Commit Graph

490 Commits (6c8163e9aa180f87576a955072d43bda9685c519)

Author SHA1 Message Date
Xiaochao Dong (@damnever) 9979024a30 Report error if the series contains invalid metric names or labels during scrape
Signed-off-by: Xiaochao Dong (@damnever) <the.xcdong@gmail.com>
2022-12-08 20:01:20 +08:00
Bryan Boreham 8d4140a06e labels: note that Hash may change
For performance reasons we may use a different implementation of Hash()
in future, so note this so callers can be warned.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2022-11-28 16:17:32 +00:00
Julien Pivotto 005ede70de relabel: add keepequal/dropequal relabel action
Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu>
2022-11-10 14:41:02 +01:00
Ganesh Vernekar bde500e690
Merge pull request #11420 from jesusvazquez/jvp/update-sparsehistogram-with-main-v2
Merge branch 'main' into sparsehistogram
2022-10-12 11:45:50 +05:30
Douglas Camata 28a66e183d Update relabel.Process comment
Signed-off-by: Douglas Camata <159076+douglascamata@users.noreply.github.com>
2022-10-10 11:31:23 +02:00
beorn7 bf0847073d histogram: Modify getBound to deal properly with infinity
The bucket receiving math.MaxFloat64 observations now has
math.MaxFloat64 as upper bound, while the bucket after it (the last
possible bucket) has +Inf.

This also adds a test for getBound and moves the getBound code to
generic.go (where it should have been in the first place).

Signed-off-by: beorn7 <beorn@grafana.com>
2022-10-06 17:40:03 +02:00
Jesus Vazquez e934d0f011 Merge 'main' into sparsehistogram
Signed-off-by: Jesus Vazquez <jesus.vazquez@grafana.com>
2022-10-05 22:14:49 +02:00
Björn Rabenstein dccfb9db4e
histogram: Remove code replication via generics (#11361)
* histogram: Simplify iterators

We don't really need currLower and currUpper and can calculate it when
needed (as already done for the floatBucketIterator). The calculation
is cheap, while keeping those extra variables around costs RAM
(potentially a lot with many iterators).

* histogram: Convert Bucket/FloatBucket to one generic type

* histogram: Move some bucket iterator code into generic base iterator

* histogram: Remove cumulative iterator for FloatHistogram

We added it in the past for completeness (Histogram has one), but it
has never been used. Plus, even the cumulative iterator for Histogram
is only there for test reasons.

We can always add it back, and then maybe even using generics.

Signed-off-by: beorn7 <beorn@grafana.com>
2022-10-03 16:45:27 +05:30
Bryan Boreham 8120af22e2 benchmarks: SetBytes takes bytes per operation
Where the code was multiplying bytes by number of operations, this
resulted in absurdly high throughput numbers.

Also, in `BenchmarkParse()`, don't run the `expfmt` case twice.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2022-10-02 22:11:33 +02:00
beorn7 a7c519930e histograms: Add Compact method to the normal integer Histogram
And use the new method to call to compact Histograms during
parsing. This happens for both `Histogram` and `FloatHistogram`. In
this way, if targets decide to optimize the exposition size by merging
spans with empty buckets in between, we still get a normalized
results. It will also normalize away any valid but weird
representations like empty spans, spans with offset zero, and empty
buckets at the start or end of a span.

The implementation seemed easy at first as it just turns the
`compactBuckets` helper into a generic function (which now got its own
file). However, the integer Histograms have delta buckets instead of
absolute buckets, which had to be treated specially in the generic
`compactBuckets` function. To make sure it works, I have added plenty
of explicit tests for `Histogram` in addition to the `FloatHistogram`
tests.

I have also updated the doc comment for the `Compact` method.

Based on the insights now expressed in the doc comment, compacting
with a maxEmptyBuckets > 0 is rarely useful. Therefore, this commit
also sets the value to 0 in the two cases we were using 3 so far. We
might still want to reconsider, so I don't want to remove the
maxEmptyBuckets parameter right now.

Signed-off-by: beorn7 <beorn@grafana.com>
2022-09-27 13:04:16 +02:00
Ganesh Vernekar 2474c6fb2c
Error on amending histograms on append (#11308)
* Error on amending histograms on append

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Rename Matches to Equals

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
2022-09-19 13:10:30 +05:30
Bryan Boreham 5421c778ba labels: in tests use labels.FromStrings
Replacing code which assumes the internal structure of `Labels`.

