucket schema. Currently, valid numbers
// are -53 and numbers in range of -4 <= n <= 8. More valid numbers might be
// added in future for new bucketing layouts.
//
// The schema equal to -53 means custom buckets. See
// custom_values field description for more details.
//
// Values between -4 and 8 represent base-2 bucket schema, where 1
// is a bucket boundary in each case, and then each power of two is
// divided into 2^n (n is schema value) logarithmic buckets. Or in other words,
// each bucket boundary is the previous boundary times 2^(2^-n).
sint32 schema = 4;
double zero_threshold = 5; // Breadth of the zero bucket.
oneof zero_count { // Count in zero bucket.
uint64 zero_count_int = 6;
double zero_count_float = 7;
}
// Negative Buckets.
repeated BucketSpan negative_spans = 8 [(gogoproto.nullable) = false];
// Use either "negative_deltas" or "negative_counts", the former for
// regular histograms with integer counts, the latter for
// float histograms.
repeated sint64 negative_deltas = 9; // Count delta of each bucket compared to previous one (or to zero for 1st bucket).
repeated double negative_counts = 10; // Absolute count of each bucket.
// Positive Buckets.
//
// In case of custom buckets (-53 schema value) the positive buckets are interpreted as follows:
// * The span offset+length points to an the index of the custom_values array
// or +Inf if pointing to the len of the array.
// * The counts and deltas have the same meaning as for exponential histograms.
repeated BucketSpan positive_spans = 11 [(gogoproto.nullable) = false];
// Use either "positive_deltas" or "positive_counts", the former for
// regular histograms with integer counts, the latter for
// float histograms.
repeated sint64 positive_deltas = 12; // Count delta of each bucket compared to previous one (or to zero for 1st bucket).
repeated double positive_counts = 13; // Absolute count of each bucket.
ResetHint reset_hint = 14;
// timestamp represents timestamp of the sample in ms.
//
// For Go, see github.com/prometheus/prometheus/model/timestamp/timestamp.go
// for conversion from/to time.Time to Prometheus timestamp.
int64 timestamp = 15;
// custom_values is an additional field used by non-exponential bucketing layouts.
//
// For custom buckets (-53 schema value) custom_values specify monotonically
// increasing upper inclusive boundaries for the bucket counts with arbitrary
// widths for this histogram. In other words, custom_values represents custom,
// explicit bucketing that could have been converted from the classic histograms.
//
// Those bounds are then referenced by spans in positive_spans with corresponding positive
// counts of deltas (refer to positive_spans for more details). This way we can
// have encode sparse histograms with custom bucketing (many buckets are often
// not used).
//
// Note that for custom bounds, even negative observations are placed in the positive
// counts to simplify the implementation and avoid ambiguity of where to place
// an underflow bucket, e.g. (-2, 1]. Therefore negative buckets and
// the zero bucket are unused, if the schema indicates custom bucketing.
//
// For each upper boundary the previous boundary represent the lower exclusive
// boundary for that bucket. The first element is the upper inclusive boundary
// for the first bucket, which implicitly has a lower inclusive bound of -Inf.
// This is similar to "le" label semantics on classic histograms. You may add a
// bucket with an upper bound of 0 to make sure that you really have no negative
// observations, but in practice, native histogram rendering will show both with
// or without first upper boundary 0 and no negative counts as the same case.
//
// The last element is not only the upper inclusive bound of the last regular
// bucket, but implicitly the lower exclusive bound of the +Inf bucket.
repeated double custom_values = 16;
}
// A BucketSpan defines a number of consecutive buckets with their
// offset. Logically, it would be more straightforward to include the
// bucket counts in the Span. However, the protobuf representation is
// more compact in the way the data is structured here (with all the
// buckets in a single array separate from the Spans).
message BucketSpan {
sint32 offset = 1; // Gap to previous span, or starting point for 1st span (which can be negative).
uint32 length = 2; // Length of consecutive buckets.
}

@ -0,0 +1,97 @@
// Copyright 2024 Prometheus Team
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package writev2
import (
"testing"
"time"
"github.com/gogo/protobuf/proto"
"github.com/stretchr/testify/require"
"github.com/prometheus/prometheus/prompb"
)
func TestInteropV2UnmarshalWithV1_DeterministicEmpty(t *testing.T) {
expectedV1Empty := &prompb.WriteRequest{}
for _, tc := range []struct{ incoming *Request }{
{
incoming: &Request{}, // Technically wrong, should be at least empty string in symbol.
},
{
incoming: &Request{
Symbols: []string{""},
}, // NOTE: Without reserved fields, failed with "corrupted" ghost TimeSeries element.
},
{
incoming: &Request{
Symbols: []string{"", "__name__", "metric1"},
Timeseries: []TimeSeries{
{LabelsRefs: []uint32{1, 2}},
{Samples: []Sample{{Value: 21.4, Timestamp: time.Now().UnixMilli()}}},
}, // NOTE: Without reserved fields, proto: illegal wireType 7
},
},
} {
t.Run("", func(t *testing.T) {
in, err := proto.Marshal(tc.incoming)
require.NoError(t, err)
// Test accidental unmarshal of v2 payload with v1 proto.
out := &prompb.WriteRequest{}
require.NoError(t, proto.Unmarshal(in, out))
// Drop unknowns, we expect them when incoming payload had some fields.
// This field & method will be likely gone after gogo removal.
out.XXX_unrecognized = nil // NOTE: out.XXX_DiscardUnknown() does not work with nullables.
require.Equal(t, expectedV1Empty, out)
})
}
}
func TestInteropV1UnmarshalWithV2_DeterministicEmpty(t *testing.T) {
expectedV2Empty := &Request{}
for _, tc := range []struct{ incoming *prompb.WriteRequest }{
{
incoming: &prompb.WriteRequest{},
},
{
incoming: &prompb.WriteRequest{
Timeseries: []prompb.TimeSeries{
{
Labels: []prompb.Label{{Name: "__name__", Value: "metric1"}},
Samples: []prompb.Sample{{Value: 21.4, Timestamp: time.Now().UnixMilli()}},
},
},
},
// NOTE: Without reserved fields, results in corrupted v2.Request.Symbols.
},
} {
t.Run("", func(t *testing.T) {
in, err := proto.Marshal(tc.incoming)
require.NoError(t, err)
// Test accidental unmarshal of v1 payload with v2 proto.
out := &Request{}
require.NoError(t, proto.Unmarshal(in, out))
// Drop unknowns, we expect them when incoming payload had some fields.
// This field & method will be likely gone after gogo removal.
out.XXX_unrecognized = nil // NOTE: out.XXX_DiscardUnknown() does not work with nullables.
require.Equal(t, expectedV2Empty, out)
})
}
}

@ -0,0 +1,282 @@
// Copyright 2024 Prometheus Team
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package rwcommon
import (
"testing"
"github.com/prometheus/common/model"
"github.com/stretchr/testify/require"
"github.com/prometheus/prometheus/model/histogram"
"github.com/prometheus/prometheus/model/labels"
"github.com/prometheus/prometheus/model/metadata"
"github.com/prometheus/prometheus/prompb"
writev2 "github.com/prometheus/prometheus/prompb/io/prometheus/write/v2"
)
func TestToLabels(t *testing.T) {
expected := labels.FromStrings("__name__", "metric1", "foo", "bar")
t.Run("v1", func(t *testing.T) {
ts := prompb.TimeSeries{Labels: []prompb.Label{{Name: "__name__", Value: "metric1"}, {Name: "foo", Value: "bar"}}}
b := labels.NewScratchBuilder(2)
require.Equal(t, expected, ts.ToLabels(&b, nil))
require.Equal(t, ts.Labels, prompb.FromLabels(expected, nil))
require.Equal(t, ts.Labels, prompb.FromLabels(expected, ts.Labels))
})
t.Run("v2", func(t *testing.T) {
v2Symbols := []string{"", "__name__", "metric1", "foo", "bar"}
ts := writev2.TimeSeries{LabelsRefs: []uint32{1, 2, 3, 4}}
b := labels.NewScratchBuilder(2)
require.Equal(t, expected, ts.ToLabels(&b, v2Symbols))
// No need for FromLabels in our prod code as we use symbol table to do so.
})
}
func TestFromMetadataType(t *testing.T) {
for _, tc := range []struct {
desc string
input model.MetricType
expectedV1 prompb.MetricMetadata_MetricType
expectedV2 writev2.Metadata_MetricType
}{
{
desc: "with a single-word metric",
input: model.MetricTypeCounter,
expectedV1: prompb.MetricMetadata_COUNTER,
expectedV2: writev2.Metadata_METRIC_TYPE_COUNTER,
},
{
desc: "with a two-word metric",
input: model.MetricTypeStateset,
expectedV1: prompb.MetricMetadata_STATESET,
expectedV2: writev2.Metadata_METRIC_TYPE_STATESET,
},
{
desc: "with an unknown metric",
input: "not-known",
expectedV1: prompb.MetricMetadata_UNKNOWN,
expectedV2: writev2.Metadata_METRIC_TYPE_UNSPECIFIED,
},
} {
t.Run(tc.desc, func(t *testing.T) {
t.Run("v1", func(t *testing.T) {
require.Equal(t, tc.expectedV1, prompb.FromMetadataType(tc.input))
})
t.Run("v2", func(t *testing.T) {
require.Equal(t, tc.expectedV2, writev2.FromMetadataType(tc.input))
})
})
}
}
func TestToMetadata(t *testing.T) {
sym := writev2.NewSymbolTable()
for _, tc := range []struct {
input writev2.Metadata
expected metadata.Metadata
}{
{
input: writev2.Metadata{},
expected: metadata.Metadata{
Type: model.MetricTypeUnknown,
},
},
{
input: writev2.Metadata{
Type: 12414, // Unknown.
},
expected: metadata.Metadata{
Type: model.MetricTypeUnknown,
},
},
{
input: writev2.Metadata{
Type: writev2.Metadata_METRIC_TYPE_COUNTER,
HelpRef: sym.Symbolize("help1"),
UnitRef: sym.Symbolize("unit1"),
},
expected: metadata.Metadata{
Type: model.MetricTypeCounter,
Help: "help1",
Unit: "unit1",
},
},
{
input: writev2.Metadata{
Type: writev2.Metadata_METRIC_TYPE_STATESET,
HelpRef: sym.Symbolize("help2"),
},
expected: metadata.Metadata{
Type: model.MetricTypeStateset,
Help: "help2",
},
},
} {
t.Run("", func(t *testing.T) {
ts := writev2.TimeSeries{Metadata: tc.input}
require.Equal(t, tc.expected, ts.ToMetadata(sym.Symbols()))
})
}
}
func TestToHistogram_Empty(t *testing.T) {
t.Run("v1", func(t *testing.T) {
require.NotNilf(t, prompb.Histogram{}.ToIntHistogram(), "")
require.NotNilf(t, prompb.Histogram{}.ToFloatHistogram(), "")
})
t.Run("v2", func(t *testing.T) {
require.NotNilf(t, writev2.Histogram{}.ToIntHistogram(), "")
require.NotNilf(t, writev2.Histogram{}.ToFloatHistogram(), "")
})
}
func testIntHistogram() histogram.Histogram {
return histogram.Histogram{
CounterResetHint: histogram.GaugeType,
Schema: 0,
Count: 19,
Sum: 2.7,
ZeroThreshold: 1e-128,
PositiveSpans: []histogram.Span{
{Offset: 0, Length: 4},
{Offset: 0, Length: 0},
{Offset: 0, Length: 3},
},
PositiveBuckets: []int64{1, 2, -2, 1, -1, 0, 0},
NegativeSpans: []histogram.Span{
{Offset: 0, Length: 5},
{Offset: 1, Length: 0},
{Offset: 0, Length: 1},
},
NegativeBuckets: []int64{1, 2, -2, 1, -1, 0},
}
}
func testFloatHistogram() histogram.FloatHistogram {
return histogram.FloatHistogram{
CounterResetHint: histogram.GaugeType,
Schema: 0,
Count: 19,
Sum: 2.7,
ZeroThreshold: 1e-128,
PositiveSpans: []histogram.Span{
{Offset: 0, Length: 4},
{Offset: 0, Length: 0},
{Offset: 0, Length: 3},
},
PositiveBuckets: []float64{1, 3, 1, 2, 1, 1, 1},
NegativeSpans: []histogram.Span{
{Offset: 0, Length: 5},
{Offset: 1, Length: 0},
{Offset: 0, Length: 1},
},
NegativeBuckets: []float64{1, 3, 1, 2, 1, 1},
}
}
func TestFromIntToFloatOrIntHistogram(t *testing.T) {
testIntHist := testIntHistogram()
testFloatHist := testFloatHistogram()
t.Run("v1", func(t *testing.T) {
h := prompb.FromIntHistogram(123, testIntHist.Copy())
require.False(t, h.IsFloatHistogram())
require.Equal(t, int64(123), h.Timestamp)
require.Equal(t, testIntHist, *h.ToIntHistogram())
require.Equal(t, testFloatHist, *h.ToFloatHistogram())
})
t.Run("v2", func(t *testing.T) {
h := writev2.FromIntHistogram(123, testIntHist.Copy())
require.False(t, h.IsFloatHistogram())
require.Equal(t, int64(123), h.Timestamp)
require.Equal(t, testIntHist, *h.ToIntHistogram())
require.Equal(t, testFloatHist, *h.ToFloatHistogram())
})
}
func TestFromFloatToFloatHistogram(t *testing.T) {
testFloatHist := testFloatHistogram()
t.Run("v1", func(t *testing.T) {
h := prompb.FromFloatHistogram(123, testFloatHist.Copy())
require.True(t, h.IsFloatHistogram())
require.Equal(t, int64(123), h.Timestamp)
require.Nil(t, h.ToIntHistogram())
require.Equal(t, testFloatHist, *h.ToFloatHistogram())
})
t.Run("v2", func(t *testing.T) {
h := writev2.FromFloatHistogram(123, testFloatHist.Copy())
require.True(t, h.IsFloatHistogram())
require.Equal(t, int64(123), h.Timestamp)
require.Nil(t, h.ToIntHistogram())
require.Equal(t, testFloatHist, *h.ToFloatHistogram())
})
}
func TestFromIntOrFloatHistogram_ResetHint(t *testing.T) {
for _, tc := range []struct {
input histogram.CounterResetHint
expectedV1 prompb.Histogram_ResetHint
expectedV2 writev2.Histogram_ResetHint
}{
{
input: histogram.UnknownCounterReset,
expectedV1: prompb.Histogram_UNKNOWN,
expectedV2: writev2.Histogram_RESET_HINT_UNSPECIFIED,
},
{
input: histogram.CounterReset,
expectedV1: prompb.Histogram_YES,
expectedV2: writev2.Histogram_RESET_HINT_YES,
},
{
input: histogram.NotCounterReset,
expectedV1: prompb.Histogram_NO,
expectedV2: writev2.Histogram_RESET_HINT_NO,
},
{
input: histogram.GaugeType,
expectedV1: prompb.Histogram_GAUGE,
expectedV2: writev2.Histogram_RESET_HINT_GAUGE,
},
} {
t.Run("", func(t *testing.T) {
t.Run("v1", func(t *testing.T) {
h := testIntHistogram()
h.CounterResetHint = tc.input
got := prompb.FromIntHistogram(1337, &h)
require.Equal(t, tc.expectedV1, got.GetResetHint())
fh := testFloatHistogram()
fh.CounterResetHint = tc.input
got2 := prompb.FromFloatHistogram(1337, &fh)
require.Equal(t, tc.expectedV1, got2.GetResetHint())
})
t.Run("v2", func(t *testing.T) {
h := testIntHistogram()
h.CounterResetHint = tc.input
got := writev2.FromIntHistogram(1337, &h)
require.Equal(t, tc.expectedV2, got.GetResetHint())
fh := testFloatHistogram()
fh.CounterResetHint = tc.input
got2 := writev2.FromFloatHistogram(1337, &fh)
require.Equal(t, tc.expectedV2, got2.GetResetHint())
})
})
}
}

@ -73,9 +73,11 @@ type Options struct {
// Option used by downstream scraper users like OpenTelemetry Collector
// to help lookup metric metadata. Should be false for Prometheus.
PassMetadataInContext bool
// Option to enable the experimental in-memory metadata storage and append
// metadata to the WAL.
EnableMetadataStorage bool
// Option to enable appending of scraped Metadata to the TSDB/other appenders. Individual appenders
// can decide what to do with metadata, but for practical purposes this flag exists so that metadata
// can be written to the WAL and thus read for remote write.
// TODO: implement some form of metadata storage
AppendMetadata bool
// Option to increase the interval used by scrape manager to throttle target groups updates.
DiscoveryReloadInterval model.Duration
// Option to enable the ingestion of the created timestamp as a synthetic zero sample.

