prometheus

Commit Graph

Author	SHA1	Message	Date
Björn Rabenstein	b866db009b	storage: Fix and improve the Seek method of various iterators (#9878 ) There was a subtle and nasty bug in listSeriesIterator.Seek. In addition, the Seek call is defined to be a no-op if the current position of the iterator is already pointing to a suitable sample. This commit adds fast paths for this case to several potentially expensive Seek calls. Another bug was in concreteSeriesIterator.Seek. It always searched the whole series and not from the current position of the iterator. Signed-off-by: beorn7 <beorn@grafana.com>	3 years ago
Bryan Boreham	1b74a3812e	Fix panic, out of order chunks, and race warning during WAL replay (#9856 ) * Fix panic on WAL replay Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> * Refactor: introduce walSubsetProcessor walSubsetProcessor packages up the `processWALSamples()` function and its input and output channels, helping to clarify how these things relate. Signed-off-by: Bryan Boreham <bjboreham@gmail.com> * Refactor: extract more methods onto walSubsetProcessor This makes the main logic easier to follow. Signed-off-by: Bryan Boreham <bjboreham@gmail.com> * Fix race warning by locking processWALSamples Although we have waited for the processor to finish, we still get a warning from the race detector because it doesn't know how the different parts relate. Add a lock round each batch of samples, so the race detector can see that we never access series owned by the processor outside of a lock. Signed-off-by: Bryan Boreham <bjboreham@gmail.com> * Added test to reproduce issue 9859 Signed-off-by: Marco Pracucci <marco@pracucci.com> * Remove redundant unit test Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> * Fix out of order chunks during WAL replay Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> * Fix nits Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> Co-authored-by: Ganesh Vernekar <ganeshvern@gmail.com> Co-authored-by: Marco Pracucci <marco@pracucci.com>	3 years ago
Oleg Zaytsev	5e746e4e88	Check postings bytes length when decoding (#9766 ) Added validation to expected postings length compared to the bytes slice length. With 32bit postings, we expect to have 4 bytes per each posting. If the number doesn't add up, we know that the input data is not compatible with our code (maybe it's cut, or padded with trash, or even written in a different coded). This is needed in downstream projects to correctly identify cached postings written with an unknown codec, but it's also a good idea to validate it here. Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>	3 years ago
Darshan Chaudhary	9dcf8b2208	Add the ability to disable tsdb isolation (#9270 ) * Disable isolation in isolation struct Signed-off-by: darshanime <deathbullet@gmail.com> * Run tsdb tests with isolation disabled Signed-off-by: darshanime <deathbullet@gmail.com> * Check for isolation disabled in isoState.Close() Signed-off-by: darshanime <deathbullet@gmail.com> * use t.Skip to skip isolation tests when disabled Signed-off-by: darshanime <deathbullet@gmail.com> * address review comments Signed-off-by: darshanime <deathbullet@gmail.com> * fix test for defaultIsolationState Signed-off-by: darshanime <deathbullet@gmail.com> * Change flag name. Set flag in DB. Do not init txRing. Close isoState. Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> * Test disabled isolation in CircleCI test_go Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> * Skip isolation related tests in db_test.go Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> Co-authored-by: Ganesh Vernekar <ganeshvern@gmail.com>	3 years ago
Dieter Plaetinck	067efc3725	clarify HeadChunkID type and usage (#9726 ) Signed-off-by: Dieter Plaetinck <dieter@grafana.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>	3 years ago
Sunil Thaha	a484a83d4a	fix: panic when checkpoint directory is empty (#9687 ) Calling `wal.NewSegmentBufReader()` without any segments would cause a `panic` resulting in prometheus crashing. This patch fixes the panic by making segmentBufReader return a EOF if there are not segments. This also means an empty checkpoint directory which should never be the case unless it has been tampered with (or has issues due to the underlying filesystem e.g. NFS) would be ignored by Prometheus and would continue to run instead of the current behaviour which is to panic. Fixes: https://github.com/prometheus/prometheus/issues/9605 Signed-off-by: Sunil Thaha <sthaha@redhat.com>	3 years ago