Add a convenience function `EmptyLabels()` which is more efficient than
calling `New()`.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2022-09-09 13:34:49 +02:00
Julien Pivotto 96d5a32659
Update go to 1.19, set min version to 1.18 (#11279)
* Update go to 1.19, set min version to 1.18

Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu>

* Update golangci-lint

Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu>

Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu>
2022-09-07 11:30:48 +02:00
Cosrider bef6556ca5
delete redundant alias (#11180)
Signed-off-by: Cosrider <cosrider7@gmail.com>

Signed-off-by: Cosrider <cosrider7@gmail.com>
2022-08-31 15:50:38 +02:00
Marc Tudurí f7df3b86ba
histograms: parse float histograms from proto definition (#11149)
* histograms: parse float histograms from proto definition

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

* Improve comment

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

* Ignore float buckets

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

* Refactor Histogram() function

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

* Fix test_float_histogram

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

* Update model/textparse/protobufparse.go

Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>
Signed-off-by: Marc Tudurí <marctc@protonmail.com>

* Update protobufparse.go

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

* Update scrape.go

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

* Update scrape/scrape.go

Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>
Signed-off-by: Marc Tudurí <marctc@protonmail.com>

Signed-off-by: Marc Tuduri <marctc@protonmail.com>
Signed-off-by: Marc Tudurí <marctc@protonmail.com>
Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>
2022-08-25 20:37:41 +05:30
Bryan Boreham 8b863c42dd
Optimise relabeling by re-using memory (#11147)
* model/relabel: Add benchmark

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

* model/relabel: re-use Builder across relabels

Saves memory allocations.

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

* labels.Builder: allow re-use of result slice

This reduces memory allocations where the caller has a suitable slice available.

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

* model/relabel: re-use source values slice

To reduce memory allocations.

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

* Unwind one change causing test failures

Restore original behaviour in PopulateLabels, where we must not overwrite the input set.

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

* relabel: simplify values optimisation

Use a stack-based array for up to 16 source labels, which will be the
vast majority of cases.

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

* lint

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

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2022-08-19 15:27:52 +05:30
beorn7 c9fd3c235d Merge branch 'main' into sparsehistogram 2022-08-10 17:54:37 +02:00
Bryan Boreham a7f19b5775 labels: add a test for JSON and YAML marshalling
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2022-08-03 11:18:02 +02:00
Bryan Boreham 10699c37a3 labels: test BytesWithoutLabels does not remove __name__ by default
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2022-08-03 11:18:02 +02:00
Bryan Boreham d46ef0aa8e labels: tweak BenchmarkLabels_Get()
So the benchmark works without requiring `Labels` internals to be a slice.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2022-08-03 11:18:02 +02:00
Bryan Boreham 24ebff9c4a labels: don't test that Hash() works on unordered labels
Labels are required to be ordered.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2022-08-03 11:18:02 +02:00
Bryan Boreham fb2d883f1e labels: test Compare without knowing the exact result
Only the sign of the result is important

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2022-08-03 11:18:02 +02:00
beorn7 89fb7117c3 textparse: Remove TODO that is actually done
Signed-off-by: beorn7 <beorn@grafana.com>
2022-07-20 19:08:36 +02:00
beorn7 c40b105efd histograms: Move to new exposition protobuf format
This is an incompatible protobuf change. Instrumented targets must
include https://github.com/prometheus/client_golang/pull/1092 to make
this work.

Signed-off-by: beorn7 <beorn@grafana.com>
2022-07-19 18:11:33 +02:00
Paschalis Tsilias d1122e0743
Introduce TSDB changes for appending metadata to the WAL (#10972)
* Append metadata to the WAL

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

* Remove extra whitespace; Reword some docstrings and comments

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

* Use RLock() for hasNewMetadata check

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

* Use single byte for metric type in RefMetadata

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

* Update proposed WAL format for single-byte type metadata

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

* Implementa MetadataAppender interface for the Agent

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

* Address first round of review comments

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

* Amend description of metadata in wal.md

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

* Correct key used to retrieve metadata from cache

When we're setting metadata entries in the scrapeCace, we're using the
p.Help(), p.Unit(), p.Type() helpers, which retrieve the series name and
use it as the cache key. When checking for cache entries though, we used
p.Series() as the key, which included the metric name _with_ its labels.
That meant that we were never actually hitting the cache. We're fixing
this by utiling the __name__ internal label for correctly getting the
cache entries after they've been set by setHelp(), setType() or
setUnit().

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

* Put feature behind a feature flag

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

* Fix AppendMetadata docstring

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

* Reorder WAL format document

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

* Change error message of AppendMetadata; Fix access of s.meta in AppendMetadata

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

* Reuse temporary buffer in Metadata encoder

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

* Only keep latest metadata for each refID during checkpointing

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

* Fix test that's referencing decoding metadata

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

* Avoid creating metadata block if no new metadata are present

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

* Add tests for corrupt metadata block and relevant record type

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

* Fix CR comments

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

* Extract logic about changing metadata in an anonymous function

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

* Implement new proposed WAL format and amend relevant tests

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

* Use 'const' for metadata field names

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

* Apply metadata to head memSeries in Commit, not in AppendMetadata

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

* Add docstring and rename extracted helper in scrape.go

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

* Add tests for tsdb-related cases

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

* Fix linter issues vol1

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

* Fix linter issues vol2

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

* Fix Windows test by closing WAL reader files

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

* Use switch instead of two if statements in metadata decoding

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

* Fix review comments around TestMetadata* tests

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

* Add code for replaying WAL; test correctness of in-memory data after a replay

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

* Remove scrape-loop related code from PR

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

* Address first round of comments

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

* Simplify tests by sorting slices before comparison

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

* Fix test to use separate transactions

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

* Empty out buffer and record slices after encoding latest metadata

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

* Fix linting issue

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

* Update calculation for DroppedMetadata metric

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

* Rename MetadataAppender interface and AppendMetadata method to MetadataUpdater/UpdateMetadata