@ -181,7 +181,7 @@ func newScrapePool(cfg *config.ScrapeConfig, app storage.Appendable, offsetSeed
options.EnableNativeHistogramsIngestion,
options.EnableCreatedTimestampZeroIngestion,
options.ExtraMetrics,
options.EnableMetadataStorage,
options.AppendMetadata,
opts.target,
options.PassMetadataInContext,
metrics,

@ -10,8 +10,9 @@ if ! [[ "$0" =~ "scripts/genproto.sh" ]]; then
exit 255
fi
# TODO(bwplotka): Move to buf, this is not OSS agnostic, likely won't work locally.
if ! [[ $(protoc --version) =~ "3.15.8" ]]; then
echo "could not find protoc 3.15.8, is it installed + in PATH?"
echo "could not find protoc 3.15.8, is it installed + in PATH? Consider commenting out this check for local flow"
exit 255
fi
@ -40,6 +41,9 @@ for dir in ${DIRS}; do
-I="${PROM_PATH}" \
-I="${GRPC_GATEWAY_ROOT}/third_party/googleapis" \
./*.proto
protoc --gogofast_out=plugins=grpc:. -I=. \
-I="${GOGOPROTO_PATH}" \
./io/prometheus/write/v2/*.proto
protoc --gogofast_out=Mgoogle/protobuf/timestamp.proto=github.com/gogo/protobuf/types,paths=source_relative:. -I=. \
-I="${GOGOPROTO_PATH}" \
./io/prometheus/client/*.proto

@ -35,13 +35,40 @@ import (
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/trace"
"github.com/prometheus/prometheus/config"
"github.com/prometheus/prometheus/prompb"
"github.com/prometheus/prometheus/storage/remote/azuread"
)
const maxErrMsgLen = 1024
var UserAgent = fmt.Sprintf("Prometheus/%s", version.Version)
const (
RemoteWriteVersionHeader = "X-Prometheus-Remote-Write-Version"
RemoteWriteVersion1HeaderValue = "0.1.0"
RemoteWriteVersion20HeaderValue = "2.0.0"
appProtoContentType = "application/x-protobuf"
)
// Compression represents the encoding. Currently remote storage supports only
// one, but we experiment with more, thus leaving the compression scaffolding
// for now.
// NOTE(bwplotka): Keeping it public, as a non-stable help for importers to use.
type Compression string
const (
// SnappyBlockCompression represents https://github.com/google/snappy/blob/2c94e11145f0b7b184b831577c93e5a41c4c0346/format_description.txt
SnappyBlockCompression Compression = "snappy"
)
var (
// UserAgent represents Prometheus version to use for user agent header.
UserAgent = fmt.Sprintf("Prometheus/%s", version.Version)
remoteWriteContentTypeHeaders = map[config.RemoteWriteProtoMsg]string{
config.RemoteWriteProtoMsgV1: appProtoContentType, // Also application/x-protobuf;proto=prometheus.WriteRequest but simplified for compatibility with 1.x spec.
config.RemoteWriteProtoMsgV2: appProtoContentType + ";proto=io.prometheus.write.v2.Request",
}
)
var (
remoteReadQueriesTotal = prometheus.NewCounterVec(
@ -93,6 +120,9 @@ type Client struct {
readQueries prometheus.Gauge
readQueriesTotal *prometheus.CounterVec
readQueriesDuration prometheus.Observer
writeProtoMsg config.RemoteWriteProtoMsg
writeCompression Compression // Not exposed by ClientConfig for now.
}
// ClientConfig configures a client.
@ -104,6 +134,7 @@ type ClientConfig struct {
AzureADConfig *azuread.AzureADConfig
Headers map[string]string
RetryOnRateLimit bool
WriteProtoMsg config.RemoteWriteProtoMsg
}
// ReadClient uses the SAMPLES method of remote read to read series samples from remote server.
@ -162,14 +193,20 @@ func NewWriteClient(name string, conf *ClientConfig) (WriteClient, error) {
}
}
httpClient.Transport = otelhttp.NewTransport(t)
writeProtoMsg := config.RemoteWriteProtoMsgV1
if conf.WriteProtoMsg != "" {
writeProtoMsg = conf.WriteProtoMsg
}
httpClient.Transport = otelhttp.NewTransport(t)
return &Client{
remoteName: name,
urlString: conf.URL.String(),
Client: httpClient,
retryOnRateLimit: conf.RetryOnRateLimit,
timeout: time.Duration(conf.Timeout),
writeProtoMsg: writeProtoMsg,
writeCompression: SnappyBlockCompression,
}, nil
}
@ -206,10 +243,16 @@ func (c *Client) Store(ctx context.Context, req []byte, attempt int) error {
return err
}
httpReq.Header.Add("Content-Encoding", "snappy")
httpReq.Header.Set("Content-Type", "application/x-protobuf")
httpReq.Header.Add("Content-Encoding", string(c.writeCompression))
httpReq.Header.Set("Content-Type", remoteWriteContentTypeHeaders[c.writeProtoMsg])
httpReq.Header.Set("User-Agent", UserAgent)
httpReq.Header.Set("X-Prometheus-Remote-Write-Version", "0.1.0")
if c.writeProtoMsg == config.RemoteWriteProtoMsgV1 {
// Compatibility mode for 1.0.
httpReq.Header.Set(RemoteWriteVersionHeader, RemoteWriteVersion1HeaderValue)
} else {
httpReq.Header.Set(RemoteWriteVersionHeader, RemoteWriteVersion20HeaderValue)
}
if attempt > 0 {
httpReq.Header.Set("Retry-Attempt", strconv.Itoa(attempt))
}
@ -265,12 +308,12 @@ func retryAfterDuration(t string) model.Duration {
}
// Name uniquely identifies the client.
func (c Client) Name() string {
func (c *Client) Name() string {
return c.remoteName
}
// Endpoint is the remote read or write endpoint.
func (c Client) Endpoint() string {
func (c *Client) Endpoint() string {
return c.urlString
}

@ -22,7 +22,6 @@ import (
"net/http"
"slices"
"sort"
"strings"
"sync"
"github.com/gogo/protobuf/proto"
@ -30,10 +29,10 @@ import (
"github.com/prometheus/common/model"
"go.opentelemetry.io/collector/pdata/pmetric/pmetricotlp"
"github.com/prometheus/prometheus/model/exemplar"
"github.com/prometheus/prometheus/model/histogram"
"github.com/prometheus/prometheus/model/labels"
"github.com/prometheus/prometheus/prompb"
writev2 "github.com/prometheus/prometheus/prompb/io/prometheus/write/v2"
"github.com/prometheus/prometheus/storage"
"github.com/prometheus/prometheus/tsdb/chunkenc"
"github.com/prometheus/prometheus/tsdb/chunks"
@ -153,10 +152,10 @@ func ToQueryResult(ss storage.SeriesSet, sampleLimit int) (*prompb.QueryResult,
})
case chunkenc.ValHistogram:
ts, h := iter.AtHistogram(nil)
histograms = append(histograms, HistogramToHistogramProto(ts, h))
histograms = append(histograms, prompb.FromIntHistogram(ts, h))
case chunkenc.ValFloatHistogram:
ts, fh := iter.AtFloatHistogram(nil)
histograms = append(histograms, FloatHistogramToHistogramProto(ts, fh))
histograms = append(histograms, prompb.FromFloatHistogram(ts, fh))
default:
return nil, ss.Warnings(), fmt.Errorf("unrecognized value type: %s", valType)
}
@ -166,7 +165,7 @@ func ToQueryResult(ss storage.SeriesSet, sampleLimit int) (*prompb.QueryResult,
}
resp.Timeseries = append(resp.Timeseries, &prompb.TimeSeries{
Labels: LabelsToLabelsProto(series.Labels(), nil),
Labels: prompb.FromLabels(series.Labels(), nil),
Samples: samples,
Histograms: histograms,
})
@ -182,7 +181,7 @@ func FromQueryResult(sortSeries bool, res *prompb.QueryResult) storage.SeriesSet
if err := validateLabelsAndMetricName(ts.Labels); err != nil {
return errSeriesSet{err: err}
}
lbls := LabelProtosToLabels(&b, ts.Labels)
lbls := ts.ToLabels(&b, nil)
series = append(series, &concreteSeries{labels: lbls, floats: ts.Samples, histograms: ts.Histograms})
}
@ -235,7 +234,7 @@ func StreamChunkedReadResponses(
for ss.Next() {
series := ss.At()
iter = series.Iterator(iter)
lbls = MergeLabels(LabelsToLabelsProto(series.Labels(), lbls), sortedExternalLabels)
lbls = MergeLabels(prompb.FromLabels(series.Labels(), lbls), sortedExternalLabels)
maxDataLength := maxBytesInFrame
for _, lbl := range lbls {
@ -481,21 +480,16 @@ func (c *concreteSeriesIterator) AtHistogram(*histogram.Histogram) (int64, *hist
panic("iterator is not on an integer histogram sample")
}
h := c.series.histograms[c.histogramsCur]
return h.Timestamp, HistogramProtoToHistogram(h)
return h.Timestamp, h.ToIntHistogram()
}
// AtFloatHistogram implements chunkenc.Iterator.
func (c *concreteSeriesIterator) AtFloatHistogram(*histogram.FloatHistogram) (int64, *histogram.FloatHistogram) {
switch c.curValType {
case chunkenc.ValHistogram:
fh := c.series.histograms[c.histogramsCur]
return fh.Timestamp, HistogramProtoToFloatHistogram(fh)
case chunkenc.ValFloatHistogram:
if c.curValType == chunkenc.ValHistogram || c.curValType == chunkenc.ValFloatHistogram {
fh := c.series.histograms[c.histogramsCur]
return fh.Timestamp, FloatHistogramProtoToFloatHistogram(fh)
default:
panic("iterator is not on a histogram sample")
return fh.Timestamp, fh.ToFloatHistogram() // integer will be auto-converted.
}
panic("iterator is not on a histogram sample")
}
// AtT implements chunkenc.Iterator.
@ -618,141 +612,6 @@ func FromLabelMatchers(matchers []*prompb.LabelMatcher) ([]*labels.Matcher, erro
return result, nil
}
func exemplarProtoToExemplar(b *labels.ScratchBuilder, ep prompb.Exemplar) exemplar.Exemplar {
timestamp := ep.Timestamp
return exemplar.Exemplar{
Labels: LabelProtosToLabels(b, ep.Labels),
Value: ep.Value,
Ts: timestamp,
HasTs: timestamp != 0,
}
}
// HistogramProtoToHistogram extracts a (normal integer) Histogram from the
// provided proto message. The caller has to make sure that the proto message
// represents an integer histogram and not a float histogram, or it panics.
func HistogramProtoToHistogram(hp prompb.Histogram) *histogram.Histogram {
if hp.IsFloatHistogram() {
panic("HistogramProtoToHistogram called with a float histogram")
}
return &histogram.Histogram{
CounterResetHint: histogram.CounterResetHint(hp.ResetHint),
Schema: hp.Schema,
ZeroThreshold: hp.ZeroThreshold,
ZeroCount: hp.GetZeroCountInt(),
Count: hp.GetCountInt(),
Sum: hp.Sum,
PositiveSpans: spansProtoToSpans(hp.GetPositiveSpans()),
PositiveBuckets: hp.GetPositiveDeltas(),
NegativeSpans: spansProtoToSpans(hp.GetNegativeSpans()),
NegativeBuckets: hp.GetNegativeDeltas(),
}
}
// FloatHistogramProtoToFloatHistogram extracts a float Histogram from the
// provided proto message to a Float Histogram. The caller has to make sure that
// the proto message represents a float histogram and not an integer histogram,
// or it panics.
func FloatHistogramProtoToFloatHistogram(hp prompb.Histogram) *histogram.FloatHistogram {
if !hp.IsFloatHistogram() {
panic("FloatHistogramProtoToFloatHistogram called with an integer histogram")
}
return &histogram.FloatHistogram{
CounterResetHint: histogram.CounterResetHint(hp.ResetHint),
Schema: hp.Schema,
ZeroThreshold: hp.ZeroThreshold,
ZeroCount: hp.GetZeroCountFloat(),
Count: hp.GetCountFloat(),
Sum: hp.Sum,
PositiveSpans: spansProtoToSpans(hp.GetPositiveSpans()),
PositiveBuckets: hp.GetPositiveCounts(),
NegativeSpans: spansProtoToSpans(hp.GetNegativeSpans()),
NegativeBuckets: hp.GetNegativeCounts(),
}
}
// HistogramProtoToFloatHistogram extracts and converts a (normal integer) histogram from the provided proto message
// to a float histogram. The caller has to make sure that the proto message represents an integer histogram and not a
// float histogram, or it panics.
func HistogramProtoToFloatHistogram(hp prompb.Histogram) *histogram.FloatHistogram {
if hp.IsFloatHistogram() {
panic("HistogramProtoToFloatHistogram called with a float histogram")
}
return &histogram.FloatHistogram{
CounterResetHint: histogram.CounterResetHint(hp.ResetHint),
Schema: hp.Schema,
ZeroThreshold: hp.ZeroThreshold,
ZeroCount: float64(hp.GetZeroCountInt()),
Count: float64(hp.GetCountInt()),
Sum: hp.Sum,
PositiveSpans: spansProtoToSpans(hp.GetPositiveSpans()),
PositiveBuckets: deltasToCounts(hp.GetPositiveDeltas()),
NegativeSpans: spansProtoToSpans(hp.GetNegativeSpans()),
NegativeBuckets: deltasToCounts(hp.GetNegativeDeltas()),
}
}
func spansProtoToSpans(s []prompb.BucketSpan) []histogram.Span {
spans := make([]histogram.Span, len(s))
for i := 0; i < len(s); i++ {
spans[i] = histogram.Span{Offset: s[i].Offset, Length: s[i].Length}
}
return spans
}
func deltasToCounts(deltas []int64) []float64 {
counts := make([]float64, len(deltas))
var cur float64
for i, d := range deltas {
cur += float64(d)
counts[i] = cur
}
return counts
}
func HistogramToHistogramProto(timestamp int64, h *histogram.Histogram) prompb.Histogram {
return prompb.Histogram{
Count: &prompb.Histogram_CountInt{CountInt: h.Count},
Sum: h.Sum,
Schema: h.Schema,
ZeroThreshold: h.ZeroThreshold,
ZeroCount: &prompb.Histogram_ZeroCountInt{ZeroCountInt: h.ZeroCount},
NegativeSpans: spansToSpansProto(h.NegativeSpans),
NegativeDeltas: h.NegativeBuckets,
PositiveSpans: spansToSpansProto(h.PositiveSpans),
PositiveDeltas: h.PositiveBuckets,
ResetHint: prompb.Histogram_ResetHint(h.CounterResetHint),
Timestamp: timestamp,
}
}
func FloatHistogramToHistogramProto(timestamp int64, fh *histogram.FloatHistogram) prompb.Histogram {
return prompb.Histogram{
Count: &prompb.Histogram_CountFloat{CountFloat: fh.Count},
Sum: fh.Sum,
Schema: fh.Schema,
ZeroThreshold: fh.ZeroThreshold,
ZeroCount: &prompb.Histogram_ZeroCountFloat{ZeroCountFloat: fh.ZeroCount},
NegativeSpans: spansToSpansProto(fh.NegativeSpans),
NegativeCounts: fh.NegativeBuckets,
PositiveSpans: spansToSpansProto(fh.PositiveSpans),
PositiveCounts: fh.PositiveBuckets,
ResetHint: prompb.Histogram_ResetHint(fh.CounterResetHint),
Timestamp: timestamp,
}
}
func spansToSpansProto(s []histogram.Span) []prompb.BucketSpan {
spans := make([]prompb.BucketSpan, len(s))
for i := 0; i < len(s); i++ {
spans[i] = prompb.BucketSpan{Offset: s[i].Offset, Length: s[i].Length}
}
return spans
}
// LabelProtosToMetric unpack a []*prompb.Label to a model.Metric.
func LabelProtosToMetric(labelPairs []*prompb.Label) model.Metric {
metric := make(model.Metric, len(labelPairs))
@ -762,44 +621,32 @@ func LabelProtosToMetric(labelPairs []*prompb.Label) model.Metric {
return metric
}
// LabelProtosToLabels transforms prompb labels into labels. The labels builder
// will be used to build the returned labels.
func LabelProtosToLabels(b *labels.ScratchBuilder, labelPairs []prompb.Label) labels.Labels {
b.Reset()
for _, l := range labelPairs {
b.Add(l.Name, l.Value)
// DecodeWriteRequest from an io.Reader into a prompb.WriteRequest, handling
// snappy decompression.
// Used also by documentation/examples/remote_storage.
func DecodeWriteRequest(r io.Reader) (*prompb.WriteRequest, error) {
compressed, err := io.ReadAll(r)
if err != nil {
return nil, err
}
b.Sort()
return b.Labels()
}
// LabelsToLabelsProto transforms labels into prompb labels. The buffer slice
// will be used to avoid allocations if it is big enough to store the labels.
func LabelsToLabelsProto(lbls labels.Labels, buf []prompb.Label) []prompb.Label {
result := buf[:0]
lbls.Range(func(l labels.Label) {
result = append(result, prompb.Label{
Name: l.Name,
Value: l.Value,
})
})
return result
}
reqBuf, err := snappy.Decode(nil, compressed)
if err != nil {
return nil, err
}
// metricTypeToMetricTypeProto transforms a Prometheus metricType into prompb metricType. Since the former is a string we need to transform it to an enum.
func metricTypeToMetricTypeProto(t model.MetricType) prompb.MetricMetadata_MetricType {
mt := strings.ToUpper(string(t))
v, ok := prompb.MetricMetadata_MetricType_value[mt]
if !ok {
return prompb.MetricMetadata_UNKNOWN
var req prompb.WriteRequest
if err := proto.Unmarshal(reqBuf, &req); err != nil {
return nil, err
}
return prompb.MetricMetadata_MetricType(v)
return &req, nil
}
// DecodeWriteRequest from an io.Reader into a prompb.WriteRequest, handling
// DecodeWriteV2Request from an io.Reader into a writev2.Request, handling
// snappy decompression.
func DecodeWriteRequest(r io.Reader) (*prompb.WriteRequest, error) {
// Used also by documentation/examples/remote_storage.
func DecodeWriteV2Request(r io.Reader) (*writev2.Request, error) {
compressed, err := io.ReadAll(r)
if err != nil {
return nil, err
@ -810,7 +657,7 @@ func DecodeWriteRequest(r io.Reader) (*prompb.WriteRequest, error) {
return nil, err
}
var req prompb.WriteRequest
var req writev2.Request
if err := proto.Unmarshal(reqBuf, &req); err != nil {
return nil, err
}