Dieter Plaetinck	0fac9bb859	Add basic initial developer docs for TSDB (#9451 ) * Add basic initial developer docs for TSDB There's a decent amount of content already out there (blog posts, conference talks, etc), but: * when they get stale, they don't tend to get updated * they still leave me with questions that I'ld like to answer for developers (like me) who want to use, or work with, TSDB What I propose is developer docs inside the prometheus repository. Easy to find and harness the power of the community to expand it and keep it up to date. * perfect is the enemy of good. Let's have a base and incrementally improve * Markdown docs should be broad but not too deep. Source code comments can complement them, and are the ideal place for implementation details. Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * use example code that works out of the box Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * Apply suggestions from code review Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * PR feedback Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * more docs Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * PR feedback Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * Apply suggestions from code review Signed-off-by: Dieter Plaetinck <dieter@grafana.com> Co-authored-by: Bartlomiej Plotka <bwplotka@gmail.com> * Apply suggestions from code review Signed-off-by: Dieter Plaetinck <dieter@grafana.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> * feedback Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * Update tsdb/docs/usage.md Signed-off-by: Dieter Plaetinck <dieter@grafana.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> * final tweaks Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * workaround docs versioning issue Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * Move example code to real executable, testable example. Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * cleanup example test and make sure it always reproduces Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * obtain temp dir in a way that works with older Go versions Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * Fix Ganesh's comments Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> Co-authored-by: Bartlomiej Plotka <bwplotka@gmail.com> Co-authored-by: Ganesh Vernekar <ganeshvern@gmail.com>	3 years ago
Mauro Stettler	8a4f659126	fix error message Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>	3 years ago
Robert Fratto	72a9f7fee9	Share TSDB locker code with agent (#9623 ) * share tsdb db locker code with agent Closes #9616 Signed-off-by: Robert Fratto <robertfratto@gmail.com> * add flag to disable lockfile for agent Signed-off-by: Robert Fratto <robertfratto@gmail.com> * use agentOnlySetting instead of PreAction Signed-off-by: Robert Fratto <robertfratto@gmail.com> * tsdb: address review feedback 1. Rename Locker to DirLocker 2. Move DirLocker to tsdb/tsdbutil 3. Name metric using fmt.Sprintf 4. Refine error checking in DirLocker test Signed-off-by: Robert Fratto <robertfratto@gmail.com> * tsdb: create test utilities to assert expected DirLocker behavior Signed-off-by: Robert Fratto <robertfratto@gmail.com> * tsdb/tsdbutil: fix lint errors Signed-off-by: Robert Fratto <robertfratto@gmail.com> * tsdb/agent: fix windows test failure Use new DB variable instead of overriding the old one. Signed-off-by: Robert Fratto <robertfratto@gmail.com>	3 years ago
Peter Štibraný	422e7839d4	Add more size checks when writing individual sections in the index. (#9710 ) * Add more size checks when writing individual sections in the index. Signed-off-by: Peter Štibraný <pstibrany@gmail.com> * Use uint and add comment about it. Signed-off-by: Peter Štibraný <pstibrany@gmail.com>	3 years ago
Mateusz Gozdek	83086aee00	tsdb/agent: use unique registry per tests So tests can run in parallel. Signed-off-by: Mateusz Gozdek <mgozdekof@gmail.com>	3 years ago
Mateusz Gozdek	2f312ff4c5	tsdb: mark TestTombstoneCleanRetentionLimitsRace test as slow It takes over 100 seconds to execute this test, so I'd consider it as slow. Signed-off-by: Mateusz Gozdek <mgozdekof@gmail.com>	3 years ago
Levi Harrison	7400e07fa9	Close DB in Agent tests (#9630 ) * Close agent db in tests Signed-off-by: Levi Harrison <git@leviharrison.dev> * Close first DB before opening second Signed-off-by: Levi Harrison <git@leviharrison.dev> * Use seperate variables for different DBs? Signed-off-by: Levi Harrison <git@leviharrison.dev> * Close remote storage Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu> * Fix closing of stuff Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> * Remove the build flags after a rebase Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> * Fix closing of stuff 2 Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> Co-authored-by: Julien Pivotto <roidelapluie@inuits.eu> Co-authored-by: Ganesh Vernekar <ganeshvern@gmail.com>	3 years ago