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

* Reuse buffer when encoding latest metadata for each series

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

* Fix review comments; Check all returned error values using two helpers

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

* Simplify use of helpers

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

* Satisfy linter

Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com>
2022-07-19 10:58:52 +02:00
beorn7 28f028e938 Merge branch 'main' into sparsehistogram 2022-07-12 19:07:13 +02:00
Julien Pivotto c637705403
Merge pull request #10893 from prymitive/unwrap_errors
Implement Unwrap() on errors returned from rulefmt
2022-06-30 11:30:21 +02:00
Matthieu MOREL c2b4de3611
refactor (package model): move from github.com/pkg/errors to 'errors' and 'fmt' packages (#10747)
Signed-off-by: Matthieu MOREL <mmorel-35@users.noreply.github.com>
Co-Authored-By: Julien Pivotto <roidelapluie@gmail.com>

Co-authored-by: Julien Pivotto <roidelapluie@gmail.com>
2022-06-27 21:29:19 +02:00
Łukasz Mierzwa 648b12d8c5 Implement Unwrap() on errors returned from rulefmt
I'd like to unwrap errors returned from rulefmt but both Error and WrappedError types are missing Unwrap() method.

Signed-off-by: Łukasz Mierzwa <l.mierzwa@gmail.com>
2022-06-20 17:01:52 +01:00
beorn7 095b6c93dd Merge branch 'main' into sparsehistogram 2022-06-14 14:27:35 +02:00
Paschalis Tsilias 4f3791024a
Drop extra string held in relabel.Regexp struct (#10846)
* Drop extra string held in relabel.Regexp struct

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

* Use slice operations instead of TrimPrefix/TrimSuffix; Override String() method

Signed-off-by: Paschalis Tsilias <paschalist0@gmail.com>
2022-06-13 15:00:48 +02:00
beorn7 40ad5e284a Merge branch 'main' into beorn7/sparsehistogram 2022-06-09 20:50:30 +02:00
Bryan Boreham 2e2c014d52
Labels: optimise creation of signature with/without labels (#10667)
* Labels: create signature with/without labels

Instead of creating a new Labels slice then converting to signature,
go directly to the signature and save time.

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

* Labels: refactor Builder tests

Have one test with a range of cases, and have them check the final
output rather than checking the internal structure of the Builder.

Also add a couple of cases where the value is "", which should be
interpreted as 'delete'.

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

* Labels: add 'Keep' function to Builder

This lets us replace `Labels.WithLabels` with the more general `Builder`.

In `engine.resultMetric()` we can call `Keep()` instead of checking
and calling `Del()`.

Avoid calling `Sort()` in `Builder.Labels()` if we didn't add anything,
so that `Keep()` has the same performance as `WithLabels()`.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2022-06-07 10:08:27 +05:30
Łukasz Mierzwa b11062bfcc
Don't count added labels when initializing slice (#10756)
This was added in #10749 but based on feedback it might be over-allocating so worth removing.

Signed-off-by: Łukasz Mierzwa <l.mierzwa@gmail.com>
2022-06-04 08:45:02 +05:30
Łukasz Mierzwa 08262454a3
Preallocate Labels in labels.Builder (#10749)
This tries to avoid re-allocations of labels slice since we know possible max size

Signed-off-by: Łukasz Mierzwa <l.mierzwa@gmail.com>
2022-05-25 16:22:47 +02:00
Łukasz Mierzwa 89de30a0b7
Avoid reallocating map in MatchLabels (#10715)
We know the max size of our map so we can create it with that information and avoid extra allocations

Signed-off-by: Łukasz Mierzwa <l.mierzwa@gmail.com>
2022-05-20 10:18:31 +02:00
beorn7 3bc711e333 Merge branch 'main' into sparsehistogram 2022-05-04 13:37:13 +02:00
beorn7 2d233cf95e Histogram: Fix allFloatBucketIterator
If the zero threshold overlaps with the highest negative bucket and/or
the lowest positive bucket, its upper or lower boundary, respectively,
has to be adjusted. In valid histograms, only ever the highest
negative bucket and/or the lowest positive bucket may overlap with the
zero bucket. This is assumed in this code to simplify the checks.