@ -19,13 +19,16 @@ import (
"sync"
"testing"
"github.com/go-kit/log"
"github.com/gogo/protobuf/proto"
"github.com/prometheus/common/model"
"github.com/stretchr/testify/require"
"github.com/prometheus/prometheus/model/histogram"
"github.com/prometheus/prometheus/model/labels"
"github.com/prometheus/prometheus/model/metadata"
"github.com/prometheus/prometheus/prompb"
writev2 "github.com/prometheus/prometheus/prompb/io/prometheus/write/v2"
"github.com/prometheus/prometheus/storage"
"github.com/prometheus/prometheus/tsdb/chunkenc"
"github.com/prometheus/prometheus/tsdb/chunks"
@ -57,7 +60,7 @@ var writeRequestFixture = &prompb.WriteRequest{
},
Samples: []prompb.Sample{{Value: 1, Timestamp: 0}},
Exemplars: []prompb.Exemplar{{Labels: []prompb.Label{{Name: "f", Value: "g"}}, Value: 1, Timestamp: 0}},
Histograms: []prompb.Histogram{HistogramToHistogramProto(0, &testHistogram), FloatHistogramToHistogramProto(1, testHistogram.ToFloat(nil))},
Histograms: []prompb.Histogram{prompb.FromIntHistogram(0, &testHistogram), prompb.FromFloatHistogram(1, testHistogram.ToFloat(nil))},
},
{
Labels: []prompb.Label{
@ -69,11 +72,59 @@ var writeRequestFixture = &prompb.WriteRequest{
},
Samples: []prompb.Sample{{Value: 2, Timestamp: 1}},
Exemplars: []prompb.Exemplar{{Labels: []prompb.Label{{Name: "h", Value: "i"}}, Value: 2, Timestamp: 1}},
Histograms: []prompb.Histogram{HistogramToHistogramProto(2, &testHistogram), FloatHistogramToHistogramProto(3, testHistogram.ToFloat(nil))},
Histograms: []prompb.Histogram{prompb.FromIntHistogram(2, &testHistogram), prompb.FromFloatHistogram(3, testHistogram.ToFloat(nil))},
},
},
}
var (
writeV2RequestSeries1Metadata = metadata.Metadata{
Type: model.MetricTypeGauge,
Help: "Test gauge for test purposes",
Unit: "Maybe op/sec who knows (:",
}
writeV2RequestSeries2Metadata = metadata.Metadata{
Type: model.MetricTypeCounter,
Help: "Test counter for test purposes",
}
// writeV2RequestFixture represents the same request as writeRequestFixture, but using the v2 representation.
writeV2RequestFixture = func() *writev2.Request {
st := writev2.NewSymbolTable()
b := labels.NewScratchBuilder(0)
labelRefs := st.SymbolizeLabels(writeRequestFixture.Timeseries[0].ToLabels(&b, nil), nil)
exemplar1LabelRefs := st.SymbolizeLabels(writeRequestFixture.Timeseries[0].Exemplars[0].ToExemplar(&b, nil).Labels, nil)
exemplar2LabelRefs := st.SymbolizeLabels(writeRequestFixture.Timeseries[0].Exemplars[0].ToExemplar(&b, nil).Labels, nil)
return &writev2.Request{
Timeseries: []writev2.TimeSeries{
{
LabelsRefs: labelRefs,
Metadata: writev2.Metadata{
Type: writev2.Metadata_METRIC_TYPE_GAUGE, // Same as writeV2RequestSeries1Metadata.Type, but in writev2.
HelpRef: st.Symbolize(writeV2RequestSeries1Metadata.Help),
UnitRef: st.Symbolize(writeV2RequestSeries1Metadata.Unit),
},
Samples: []writev2.Sample{{Value: 1, Timestamp: 0}},
Exemplars: []writev2.Exemplar{{LabelsRefs: exemplar1LabelRefs, Value: 1, Timestamp: 0}},
Histograms: []writev2.Histogram{writev2.FromIntHistogram(0, &testHistogram), writev2.FromFloatHistogram(1, testHistogram.ToFloat(nil))},
},
{
LabelsRefs: labelRefs,
Metadata: writev2.Metadata{
Type: writev2.Metadata_METRIC_TYPE_COUNTER, // Same as writeV2RequestSeries2Metadata.Type, but in writev2.
HelpRef: st.Symbolize(writeV2RequestSeries2Metadata.Help),
// No unit.
},
Samples: []writev2.Sample{{Value: 2, Timestamp: 1}},
Exemplars: []writev2.Exemplar{{LabelsRefs: exemplar2LabelRefs, Value: 2, Timestamp: 1}},
Histograms: []writev2.Histogram{writev2.FromIntHistogram(2, &testHistogram), writev2.FromFloatHistogram(3, testHistogram.ToFloat(nil))},
},
},
Symbols: st.Symbols(),
}
}()
)
func TestValidateLabelsAndMetricName(t *testing.T) {
tests := []struct {
input []prompb.Label
@ -268,7 +319,7 @@ func TestConcreteSeriesIterator_HistogramSamples(t *testing.T) {
} else {
ts = int64(i)
}
histProtos[i] = HistogramToHistogramProto(ts, h)
histProtos[i] = prompb.FromIntHistogram(ts, h)
}
series := &concreteSeries{
labels: labels.FromStrings("foo", "bar"),
@ -319,9 +370,9 @@ func TestConcreteSeriesIterator_FloatAndHistogramSamples(t *testing.T) {
histProtos := make([]prompb.Histogram, len(histograms))
for i, h := range histograms {
if i < 10 {
histProtos[i] = HistogramToHistogramProto(int64(i+1), h)
histProtos[i] = prompb.FromIntHistogram(int64(i+1), h)
} else {
histProtos[i] = HistogramToHistogramProto(int64(i+6), h)
histProtos[i] = prompb.FromIntHistogram(int64(i+6), h)
}
}
series := &concreteSeries{
@ -401,7 +452,7 @@ func TestConcreteSeriesIterator_FloatAndHistogramSamples(t *testing.T) {
require.Equal(t, chunkenc.ValHistogram, it.Next())
ts, fh = it.AtFloatHistogram(nil)
require.Equal(t, int64(17), ts)
expected := HistogramProtoToFloatHistogram(HistogramToHistogramProto(int64(17), histograms[11]))
expected := prompb.FromIntHistogram(int64(17), histograms[11]).ToFloatHistogram()
require.Equal(t, expected, fh)
// Keep calling Next() until the end.
@ -485,39 +536,8 @@ func TestMergeLabels(t *testing.T) {
}
}
func TestMetricTypeToMetricTypeProto(t *testing.T) {
tc := []struct {
desc string
input model.MetricType
expected prompb.MetricMetadata_MetricType
}{
{
desc: "with a single-word metric",
input: model.MetricTypeCounter,
expected: prompb.MetricMetadata_COUNTER,
},
{
desc: "with a two-word metric",
input: model.MetricTypeStateset,
expected: prompb.MetricMetadata_STATESET,
},
{
desc: "with an unknown metric",
input: "not-known",
expected: prompb.MetricMetadata_UNKNOWN,
},
}
for _, tt := range tc {
t.Run(tt.desc, func(t *testing.T) {
m := metricTypeToMetricTypeProto(tt.input)
require.Equal(t, tt.expected, m)
})
}
}
func TestDecodeWriteRequest(t *testing.T) {
buf, _, _, err := buildWriteRequest(nil, writeRequestFixture.Timeseries, nil, nil, nil, nil)
buf, _, _, err := buildWriteRequest(nil, writeRequestFixture.Timeseries, nil, nil, nil, nil, "snappy")
require.NoError(t, err)
actual, err := DecodeWriteRequest(bytes.NewReader(buf))
@ -525,212 +545,18 @@ func TestDecodeWriteRequest(t *testing.T) {
require.Equal(t, writeRequestFixture, actual)
}
func TestNilHistogramProto(*testing.T) {
// This function will panic if it impromperly handles nil
// values, causing the test to fail.
HistogramProtoToHistogram(prompb.Histogram{})
HistogramProtoToFloatHistogram(prompb.Histogram{})
}
func exampleHistogram() histogram.Histogram {
return histogram.Histogram{
CounterResetHint: histogram.GaugeType,
Schema: 0,
Count: 19,
Sum: 2.7,
PositiveSpans: []histogram.Span{
{Offset: 0, Length: 4},
{Offset: 0, Length: 0},
{Offset: 0, Length: 3},
},
PositiveBuckets: []int64{1, 2, -2, 1, -1, 0, 0},
NegativeSpans: []histogram.Span{
{Offset: 0, Length: 5},
{Offset: 1, Length: 0},
{Offset: 0, Length: 1},
},
NegativeBuckets: []int64{1, 2, -2, 1, -1, 0},
}
}
func exampleHistogramProto() prompb.Histogram {
return prompb.Histogram{
Count: &prompb.Histogram_CountInt{CountInt: 19},
Sum: 2.7,
Schema: 0,
ZeroThreshold: 0,
ZeroCount: &prompb.Histogram_ZeroCountInt{ZeroCountInt: 0},
NegativeSpans: []prompb.BucketSpan{
{
Offset: 0,
Length: 5,
},
{
Offset: 1,
Length: 0,
},
{
Offset: 0,
Length: 1,
},
},
NegativeDeltas: []int64{1, 2, -2, 1, -1, 0},
PositiveSpans: []prompb.BucketSpan{
{
Offset: 0,
Length: 4,
},
{
Offset: 0,
Length: 0,
},
{
Offset: 0,
Length: 3,
},
},
PositiveDeltas: []int64{1, 2, -2, 1, -1, 0, 0},
ResetHint: prompb.Histogram_GAUGE,
Timestamp: 1337,
}
}
func TestHistogramToProtoConvert(t *testing.T) {
tests := []struct {
input histogram.CounterResetHint
expected prompb.Histogram_ResetHint
}{
{
input: histogram.UnknownCounterReset,
expected: prompb.Histogram_UNKNOWN,
},
{
input: histogram.CounterReset,
expected: prompb.Histogram_YES,
},
{
input: histogram.NotCounterReset,
expected: prompb.Histogram_NO,
},
{
input: histogram.GaugeType,
expected: prompb.Histogram_GAUGE,
},
}
for _, test := range tests {
h := exampleHistogram()
h.CounterResetHint = test.input
p := exampleHistogramProto()
p.ResetHint = test.expected
require.Equal(t, p, HistogramToHistogramProto(1337, &h))
require.Equal(t, h, *HistogramProtoToHistogram(p))
}
}
func exampleFloatHistogram() histogram.FloatHistogram {
return histogram.FloatHistogram{
CounterResetHint: histogram.GaugeType,
Schema: 0,
Count: 19,
Sum: 2.7,
PositiveSpans: []histogram.Span{
{Offset: 0, Length: 4},
{Offset: 0, Length: 0},
{Offset: 0, Length: 3},
},
PositiveBuckets: []float64{1, 2, -2, 1, -1, 0, 0},
NegativeSpans: []histogram.Span{
{Offset: 0, Length: 5},
{Offset: 1, Length: 0},
{Offset: 0, Length: 1},
},
NegativeBuckets: []float64{1, 2, -2, 1, -1, 0},
}
}
func exampleFloatHistogramProto() prompb.Histogram {
return prompb.Histogram{
Count: &prompb.Histogram_CountFloat{CountFloat: 19},
Sum: 2.7,
Schema: 0,
ZeroThreshold: 0,
ZeroCount: &prompb.Histogram_ZeroCountFloat{ZeroCountFloat: 0},
NegativeSpans: []prompb.BucketSpan{
{
Offset: 0,
Length: 5,
},
{
Offset: 1,
Length: 0,
},
{
Offset: 0,
Length: 1,
},
},
NegativeCounts: []float64{1, 2, -2, 1, -1, 0},
PositiveSpans: []prompb.BucketSpan{
{
Offset: 0,
Length: 4,
},
{
Offset: 0,
Length: 0,
},
{
Offset: 0,
Length: 3,
},
},
PositiveCounts: []float64{1, 2, -2, 1, -1, 0, 0},
ResetHint: prompb.Histogram_GAUGE,
Timestamp: 1337,
}
}
func TestFloatHistogramToProtoConvert(t *testing.T) {
tests := []struct {
input histogram.CounterResetHint
expected prompb.Histogram_ResetHint
}{
{
input: histogram.UnknownCounterReset,
expected: prompb.Histogram_UNKNOWN,
},
{
input: histogram.CounterReset,
expected: prompb.Histogram_YES,
},
{
input: histogram.NotCounterReset,
expected: prompb.Histogram_NO,
},
{
input: histogram.GaugeType,
expected: prompb.Histogram_GAUGE,
},
}
for _, test := range tests {
h := exampleFloatHistogram()
h.CounterResetHint = test.input
p := exampleFloatHistogramProto()
p.ResetHint = test.expected
require.Equal(t, p, FloatHistogramToHistogramProto(1337, &h))
func TestDecodeWriteV2Request(t *testing.T) {
buf, _, _, err := buildV2WriteRequest(log.NewNopLogger(), writeV2RequestFixture.Timeseries, writeV2RequestFixture.Symbols, nil, nil, nil, "snappy")
require.NoError(t, err)
require.Equal(t, h, *FloatHistogramProtoToFloatHistogram(p))
}
actual, err := DecodeWriteV2Request(bytes.NewReader(buf))
require.NoError(t, err)
require.Equal(t, writeV2RequestFixture, actual)
}
func TestStreamResponse(t *testing.T) {
lbs1 := LabelsToLabelsProto(labels.FromStrings("instance", "localhost1", "job", "demo1"), nil)
lbs2 := LabelsToLabelsProto(labels.FromStrings("instance", "localhost2", "job", "demo2"), nil)
lbs1 := prompb.FromLabels(labels.FromStrings("instance", "localhost1", "job", "demo1"), nil)
lbs2 := prompb.FromLabels(labels.FromStrings("instance", "localhost2", "job", "demo2"), nil)
chunk := prompb.Chunk{
Type: prompb.Chunk_XOR,
Data: make([]byte, 100),
@ -802,7 +628,7 @@ func (c *mockChunkSeriesSet) Next() bool {
func (c *mockChunkSeriesSet) At() storage.ChunkSeries {
return &storage.ChunkSeriesEntry{
Lset: LabelProtosToLabels(&c.builder, c.chunkedSeries[c.index].Labels),
Lset: c.chunkedSeries[c.index].ToLabels(&c.builder, nil),
ChunkIteratorFn: func(chunks.Iterator) chunks.Iterator {
return &mockChunkIterator{
chunks: c.chunkedSeries[c.index].Chunks,

@ -27,7 +27,7 @@ import (
// MetadataAppender is an interface used by the Metadata Watcher to send metadata, It is read from the scrape manager, on to somewhere else.
type MetadataAppender interface {
AppendMetadata(context.Context, []scrape.MetricMetadata)
AppendWatcherMetadata(context.Context, []scrape.MetricMetadata)
}
// Watchable represents from where we fetch active targets for metadata.
@ -146,7 +146,7 @@ func (mw *MetadataWatcher) collect() {
}
// Blocks until the metadata is sent to the remote write endpoint or hardShutdownContext is expired.
mw.writer.AppendMetadata(mw.hardShutdownCtx, metadata)
mw.writer.AppendWatcherMetadata(mw.hardShutdownCtx, metadata)
}
func (mw *MetadataWatcher) ready() bool {

@ -57,7 +57,7 @@ type writeMetadataToMock struct {
metadataAppended int
}
func (mwtm *writeMetadataToMock) AppendMetadata(_ context.Context, m []scrape.MetricMetadata) {
func (mwtm *writeMetadataToMock) AppendWatcherMetadata(_ context.Context, m []scrape.MetricMetadata) {
mwtm.metadataAppended += len(m)
}

@ -29,7 +29,6 @@ import (
// Prometheus best practices for units: https://prometheus.io/docs/practices/naming/#base-units
// OpenMetrics specification for units: https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#units-and-base-units
var unitMap = map[string]string{
// Time
"d": "days",
"h": "hours",
@ -111,7 +110,6 @@ func BuildCompliantName(metric pmetric.Metric, namespace string, addMetricSuffix
// Build a normalized name for the specified metric
func normalizeName(metric pmetric.Metric, namespace string) string {
// Split metric name in "tokens" (remove all non-alphanumeric)
nameTokens := strings.FieldsFunc(
metric.Name(),

@ -19,7 +19,6 @@ package prometheus
import "strings"
var wordToUCUM = map[string]string{
// Time
"days": "d",
"hours": "h",