Mateusz Gozdek	f4650c27e7	tsdb/wal: fix flaky TestReaderFuzz* tests It seems sometimes you can get error like: Error: Not equal: expected: []byte(nil) actual : []byte{} Diff: --- Expected +++ Actual @@ -1,2 +1,3 @@ -([]uint8) <nil> +([]uint8) { +} This commit does what bytes.Equal does to silence those differences. I'm not sure if this is a correct solution or just covering up the actual bug. Closes #9574 Signed-off-by: Mateusz Gozdek <mgozdekof@gmail.com>	3 years ago
Björn Rabenstein	4c56a193c5	Merge pull request #9478 from prometheus/beorn7/pkg-deprecation Move packages out of deprecated pkg directory	3 years ago
曹明	a0d31c28fc	tsdb: Add windows arm64 support. Signed-off-by: 曹明 <caoming1@kingsoft.com>	3 years ago
Mateusz Gozdek	b319b14431	tsdb/chunks: preallocate at least some space on non-Windows systems (#9581 ) To avoid potential chunk corruption read, which I am not sure why is happening. Closes #9561. Signed-off-by: Mateusz Gozdek <mgozdekof@gmail.com>	3 years ago
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>	3 years ago
beorn7	a1e595edac	Fix two trivial lint warnings Not sure why those show up for me locally but not if run by the CI. Signed-off-by: beorn7 <beorn@grafana.com>	3 years ago
Dieter Plaetinck	cda025b5b5	TSDB: demistify SeriesRefs and ChunkRefs (#9536 ) * TSDB: demistify seriesRefs and ChunkRefs The TSDB package contains many types of series and chunk references, all shrouded in uint types. Often the same uint value may actually mean one of different types, in non-obvious ways. This PR aims to clarify the code and help navigating to relevant docs, usage, etc much quicker. Concretely: * Use appropriately named types and document their semantics and relations. * Make multiplexing and demuxing of types explicit (on the boundaries between concrete implementations and generic interfaces). * Casting between different types should be free. None of the changes should have any impact on how the code runs. TODO: Implement BlockSeriesRef where appropriate (for a future PR) Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * feedback Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * agent: demistify seriesRefs and ChunkRefs Signed-off-by: Dieter Plaetinck <dieter@grafana.com>	3 years ago
johncming	b882d2b7c7	tsdb/wal: Avoid writing closed channel. (#9566 ) Signed-off-by: johncming <johncming@yahoo.com>	3 years ago
chenlujjj	d18e42c650	refine comments of Checkpoint function (#9655 ) Signed-off-by: chenlujjj <953546398@qq.com>	3 years ago
Marco Pracucci	309b094b92	Optimized MemPostings.EnsureOrder() (#9673 ) * Optimizes MemPostings.EnsureOrder() Signed-off-by: Marco Pracucci <marco@pracucci.com> * Ignore linter warning Signed-off-by: Marco Pracucci <marco@pracucci.com>	3 years ago
Marco Pracucci	9f5ff5b269	Allow to disable trimming when querying TSDB (#9647 ) * Allow to disable trimming when querying TSDB Signed-off-by: Marco Pracucci <marco@pracucci.com> * Addressed review comments Signed-off-by: Marco Pracucci <marco@pracucci.com> * Added unit test Signed-off-by: Marco Pracucci <marco@pracucci.com> * Renamed TrimDisabled to DisableTrimming Signed-off-by: Marco Pracucci <marco@pracucci.com>	3 years ago
Marco Pracucci	edd05d7010	Add Head.AppendableMinValidTime() (#9643 ) Signed-off-by: Marco Pracucci <marco@pracucci.com>	3 years ago
Mateusz Gozdek	b7bdf6fab2	Fix imports formatting According to `2829908806 (r58457095)`. Signed-off-by: Mateusz Gozdek <mgozdekof@gmail.com>	3 years ago
Mateusz Gozdek	1a6c2283a3	Format Go source files using 'gofumpt -w -s -extra' Part of #9557 Signed-off-by: Mateusz Gozdek <mgozdekof@gmail.com>	3 years ago
Julien Pivotto	6e1d6edb33	Exclude agent from windows tests (#9645 ) We are aware of the issue, but while we are working on it, having main tests broken is an annoyance. Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>	3 years ago
chenlujjj	660329d5b3	add tombstoneFormatVersionSize & tombstonesCRCSize constants (#9625 ) Signed-off-by: chenlujjj <953546398@qq.com>	3 years ago
Praveen Ghuge	64d9b41998	Use testing.T.TempDir() instead of ioutil.TempDir() in tsdb/wal unit tests (#9602 ) Signed-off-by: Praveen Ghuge <praveen.ghuge@outlook.com>	3 years ago