Signed-off-by: beorn7 <beorn@grafana.com>
2022-05-03 16:24:11 +02:00
Julien Pivotto 71dbb4d091
Add lowercase and uppercase relabel action (#10641)
Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu>
2022-05-03 10:09:53 +02:00
Matthieu MOREL e2ede285a2
refactor: move from io/ioutil to io and os packages (#10528)
* refactor: move from io/ioutil to io and os packages
* use fs.DirEntry instead of os.FileInfo after os.ReadDir

Signed-off-by: MOREL Matthieu <matthieu.morel@cnp.fr>
2022-04-27 11:24:36 +02:00
beorn7 56db51c826 Histgram: Fix Compact for spans of only empty buckets
Signed-off-by: beorn7 <beorn@grafana.com>
2022-04-12 00:37:50 +02:00
beorn7 15583af9bb Histogram: Fix crash when compacting only empty buckets
Signed-off-by: beorn7 <beorn@grafana.com>
2022-04-07 16:24:48 +02:00
beorn7 08efde4de5 Adjust to newest gofumpt
Signed-off-by: beorn7 <beorn@grafana.com>
2022-04-05 18:35:01 +02:00
beorn7 7ee1836ef5 Merge branch 'main' into sparsehistogram 2022-04-05 18:31:19 +02:00
Peter Štibraný cd18da3605
Fix OpenMetrics parser to sort uppercase labels correctly. (#10510)
Signed-off-by: Peter Štibraný <pstibrany@gmail.com>
2022-03-31 20:18:53 +02:00
beorn7 f9c411604d Fix spelling errors
Signed-off-by: beorn7 <beorn@grafana.com>
2022-03-22 16:02:13 +01:00
beorn7 4210aac74a Merge branch 'main' into sparsehistogram 2022-03-22 14:47:42 +01:00
beorn7 9fbcf14e5c histogram: Handle changes of the ZeroThreshold and the Schema
Signed-off-by: beorn7 <beorn@grafana.com>
2022-03-17 18:05:31 +01:00
Nick Pillitteri 53ac9d6d66
Compare equality of label.Label structs directly (#10427)
* labels.Equal benchmark for equal, not equal, and differing lengths

Signed-off-by: Nick Pillitteri <nick.pillitteri@grafana.com>

* Compare equality of label.Label structs directly

Compare the structs using `==` instead of the name and value
of each label. This is functionally equivalent and about ~10%
faster in my testing.

Signed-off-by: Nick Pillitteri <nick.pillitteri@grafana.com>

* Use longer more realistic names and values in benchmark

Signed-off-by: Nick Pillitteri <nick.pillitteri@grafana.com>
2022-03-15 00:30:04 +01:00
Levi Harrison a9e2ffb717
Specify type in metadata parser errors (#10269) 2022-03-08 08:04:11 -05:00
Łukasz Mierzwa da23c4649a
Enable misspell check in golangci-lint (#10393)
Signed-off-by: Łukasz Mierzwa <l.mierzwa@gmail.com>
2022-03-03 18:11:19 +01:00
Matthias Loibl afdd1357e0
Merge pull request #10267 from roidelapluie/contenttype
Improve content-type error handling
2022-02-14 11:57:09 +01:00
Julien Pivotto 9a2e93228e
Switch to grafana/regexp everywhere (#10268)
Let's have a consistent library for regexp.

Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
2022-02-13 00:58:27 +01:00
Bryan Boreham 579331446a
Allow downstream projects to use faster regexp (#10251)
* Add benchmark for FastRegexMatcher

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

* Use modified regexp package with optimisations

See https://github.com/grafana/regexp/tree/speedup#readme

Includes the following changes proposed upstream:
* [regexp: allow patterns with no alternates to be one-pass](https://go-review.googlesource.com/c/go/+/353711)
* [regexp: speed up onepass prefix check](https://go-review.googlesource.com/c/go/+/354909)
* [regexp: handle prefix string with fold-case](https://go-review.googlesource.com/c/go/+/358756)
* [regexp: avoid copying each instruction executed](https://go-review.googlesource.com/c/go/+/355789)
* [regexp: allow prefix string anchored at beginning](https://go-review.googlesource.com/c/go/+/377294)

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

* Use regexp code identical to upstream Go

Change `grafana/regexp` import to use `main` branch.

This means Prometheus is not using the proposed optimisations, but
downstream users of Prometheus code are able to `replace` the library
with the `speedup` branch which does.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2022-02-08 11:03:20 +01:00
Julien Pivotto f695df843f Improve content-type error handling
- Call err everywhere
- Change log message to underscore-separated field

Followup on #10186

Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
2022-02-08 11:02:51 +01:00
Matheus Pimenta 8d8ce641a4
error for invalid media type should not be completely swallowed (#10186)
* error for invalid media type should not be completely swallowed