@ -36,9 +36,11 @@ import (
"github.com/prometheus/prometheus/config"
"github.com/prometheus/prometheus/model/histogram"
"github.com/prometheus/prometheus/model/labels"
"github.com/prometheus/prometheus/model/metadata"
"github.com/prometheus/prometheus/model/relabel"
"github.com/prometheus/prometheus/model/timestamp"
"github.com/prometheus/prometheus/prompb"
writev2 "github.com/prometheus/prometheus/prompb/io/prometheus/write/v2"
"github.com/prometheus/prometheus/scrape"
"github.com/prometheus/prometheus/tsdb/chunks"
"github.com/prometheus/prometheus/tsdb/record"
@ -389,7 +391,7 @@ func (m *queueManagerMetrics) unregister() {
// external timeseries database.
type WriteClient interface {
// Store stores the given samples in the remote storage.
Store(context.Context, []byte, int) error
Store(ctx context.Context, req []byte, retryAttempt int) error
// Name uniquely identifies the remote storage.
Name() string
// Endpoint is the remote read or write endpoint for the storage client.
@ -418,9 +420,12 @@ type QueueManager struct {
clientMtx sync.RWMutex
storeClient WriteClient
protoMsg config.RemoteWriteProtoMsg
enc Compression
seriesMtx sync.Mutex // Covers seriesLabels, droppedSeries and builder.
seriesMtx sync.Mutex // Covers seriesLabels, seriesMetadata, droppedSeries and builder.
seriesLabels map[chunks.HeadSeriesRef]labels.Labels
seriesMetadata map[chunks.HeadSeriesRef]*metadata.Metadata
droppedSeries map[chunks.HeadSeriesRef]struct{}
builder *labels.Builder
@ -463,6 +468,7 @@ func NewQueueManager(
sm ReadyScrapeManager,
enableExemplarRemoteWrite bool,
enableNativeHistogramRemoteWrite bool,
protoMsg config.RemoteWriteProtoMsg,
) *QueueManager {
if logger == nil {
logger = log.NewNopLogger()
@ -487,6 +493,7 @@ func NewQueueManager(
sendNativeHistograms: enableNativeHistogramRemoteWrite,
seriesLabels: make(map[chunks.HeadSeriesRef]labels.Labels),
seriesMetadata: make(map[chunks.HeadSeriesRef]*metadata.Metadata),
seriesSegmentIndexes: make(map[chunks.HeadSeriesRef]int),
droppedSeries: make(map[chunks.HeadSeriesRef]struct{}),
builder: labels.NewBuilder(labels.EmptyLabels()),
@ -503,9 +510,26 @@ func NewQueueManager(
metrics: metrics,
interner: interner,
highestRecvTimestamp: highestRecvTimestamp,
protoMsg: protoMsg,
enc: SnappyBlockCompression, // Hardcoded for now, but scaffolding exists for likely future use.
}
walMetadata := false
if t.protoMsg != config.RemoteWriteProtoMsgV1 {
walMetadata = true
}
t.watcher = wlog.NewWatcher(watcherMetrics, readerMetrics, logger, client.Name(), t, dir, enableExemplarRemoteWrite, enableNativeHistogramRemoteWrite, walMetadata)
// The current MetadataWatcher implementation is mutually exclusive
// with the new approach, which stores metadata as WAL records and
// ships them alongside series. If both mechanisms are set, the new one
// takes precedence by implicitly disabling the older one.
if t.mcfg.Send && t.protoMsg != config.RemoteWriteProtoMsgV1 {
level.Warn(logger).Log("msg", "usage of 'metadata_config.send' is redundant when using remote write v2 (or higher) as metadata will always be gathered from the WAL and included for every series within each write request")
t.mcfg.Send = false
}
t.watcher = wlog.NewWatcher(watcherMetrics, readerMetrics, logger, client.Name(), t, dir, enableExemplarRemoteWrite, enableNativeHistogramRemoteWrite)
if t.mcfg.Send {
t.metadataWatcher = NewMetadataWatcher(logger, sm, client.Name(), t, t.mcfg.SendInterval, flushDeadline)
}
@ -514,14 +538,21 @@ func NewQueueManager(
return t
}
// AppendMetadata sends metadata to the remote storage. Metadata is sent in batches, but is not parallelized.
func (t *QueueManager) AppendMetadata(ctx context.Context, metadata []scrape.MetricMetadata) {
// AppendWatcherMetadata sends metadata to the remote storage. Metadata is sent in batches, but is not parallelized.
// This is only used for the metadata_config.send setting and 1.x Remote Write.
func (t *QueueManager) AppendWatcherMetadata(ctx context.Context, metadata []scrape.MetricMetadata) {
// no op for any newer proto format, which will cache metadata sent to it from the WAL watcher.
if t.protoMsg != config.RemoteWriteProtoMsgV1 {
return
}
// 1.X will still get metadata in batches.
mm := make([]prompb.MetricMetadata, 0, len(metadata))
for _, entry := range metadata {
mm = append(mm, prompb.MetricMetadata{
MetricFamilyName: entry.Metric,
Help: entry.Help,
Type: metricTypeToMetricTypeProto(entry.Type),
Type: prompb.FromMetadataType(entry.Type),
Unit: entry.Unit,
})
}
@ -542,8 +573,8 @@ func (t *QueueManager) AppendMetadata(ctx context.Context, metadata []scrape.Met
}
func (t *QueueManager) sendMetadataWithBackoff(ctx context.Context, metadata []prompb.MetricMetadata, pBuf *proto.Buffer) error {
// Build the WriteRequest with no samples.
req, _, _, err := buildWriteRequest(t.logger, nil, metadata, pBuf, nil, nil)
// Build the WriteRequest with no samples (v1 flow).
req, _, _, err := buildWriteRequest(t.logger, nil, metadata, pBuf, nil, nil, t.enc)
if err != nil {
return err
}
@ -629,6 +660,36 @@ func isTimeSeriesOldFilter(metrics *queueManagerMetrics, baseTime time.Time, sam
}
}
func isV2TimeSeriesOldFilter(metrics *queueManagerMetrics, baseTime time.Time, sampleAgeLimit time.Duration) func(ts writev2.TimeSeries) bool {
return func(ts writev2.TimeSeries) bool {
if sampleAgeLimit == 0 {
// If sampleAgeLimit is unset, then we never skip samples due to their age.
return false
}
switch {
// Only the first element should be set in the series, therefore we only check the first element.
case len(ts.Samples) > 0:
if isSampleOld(baseTime, sampleAgeLimit, ts.Samples[0].Timestamp) {
metrics.droppedSamplesTotal.WithLabelValues(reasonTooOld).Inc()
return true
}
case len(ts.Histograms) > 0:
if isSampleOld(baseTime, sampleAgeLimit, ts.Histograms[0].Timestamp) {
metrics.droppedHistogramsTotal.WithLabelValues(reasonTooOld).Inc()
return true
}
case len(ts.Exemplars) > 0:
if isSampleOld(baseTime, sampleAgeLimit, ts.Exemplars[0].Timestamp) {
metrics.droppedExemplarsTotal.WithLabelValues(reasonTooOld).Inc()
return true
}
default:
return false
}
return false
}
}
// Append queues a sample to be sent to the remote storage. Blocks until all samples are
// enqueued on their shards or a shutdown signal is received.
func (t *QueueManager) Append(samples []record.RefSample) bool {
@ -652,6 +713,9 @@ outer:
t.seriesMtx.Unlock()
continue
}
// TODO(cstyan): Handle or at least log an error if no metadata is found.
// See https://github.com/prometheus/prometheus/issues/14405
meta := t.seriesMetadata[s.Ref]
t.seriesMtx.Unlock()
// Start with a very small backoff. This should not be t.cfg.MinBackoff
// as it can happen without errors, and we want to pickup work after
@ -666,6 +730,7 @@ outer:
}
if t.shards.enqueue(s.Ref, timeSeries{
seriesLabels: lbls,
metadata: meta,
timestamp: s.T,
value: s.V,
sType: tSample,
@ -711,6 +776,7 @@ outer:
t.seriesMtx.Unlock()
continue
}
meta := t.seriesMetadata[e.Ref]
t.seriesMtx.Unlock()
// This will only loop if the queues are being resharded.
backoff := t.cfg.MinBackoff
@ -722,6 +788,7 @@ outer:
}
if t.shards.enqueue(e.Ref, timeSeries{
seriesLabels: lbls,
metadata: meta,
timestamp: e.T,
value: e.V,
exemplarLabels: e.Labels,
@ -765,6 +832,7 @@ outer:
t.seriesMtx.Unlock()
continue
}
meta := t.seriesMetadata[h.Ref]
t.seriesMtx.Unlock()
backoff := model.Duration(5 * time.Millisecond)
@ -776,6 +844,7 @@ outer:
}
if t.shards.enqueue(h.Ref, timeSeries{
seriesLabels: lbls,
metadata: meta,
timestamp: h.T,
histogram: h.H,
sType: tHistogram,
@ -818,6 +887,7 @@ outer:
t.seriesMtx.Unlock()
continue
}
meta := t.seriesMetadata[h.Ref]
t.seriesMtx.Unlock()
backoff := model.Duration(5 * time.Millisecond)
@ -829,6 +899,7 @@ outer:
}
if t.shards.enqueue(h.Ref, timeSeries{
seriesLabels: lbls,
metadata: meta,
timestamp: h.T,
floatHistogram: h.FH,
sType: tFloatHistogram,
@ -925,6 +996,23 @@ func (t *QueueManager) StoreSeries(series []record.RefSeries, index int) {
}
}
// StoreMetadata keeps track of known series' metadata for lookups when sending samples to remote.
func (t *QueueManager) StoreMetadata(meta []record.RefMetadata) {
if t.protoMsg == config.RemoteWriteProtoMsgV1 {
return
}
t.seriesMtx.Lock()
defer t.seriesMtx.Unlock()
for _, m := range meta {
t.seriesMetadata[m.Ref] = &metadata.Metadata{
Type: record.ToMetricType(m.Type),
Unit: m.Unit,
Help: m.Help,
}
}
}
// UpdateSeriesSegment updates the segment number held against the series,
// so we can trim older ones in SeriesReset.
func (t *QueueManager) UpdateSeriesSegment(series []record.RefSeries, index int) {
@ -950,6 +1038,7 @@ func (t *QueueManager) SeriesReset(index int) {
delete(t.seriesSegmentIndexes, k)
t.releaseLabels(t.seriesLabels[k])
delete(t.seriesLabels, k)
delete(t.seriesMetadata, k)
delete(t.droppedSeries, k)
}
}
@ -1165,6 +1254,7 @@ type shards struct {
samplesDroppedOnHardShutdown atomic.Uint32
exemplarsDroppedOnHardShutdown atomic.Uint32
histogramsDroppedOnHardShutdown atomic.Uint32
metadataDroppedOnHardShutdown atomic.Uint32
}
// start the shards; must be called before any call to enqueue.
@ -1193,6 +1283,7 @@ func (s *shards) start(n int) {
s.samplesDroppedOnHardShutdown.Store(0)
s.exemplarsDroppedOnHardShutdown.Store(0)
s.histogramsDroppedOnHardShutdown.Store(0)
s.metadataDroppedOnHardShutdown.Store(0)
for i := 0; i < n; i++ {
go s.runShard(hardShutdownCtx, i, newQueues[i])
}
@ -1245,7 +1336,6 @@ func (s *shards) stop() {
func (s *shards) enqueue(ref chunks.HeadSeriesRef, data timeSeries) bool {
s.mtx.RLock()
defer s.mtx.RUnlock()
shard := uint64(ref) % uint64(len(s.queues))
select {
case <-s.softShutdown:
@ -1288,6 +1378,7 @@ type timeSeries struct {
value float64
histogram *histogram.Histogram
floatHistogram *histogram.FloatHistogram
metadata *metadata.Metadata
timestamp int64
exemplarLabels labels.Labels
// The type of series: sample, exemplar, or histogram.
@ -1301,6 +1392,7 @@ const (
tExemplar
tHistogram
tFloatHistogram
tMetadata
)
func newQueue(batchSize, capacity int) *queue {
@ -1324,6 +1416,10 @@ func newQueue(batchSize, capacity int) *queue {
func (q *queue) Append(datum timeSeries) bool {
q.batchMtx.Lock()
defer q.batchMtx.Unlock()
// TODO(cstyan): Check if metadata now means we've reduced the total # of samples
// we can batch together here, and if so find a way to not include metadata
// in the batch size calculation.
// See https://github.com/prometheus/prometheus/issues/14405
q.batch = append(q.batch, datum)
if len(q.batch) == cap(q.batch) {
select {
@ -1347,7 +1443,6 @@ func (q *queue) Chan() <-chan []timeSeries {
func (q *queue) Batch() []timeSeries {
q.batchMtx.Lock()
defer q.batchMtx.Unlock()
select {
case batch := <-q.batchQueue:
return batch
@ -1419,6 +1514,7 @@ func (s *shards) runShard(ctx context.Context, shardID int, queue *queue) {
}()
shardNum := strconv.Itoa(shardID)
symbolTable := writev2.NewSymbolTable()
// Send batches of at most MaxSamplesPerSend samples to the remote storage.
// If we have fewer samples than that, flush them out after a deadline anyways.
@ -1426,12 +1522,15 @@ func (s *shards) runShard(ctx context.Context, shardID int, queue *queue) {
max = s.qm.cfg.MaxSamplesPerSend
pBuf = proto.NewBuffer(nil)
pBufRaw []byte
buf []byte
)
// TODO(@tpaschalis) Should we also raise the max if we have WAL metadata?
if s.qm.sendExemplars {
max += int(float64(max) * 0.1)
}
// TODO: Dry all of this, we should make an interface/generic for the timeseries type.
batchQueue := queue.Chan()
pendingData := make([]prompb.TimeSeries, max)
for i := range pendingData {
@ -1440,6 +1539,10 @@ func (s *shards) runShard(ctx context.Context, shardID int, queue *queue) {
pendingData[i].Exemplars = []prompb.Exemplar{{}}
}
}
pendingDataV2 := make([]writev2.TimeSeries, max)
for i := range pendingDataV2 {
pendingDataV2[i].Samples = []writev2.Sample{{}}
}
timer := time.NewTimer(time.Duration(s.qm.cfg.BatchSendDeadline))
stop := func() {
@ -1452,6 +1555,24 @@ func (s *shards) runShard(ctx context.Context, shardID int, queue *queue) {
}
defer stop()
sendBatch := func(batch []timeSeries, protoMsg config.RemoteWriteProtoMsg, enc Compression, timer bool) {
switch protoMsg {
case config.RemoteWriteProtoMsgV1:
nPendingSamples, nPendingExemplars, nPendingHistograms := populateTimeSeries(batch, pendingData, s.qm.sendExemplars, s.qm.sendNativeHistograms)
n := nPendingSamples + nPendingExemplars + nPendingHistograms
if timer {
level.Debug(s.qm.logger).Log("msg", "runShard timer ticked, sending buffered data", "samples", nPendingSamples,
"exemplars", nPendingExemplars, "shard", shardNum, "histograms", nPendingHistograms)
}
_ = s.sendSamples(ctx, pendingData[:n], nPendingSamples, nPendingExemplars, nPendingHistograms, pBuf, &buf, enc)
case config.RemoteWriteProtoMsgV2:
nPendingSamples, nPendingExemplars, nPendingHistograms, nPendingMetadata := populateV2TimeSeries(&symbolTable, batch, pendingDataV2, s.qm.sendExemplars, s.qm.sendNativeHistograms)
n := nPendingSamples + nPendingExemplars + nPendingHistograms
_ = s.sendV2Samples(ctx, pendingDataV2[:n], symbolTable.Symbols(), nPendingSamples, nPendingExemplars, nPendingHistograms, nPendingMetadata, &pBufRaw, &buf, enc)
symbolTable.Reset()
}
}
for {
select {
case <-ctx.Done():
@ -1475,10 +1596,11 @@ func (s *shards) runShard(ctx context.Context, shardID int, queue *queue) {
if !ok {
return
}
nPendingSamples, nPendingExemplars, nPendingHistograms := s.populateTimeSeries(batch, pendingData)
sendBatch(batch, s.qm.protoMsg, s.qm.enc, false)
// TODO(bwplotka): Previously the return was between popular and send.
// Consider this when DRY-ing https://github.com/prometheus/prometheus/issues/14409
queue.ReturnForReuse(batch)
n := nPendingSamples + nPendingExemplars + nPendingHistograms
s.sendSamples(ctx, pendingData[:n], nPendingSamples, nPendingExemplars, nPendingHistograms, pBuf, &buf)
stop()
timer.Reset(time.Duration(s.qm.cfg.BatchSendDeadline))
@ -1486,11 +1608,7 @@ func (s *shards) runShard(ctx context.Context, shardID int, queue *queue) {
case <-timer.C:
batch := queue.Batch()
if len(batch) > 0 {
nPendingSamples, nPendingExemplars, nPendingHistograms := s.populateTimeSeries(batch, pendingData)
n := nPendingSamples + nPendingExemplars + nPendingHistograms
level.Debug(s.qm.logger).Log("msg", "runShard timer ticked, sending buffered data", "samples", nPendingSamples,
"exemplars", nPendingExemplars, "shard", shardNum, "histograms", nPendingHistograms)
s.sendSamples(ctx, pendingData[:n], nPendingSamples, nPendingExemplars, nPendingHistograms, pBuf, &buf)
sendBatch(batch, s.qm.protoMsg, s.qm.enc, true)
}
queue.ReturnForReuse(batch)
timer.Reset(time.Duration(s.qm.cfg.BatchSendDeadline))
@ -1498,21 +1616,22 @@ func (s *shards) runShard(ctx context.Context, shardID int, queue *queue) {
}
}
func (s *shards) populateTimeSeries(batch []timeSeries, pendingData []prompb.TimeSeries) (int, int, int) {
func populateTimeSeries(batch []timeSeries, pendingData []prompb.TimeSeries, sendExemplars, sendNativeHistograms bool) (int, int, int) {
var nPendingSamples, nPendingExemplars, nPendingHistograms int
for nPending, d := range batch {
pendingData[nPending].Samples = pendingData[nPending].Samples[:0]
if s.qm.sendExemplars {
if sendExemplars {
pendingData[nPending].Exemplars = pendingData[nPending].Exemplars[:0]
}
if s.qm.sendNativeHistograms {
if sendNativeHistograms {
pendingData[nPending].Histograms = pendingData[nPending].Histograms[:0]
}
// Number of pending samples is limited by the fact that sendSamples (via sendSamplesWithBackoff)
// retries endlessly, so once we reach max samples, if we can never send to the endpoint we'll
// stop reading from the queue. This makes it safe to reference pendingSamples by index.
pendingData[nPending].Labels = LabelsToLabelsProto(d.seriesLabels, pendingData[nPending].Labels)
pendingData[nPending].Labels = prompb.FromLabels(d.seriesLabels, pendingData[nPending].Labels)
switch d.sType {
case tSample:
pendingData[nPending].Samples = append(pendingData[nPending].Samples, prompb.Sample{
@ -1522,25 +1641,39 @@ func (s *shards) populateTimeSeries(batch []timeSeries, pendingData []prompb.Tim
nPendingSamples++
case tExemplar:
pendingData[nPending].Exemplars = append(pendingData[nPending].Exemplars, prompb.Exemplar{
Labels: LabelsToLabelsProto(d.exemplarLabels, nil),
Labels: prompb.FromLabels(d.exemplarLabels, nil),
Value: d.value,
Timestamp: d.timestamp,
})
nPendingExemplars++
case tHistogram:
pendingData[nPending].Histograms = append(pendingData[nPending].Histograms, HistogramToHistogramProto(d.timestamp, d.histogram))
pendingData[nPending].Histograms = append(pendingData[nPending].Histograms, prompb.FromIntHistogram(d.timestamp, d.histogram))
nPendingHistograms++
case tFloatHistogram:
pendingData[nPending].Histograms = append(pendingData[nPending].Histograms, FloatHistogramToHistogramProto(d.timestamp, d.floatHistogram))
pendingData[nPending].Histograms = append(pendingData[nPending].Histograms, prompb.FromFloatHistogram(d.timestamp, d.floatHistogram))
nPendingHistograms++
}
}
return nPendingSamples, nPendingExemplars, nPendingHistograms
}
func (s *shards) sendSamples(ctx context.Context, samples []prompb.TimeSeries, sampleCount, exemplarCount, histogramCount int, pBuf *proto.Buffer, buf *[]byte) {
func (s *shards) sendSamples(ctx context.Context, samples []prompb.TimeSeries, sampleCount, exemplarCount, histogramCount int, pBuf *proto.Buffer, buf *[]byte, enc Compression) error {
begin := time.Now()
err := s.sendSamplesWithBackoff(ctx, samples, sampleCount, exemplarCount, histogramCount, 0, pBuf, buf, enc)
s.updateMetrics(ctx, err, sampleCount, exemplarCount, histogramCount, 0, time.Since(begin))
return err
}
// TODO(bwplotka): DRY this (have one logic for both v1 and v2).
// See https://github.com/prometheus/prometheus/issues/14409
func (s *shards) sendV2Samples(ctx context.Context, samples []writev2.TimeSeries, labels []string, sampleCount, exemplarCount, histogramCount, metadataCount int, pBuf, buf *[]byte, enc Compression) error {
begin := time.Now()
err := s.sendSamplesWithBackoff(ctx, samples, sampleCount, exemplarCount, histogramCount, pBuf, buf)
err := s.sendV2SamplesWithBackoff(ctx, samples, labels, sampleCount, exemplarCount, histogramCount, metadataCount, pBuf, buf, enc)
s.updateMetrics(ctx, err, sampleCount, exemplarCount, histogramCount, metadataCount, time.Since(begin))
return err
}
func (s *shards) updateMetrics(_ context.Context, err error, sampleCount, exemplarCount, histogramCount, metadataCount int, duration time.Duration) {
if err != nil {
level.Error(s.qm.logger).Log("msg", "non-recoverable error", "count", sampleCount, "exemplarCount", exemplarCount, "histogramCount", histogramCount, "err", err)
s.qm.metrics.failedSamplesTotal.Add(float64(sampleCount))
@ -1550,8 +1683,8 @@ func (s *shards) sendSamples(ctx context.Context, samples []prompb.TimeSeries, s
// These counters are used to calculate the dynamic sharding, and as such
// should be maintained irrespective of success or failure.
s.qm.dataOut.incr(int64(len(samples)))
s.qm.dataOutDuration.incr(int64(time.Since(begin)))
s.qm.dataOut.incr(int64(sampleCount + exemplarCount + histogramCount + metadataCount))
s.qm.dataOutDuration.incr(int64(duration))
s.qm.lastSendTimestamp.Store(time.Now().Unix())
// Pending samples/exemplars/histograms also should be subtracted, as an error means
// they will not be retried.
@ -1564,9 +1697,9 @@ func (s *shards) sendSamples(ctx context.Context, samples []prompb.TimeSeries, s
}
// sendSamples to the remote storage with backoff for recoverable errors.
func (s *shards) sendSamplesWithBackoff(ctx context.Context, samples []prompb.TimeSeries, sampleCount, exemplarCount, histogramCount int, pBuf *proto.Buffer, buf *[]byte) error {
func (s *shards) sendSamplesWithBackoff(ctx context.Context, samples []prompb.TimeSeries, sampleCount, exemplarCount, histogramCount, metadataCount int, pBuf *proto.Buffer, buf *[]byte, enc Compression) error {
// Build the WriteRequest with no metadata.
req, highest, lowest, err := buildWriteRequest(s.qm.logger, samples, nil, pBuf, *buf, nil)
req, highest, lowest, err := buildWriteRequest(s.qm.logger, samples, nil, pBuf, buf, nil, enc)
s.qm.buildRequestLimitTimestamp.Store(lowest)
if err != nil {
// Failing to build the write request is non-recoverable, since it will
@ -1590,8 +1723,100 @@ func (s *shards) sendSamplesWithBackoff(ctx context.Context, samples []prompb.Ti
samples,
nil,
pBuf,
*buf,
buf,
isTimeSeriesOldFilter(s.qm.metrics, currentTime, time.Duration(s.qm.cfg.SampleAgeLimit)),
enc,
)
s.qm.buildRequestLimitTimestamp.Store(lowest)
if err != nil {
return err
}
*buf = req
}
ctx, span := otel.Tracer("").Start(ctx, "Remote Send Batch")
defer span.End()
span.SetAttributes(
attribute.Int("request_size", reqSize),
attribute.Int("samples", sampleCount),
attribute.Int("try", try),
attribute.String("remote_name", s.qm.storeClient.Name()),
attribute.String("remote_url", s.qm.storeClient.Endpoint()),
)
if exemplarCount > 0 {
span.SetAttributes(attribute.Int("exemplars", exemplarCount))
}
if histogramCount > 0 {
span.SetAttributes(attribute.Int("histograms", histogramCount))
}
begin := time.Now()
s.qm.metrics.samplesTotal.Add(float64(sampleCount))
s.qm.metrics.exemplarsTotal.Add(float64(exemplarCount))
s.qm.metrics.histogramsTotal.Add(float64(histogramCount))
s.qm.metrics.metadataTotal.Add(float64(metadataCount))
err := s.qm.client().Store(ctx, *buf, try)
s.qm.metrics.sentBatchDuration.Observe(time.Since(begin).Seconds())
if err != nil {
span.RecordError(err)
return err
}
return nil
}
onRetry := func() {
s.qm.metrics.retriedSamplesTotal.Add(float64(sampleCount))
s.qm.metrics.retriedExemplarsTotal.Add(float64(exemplarCount))
s.qm.metrics.retriedHistogramsTotal.Add(float64(histogramCount))
}
err = s.qm.sendWriteRequestWithBackoff(ctx, attemptStore, onRetry)
if errors.Is(err, context.Canceled) {
// When there is resharding, we cancel the context for this queue, which means the data is not sent.
// So we exit early to not update the metrics.
return err
}
s.qm.metrics.sentBytesTotal.Add(float64(reqSize))
s.qm.metrics.highestSentTimestamp.Set(float64(highest / 1000))
return err
}
// sendV2Samples to the remote storage with backoff for recoverable errors.
func (s *shards) sendV2SamplesWithBackoff(ctx context.Context, samples []writev2.TimeSeries, labels []string, sampleCount, exemplarCount, histogramCount, metadataCount int, pBuf, buf *[]byte, enc Compression) error {
// Build the WriteRequest with no metadata.
req, highest, lowest, err := buildV2WriteRequest(s.qm.logger, samples, labels, pBuf, buf, nil, enc)
s.qm.buildRequestLimitTimestamp.Store(lowest)
if err != nil {
// Failing to build the write request is non-recoverable, since it will
// only error if marshaling the proto to bytes fails.
return err
}
reqSize := len(req)
*buf = req
// An anonymous function allows us to defer the completion of our per-try spans
// without causing a memory leak, and it has the nice effect of not propagating any
// parameters for sendSamplesWithBackoff/3.
attemptStore := func(try int) error {
currentTime := time.Now()
lowest := s.qm.buildRequestLimitTimestamp.Load()
if isSampleOld(currentTime, time.Duration(s.qm.cfg.SampleAgeLimit), lowest) {
// This will filter out old samples during retries.
req, _, lowest, err := buildV2WriteRequest(
s.qm.logger,
samples,
labels,
pBuf,
buf,
isV2TimeSeriesOldFilter(s.qm.metrics, currentTime, time.Duration(s.qm.cfg.SampleAgeLimit)),
enc,
)
s.qm.buildRequestLimitTimestamp.Store(lowest)
if err != nil {
@ -1622,6 +1847,7 @@ func (s *shards) sendSamplesWithBackoff(ctx context.Context, samples []prompb.Ti
s.qm.metrics.samplesTotal.Add(float64(sampleCount))
s.qm.metrics.exemplarsTotal.Add(float64(exemplarCount))
s.qm.metrics.histogramsTotal.Add(float64(histogramCount))
s.qm.metrics.metadataTotal.Add(float64(metadataCount))
err := s.qm.client().Store(ctx, *buf, try)
s.qm.metrics.sentBatchDuration.Observe(time.Since(begin).Seconds())
@ -1652,6 +1878,57 @@ func (s *shards) sendSamplesWithBackoff(ctx context.Context, samples []prompb.Ti
return err
}
func populateV2TimeSeries(symbolTable *writev2.SymbolsTable, batch []timeSeries, pendingData []writev2.TimeSeries, sendExemplars, sendNativeHistograms bool) (int, int, int, int) {
var nPendingSamples, nPendingExemplars, nPendingHistograms, nPendingMetadata int
for nPending, d := range batch {
pendingData[nPending].Samples = pendingData[nPending].Samples[:0]
// todo: should we also safeguard against empty metadata here?
if d.metadata != nil {
pendingData[nPending].Metadata.Type = writev2.FromMetadataType(d.metadata.Type)
pendingData[nPending].Metadata.HelpRef = symbolTable.Symbolize(d.metadata.Help)
pendingData[nPending].Metadata.HelpRef = symbolTable.Symbolize(d.metadata.Unit)
nPendingMetadata++
}
if sendExemplars {
pendingData[nPending].Exemplars = pendingData[nPending].Exemplars[:0]
}
if sendNativeHistograms {
pendingData[nPending].Histograms = pendingData[nPending].Histograms[:0]
}
// Number of pending samples is limited by the fact that sendSamples (via sendSamplesWithBackoff)
// retries endlessly, so once we reach max samples, if we can never send to the endpoint we'll
// stop reading from the queue. This makes it safe to reference pendingSamples by index.
pendingData[nPending].LabelsRefs = symbolTable.SymbolizeLabels(d.seriesLabels, pendingData[nPending].LabelsRefs)
switch d.sType {
case tSample:
pendingData[nPending].Samples = append(pendingData[nPending].Samples, writev2.Sample{
Value: d.value,
Timestamp: d.timestamp,
})
nPendingSamples++
case tExemplar:
pendingData[nPending].Exemplars = append(pendingData[nPending].Exemplars, writev2.Exemplar{
LabelsRefs: symbolTable.SymbolizeLabels(d.exemplarLabels, nil), // TODO: optimize, reuse slice
Value: d.value,
Timestamp: d.timestamp,
})
nPendingExemplars++
case tHistogram:
pendingData[nPending].Histograms = append(pendingData[nPending].Histograms, writev2.FromIntHistogram(d.timestamp, d.histogram))
nPendingHistograms++
case tFloatHistogram:
pendingData[nPending].Histograms = append(pendingData[nPending].Histograms, writev2.FromFloatHistogram(d.timestamp, d.floatHistogram))
nPendingHistograms++
case tMetadata:
// TODO: log or return an error?
// we shouldn't receive metadata type data here, it should already be inserted into the timeSeries
}
}
return nPendingSamples, nPendingExemplars, nPendingHistograms, nPendingMetadata
}
func (t *QueueManager) sendWriteRequestWithBackoff(ctx context.Context, attempt func(int) error, onRetry func()) error {
backoff := t.cfg.MinBackoff
sleepDuration := model.Duration(0)
@ -1795,7 +2072,21 @@ func buildTimeSeries(timeSeries []prompb.TimeSeries, filter func(prompb.TimeSeri
return highest, lowest, timeSeries, droppedSamples, droppedExemplars, droppedHistograms
}
func buildWriteRequest(logger log.Logger, timeSeries []prompb.TimeSeries, metadata []prompb.MetricMetadata, pBuf *proto.Buffer, buf []byte, filter func(prompb.TimeSeries) bool) ([]byte, int64, int64, error) {
func compressPayload(tmpbuf *[]byte, inp []byte, enc Compression) (compressed []byte, _ error) {
switch enc {
case SnappyBlockCompression:
compressed = snappy.Encode(*tmpbuf, inp)
if n := snappy.MaxEncodedLen(len(inp)); n > len(*tmpbuf) {
// grow the buffer for the next time
*tmpbuf = make([]byte, n)
}
return compressed, nil
default:
return compressed, fmt.Errorf("Unknown compression scheme [%v]", enc)
}
}
func buildWriteRequest(logger log.Logger, timeSeries []prompb.TimeSeries, metadata []prompb.MetricMetadata, pBuf *proto.Buffer, buf *[]byte, filter func(prompb.TimeSeries) bool, enc Compression) (compressed []byte, highest, lowest int64, _ error) {
highest, lowest, timeSeries,
droppedSamples, droppedExemplars, droppedHistograms := buildTimeSeries(timeSeries, filter)
@ -1821,8 +2112,105 @@ func buildWriteRequest(logger log.Logger, timeSeries []prompb.TimeSeries, metada
// snappy uses len() to see if it needs to allocate a new slice. Make the
// buffer as long as possible.
if buf != nil {
buf = buf[0:cap(buf)]
*buf = (*buf)[0:cap(*buf)]
} else {
buf = &[]byte{}
}
compressed, err = compressPayload(buf, pBuf.Bytes(), enc)
if err != nil {
return nil, highest, lowest, err
}
return compressed, highest, lowest, nil
}
func buildV2WriteRequest(logger log.Logger, samples []writev2.TimeSeries, labels []string, pBuf, buf *[]byte, filter func(writev2.TimeSeries) bool, enc Compression) (compressed []byte, highest, lowest int64, _ error) {
highest, lowest, timeSeries, droppedSamples, droppedExemplars, droppedHistograms := buildV2TimeSeries(samples, filter)
if droppedSamples > 0 || droppedExemplars > 0 || droppedHistograms > 0 {
level.Debug(logger).Log("msg", "dropped data due to their age", "droppedSamples", droppedSamples, "droppedExemplars", droppedExemplars, "droppedHistograms", droppedHistograms)
}
req := &writev2.Request{
Symbols: labels,
Timeseries: timeSeries,
}
if pBuf == nil {
pBuf = &[]byte{} // For convenience in tests. Not efficient.
}
data, err := req.OptimizedMarshal(*pBuf)
if err != nil {
return nil, highest, lowest, err
}
*pBuf = data
// snappy uses len() to see if it needs to allocate a new slice. Make the
// buffer as long as possible.
if buf != nil {
*buf = (*buf)[0:cap(*buf)]
} else {
buf = &[]byte{}
}
compressed, err = compressPayload(buf, data, enc)
if err != nil {
return nil, highest, lowest, err
}
compressed := snappy.Encode(buf, pBuf.Bytes())
return compressed, highest, lowest, nil
}
func buildV2TimeSeries(timeSeries []writev2.TimeSeries, filter func(writev2.TimeSeries) bool) (int64, int64, []writev2.TimeSeries, int, int, int) {
var highest int64
var lowest int64
var droppedSamples, droppedExemplars, droppedHistograms int
keepIdx := 0
lowest = math.MaxInt64
for i, ts := range timeSeries {
if filter != nil && filter(ts) {
if len(ts.Samples) > 0 {
droppedSamples++
}
if len(ts.Exemplars) > 0 {
droppedExemplars++
}
if len(ts.Histograms) > 0 {
droppedHistograms++
}
continue
}
// At the moment we only ever append a TimeSeries with a single sample or exemplar in it.
if len(ts.Samples) > 0 && ts.Samples[0].Timestamp > highest {
highest = ts.Samples[0].Timestamp
}
if len(ts.Exemplars) > 0 && ts.Exemplars[0].Timestamp > highest {
highest = ts.Exemplars[0].Timestamp
}
if len(ts.Histograms) > 0 && ts.Histograms[0].Timestamp > highest {
highest = ts.Histograms[0].Timestamp
}
// Get the lowest timestamp.
if len(ts.Samples) > 0 && ts.Samples[0].Timestamp < lowest {
lowest = ts.Samples[0].Timestamp
}
if len(ts.Exemplars) > 0 && ts.Exemplars[0].Timestamp < lowest {
lowest = ts.Exemplars[0].Timestamp
}
if len(ts.Histograms) > 0 && ts.Histograms[0].Timestamp < lowest {
lowest = ts.Histograms[0].Timestamp
}
if i != keepIdx {
// We have to swap the kept timeseries with the one which should be dropped.
// Copying any elements within timeSeries could cause data corruptions when reusing the slice in a next batch (shards.populateTimeSeries).
timeSeries[keepIdx], timeSeries[i] = timeSeries[i], timeSeries[keepIdx]
}
keepIdx++
}
timeSeries = timeSeries[:keepIdx]
return highest, lowest, timeSeries, droppedSamples, droppedExemplars, droppedHistograms
}