Signed-off-by: Matheus Pimenta <matheuscscp@gmail.com>
2022-02-08 10:57:56 +01:00
Björn Rabenstein ec80745884
Merge pull request #10075 from prometheus/beorn7/histogram
model: Implement FloatHistogram.Compact
2022-01-05 16:09:39 +01:00
beorn7 3b4d6c3fdb model: Implement FloatHistogram.Compact
Signed-off-by: beorn7 <beorn@grafana.com>
2022-01-05 14:34:03 +01:00
beorn7 e7592fe353 sparsehistogram: Address two TODOs
Signed-off-by: beorn7 <beorn@grafana.com>
2022-01-04 12:48:59 +01:00
beorn7 27f865ec49 histograms: avoid initialization tracking in reverseFloatBucketIterator
Signed-off-by: beorn7 <beorn@grafana.com>
2021-12-15 16:56:33 +01:00
beorn7 a6acdfe346 histograms: Doc comment and naming improvements
Signed-off-by: beorn7 <beorn@grafana.com>
2021-12-15 16:50:37 +01:00
Ganesh Vernekar 4a43349aca
`histogram_quantile` for sparse histograms (#9935)
* MergeFloatBucketIterator for []FloatBucketIterator

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* histogram_quantile for histograms

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Fix histogram_quantile

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Unit test and enhancements

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Iterators to iterate buckets in reverse and all buckets together including zero bucket

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Consider all buckets for histogram_quantile and fix the implementation

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Remove unneeded code

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Fix lint

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
2021-12-06 19:17:22 +05:30
Björn Rabenstein 0e1b9dd308
Promql: Initial rate implementation for sparse histograms (#9926)
Signed-off-by: beorn7 <beorn@grafana.com>
2021-12-06 18:19:18 +05:30
Björn Rabenstein 7e42acd3b1
tsdb: Rework iterators (#9877)
- Pick At... method via return value of Next/Seek.
- Do not clobber returned buckets.
- Add partial FloatHistogram suppert.

Note that the promql package is now _only_ dealing with
FloatHistograms, following the idea that PromQL only knows float
values.

As a byproduct, I have removed the histogramSeries metric. In my
understanding, series can have both float and histogram samples, so
that metric doesn't make sense anymore.

As another byproduct, I have converged the sampleBuf and the
histogramSampleBuf in memSeries into one. The sample type stored in
the sampleBuf has been extended to also contain histograms even before
this commit.

Signed-off-by: beorn7 <beorn@grafana.com>
2021-11-29 13:24:23 +05:30
beorn7 6a820a646c histogram: Add FloatHistogram
Including a few adjustments for normal Histogram, too, e.g. use
pointer receiver to avoid the large copy on method calls.

Signed-off-by: beorn7 <beorn@grafana.com>
2021-11-23 19:40:49 +01:00
beorn7 5d4db805ac Merge branch 'main' into sparsehistogram 2021-11-17 19:57:31 +01:00
beorn7 73858d7f82 storage: histogram support in memoized_iterator
Signed-off-by: beorn7 <beorn@grafana.com>
2021-11-15 21:55:58 +01:00
ozairasim 52159840eb
Expose Error function for WrappedError (#9662) 2021-11-12 17:38:59 -05:00
beorn7 f1065e44a4 model: String method for histogram.Histogram
This includes a regular bucket iterator and a string method for
histogram.Bucket.

Signed-off-by: beorn7 <beorn@grafana.com>
2021-11-11 17:29:22 +01:00
beorn7 c954cd9d1d Move packages out of deprecated pkg directory
This creates a new `model` directory and moves all data-model related
packages over there:
  exemplar labels relabel rulefmt textparse timestamp value

All the others are more or less utilities and have been moved to `util`:
  gate logging modetimevfs pool runtime

Signed-off-by: beorn7 <beorn@grafana.com>
2021-11-09 08:03:10 +01:00
beorn7 7a8bb8222c Style cleanup of all the changes in sparsehistogram so far
A lot of this code was hacked together, literally during a
hackathon. This commit intends not to change the code substantially,
but just make the code obey the usual style practices.

A (possibly incomplete) list of areas:

* Generally address linter warnings.

* The `pgk` directory is deprecated as per dev-summit. No new packages should
  be added to it. I moved the new `pkg/histogram` package to `model`
  anticipating what's proposed in #9478.

* Make the naming of the Sparse Histogram more consistent. Including
  abbreviations, there were just too many names for it: SparseHistogram,
  Histogram, Histo, hist, his, shs, h. The idea is to call it "Histogram" in
  general. Only add "Sparse" if it is needed to avoid confusion with
  conventional Histograms (which is rare because the TSDB really has no notion
  of conventional Histograms). Use abbreviations only in local scope, and then
  really abbreviate (not just removing three out of seven letters like in
  "Histo"). This is in the spirit of
  https://github.com/golang/go/wiki/CodeReviewComments#variable-names

* Several other minor name changes.

* A lot of formatting of doc comments. For one, following
  https://github.com/golang/go/wiki/CodeReviewComments#comment-sentences
  , but also layout question, anticipating how things will look like
  when rendered by `godoc` (even where `godoc` doesn't render them
  right now because they are for unexported types or not a doc comment
  at all but just a normal code comment - consistency is queen!).

* Re-enabled `TestQueryLog` and `TestEndopints` (they pass now,
  leaving them disabled was presumably an oversight).

* Bucket iterator for histogram.Histogram is now created with a
  method.

* HistogramChunk.iterator now allows iterator recycling. (I think
  @dieterbe only commented it out because he was confused by the
  question in the comment.)

* HistogramAppender.Append panics now because we decided to treat
  staleness marker differently.

Signed-off-by: beorn7 <beorn@grafana.com>
2021-10-11 13:02:03 +02:00
Bjoern Rabenstein 006b5517e2 Simplify makefiles.
This removes the dependancy on C leveldb and snappy.
It also takes care of fewer dependencies as they would
anyway not work on any non-Debian, non-Brew system.

Change-Id: Ia70dce1ba8a816a003587927e0b3a3f8ad2fd28c
2014-11-25 17:10:39 +01:00
Julius Volz ae30453214 Add label names -> label values index.
Change-Id: Ie39b4044558afc4d1aa937de7dcf8df61f821fb4
2014-03-28 15:16:37 +01:00
Julius Volz 1eee448bc1 Store samples in custom binary encoding.
This has been shown to provide immense decoding speed benefits.

See also:

https://groups.google.com/forum/#!topic/prometheus-developers/FeGl_qzGrYs

Change-Id: I7d45b4650e44ddecaa91dad9d7fdb3cd0b9f15fe
2014-03-09 22:31:38 +01:00
Julius Volz a310afd28f Update "build" -> ".build" in remaining Makefiles. 2013-06-26 16:09:37 +02:00
Matt T. Proud 30b1cf80b5 WIP - Snapshot of Moving to Client Model. 2013-06-25 15:52:42 +02:00
Julius Volz 0226d1ac7a Implement alerts dashboard and expression console links. 2013-06-13 22:35:40 +02:00
Matt T. Proud f895acb9ef Trailing build system cleanups.
The .gitignore files had problems, and the build steps could be
simplified.
2013-06-13 15:38:03 +02:00
Julius Volz fc97e688c6 Improve printing of rules and expressions. 2013-06-11 11:39:31 +02:00
Julius Volz 74cb676537 Implement Stringer interface for rules and all their children. 2013-06-07 15:54:32 +02:00
Julius Volz dcfd09c801 Prepend "exporter_" to labels that already exist in exported metrics.
If the metrics exported by a process already contain any of a target's
base labels (such as "job" or "instance", but also any manually assigned
target-group label), don't overwrite that label, but instead add a new
label consisting of the original label name prepended with "exporter_".
This is to accomodate intermediate exporter jobs, which might indicate
e.g. the jobs and instances for which they are exporting data.
2013-06-02 22:48:46 +02:00
Julius Volz 5b105c77fc Repointerize fingerprints. 2013-05-21 14:28:14 +02:00
Julius Volz 259a0ea467 Optimize fingerprint comparison time. 2013-05-21 14:00:52 +02:00
Matt T. Proud 8f4c7ece92 Destroy naked returns in half of corpus.
The use of naked return values is frowned upon.  This is the first
of two bulk updates to remove them.
2013-05-16 10:53:25 +03:00
Matt T. Proud 244a4a9cdb Update to go1.1.
This commit updates the documentation, Makefiles, formatting, and
code semantics to support the 1.1. runtime, which includes ...

1. ``make advice``,

2. ``make format``, and

3. ``go fix`` on various targets.
2013-05-14 12:39:08 +02:00
Matt T. Proud 161c8fbf9b Include deletion processor for long-tail values.
This commit extracts the model.Values truncation behavior into the actual
tiered storage, which uses it and behaves in a peculiar way—notably the
retention of previous elements if the chunk were to ever go empty.  This is
done to enable interpolation between sparse sample values in the evaluation
cycle.  Nothing necessarily new here—just an extraction.

Now, the model.Values TruncateBefore functionality would do what a user
would expect without any surprises, which is required for the
DeletionProcessor, which may decide to split a large chunk in two if it
determines that the chunk contains the cut-off time.
2013-05-10 12:19:12 +02:00
Matt T. Proud 38d839d810 Include generated Protocol Buffers artifacts.
This commit reduces the general compile time dependencies to omit
the Protocol Buffer compiler and the Go Protocol Buffer generator
tool.  The build steps to furnish them still remain, but they can
optionally be called if data.proto or config.proto are under work.
2013-05-08 21:16:39 +02:00
Matt T. Proud 3b9b1c6ab4 Define dependencies for web. stack concretely.
This commit destroys the use of AppState, which makes passing
concrete state along to various serving components onerous.
2013-05-06 11:13:12 +02:00
Matt T. Proud 6fac20c8af Harden the tests against OOMs.
This commit employs explicit memory freeing for the in-memory storage
arenas.  Secondarily, we take advantage of smaller channel buffer sizes
in the test.
2013-04-29 11:46:01 +02:00
Bernerd Schaefer b04cd28862 Merge pull request #192 from prometheus/feature/negotiate-telemetry-schema-through-mime-type
Use Content-Type data for telemetry versioning
2013-04-29 01:30:37 -07:00
Matt T. Proud b3e34c6658 Implement batch database sample curator.
This commit introduces to Prometheus a batch database sample curator,
which corroborates the high watermarks for sample series against the
curation watermark table to see whether a curator of a given type
needs to be run.