File diff suppressed because it is too large Load Diff

@ -124,7 +124,7 @@ func TestSampledReadEndpoint(t *testing.T) {
{Name: "d", Value: "e"},
},
Histograms: []prompb.Histogram{
FloatHistogramToHistogramProto(0, tsdbutil.GenerateTestFloatHistogram(0)),
prompb.FromFloatHistogram(0, tsdbutil.GenerateTestFloatHistogram(0)),
},
},
},

@ -92,7 +92,7 @@ func TestNoDuplicateReadConfigs(t *testing.T) {
for _, tc := range cases {
t.Run("", func(t *testing.T) {
s := NewStorage(nil, nil, nil, dir, defaultFlushDeadline, nil)
s := NewStorage(nil, nil, nil, dir, defaultFlushDeadline, nil, false)
conf := &config.Config{
GlobalConfig: config.DefaultGlobalConfig,
RemoteReadConfigs: tc.cfgs,
@ -172,12 +172,12 @@ func TestSeriesSetFilter(t *testing.T) {
toRemove: []string{"foo"},
in: &prompb.QueryResult{
Timeseries: []*prompb.TimeSeries{
{Labels: LabelsToLabelsProto(labels.FromStrings("foo", "bar", "a", "b"), nil)},
{Labels: prompb.FromLabels(labels.FromStrings("foo", "bar", "a", "b"), nil)},
},
},
expected: &prompb.QueryResult{
Timeseries: []*prompb.TimeSeries{
{Labels: LabelsToLabelsProto(labels.FromStrings("a", "b"), nil)},
{Labels: prompb.FromLabels(labels.FromStrings("a", "b"), nil)},
},
},
},
@ -211,7 +211,7 @@ func (c *mockedRemoteClient) Read(_ context.Context, query *prompb.Query) (*prom
q := &prompb.QueryResult{}
for _, s := range c.store {
l := LabelProtosToLabels(&c.b, s.Labels)
l := s.ToLabels(&c.b, nil)
var notMatch bool
for _, m := range matchers {

@ -62,7 +62,7 @@ type Storage struct {
}
// NewStorage returns a remote.Storage.
func NewStorage(l log.Logger, reg prometheus.Registerer, stCallback startTimeCallback, walDir string, flushDeadline time.Duration, sm ReadyScrapeManager) *Storage {
func NewStorage(l log.Logger, reg prometheus.Registerer, stCallback startTimeCallback, walDir string, flushDeadline time.Duration, sm ReadyScrapeManager, metadataInWAL bool) *Storage {
if l == nil {
l = log.NewNopLogger()
}
@ -72,7 +72,7 @@ func NewStorage(l log.Logger, reg prometheus.Registerer, stCallback startTimeCal
logger: logger,
localStartTimeCallback: stCallback,
}
s.rws = NewWriteStorage(s.logger, reg, walDir, flushDeadline, sm)
s.rws = NewWriteStorage(s.logger, reg, walDir, flushDeadline, sm, metadataInWAL)
return s
}

@ -29,7 +29,7 @@ import (
func TestStorageLifecycle(t *testing.T) {
dir := t.TempDir()
s := NewStorage(nil, nil, nil, dir, defaultFlushDeadline, nil)
s := NewStorage(nil, nil, nil, dir, defaultFlushDeadline, nil, false)
conf := &config.Config{
GlobalConfig: config.DefaultGlobalConfig,
RemoteWriteConfigs: []*config.RemoteWriteConfig{
@ -56,7 +56,7 @@ func TestStorageLifecycle(t *testing.T) {
func TestUpdateRemoteReadConfigs(t *testing.T) {
dir := t.TempDir()
s := NewStorage(nil, nil, nil, dir, defaultFlushDeadline, nil)
s := NewStorage(nil, nil, nil, dir, defaultFlushDeadline, nil, false)
conf := &config.Config{
GlobalConfig: config.GlobalConfig{},
@ -77,7 +77,7 @@ func TestUpdateRemoteReadConfigs(t *testing.T) {
func TestFilterExternalLabels(t *testing.T) {
dir := t.TempDir()
s := NewStorage(nil, nil, nil, dir, defaultFlushDeadline, nil)
s := NewStorage(nil, nil, nil, dir, defaultFlushDeadline, nil, false)
conf := &config.Config{
GlobalConfig: config.GlobalConfig{
@ -102,7 +102,7 @@ func TestFilterExternalLabels(t *testing.T) {
func TestIgnoreExternalLabels(t *testing.T) {
dir := t.TempDir()
s := NewStorage(nil, nil, nil, dir, defaultFlushDeadline, nil)
s := NewStorage(nil, nil, nil, dir, defaultFlushDeadline, nil, false)
conf := &config.Config{
GlobalConfig: config.GlobalConfig{
@ -154,7 +154,7 @@ func baseRemoteReadConfig(host string) *config.RemoteReadConfig {
// ApplyConfig runs concurrently with Notify
// See https://github.com/prometheus/prometheus/issues/12747
func TestWriteStorageApplyConfigsDuringCommit(t *testing.T) {
s := NewStorage(nil, nil, nil, t.TempDir(), defaultFlushDeadline, nil)
s := NewStorage(nil, nil, nil, t.TempDir(), defaultFlushDeadline, nil, false)
var wg sync.WaitGroup
wg.Add(2000)

@ -15,6 +15,7 @@ package remote
import (
"context"
"errors"
"fmt"
"math"
"sync"
@ -65,6 +66,7 @@ type WriteStorage struct {
externalLabels labels.Labels
dir string
queues map[string]*QueueManager
metadataInWAL bool
samplesIn *ewmaRate
flushDeadline time.Duration
interner *pool
@ -76,7 +78,7 @@ type WriteStorage struct {
}
// NewWriteStorage creates and runs a WriteStorage.
func NewWriteStorage(logger log.Logger, reg prometheus.Registerer, dir string, flushDeadline time.Duration, sm ReadyScrapeManager) *WriteStorage {
func NewWriteStorage(logger log.Logger, reg prometheus.Registerer, dir string, flushDeadline time.Duration, sm ReadyScrapeManager, metadataInWal bool) *WriteStorage {
if logger == nil {
logger = log.NewNopLogger()
}
@ -92,6 +94,7 @@ func NewWriteStorage(logger log.Logger, reg prometheus.Registerer, dir string, f
interner: newPool(),
scraper: sm,
quit: make(chan struct{}),
metadataInWAL: metadataInWal,
highestTimestamp: &maxTimestamp{
Gauge: prometheus.NewGauge(prometheus.GaugeOpts{
Namespace: namespace,
@ -145,6 +148,9 @@ func (rws *WriteStorage) ApplyConfig(conf *config.Config) error {
newQueues := make(map[string]*QueueManager)
newHashes := []string{}
for _, rwConf := range conf.RemoteWriteConfigs {
if rwConf.ProtobufMessage == config.RemoteWriteProtoMsgV2 && !rws.metadataInWAL {
return errors.New("invalid remote write configuration, if you are using remote write version 2.0 the `--enable-feature=metadata-wal-records` feature flag must be enabled")
}
hash, err := toHash(rwConf)
if err != nil {
return err
@ -165,6 +171,7 @@ func (rws *WriteStorage) ApplyConfig(conf *config.Config) error {
c, err := NewWriteClient(name, &ClientConfig{
URL: rwConf.URL,
WriteProtoMsg: rwConf.ProtobufMessage,
Timeout: rwConf.RemoteTimeout,
HTTPClientConfig: rwConf.HTTPClientConfig,
SigV4Config: rwConf.SigV4Config,
@ -207,6 +214,7 @@ func (rws *WriteStorage) ApplyConfig(conf *config.Config) error {
rws.scraper,
rwConf.SendExemplars,
rwConf.SendNativeHistograms,
rwConf.ProtobufMessage,
)
// Keep track of which queues are new so we know which to start.
newHashes = append(newHashes, hash)

@ -17,19 +17,24 @@ import (
"context"
"errors"
"fmt"
"io"
"net/http"
"strings"
"time"
"github.com/go-kit/log"
"github.com/go-kit/log/level"
"github.com/gogo/protobuf/proto"
"github.com/golang/snappy"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/prometheus/config"
"github.com/prometheus/prometheus/model/exemplar"
"github.com/prometheus/prometheus/model/histogram"
"github.com/prometheus/prometheus/model/labels"
"github.com/prometheus/prometheus/model/timestamp"
"github.com/prometheus/prometheus/prompb"
writev2 "github.com/prometheus/prometheus/prompb/io/prometheus/write/v2"
"github.com/prometheus/prometheus/storage"
otlptranslator "github.com/prometheus/prometheus/storage/remote/otlptranslator/prometheusremotewrite"
)
@ -39,17 +44,23 @@ type writeHandler struct {
appendable storage.Appendable
samplesWithInvalidLabelsTotal prometheus.Counter
acceptedProtoMsgs map[config.RemoteWriteProtoMsg]struct{}
}
const maxAheadTime = 10 * time.Minute
// NewWriteHandler creates a http.Handler that accepts remote write requests and
// writes them to the provided appendable.
func NewWriteHandler(logger log.Logger, reg prometheus.Registerer, appendable storage.Appendable) http.Handler {
// NewWriteHandler creates a http.Handler that accepts remote write requests with
// the given message in acceptedProtoMsgs and writes them to the provided appendable.
func NewWriteHandler(logger log.Logger, reg prometheus.Registerer, appendable storage.Appendable, acceptedProtoMsgs []config.RemoteWriteProtoMsg) http.Handler {
protoMsgs := map[config.RemoteWriteProtoMsg]struct{}{}
for _, acc := range acceptedProtoMsgs {
protoMsgs[acc] = struct{}{}
}
h := &writeHandler{
logger: logger,
appendable: appendable,
acceptedProtoMsgs: protoMsgs,
samplesWithInvalidLabelsTotal: prometheus.NewCounter(prometheus.CounterOpts{
Namespace: "prometheus",
Subsystem: "api",
@ -63,15 +74,107 @@ func NewWriteHandler(logger log.Logger, reg prometheus.Registerer, appendable st
return h
}
func (h *writeHandler) parseProtoMsg(contentType string) (config.RemoteWriteProtoMsg, error) {
contentType = strings.TrimSpace(contentType)
parts := strings.Split(contentType, ";")
if parts[0] != appProtoContentType {
return "", fmt.Errorf("expected %v as the first (media) part, got %v content-type", appProtoContentType, contentType)
}
// Parse potential https://www.rfc-editor.org/rfc/rfc9110#parameter
for _, p := range parts[1:] {
pair := strings.Split(p, "=")
if len(pair) != 2 {
return "", fmt.Errorf("as per https://www.rfc-editor.org/rfc/rfc9110#parameter expected parameters to be key-values, got %v in %v content-type", p, contentType)
}
if pair[0] == "proto" {
ret := config.RemoteWriteProtoMsg(pair[1])
if err := ret.Validate(); err != nil {
return "", fmt.Errorf("got %v content type; %w", contentType, err)
}
return ret, nil
}
}
// No "proto=" parameter, assuming v1.
return config.RemoteWriteProtoMsgV1, nil
}
func (h *writeHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
req, err := DecodeWriteRequest(r.Body)
contentType := r.Header.Get("Content-Type")
if contentType == "" {
// Don't break yolo 1.0 clients if not needed. This is similar to what we did
// before 2.0: https://github.com/prometheus/prometheus/blob/d78253319daa62c8f28ed47e40bafcad2dd8b586/storage/remote/write_handler.go#L62
// We could give http.StatusUnsupportedMediaType, but let's assume 1.0 message by default.
contentType = appProtoContentType
}
msg, err := h.parseProtoMsg(contentType)
if err != nil {
level.Error(h.logger).Log("msg", "Error decoding remote write request", "err", err)
http.Error(w, err.Error(), http.StatusUnsupportedMediaType)
return
}
if _, ok := h.acceptedProtoMsgs[msg]; !ok {
err := fmt.Errorf("%v protobuf message is not accepted by this server; accepted %v", msg, func() (ret []string) {
for k := range h.acceptedProtoMsgs {
ret = append(ret, string(k))
}
return ret
}())
level.Error(h.logger).Log("msg", "Error decoding remote write request", "err", err)
http.Error(w, err.Error(), http.StatusUnsupportedMediaType)
}
enc := r.Header.Get("Content-Encoding")
if enc == "" {
// Don't break yolo 1.0 clients if not needed. This is similar to what we did
// before 2.0: https://github.com/prometheus/prometheus/blob/d78253319daa62c8f28ed47e40bafcad2dd8b586/storage/remote/write_handler.go#L62
// We could give http.StatusUnsupportedMediaType, but let's assume snappy by default.
} else if enc != string(SnappyBlockCompression) {
err := fmt.Errorf("%v encoding (compression) is not accepted by this server; only %v is acceptable", enc, SnappyBlockCompression)
level.Error(h.logger).Log("msg", "Error decoding remote write request", "err", err)
http.Error(w, err.Error(), http.StatusUnsupportedMediaType)
}
// Read the request body.
body, err := io.ReadAll(r.Body)
if err != nil {
level.Error(h.logger).Log("msg", "Error decoding remote write request", "err", err.Error())
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
err = h.write(r.Context(), req)
decompressed, err := snappy.Decode(nil, body)
if err != nil {
// TODO(bwplotka): Add more context to responded error?
level.Error(h.logger).Log("msg", "Error decompressing remote write request", "err", err.Error())
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
// Now we have a decompressed buffer we can unmarshal it.
switch msg {
case config.RemoteWriteProtoMsgV1:
var req prompb.WriteRequest
if err := proto.Unmarshal(decompressed, &req); err != nil {
// TODO(bwplotka): Add more context to responded error?
level.Error(h.logger).Log("msg", "Error decoding v1 remote write request", "protobuf_message", msg, "err", err.Error())
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
err = h.write(r.Context(), &req)
case config.RemoteWriteProtoMsgV2:
var req writev2.Request
if err := proto.Unmarshal(decompressed, &req); err != nil {
// TODO(bwplotka): Add more context to responded error?
level.Error(h.logger).Log("msg", "Error decoding v2 remote write request", "protobuf_message", msg, "err", err.Error())
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
err = h.writeV2(r.Context(), &req)
}
switch {
case err == nil:
case errors.Is(err, storage.ErrOutOfOrderSample), errors.Is(err, storage.ErrOutOfBounds), errors.Is(err, storage.ErrDuplicateSampleForTimestamp), errors.Is(err, storage.ErrTooOldSample):
@ -123,18 +226,102 @@ func (h *writeHandler) write(ctx context.Context, req *prompb.WriteRequest) (err
}()
b := labels.NewScratchBuilder(0)
var exemplarErr error
for _, ts := range req.Timeseries {
labels := LabelProtosToLabels(&b, ts.Labels)
if !labels.IsValid() {
level.Warn(h.logger).Log("msg", "Invalid metric names or labels", "got", labels.String())
ls := ts.ToLabels(&b, nil)
if !ls.IsValid() {
level.Warn(h.logger).Log("msg", "Invalid metric names or labels", "got", ls.String())
samplesWithInvalidLabels++
continue
}
err := h.appendSamples(timeLimitApp, ts.Samples, ls)
if err != nil {
return err
}
for _, ep := range ts.Exemplars {
e := ep.ToExemplar(&b, nil)
h.appendExemplar(timeLimitApp, e, ls, &outOfOrderExemplarErrs)
}
err = h.appendHistograms(timeLimitApp, ts.Histograms, ls)
if err != nil {
return err
}
}
if outOfOrderExemplarErrs > 0 {
_ = level.Warn(h.logger).Log("msg", "Error on ingesting out-of-order exemplars", "num_dropped", outOfOrderExemplarErrs)
}
if samplesWithInvalidLabels > 0 {
h.samplesWithInvalidLabelsTotal.Add(float64(samplesWithInvalidLabels))
}
return nil
}
func (h *writeHandler) writeV2(ctx context.Context, req *writev2.Request) (err error) {
outOfOrderExemplarErrs := 0
timeLimitApp := &timeLimitAppender{
Appender: h.appendable.Appender(ctx),
maxTime: timestamp.FromTime(time.Now().Add(maxAheadTime)),
}
defer func() {
if err != nil {
_ = timeLimitApp.Rollback()
return
}
err = timeLimitApp.Commit()
}()
b := labels.NewScratchBuilder(0)
for _, ts := range req.Timeseries {
ls := ts.ToLabels(&b, req.Symbols)
err := h.appendSamplesV2(timeLimitApp, ts.Samples, ls)
if err != nil {
return err
}
for _, ep := range ts.Exemplars {
e := ep.ToExemplar(&b, req.Symbols)
h.appendExemplar(timeLimitApp, e, ls, &outOfOrderExemplarErrs)
}
err = h.appendHistogramsV2(timeLimitApp, ts.Histograms, ls)
if err != nil {
return err
}
m := ts.ToMetadata(req.Symbols)
if _, err = timeLimitApp.UpdateMetadata(0, ls, m); err != nil {
level.Debug(h.logger).Log("msg", "error while updating metadata from remote write", "err", err)
}
}
if outOfOrderExemplarErrs > 0 {
_ = level.Warn(h.logger).Log("msg", "Error on ingesting out-of-order exemplars", "num_dropped", outOfOrderExemplarErrs)
}
return nil
}
func (h *writeHandler) appendExemplar(app storage.Appender, e exemplar.Exemplar, labels labels.Labels, outOfOrderExemplarErrs *int) {
_, err := app.AppendExemplar(0, labels, e)
err = h.checkAppendExemplarError(err, e, outOfOrderExemplarErrs)
if err != nil {
// Since exemplar storage is still experimental, we don't fail the request on ingestion errors
level.Debug(h.logger).Log("msg", "Error while adding exemplar in AddExemplar", "exemplar", fmt.Sprintf("%+v", e), "err", err)
}
}
func (h *writeHandler) appendSamples(app storage.Appender, ss []prompb.Sample, labels labels.Labels) error {
var ref storage.SeriesRef
for _, s := range ts.Samples {
ref, err = timeLimitApp.Append(ref, labels, s.Timestamp, s.Value)
var err error
for _, s := range ss {
ref, err = app.Append(ref, labels, s.GetTimestamp(), s.GetValue())
if err != nil {
unwrappedErr := errors.Unwrap(err)
if unwrappedErr == nil {
@ -146,27 +333,36 @@ func (h *writeHandler) write(ctx context.Context, req *prompb.WriteRequest) (err
return err
}
}
return nil
}
for _, ep := range ts.Exemplars {
e := exemplarProtoToExemplar(&b, ep)
_, exemplarErr = timeLimitApp.AppendExemplar(0, labels, e)
exemplarErr = h.checkAppendExemplarError(exemplarErr, e, &outOfOrderExemplarErrs)
if exemplarErr != nil {
// Since exemplar storage is still experimental, we don't fail the request on ingestion errors.
level.Debug(h.logger).Log("msg", "Error while adding exemplar in AddExemplar", "exemplar", fmt.Sprintf("%+v", e), "err", exemplarErr)
func (h *writeHandler) appendSamplesV2(app storage.Appender, ss []writev2.Sample, labels labels.Labels) error {
var ref storage.SeriesRef
var err error
for _, s := range ss {
ref, err = app.Append(ref, labels, s.GetTimestamp(), s.GetValue())
if err != nil {
unwrappedErr := errors.Unwrap(err)
if unwrappedErr == nil {
unwrappedErr = err
}
if errors.Is(err, storage.ErrOutOfOrderSample) || errors.Is(unwrappedErr, storage.ErrOutOfBounds) || errors.Is(unwrappedErr, storage.ErrDuplicateSampleForTimestamp) {
level.Error(h.logger).Log("msg", "Out of order sample from remote write", "err", err.Error(), "series", labels.String(), "timestamp", s.Timestamp)
}
return err
}
}
return nil
}
for _, hp := range ts.Histograms {
func (h *writeHandler) appendHistograms(app storage.Appender, hh []prompb.Histogram, labels labels.Labels) error {
var err error
for _, hp := range hh {
if hp.IsFloatHistogram() {
fhs := FloatHistogramProtoToFloatHistogram(hp)
_, err = timeLimitApp.AppendHistogram(0, labels, hp.Timestamp, nil, fhs)
_, err = app.AppendHistogram(0, labels, hp.Timestamp, nil, hp.ToFloatHistogram())
} else {
hs := HistogramProtoToHistogram(hp)
_, err = timeLimitApp.AppendHistogram(0, labels, hp.Timestamp, hs, nil)
_, err = app.AppendHistogram(0, labels, hp.Timestamp, hp.ToIntHistogram(), nil)
}
if err != nil {
unwrappedErr := errors.Unwrap(err)
if unwrappedErr == nil {
@ -180,15 +376,30 @@ func (h *writeHandler) write(ctx context.Context, req *prompb.WriteRequest) (err
return err
}
}
}
return nil
}
if outOfOrderExemplarErrs > 0 {
_ = level.Warn(h.logger).Log("msg", "Error on ingesting out-of-order exemplars", "num_dropped", outOfOrderExemplarErrs)
func (h *writeHandler) appendHistogramsV2(app storage.Appender, hh []writev2.Histogram, labels labels.Labels) error {
var err error
for _, hp := range hh {
if hp.IsFloatHistogram() {
_, err = app.AppendHistogram(0, labels, hp.Timestamp, nil, hp.ToFloatHistogram())
} else {
_, err = app.AppendHistogram(0, labels, hp.Timestamp, hp.ToIntHistogram(), nil)
}
if err != nil {
unwrappedErr := errors.Unwrap(err)
if unwrappedErr == nil {
unwrappedErr = err
}
// Although AppendHistogram does not currently return ErrDuplicateSampleForTimestamp there is
// a note indicating its inclusion in the future.
if errors.Is(unwrappedErr, storage.ErrOutOfOrderSample) || errors.Is(unwrappedErr, storage.ErrOutOfBounds) || errors.Is(unwrappedErr, storage.ErrDuplicateSampleForTimestamp) {
level.Error(h.logger).Log("msg", "Out of order histogram from remote write", "err", err.Error(), "series", labels.String(), "timestamp", hp.Timestamp)
}
return err
}
if samplesWithInvalidLabels > 0 {
h.samplesWithInvalidLabelsTotal.Add(float64(samplesWithInvalidLabels))
}
return nil
}