The curator is an abstract executor, which runs various curation
strategies across the database.  It remarks the progress for each
type of curation processor that runs for a given sample series.

A curation procesor is responsible for effectuating the underlying
batch changes that are request.  In this commit, we introduce the
CompactionProcessor, which takes several bits of runtime metadata and
combine sparse sample entries in the database together to form larger
groups.  For instance, for a given series it would be possible to
have the curator effectuate the following grouping:

- Samples Older than Two Weeks: Grouped into Bunches of 10000
- Samples Older than One Week: Grouped into Bunches of 1000
- Samples Older than One Day: Grouped into Bunches of 100
- Samples Older than One Hour: Grouped into Bunches of 10

The benefits hereof of such a compaction are 1. a smaller search
space in the database keyspace, 2. better employment of compression
for repetious values, and 3. reduced seek times.
2013-04-27 17:38:18 +02:00
juliusv 348b527f89 Merge pull request #194 from prometheus/julius-alert-tracking
Track alerts over time and write out alert timeseries.
2013-04-26 05:40:36 -07:00
Julius Volz 2202cd71c9 Track alerts over time and write out alert timeseries. 2013-04-26 14:35:21 +02:00
Bernerd Schaefer dfd5c9ce28 Refactor processor for 0.0.2 schema
Primary changes:

* Strictly typed unmarshalling of metric values
* Schema types are contained by the processor (no "type entity002")

Minor changes:

* Added ProcessorFunc type for expressing processors as simple
  functions.
* Added non-destructive `Merge` method to `model.LabelSet`
2013-04-26 11:52:26 +02:00
Julius Volz d4ff85db5a Add instance label to health (up) timeseries. 2013-04-24 21:50:49 +02:00
Matt T. Proud 9e02c2393a Include generated Protocol Buffer descriptor.
The Protocol Buffer compiler supports generating a machine-readable
descriptor file encoded as a provided Protocol Buffer message type,
which can be used to decode messages that have been encoded with it
after-the-fact.  The generated descriptor also bundles in dependent
message types.

We can use this to perform forensics on old Prometheus clients, if
necessary.
2013-04-24 16:59:40 +02:00
juliusv af7ddc36e2 Merge pull request #176 from prometheus/optimization/view-materialization/slice-chunking
Truncate irrelevant chunk values.
2013-04-24 05:19:54 -07:00
Julius Volz 9b8c671ec9 Fixes/cleanups to renderView() samples truncation. 2013-04-24 12:42:58 +02:00
Matt T. Proud e86f4d9dfd Convert time readers to represent time in UTC.
Go's time.Time represents time as UTC in its fundamental data type.
That said, when using ``time.Unix(...)``, it sets the zone for the
time representation to the local.  Unfortunately with diagnosis and
our tests, it is a PITA to jump between various zones, even though
the serialized version remains the same.

To keep things easy, all places where times are generated or read
are converted into UTC.  These conversions are cheap, for
``Time.In`` merely changes a pointer reference in the struct,
nothing more.  This enables me to diagnose test failures with fixture
data very easily.
2013-04-24 12:19:41 +02:00
Matt T. Proud 05504d3642 WIP - Truncate irrelevant chunk values.
This does not work with the view tests.
2013-04-24 11:07:22 +02:00
Matt T. Proud b1a8e51b07 Extract dto.SampleValueSeries into model.Values. 2013-04-22 13:31:11 +02:00
Matt T. Proud db4ffbb262 Wrap dto.SampleKey with business logic type.
The curator work can be done easier if dto.SampleKey is no longer
directly accessed but rather has a higher level type around it that
captures a certain modicum of business logic.  This doesn't look
terribly interesting today, but it will get more so.
2013-04-21 20:38:39 +02:00
Matt T. Proud f9e99bd08a Refresh SampleValue to 64-bit floating point.
We always knew that this needed to be fixed.
2013-04-21 20:31:50 +02:00
Julius Volz 99dcbe0f94 Integrate memory and disk layers in view rendering. 2013-04-19 16:01:27 +02:00
juliusv 7c544c91c6 Merge pull request #151 from prometheus/julius-synth-vars
Record scrape health timeseries per target.
2013-04-17 05:48:26 -07:00
Matt T. Proud 32c0a939b0 New self-sustaining, hermetic build system.
This should help us produce self-contained artifacts for users as
well as lower the hurdles for first-time contributors.
2013-04-17 09:34:24 +02:00
Julius Volz 8c9e9632a8 Record scrape health timeseries per target. 2013-04-16 19:01:26 +02:00
Julius Volz a0d311c9e6 Constantize job name label. 2013-04-15 11:47:54 +02:00
Julius Volz fd554e8b89 Make LevelDB sample keys fixed-length to ensure correct sort-order. 2013-04-11 18:17:44 +02:00
Julius Volz ebe05d1b83 Fix logic bug in fingerprint Less() comparison.
Seems like just using String() is the easiest way of doing this.
2013-04-09 11:43:12 +02:00
Julius Volz 0230dbf305 Fix off-by-one bug in NewFingerprintFromMetric(). 2013-04-09 02:36:38 +02:00
Matt T. Proud c53a72a894 Test data for the curator. 2013-03-27 18:13:43 +01:00
Julius Volz 2b8f0b2cc7 Constantize metric name label name. 2013-03-26 16:20:23 +01:00
Matt T. Proud 3e97a3630d Include nascent curator scaffolding.
The curator doesn't do anything yet; rather, this is the type
definition including the anciliary testing scaffold.

Improve Makefile and Git developer experience.

The top-level Makefile was a bit overloaded in terms of generation of
assets and their management.  This has been offloaded into separate
Makefiles.

The Git developer experience sucked due to lack of .gitignore
policies.

Also: Fix faulty skiplist naming from old merge.
2013-03-25 19:38:14 +01:00
Julius Volz bf78d427be Fix compile error in metric helper function. 2013-03-21 18:11:03 +01:00
Matt T. Proud 4e73c4c204 Include interval test. 2013-03-21 18:11:03 +01:00
Matt T. Proud 1f7ed52b46 Start writing high watermarks. 2013-03-21 18:08:48 +01:00
Matt T. Proud 84acfed061 Extract finding unindexed metrics. 2013-03-21 18:08:48 +01:00
Matt T. Proud 8cc5cdde0b checkpoint. 2013-03-21 18:08:46 +01:00
Matt T. Proud f39b9c3c8e Checkpoint. 2013-03-21 18:06:51 +01:00
Matt T. Proud 41068c2e84 Checkpoint. 2013-03-21 18:06:51 +01:00
Matt T. Proud 05a9c3cd0b Improve the base label representation in /status.
The base label representation under /status needs improvement to
enhance readability; namely, add sorting and make the label
representation concise.
2013-03-21 12:08:18 +01:00
Matt T. Proud 13ae29b304 Initial in-memory arena implementation.
It is unbounded, and nothing uses it except for a gating flag in main.
2013-02-18 09:38:14 -06:00
Matt T. Proud 4502b49524 Swap out fingerprinting infrastructure.
All old database entries should be deleted.  :-(
2013-02-08 15:58:53 +01:00
Matt T. Proud 1c74eedf76 Create initial Metric fingerprinter.
The old system relies off of super-careful notion that the serialized
form of a Protocol Buffer should be used for fingerprint formulation.
Of course this is both wrong and inefficient.  This commit breaks
ground for swapping to a pure attribute-oriented digest.
2013-02-08 13:05:35 +01:00
Julius Volz d67e4b9131 Address outstanding comments from PR/47 and other cleanups. 2013-02-07 11:38:01 +01:00
Matt T. Proud ea54751431 Update import paths to new location.
This repository moved from matttproud/prometheus to
prometheus/prometheus, and all import paths need to be updated.
2013-01-27 18:49:45 +01:00
Julius Volz a20bf35997 Fix whitespace with "make format". 2013-01-22 02:27:26 +01:00
Julius Volz ebabaa46f4 Serialize matrices correctly. 2013-01-22 02:27:26 +01:00
Julius Volz af88afaf5a Remove unneeded String() method for SampleValue type. 2013-01-04 12:12:18 +01:00
Matt T. Proud a14dbd5bd0 Interim commit for Julius. 2012-12-19 20:34:54 +01:00
Matt T. Proud 59a708f25a Provide prototype of storage layer interfaces. 2012-12-12 12:13:27 +01:00
Matt T. Proud 6589fc92f8 Strip web services, which weren't adding value. 2012-12-12 12:04:46 +01:00
Matt T. Proud 577acf4fe7 Exploding the storage infrastructure by contexts. 2012-12-09 16:27:12 +01:00
Matt T. Proud 15a6681651 Various cleanups.
Kill LevelDB watermarks due to redundancy.

General interface documentation has begun.

Creating custom types for the model to prevent errors down the
road.

Renaming of components for easier comprehension.

Exposition of interface in LevelDB.

Slew of simple refactorings.
2012-12-08 14:03:08 +01:00
Matt T. Proud c0ce859c76 A few re-organizations. 2012-11-29 20:55:30 +01:00
Matt T. Proud 044a5b4e14 Add nascent Travis CI configuration. 2012-11-29 20:00:09 +01:00
Matt T. Proud 44f8802ae7 Add Apache License 2.0 boilerplate. 2012-11-26 20:11:34 +01:00
Matt T. Proud 2bbdaa5790 Initial directory re-arrangement for storage. 2012-11-26 19:56:51 +01:00
Matt T. Proud 6072143505 Initial commit of external resources. 2012-11-24 12:33:34 +01:00