@ -30,25 +30,230 @@ import (
"github.com/google/go-cmp/cmp"
"github.com/stretchr/testify/require"
"github.com/prometheus/prometheus/config"
"github.com/prometheus/prometheus/model/exemplar"
"github.com/prometheus/prometheus/model/histogram"
"github.com/prometheus/prometheus/model/labels"
"github.com/prometheus/prometheus/model/metadata"
"github.com/prometheus/prometheus/prompb"
writev2 "github.com/prometheus/prometheus/prompb/io/prometheus/write/v2"
"github.com/prometheus/prometheus/storage"
"github.com/prometheus/prometheus/tsdb"
"github.com/prometheus/prometheus/util/testutil"
)
func TestRemoteWriteHandler(t *testing.T) {
buf, _, _, err := buildWriteRequest(nil, writeRequestFixture.Timeseries, nil, nil, nil, nil)
func TestRemoteWriteHandlerHeadersHandling_V1Message(t *testing.T) {
payload, _, _, err := buildWriteRequest(nil, writeRequestFixture.Timeseries, nil, nil, nil, nil, "snappy")
require.NoError(t, err)
req, err := http.NewRequest("", "", bytes.NewReader(buf))
for _, tc := range []struct {
name string
reqHeaders map[string]string
expectedCode int
}{
// Generally Prometheus 1.0 Receiver never checked for existence of the headers, so
// we keep things permissive.
{
name: "correct PRW 1.0 headers",
reqHeaders: map[string]string{
"Content-Type": remoteWriteContentTypeHeaders[config.RemoteWriteProtoMsgV1],
"Content-Encoding": string(SnappyBlockCompression),
RemoteWriteVersionHeader: RemoteWriteVersion20HeaderValue,
},
expectedCode: http.StatusNoContent,
},
{
name: "missing remote write version",
reqHeaders: map[string]string{
"Content-Type": remoteWriteContentTypeHeaders[config.RemoteWriteProtoMsgV1],
"Content-Encoding": string(SnappyBlockCompression),
},
expectedCode: http.StatusNoContent,
},
{
name: "no headers",
reqHeaders: map[string]string{},
expectedCode: http.StatusNoContent,
},
{
name: "missing content-type",
reqHeaders: map[string]string{
"Content-Encoding": string(SnappyBlockCompression),
RemoteWriteVersionHeader: RemoteWriteVersion20HeaderValue,
},
expectedCode: http.StatusNoContent,
},
{
name: "missing content-encoding",
reqHeaders: map[string]string{
"Content-Type": remoteWriteContentTypeHeaders[config.RemoteWriteProtoMsgV1],
RemoteWriteVersionHeader: RemoteWriteVersion20HeaderValue,
},
expectedCode: http.StatusNoContent,
},
{
name: "wrong content-type",
reqHeaders: map[string]string{
"Content-Type": "yolo",
"Content-Encoding": string(SnappyBlockCompression),
RemoteWriteVersionHeader: RemoteWriteVersion20HeaderValue,
},
expectedCode: http.StatusUnsupportedMediaType,
},
{
name: "wrong content-type2",
reqHeaders: map[string]string{
"Content-Type": appProtoContentType + ";proto=yolo",
"Content-Encoding": string(SnappyBlockCompression),
RemoteWriteVersionHeader: RemoteWriteVersion20HeaderValue,
},
expectedCode: http.StatusUnsupportedMediaType,
},
{
name: "not supported content-encoding",
reqHeaders: map[string]string{
"Content-Type": remoteWriteContentTypeHeaders[config.RemoteWriteProtoMsgV1],
"Content-Encoding": "zstd",
RemoteWriteVersionHeader: RemoteWriteVersion20HeaderValue,
},
expectedCode: http.StatusUnsupportedMediaType,
},
} {
t.Run(tc.name, func(t *testing.T) {
req, err := http.NewRequest("", "", bytes.NewReader(payload))
require.NoError(t, err)
for k, v := range tc.reqHeaders {
req.Header.Set(k, v)
}
appendable := &mockAppendable{}
handler := NewWriteHandler(nil, nil, appendable)
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable, []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV1})
recorder := httptest.NewRecorder()
handler.ServeHTTP(recorder, req)
resp := recorder.Result()
out, err := io.ReadAll(resp.Body)
require.NoError(t, err)
_ = resp.Body.Close()
require.Equal(t, tc.expectedCode, resp.StatusCode, string(out))
})
}
}
func TestRemoteWriteHandlerHeadersHandling_V2Message(t *testing.T) {
payload, _, _, err := buildV2WriteRequest(log.NewNopLogger(), writeV2RequestFixture.Timeseries, writeV2RequestFixture.Symbols, nil, nil, nil, "snappy")
require.NoError(t, err)
for _, tc := range []struct {
name string
reqHeaders map[string]string
expectedCode int
}{
{
name: "correct PRW 2.0 headers",
reqHeaders: map[string]string{
"Content-Type": remoteWriteContentTypeHeaders[config.RemoteWriteProtoMsgV2],
"Content-Encoding": string(SnappyBlockCompression),
RemoteWriteVersionHeader: RemoteWriteVersion20HeaderValue,
},
expectedCode: http.StatusNoContent,
},
{
name: "missing remote write version",
reqHeaders: map[string]string{
"Content-Type": remoteWriteContentTypeHeaders[config.RemoteWriteProtoMsgV2],
"Content-Encoding": string(SnappyBlockCompression),
},
expectedCode: http.StatusNoContent, // We don't check for now.
},
{
name: "no headers",
reqHeaders: map[string]string{},
expectedCode: http.StatusUnsupportedMediaType,
},
{
name: "missing content-type",
reqHeaders: map[string]string{
"Content-Encoding": string(SnappyBlockCompression),
RemoteWriteVersionHeader: RemoteWriteVersion20HeaderValue,
},
// This only gives 415, because we explicitly only support 2.0. If we supported both
// (default) it would be empty message parsed and ok response.
// This is perhaps better, than 415 for previously working 1.0 flow with
// no content-type.
expectedCode: http.StatusUnsupportedMediaType,
},
{
name: "missing content-encoding",
reqHeaders: map[string]string{
"Content-Type": remoteWriteContentTypeHeaders[config.RemoteWriteProtoMsgV2],
RemoteWriteVersionHeader: RemoteWriteVersion20HeaderValue,
},
expectedCode: http.StatusNoContent, // Similar to 1.0 impl, we default to Snappy, so it works.
},
{
name: "wrong content-type",
reqHeaders: map[string]string{
"Content-Type": "yolo",
"Content-Encoding": string(SnappyBlockCompression),
RemoteWriteVersionHeader: RemoteWriteVersion20HeaderValue,
},
expectedCode: http.StatusUnsupportedMediaType,
},
{
name: "wrong content-type2",
reqHeaders: map[string]string{
"Content-Type": appProtoContentType + ";proto=yolo",
"Content-Encoding": string(SnappyBlockCompression),
RemoteWriteVersionHeader: RemoteWriteVersion20HeaderValue,
},
expectedCode: http.StatusUnsupportedMediaType,
},
{
name: "not supported content-encoding",
reqHeaders: map[string]string{
"Content-Type": remoteWriteContentTypeHeaders[config.RemoteWriteProtoMsgV2],
"Content-Encoding": "zstd",
RemoteWriteVersionHeader: RemoteWriteVersion20HeaderValue,
},
expectedCode: http.StatusUnsupportedMediaType,
},
} {
t.Run(tc.name, func(t *testing.T) {
req, err := http.NewRequest("", "", bytes.NewReader(payload))
require.NoError(t, err)
for k, v := range tc.reqHeaders {
req.Header.Set(k, v)
}
appendable := &mockAppendable{}
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable, []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV2})
recorder := httptest.NewRecorder()
handler.ServeHTTP(recorder, req)
resp := recorder.Result()
out, err := io.ReadAll(resp.Body)
require.NoError(t, err)
_ = resp.Body.Close()
require.Equal(t, tc.expectedCode, resp.StatusCode, string(out))
})
}
}
func TestRemoteWriteHandler_V1Message(t *testing.T) {
payload, _, _, err := buildWriteRequest(nil, writeRequestFixture.Timeseries, nil, nil, nil, nil, "snappy")
require.NoError(t, err)
req, err := http.NewRequest("", "", bytes.NewReader(payload))
require.NoError(t, err)
// NOTE: Strictly speaking, even for 1.0 we require headers, but we never verified those
// in Prometheus, so keeping like this to not break existing 1.0 clients.
appendable := &mockAppendable{}
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable, []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV1})
recorder := httptest.NewRecorder()
handler.ServeHTTP(recorder, req)
@ -61,24 +266,22 @@ func TestRemoteWriteHandler(t *testing.T) {
j := 0
k := 0
for _, ts := range writeRequestFixture.Timeseries {
labels := LabelProtosToLabels(&b, ts.Labels)
labels := ts.ToLabels(&b, nil)
for _, s := range ts.Samples {
requireEqual(t, mockSample{labels, s.Timestamp, s.Value}, appendable.samples[i])
i++
}
for _, e := range ts.Exemplars {
exemplarLabels := LabelProtosToLabels(&b, e.Labels)
exemplarLabels := e.ToExemplar(&b, nil).Labels
requireEqual(t, mockExemplar{labels, exemplarLabels, e.Timestamp, e.Value}, appendable.exemplars[j])
j++
}
for _, hp := range ts.Histograms {
if hp.IsFloatHistogram() {
fh := FloatHistogramProtoToFloatHistogram(hp)
fh := hp.ToFloatHistogram()
requireEqual(t, mockHistogram{labels, hp.Timestamp, nil, fh}, appendable.histograms[k])
} else {
h := HistogramProtoToHistogram(hp)
h := hp.ToIntHistogram()
requireEqual(t, mockHistogram{labels, hp.Timestamp, h, nil}, appendable.histograms[k])
}
@ -87,8 +290,66 @@ func TestRemoteWriteHandler(t *testing.T) {
}
}
func TestOutOfOrderSample(t *testing.T) {
tests := []struct {
func TestRemoteWriteHandler_V2Message(t *testing.T) {
payload, _, _, err := buildV2WriteRequest(log.NewNopLogger(), writeV2RequestFixture.Timeseries, writeV2RequestFixture.Symbols, nil, nil, nil, "snappy")
require.NoError(t, err)
req, err := http.NewRequest("", "", bytes.NewReader(payload))
require.NoError(t, err)
req.Header.Set("Content-Type", remoteWriteContentTypeHeaders[config.RemoteWriteProtoMsgV2])
req.Header.Set("Content-Encoding", string(SnappyBlockCompression))
req.Header.Set(RemoteWriteVersionHeader, RemoteWriteVersion20HeaderValue)
appendable := &mockAppendable{}
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable, []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV2})
recorder := httptest.NewRecorder()
handler.ServeHTTP(recorder, req)
resp := recorder.Result()
require.Equal(t, http.StatusNoContent, resp.StatusCode)
b := labels.NewScratchBuilder(0)
i := 0
j := 0
k := 0
for _, ts := range writeV2RequestFixture.Timeseries {
ls := ts.ToLabels(&b, writeV2RequestFixture.Symbols)
for _, s := range ts.Samples {
requireEqual(t, mockSample{ls, s.Timestamp, s.Value}, appendable.samples[i])
switch i {
case 0:
requireEqual(t, mockMetadata{ls, writeV2RequestSeries1Metadata}, appendable.metadata[i])
case 1:
requireEqual(t, mockMetadata{ls, writeV2RequestSeries2Metadata}, appendable.metadata[i])
default:
t.Fatal("more series/samples then expected")
}
i++
}
for _, e := range ts.Exemplars {
exemplarLabels := e.ToExemplar(&b, writeV2RequestFixture.Symbols).Labels
requireEqual(t, mockExemplar{ls, exemplarLabels, e.Timestamp, e.Value}, appendable.exemplars[j])
j++
}
for _, hp := range ts.Histograms {
if hp.IsFloatHistogram() {
fh := hp.ToFloatHistogram()
requireEqual(t, mockHistogram{ls, hp.Timestamp, nil, fh}, appendable.histograms[k])
} else {
h := hp.ToIntHistogram()
requireEqual(t, mockHistogram{ls, hp.Timestamp, h, nil}, appendable.histograms[k])
}
k++
}
}
}
func TestOutOfOrderSample_V1Message(t *testing.T) {
for _, tc := range []struct {
Name string
Timestamp int64
}{
@ -100,23 +361,59 @@ func TestOutOfOrderSample(t *testing.T) {
Name: "future",
Timestamp: math.MaxInt64,
},
}
for _, tc := range tests {
} {
t.Run(tc.Name, func(t *testing.T) {
buf, _, _, err := buildWriteRequest(nil, []prompb.TimeSeries{{
payload, _, _, err := buildWriteRequest(nil, []prompb.TimeSeries{{
Labels: []prompb.Label{{Name: "__name__", Value: "test_metric"}},
Samples: []prompb.Sample{{Value: 1, Timestamp: tc.Timestamp}},
}}, nil, nil, nil, nil)
}}, nil, nil, nil, nil, "snappy")
require.NoError(t, err)
req, err := http.NewRequest("", "", bytes.NewReader(buf))
req, err := http.NewRequest("", "", bytes.NewReader(payload))
require.NoError(t, err)
appendable := &mockAppendable{
latestSample: 100,
appendable := &mockAppendable{latestSample: 100}
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable, []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV1})
recorder := httptest.NewRecorder()
handler.ServeHTTP(recorder, req)
resp := recorder.Result()
require.Equal(t, http.StatusBadRequest, resp.StatusCode)
})
}
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable)
}
func TestOutOfOrderSample_V2Message(t *testing.T) {
for _, tc := range []struct {
Name string
Timestamp int64
}{
{
Name: "historic",
Timestamp: 0,
},
{
Name: "future",
Timestamp: math.MaxInt64,
},
} {
t.Run(tc.Name, func(t *testing.T) {
payload, _, _, err := buildV2WriteRequest(nil, []writev2.TimeSeries{{
LabelsRefs: []uint32{1, 2},
Samples: []writev2.Sample{{Value: 1, Timestamp: tc.Timestamp}},
}}, []string{"", "__name__", "metric1"}, nil, nil, nil, "snappy")
require.NoError(t, err)
req, err := http.NewRequest("", "", bytes.NewReader(payload))
require.NoError(t, err)
req.Header.Set("Content-Type", remoteWriteContentTypeHeaders[config.RemoteWriteProtoMsgV2])
req.Header.Set("Content-Encoding", string(SnappyBlockCompression))
req.Header.Set(RemoteWriteVersionHeader, RemoteWriteVersion20HeaderValue)
appendable := &mockAppendable{latestSample: 100}
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable, []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV2})
recorder := httptest.NewRecorder()
handler.ServeHTTP(recorder, req)
@ -128,9 +425,9 @@ func TestOutOfOrderSample(t *testing.T) {
}
// This test case currently aims to verify that the WriteHandler endpoint
// don't fail on ingestion errors since the exemplar storage is
// don't fail on exemplar ingestion errors since the exemplar storage is
// still experimental.
func TestOutOfOrderExemplar(t *testing.T) {
func TestOutOfOrderExemplar_V1Message(t *testing.T) {
tests := []struct {
Name string
Timestamp int64
@ -147,19 +444,17 @@ func TestOutOfOrderExemplar(t *testing.T) {
for _, tc := range tests {
t.Run(tc.Name, func(t *testing.T) {
buf, _, _, err := buildWriteRequest(nil, []prompb.TimeSeries{{
payload, _, _, err := buildWriteRequest(nil, []prompb.TimeSeries{{
Labels: []prompb.Label{{Name: "__name__", Value: "test_metric"}},
Exemplars: []prompb.Exemplar{{Labels: []prompb.Label{{Name: "foo", Value: "bar"}}, Value: 1, Timestamp: tc.Timestamp}},
}}, nil, nil, nil, nil)
}}, nil, nil, nil, nil, "snappy")
require.NoError(t, err)
req, err := http.NewRequest("", "", bytes.NewReader(buf))
req, err := http.NewRequest("", "", bytes.NewReader(payload))
require.NoError(t, err)
appendable := &mockAppendable{
latestExemplar: 100,
}
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable)
appendable := &mockAppendable{latestExemplar: 100}
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable, []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV1})
recorder := httptest.NewRecorder()
handler.ServeHTTP(recorder, req)
@ -171,7 +466,7 @@ func TestOutOfOrderExemplar(t *testing.T) {
}
}
func TestOutOfOrderHistogram(t *testing.T) {
func TestOutOfOrderExemplar_V2Message(t *testing.T) {
tests := []struct {
Name string
Timestamp int64
@ -188,19 +483,98 @@ func TestOutOfOrderHistogram(t *testing.T) {
for _, tc := range tests {
t.Run(tc.Name, func(t *testing.T) {
buf, _, _, err := buildWriteRequest(nil, []prompb.TimeSeries{{
payload, _, _, err := buildV2WriteRequest(nil, []writev2.TimeSeries{{
LabelsRefs: []uint32{1, 2},
Exemplars: []writev2.Exemplar{{LabelsRefs: []uint32{3, 4}, Value: 1, Timestamp: tc.Timestamp}},
}}, []string{"", "__name__", "metric1", "foo", "bar"}, nil, nil, nil, "snappy")
require.NoError(t, err)
req, err := http.NewRequest("", "", bytes.NewReader(payload))
require.NoError(t, err)
req.Header.Set("Content-Type", remoteWriteContentTypeHeaders[config.RemoteWriteProtoMsgV2])
req.Header.Set("Content-Encoding", string(SnappyBlockCompression))
req.Header.Set(RemoteWriteVersionHeader, RemoteWriteVersion20HeaderValue)
appendable := &mockAppendable{latestExemplar: 100}
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable, []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV2})
recorder := httptest.NewRecorder()
handler.ServeHTTP(recorder, req)
resp := recorder.Result()
// TODO: update to require.Equal(t, http.StatusConflict, resp.StatusCode) once exemplar storage is not experimental.
require.Equal(t, http.StatusNoContent, resp.StatusCode)
})
}
}
func TestOutOfOrderHistogram_V1Message(t *testing.T) {
for _, tc := range []struct {
Name string
Timestamp int64
}{
{
Name: "historic",
Timestamp: 0,
},
{
Name: "future",
Timestamp: math.MaxInt64,
},
} {
t.Run(tc.Name, func(t *testing.T) {
payload, _, _, err := buildWriteRequest(nil, []prompb.TimeSeries{{
Labels: []prompb.Label{{Name: "__name__", Value: "test_metric"}},
Histograms: []prompb.Histogram{HistogramToHistogramProto(tc.Timestamp, &testHistogram), FloatHistogramToHistogramProto(1, testHistogram.ToFloat(nil))},
}}, nil, nil, nil, nil)
Histograms: []prompb.Histogram{prompb.FromIntHistogram(tc.Timestamp, &testHistogram), prompb.FromFloatHistogram(1, testHistogram.ToFloat(nil))},
}}, nil, nil, nil, nil, "snappy")
require.NoError(t, err)
req, err := http.NewRequest("", "", bytes.NewReader(buf))
req, err := http.NewRequest("", "", bytes.NewReader(payload))
require.NoError(t, err)
appendable := &mockAppendable{
latestHistogram: 100,
appendable := &mockAppendable{latestHistogram: 100}
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable, []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV1})
recorder := httptest.NewRecorder()
handler.ServeHTTP(recorder, req)
resp := recorder.Result()
require.Equal(t, http.StatusBadRequest, resp.StatusCode)
})
}
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable)
}
func TestOutOfOrderHistogram_V2Message(t *testing.T) {
for _, tc := range []struct {
Name string
Timestamp int64
}{
{
Name: "historic",
Timestamp: 0,
},
{
Name: "future",
Timestamp: math.MaxInt64,
},
} {
t.Run(tc.Name, func(t *testing.T) {
payload, _, _, err := buildV2WriteRequest(nil, []writev2.TimeSeries{{
LabelsRefs: []uint32{0, 1},
Histograms: []writev2.Histogram{writev2.FromIntHistogram(0, &testHistogram), writev2.FromFloatHistogram(1, testHistogram.ToFloat(nil))},
}}, []string{"__name__", "metric1"}, nil, nil, nil, "snappy")
require.NoError(t, err)
req, err := http.NewRequest("", "", bytes.NewReader(payload))
require.NoError(t, err)
req.Header.Set("Content-Type", remoteWriteContentTypeHeaders[config.RemoteWriteProtoMsgV2])
req.Header.Set("Content-Encoding", string(SnappyBlockCompression))
req.Header.Set(RemoteWriteVersionHeader, RemoteWriteVersion20HeaderValue)
appendable := &mockAppendable{latestHistogram: 100}
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable, []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV2})
recorder := httptest.NewRecorder()
handler.ServeHTTP(recorder, req)
@ -211,9 +585,9 @@ func TestOutOfOrderHistogram(t *testing.T) {
}
}
func BenchmarkRemoteWritehandler(b *testing.B) {
func BenchmarkRemoteWriteHandler(b *testing.B) {
const labelValue = "abcdefg'hijlmn234!@#$%^&*()_+~`\"{}[],./<>?hello0123hiOlá你好Dzieńdobry9Zd8ra765v4stvuyte"
reqs := []*http.Request{}
var reqs []*http.Request
for i := 0; i < b.N; i++ {
num := strings.Repeat(strconv.Itoa(i), 16)
buf, _, _, err := buildWriteRequest(nil, []prompb.TimeSeries{{
@ -221,8 +595,8 @@ func BenchmarkRemoteWritehandler(b *testing.B) {
{Name: "__name__", Value: "test_metric"},
{Name: "test_label_name_" + num, Value: labelValue + num},
},
Histograms: []prompb.Histogram{HistogramToHistogramProto(0, &testHistogram)},
}}, nil, nil, nil, nil)
Histograms: []prompb.Histogram{prompb.FromIntHistogram(0, &testHistogram)},
}}, nil, nil, nil, nil, "snappy")
require.NoError(b, err)
req, err := http.NewRequest("", "", bytes.NewReader(buf))
require.NoError(b, err)
@ -230,7 +604,8 @@ func BenchmarkRemoteWritehandler(b *testing.B) {
}
appendable := &mockAppendable{}
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable)
// TODO: test with other proto format(s)
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable, []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV1})
recorder := httptest.NewRecorder()
b.ResetTimer()
@ -239,17 +614,39 @@ func BenchmarkRemoteWritehandler(b *testing.B) {
}
}
func TestCommitErr(t *testing.T) {
buf, _, _, err := buildWriteRequest(nil, writeRequestFixture.Timeseries, nil, nil, nil, nil)
func TestCommitErr_V1Message(t *testing.T) {
payload, _, _, err := buildWriteRequest(nil, writeRequestFixture.Timeseries, nil, nil, nil, nil, "snappy")
require.NoError(t, err)
req, err := http.NewRequest("", "", bytes.NewReader(buf))
req, err := http.NewRequest("", "", bytes.NewReader(payload))
require.NoError(t, err)
appendable := &mockAppendable{
commitErr: fmt.Errorf("commit error"),
}
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable)
appendable := &mockAppendable{commitErr: fmt.Errorf("commit error")}
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable, []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV1})
recorder := httptest.NewRecorder()
handler.ServeHTTP(recorder, req)
resp := recorder.Result()
body, err := io.ReadAll(resp.Body)
require.NoError(t, err)
require.Equal(t, http.StatusInternalServerError, resp.StatusCode)
require.Equal(t, "commit error\n", string(body))
}
func TestCommitErr_V2Message(t *testing.T) {
payload, _, _, err := buildV2WriteRequest(log.NewNopLogger(), writeV2RequestFixture.Timeseries, writeV2RequestFixture.Symbols, nil, nil, nil, "snappy")
require.NoError(t, err)
req, err := http.NewRequest("", "", bytes.NewReader(payload))
require.NoError(t, err)
req.Header.Set("Content-Type", remoteWriteContentTypeHeaders[config.RemoteWriteProtoMsgV2])
req.Header.Set("Content-Encoding", string(SnappyBlockCompression))
req.Header.Set(RemoteWriteVersionHeader, RemoteWriteVersion20HeaderValue)
appendable := &mockAppendable{commitErr: fmt.Errorf("commit error")}
handler := NewWriteHandler(log.NewNopLogger(), nil, appendable, []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV2})
recorder := httptest.NewRecorder()
handler.ServeHTTP(recorder, req)
@ -275,10 +672,10 @@ func BenchmarkRemoteWriteOOOSamples(b *testing.B) {
b.Cleanup(func() {
require.NoError(b, db.Close())
})
// TODO: test with other proto format(s)
handler := NewWriteHandler(log.NewNopLogger(), nil, db.Head(), []config.RemoteWriteProtoMsg{config.RemoteWriteProtoMsgV1})
handler := NewWriteHandler(log.NewNopLogger(), nil, db.Head())
buf, _, _, err := buildWriteRequest(nil, genSeriesWithSample(1000, 200*time.Minute.Milliseconds()), nil, nil, nil, nil)
buf, _, _, err := buildWriteRequest(nil, genSeriesWithSample(1000, 200*time.Minute.Milliseconds()), nil, nil, nil, nil, "snappy")
require.NoError(b, err)
req, err := http.NewRequest("", "", bytes.NewReader(buf))
@ -291,7 +688,7 @@ func BenchmarkRemoteWriteOOOSamples(b *testing.B) {
var bufRequests [][]byte
for i := 0; i < 100; i++ {
buf, _, _, err = buildWriteRequest(nil, genSeriesWithSample(1000, int64(80+i)*time.Minute.Milliseconds()), nil, nil, nil, nil)
buf, _, _, err = buildWriteRequest(nil, genSeriesWithSample(1000, int64(80+i)*time.Minute.Milliseconds()), nil, nil, nil, nil, "snappy")
require.NoError(b, err)
bufRequests = append(bufRequests, buf)
}
@ -328,6 +725,8 @@ type mockAppendable struct {
exemplars []mockExemplar
latestHistogram int64
histograms []mockHistogram
metadata []mockMetadata
commitErr error
}
@ -351,10 +750,17 @@ type mockHistogram struct {
fh *histogram.FloatHistogram
}
type mockMetadata struct {
l labels.Labels
m metadata.Metadata
}
// Wrapper to instruct go-cmp package to compare a list of structs with unexported fields.
func requireEqual(t *testing.T, expected, actual interface{}, msgAndArgs ...interface{}) {
t.Helper()
testutil.RequireEqualWithOptions(t, expected, actual,
[]cmp.Option{cmp.AllowUnexported(mockSample{}), cmp.AllowUnexported(mockExemplar{}), cmp.AllowUnexported(mockHistogram{})},
[]cmp.Option{cmp.AllowUnexported(mockSample{}), cmp.AllowUnexported(mockExemplar{}), cmp.AllowUnexported(mockHistogram{}), cmp.AllowUnexported(mockMetadata{})},
msgAndArgs...)
}
@ -400,13 +806,14 @@ func (m *mockAppendable) AppendHistogram(_ storage.SeriesRef, l labels.Labels, t
return 0, nil
}
func (m *mockAppendable) UpdateMetadata(_ storage.SeriesRef, _ labels.Labels, _ metadata.Metadata) (storage.SeriesRef, error) {
// TODO: Wire metadata in a mockAppendable field when we get around to handling metadata in remote_write.
// UpdateMetadata is no-op for remote write (where mockAppendable is being used to test) for now.
func (m *mockAppendable) UpdateMetadata(_ storage.SeriesRef, l labels.Labels, mp metadata.Metadata) (storage.SeriesRef, error) {
m.metadata = append(m.metadata, mockMetadata{l: l, m: mp})
return 0, nil
}
func (m *mockAppendable) AppendCTZeroSample(_ storage.SeriesRef, _ labels.Labels, _, _ int64) (storage.SeriesRef, error) {
// AppendCTZeroSample is no-op for remote-write for now.
// TODO(bwplotka): Add support for PRW 2.0 for CT zero feature (but also we might
// replace this with in-metadata CT storage, see https://github.com/prometheus/prometheus/issues/14218).
return 0, nil
}

@ -15,6 +15,7 @@ package remote
import (
"bytes"
"errors"
"net/http"
"net/http/httptest"
"net/url"
@ -44,10 +45,11 @@ func testRemoteWriteConfig() *config.RemoteWriteConfig {
},
},
QueueConfig: config.DefaultQueueConfig,
ProtobufMessage: config.RemoteWriteProtoMsgV1,
}
}
func TestNoDuplicateWriteConfigs(t *testing.T) {
func TestWriteStorageApplyConfig_NoDuplicateWriteConfigs(t *testing.T) {
dir := t.TempDir()
cfg1 := config.RemoteWriteConfig{
@ -59,6 +61,7 @@ func TestNoDuplicateWriteConfigs(t *testing.T) {
},
},
QueueConfig: config.DefaultQueueConfig,
ProtobufMessage: config.RemoteWriteProtoMsgV1,
}
cfg2 := config.RemoteWriteConfig{
Name: "write-2",
@ -69,6 +72,7 @@ func TestNoDuplicateWriteConfigs(t *testing.T) {
},
},
QueueConfig: config.DefaultQueueConfig,
ProtobufMessage: config.RemoteWriteProtoMsgV1,
}
cfg3 := config.RemoteWriteConfig{
URL: &common_config.URL{
@ -78,60 +82,48 @@ func TestNoDuplicateWriteConfigs(t *testing.T) {
},
},
QueueConfig: config.DefaultQueueConfig,
ProtobufMessage: config.RemoteWriteProtoMsgV1,
}
type testcase struct {
for _, tc := range []struct {
cfgs []*config.RemoteWriteConfig
err bool
}
cases := []testcase{
expectedErr error
}{
{ // Two duplicates, we should get an error.
cfgs: []*config.RemoteWriteConfig{
&cfg1,
&cfg1,
},
err: true,
cfgs: []*config.RemoteWriteConfig{&cfg1, &cfg1},
expectedErr: errors.New("duplicate remote write configs are not allowed, found duplicate for URL: http://localhost"),
},
{ // Duplicates but with different names, we should not get an error.
cfgs: []*config.RemoteWriteConfig{
&cfg1,
&cfg2,
},
err: false,
cfgs: []*config.RemoteWriteConfig{&cfg1, &cfg2},
},
{ // Duplicates but one with no name, we should not get an error.
cfgs: []*config.RemoteWriteConfig{
&cfg1,
&cfg3,
},
err: false,
cfgs: []*config.RemoteWriteConfig{&cfg1, &cfg3},
},
{ // Duplicates both with no name, we should get an error.
cfgs: []*config.RemoteWriteConfig{
&cfg3,
&cfg3,
cfgs: []*config.RemoteWriteConfig{&cfg3, &cfg3},
expectedErr: errors.New("duplicate remote write configs are not allowed, found duplicate for URL: http://localhost"),
},
err: true,
},
}
for _, tc := range cases {
s := NewWriteStorage(nil, nil, dir, time.Millisecond, nil)
} {
t.Run("", func(t *testing.T) {
s := NewWriteStorage(nil, nil, dir, time.Millisecond, nil, false)
conf := &config.Config{
GlobalConfig: config.DefaultGlobalConfig,
RemoteWriteConfigs: tc.cfgs,
}
err := s.ApplyConfig(conf)
gotError := err != nil
require.Equal(t, tc.err, gotError)
err = s.Close()
if tc.expectedErr == nil {
require.NoError(t, err)
} else {
require.Error(t, err)
require.Equal(t, tc.expectedErr, err)
}
require.NoError(t, s.Close())
})
}
}
func TestRestartOnNameChange(t *testing.T) {
func TestWriteStorageApplyConfig_RestartOnNameChange(t *testing.T) {
dir := t.TempDir()
cfg := testRemoteWriteConfig()
@ -139,13 +131,11 @@ func TestRestartOnNameChange(t *testing.T) {
hash, err := toHash(cfg)
require.NoError(t, err)
s := NewWriteStorage(nil, nil, dir, time.Millisecond, nil)
s := NewWriteStorage(nil, nil, dir, time.Millisecond, nil, false)
conf := &config.Config{
GlobalConfig: config.DefaultGlobalConfig,
RemoteWriteConfigs: []*config.RemoteWriteConfig{
cfg,
},
RemoteWriteConfigs: []*config.RemoteWriteConfig{cfg},
}
require.NoError(t, s.ApplyConfig(conf))
require.Equal(t, s.queues[hash].client().Name(), cfg.Name)
@ -157,14 +147,13 @@ func TestRestartOnNameChange(t *testing.T) {
require.NoError(t, err)
require.Equal(t, s.queues[hash].client().Name(), conf.RemoteWriteConfigs[0].Name)
err = s.Close()
require.NoError(t, err)
require.NoError(t, s.Close())
}
func TestUpdateWithRegisterer(t *testing.T) {
func TestWriteStorageApplyConfig_UpdateWithRegisterer(t *testing.T) {
dir := t.TempDir()
s := NewWriteStorage(nil, prometheus.NewRegistry(), dir, time.Millisecond, nil)
s := NewWriteStorage(nil, prometheus.NewRegistry(), dir, time.Millisecond, nil, false)
c1 := &config.RemoteWriteConfig{
Name: "named",
URL: &common_config.URL{
@ -174,6 +163,7 @@ func TestUpdateWithRegisterer(t *testing.T) {
},
},
QueueConfig: config.DefaultQueueConfig,
ProtobufMessage: config.RemoteWriteProtoMsgV1,
}
c2 := &config.RemoteWriteConfig{
URL: &common_config.URL{
@ -183,6 +173,7 @@ func TestUpdateWithRegisterer(t *testing.T) {
},
},
QueueConfig: config.DefaultQueueConfig,
ProtobufMessage: config.RemoteWriteProtoMsgV1,
}
conf := &config.Config{
GlobalConfig: config.DefaultGlobalConfig,
@ -197,14 +188,13 @@ func TestUpdateWithRegisterer(t *testing.T) {
require.Equal(t, 10, queue.cfg.MaxShards)
}
err := s.Close()
require.NoError(t, err)
require.NoError(t, s.Close())
}
func TestWriteStorageLifecycle(t *testing.T) {
func TestWriteStorageApplyConfig_Lifecycle(t *testing.T) {
dir := t.TempDir()
s := NewWriteStorage(nil, nil, dir, defaultFlushDeadline, nil)
s := NewWriteStorage(nil, nil, dir, defaultFlushDeadline, nil, false)
conf := &config.Config{
GlobalConfig: config.DefaultGlobalConfig,
RemoteWriteConfigs: []*config.RemoteWriteConfig{
@ -214,14 +204,13 @@ func TestWriteStorageLifecycle(t *testing.T) {
require.NoError(t, s.ApplyConfig(conf))
require.Len(t, s.queues, 1)
err := s.Close()
require.NoError(t, err)
require.NoError(t, s.Close())
}
func TestUpdateExternalLabels(t *testing.T) {
func TestWriteStorageApplyConfig_UpdateExternalLabels(t *testing.T) {
dir := t.TempDir()
s := NewWriteStorage(nil, prometheus.NewRegistry(), dir, time.Second, nil)
s := NewWriteStorage(nil, prometheus.NewRegistry(), dir, time.Second, nil, false)
externalLabels := labels.FromStrings("external", "true")
conf := &config.Config{
@ -243,15 +232,13 @@ func TestUpdateExternalLabels(t *testing.T) {
require.Len(t, s.queues, 1)
require.Equal(t, []labels.Label{{Name: "external", Value: "true"}}, s.queues[hash].externalLabels)
err = s.Close()
require.NoError(t, err)
require.NoError(t, s.Close())
}
func TestWriteStorageApplyConfigsIdempotent(t *testing.T) {
func TestWriteStorageApplyConfig_Idempotent(t *testing.T) {
dir := t.TempDir()
s := NewWriteStorage(nil, nil, dir, defaultFlushDeadline, nil)
s := NewWriteStorage(nil, nil, dir, defaultFlushDeadline, nil, false)
conf := &config.Config{
GlobalConfig: config.GlobalConfig{},
RemoteWriteConfigs: []*config.RemoteWriteConfig{
@ -269,14 +256,13 @@ func TestWriteStorageApplyConfigsIdempotent(t *testing.T) {
_, hashExists := s.queues[hash]
require.True(t, hashExists, "Queue pointer should have remained the same")
err = s.Close()
require.NoError(t, err)
require.NoError(t, s.Close())
}
func TestWriteStorageApplyConfigsPartialUpdate(t *testing.T) {
func TestWriteStorageApplyConfig_PartialUpdate(t *testing.T) {
dir := t.TempDir()
s := NewWriteStorage(nil, nil, dir, defaultFlushDeadline, nil)
s := NewWriteStorage(nil, nil, dir, defaultFlushDeadline, nil, false)
c0 := &config.RemoteWriteConfig{
RemoteTimeout: model.Duration(10 * time.Second),
@ -286,6 +272,7 @@ func TestWriteStorageApplyConfigsPartialUpdate(t *testing.T) {
Regex: relabel.MustNewRegexp(".+"),
},
},
ProtobufMessage: config.RemoteWriteProtoMsgV1,
}
c1 := &config.RemoteWriteConfig{
RemoteTimeout: model.Duration(20 * time.Second),
@ -293,10 +280,12 @@ func TestWriteStorageApplyConfigsPartialUpdate(t *testing.T) {
HTTPClientConfig: common_config.HTTPClientConfig{
BearerToken: "foo",
},
ProtobufMessage: config.RemoteWriteProtoMsgV1,
}
c2 := &config.RemoteWriteConfig{
RemoteTimeout: model.Duration(30 * time.Second),
QueueConfig: config.DefaultQueueConfig,
ProtobufMessage: config.RemoteWriteProtoMsgV1,
}
conf := &config.Config{
@ -376,8 +365,7 @@ func TestWriteStorageApplyConfigsPartialUpdate(t *testing.T) {
_, hashExists = s.queues[hashes[2]]
require.True(t, hashExists, "Pointer of unchanged queue should have remained the same")
err = s.Close()
require.NoError(t, err)
require.NoError(t, s.Close())
}
func TestOTLPWriteHandler(t *testing.T) {

@ -89,7 +89,7 @@ func createTestAgentDB(t testing.TB, reg prometheus.Registerer, opts *Options) *
t.Helper()
dbDir := t.TempDir()
rs := remote.NewStorage(log.NewNopLogger(), reg, startTime, dbDir, time.Second*30, nil)
rs := remote.NewStorage(log.NewNopLogger(), reg, startTime, dbDir, time.Second*30, nil, false)
t.Cleanup(func() {
require.NoError(t, rs.Close())
})
@ -585,7 +585,7 @@ func TestLockfile(t *testing.T) {
tsdbutil.TestDirLockerUsage(t, func(t *testing.T, data string, createLock bool) (*tsdbutil.DirLocker, testutil.Closer) {
logger := log.NewNopLogger()
reg := prometheus.NewRegistry()
rs := remote.NewStorage(logger, reg, startTime, data, time.Second*30, nil)
rs := remote.NewStorage(logger, reg, startTime, data, time.Second*30, nil, false)
t.Cleanup(func() {
require.NoError(t, rs.Close())
})
@ -605,7 +605,7 @@ func TestLockfile(t *testing.T) {
func Test_ExistingWAL_NextRef(t *testing.T) {
dbDir := t.TempDir()
rs := remote.NewStorage(log.NewNopLogger(), nil, startTime, dbDir, time.Second*30, nil)
rs := remote.NewStorage(log.NewNopLogger(), nil, startTime, dbDir, time.Second*30, nil, false)
defer func() {
require.NoError(t, rs.Close())
}()

@ -57,6 +57,7 @@ type WriteTo interface {
AppendHistograms([]record.RefHistogramSample) bool
AppendFloatHistograms([]record.RefFloatHistogramSample) bool
StoreSeries([]record.RefSeries, int)
StoreMetadata([]record.RefMetadata)
// Next two methods are intended for garbage-collection: first we call
// UpdateSeriesSegment on all current series
@ -88,6 +89,7 @@ type Watcher struct {
lastCheckpoint string
sendExemplars bool
sendHistograms bool
sendMetadata bool
metrics *WatcherMetrics
readerMetrics *LiveReaderMetrics
@ -170,7 +172,7 @@ func NewWatcherMetrics(reg prometheus.Registerer) *WatcherMetrics {
}
// NewWatcher creates a new WAL watcher for a given WriteTo.
func NewWatcher(metrics *WatcherMetrics, readerMetrics *LiveReaderMetrics, logger log.Logger, name string, writer WriteTo, dir string, sendExemplars, sendHistograms bool) *Watcher {
func NewWatcher(metrics *WatcherMetrics, readerMetrics *LiveReaderMetrics, logger log.Logger, name string, writer WriteTo, dir string, sendExemplars, sendHistograms, sendMetadata bool) *Watcher {
if logger == nil {
logger = log.NewNopLogger()
}
@ -183,6 +185,7 @@ func NewWatcher(metrics *WatcherMetrics, readerMetrics *LiveReaderMetrics, logge
name: name,
sendExemplars: sendExemplars,
sendHistograms: sendHistograms,
sendMetadata: sendMetadata,
readNotify: make(chan struct{}),
quit: make(chan struct{}),
@ -541,6 +544,7 @@ func (w *Watcher) readSegment(r *LiveReader, segmentNum int, tail bool) error {
histogramsToSend []record.RefHistogramSample
floatHistograms []record.RefFloatHistogramSample
floatHistogramsToSend []record.RefFloatHistogramSample
metadata []record.RefMetadata
)
for r.Next() && !isClosed(w.quit) {
rec := r.Record()
@ -652,6 +656,17 @@ func (w *Watcher) readSegment(r *LiveReader, segmentNum int, tail bool) error {
w.writer.AppendFloatHistograms(floatHistogramsToSend)
floatHistogramsToSend = floatHistogramsToSend[:0]
}
case record.Metadata:
if !w.sendMetadata || !tail {
break
}
meta, err := dec.Metadata(rec, metadata[:0])
if err != nil {
w.recordDecodeFailsMetric.Inc()
return err
}
w.writer.StoreMetadata(meta)
case record.Tombstones:
default:

@ -92,6 +92,8 @@ func (wtm *writeToMock) StoreSeries(series []record.RefSeries, index int) {
wtm.UpdateSeriesSegment(series, index)
}
func (wtm *writeToMock) StoreMetadata(_ []record.RefMetadata) { /* no-op */ }
func (wtm *writeToMock) UpdateSeriesSegment(series []record.RefSeries, index int) {
wtm.seriesLock.Lock()
defer wtm.seriesLock.Unlock()
@ -219,7 +221,7 @@ func TestTailSamples(t *testing.T) {
require.NoError(t, err)
wt := newWriteToMock(0)
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, true, true)
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, true, true, true)
watcher.SetStartTime(now)
// Set the Watcher's metrics so they're not nil pointers.
@ -304,7 +306,7 @@ func TestReadToEndNoCheckpoint(t *testing.T) {
require.NoError(t, err)
wt := newWriteToMock(0)
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, false, false)
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, false, false, false)
go watcher.Start()
expected := seriesCount
@ -393,7 +395,7 @@ func TestReadToEndWithCheckpoint(t *testing.T) {
require.NoError(t, err)
readTimeout = time.Second
wt := newWriteToMock(0)
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, false, false)
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, false, false, false)
go watcher.Start()
expected := seriesCount * 2
@ -464,7 +466,7 @@ func TestReadCheckpoint(t *testing.T) {
require.NoError(t, err)
wt := newWriteToMock(0)
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, false, false)
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, false, false, false)
go watcher.Start()
expectedSeries := seriesCount
@ -533,7 +535,7 @@ func TestReadCheckpointMultipleSegments(t *testing.T) {
}
wt := newWriteToMock(0)
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, false, false)
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, false, false, false)
watcher.MaxSegment = -1
// Set the Watcher's metrics so they're not nil pointers.
@ -606,7 +608,7 @@ func TestCheckpointSeriesReset(t *testing.T) {
readTimeout = time.Second
wt := newWriteToMock(0)
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, false, false)
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, false, false, false)
watcher.MaxSegment = -1
go watcher.Start()
@ -685,7 +687,7 @@ func TestRun_StartupTime(t *testing.T) {
require.NoError(t, w.Close())
wt := newWriteToMock(0)
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, false, false)
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, false, false, false)
watcher.MaxSegment = segments
watcher.setMetrics()
@ -774,7 +776,7 @@ func TestRun_AvoidNotifyWhenBehind(t *testing.T) {
}()
wt := newWriteToMock(time.Millisecond)
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, false, false)
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, false, false, false)
watcher.MaxSegment = segments
watcher.setMetrics()

@ -248,6 +248,7 @@ func NewAPI(
registerer prometheus.Registerer,
statsRenderer StatsRenderer,
rwEnabled bool,
acceptRemoteWriteProtoMsgs []config.RemoteWriteProtoMsg,
otlpEnabled bool,
) *API {
a := &API{
@ -290,7 +291,7 @@ func NewAPI(
}
if rwEnabled {
a.remoteWriteHandler = remote.NewWriteHandler(logger, registerer, ap)
a.remoteWriteHandler = remote.NewWriteHandler(logger, registerer, ap, acceptRemoteWriteProtoMsgs)
}
if otlpEnabled {
a.otlpWriteHandler = remote.NewOTLPWriteHandler(logger, ap)

@ -455,7 +455,7 @@ func TestEndpoints(t *testing.T) {
remote := remote.NewStorage(promlog.New(&promlogConfig), prometheus.DefaultRegisterer, func() (int64, error) {
return 0, nil
}, dbDir, 1*time.Second, nil)
}, dbDir, 1*time.Second, nil, false)
err = remote.ApplyConfig(&config.Config{
RemoteReadConfigs: []*config.RemoteReadConfig{

@ -135,6 +135,7 @@ func createPrometheusAPI(q storage.SampleAndChunkQueryable) *route.Router {
nil,
nil,
false,
config.RemoteWriteProtoMsgs{config.RemoteWriteProtoMsgV1, config.RemoteWriteProtoMsgV2},
false,
)

@ -265,6 +265,8 @@ type Options struct {
IsAgent bool
AppName string
AcceptRemoteWriteProtoMsgs []config.RemoteWriteProtoMsg
Gatherer prometheus.Gatherer
Registerer prometheus.Registerer
}
@ -353,6 +355,7 @@ func New(logger log.Logger, o *Options) *Handler {
o.Registerer,
nil,
o.EnableRemoteWriteReceiver,
o.AcceptRemoteWriteProtoMsgs,
o.EnableOTLPWriteReceiver,
)

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