Robert Fratto	bc72a718c4	Initial draft of prometheus-agent (#8785 ) * Initial draft of prometheus-agent This commit introduces a new binary, prometheus-agent, based on the Grafana Agent code. It runs a WAL-only version of prometheus without the TSDB, alerting, or rule evaluations. It is intended to be used to remote_write to Prometheus or another remote_write receiver. By default, prometheus-agent will listen on port 9095 to not collide with the prometheus default of 9090. Truncation of the WAL cooperates on a best-effort case with Remote Write. Every time the WAL is truncated, the minimum timestamp of data to truncate is determined by the lowest sent timestamp of all samples across all remote_write endpoints. This gives loose guarantees that data from the WAL will not try to be removed until the maximum sample lifetime passes or remote_write starts functionining. Signed-off-by: Robert Fratto <robertfratto@gmail.com> * add tests for Prometheus agent (#22) * add tests for Prometheus agent * add tests for Prometheus agent * rearranged tests as per the review comments * update tests for Agent * changes as per code review comments Signed-off-by: SriKrishna Paparaju <paparaju@gmail.com> * incremental changes to prometheus agent Signed-off-by: SriKrishna Paparaju <paparaju@gmail.com> * changes as per code review comments Signed-off-by: SriKrishna Paparaju <paparaju@gmail.com> * Commit feedback from code review Co-authored-by: Bartlomiej Plotka <bwplotka@gmail.com> Co-authored-by: Ganesh Vernekar <ganeshvern@gmail.com> Signed-off-by: Robert Fratto <robertfratto@gmail.com> * Port over some comments from grafana/agent Signed-off-by: Robert Fratto <robertfratto@gmail.com> * Rename agent.Storage to agent.DB for tsdb consistency Signed-off-by: Robert Fratto <robertfratto@gmail.com> * Consolidate agentMode ifs in cmd/prometheus/main.go Signed-off-by: Robert Fratto <robertfratto@gmail.com> * Document PreAction usage requirements better for agent mode flags Signed-off-by: Robert Fratto <robertfratto@gmail.com> * remove unnecessary defaultListenAddr Signed-off-by: Robert Fratto <robertfratto@gmail.com> * `go fmt ./tsdb/agent` and fix lint errors Signed-off-by: Robert Fratto <robertfratto@gmail.com> Co-authored-by: SriKrishna Paparaju <paparaju@gmail.com>	3 years ago
Xiaochao Dong	c2d1c85857	close tsdb.head in test case (#9580 ) Signed-off-by: Xiaochao Dong (@damnever) <the.xcdong@gmail.com>	3 years ago
Furkan Türkal	0c07663b70	fix: possible race on shared variables in test (#9470 ) Fixes #9433 Signed-off-by: Furkan <furkan.turkal@trendyol.com>	3 years ago
Dieter Plaetinck	d5bfbe3114	improve bstream comments and doc (#9560 ) * improve bstream comments and doc Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * feedback Signed-off-by: Dieter Plaetinck <dieter@grafana.com>	3 years ago
Julien Pivotto	73255e15f6	Address golint failures from revive Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>	3 years ago
Serge Catudal	8c3eca84db	Fix remote write receiver endpoint for exemplars (#9414 ) Signed-off-by: Serge Catudal <serge.catudal@gmail.com>	3 years ago
Dieter Plaetinck	d5afe0a577	TSDB: Use a dedicated head chunk reference type (#9501 ) * Use dedicated Ref type Throughout the code base, there are reference types masked as regular integers. Let's use dedicated types. They are equivalent, but clearer semantically. This also makes it trivial to find where they are used, and from uses, find the centralized docs. Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * postpone some work until after possible return Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * clarify Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * rename feedback Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * skip header is up to caller Signed-off-by: Dieter Plaetinck <dieter@grafana.com>	3 years ago
Ganesh Vernekar	10d4cb6dc0	Merge remote-tracking branch 'upstream/main' into release-2.30-merge	3 years ago
Ganesh Vernekar	10bc6e80ee	Fix panic on failed snapshot replay and don't hard fail replay on disabled exemplars (#9438 ) Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>	3 years ago
Ganesh Vernekar	b30db03f35	Cut v2.30.2 (#9426 ) * Don't error on overlapping m-mapped chunks during WAL replay (#9381) Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> * Reduce log level during WAL replay on overlapping m-map chunks (#9425) Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> * Cut v2.30.2 Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>	3 years ago
Ganesh Vernekar	a7d499e19a	Reduce log level during WAL replay on overlapping m-map chunks (#9425 ) Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>	3 years ago
Ganesh Vernekar	8c597e5166	Don't error on overlapping m-mapped chunks during WAL replay (#9381 ) Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>	3 years ago
Bryan Boreham	1fb3c1b598	Replace calls to strings.Compare (#9397 ) < is clearer and faster. As the documentation says, "Basically no one should use strings.Compare." Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	3 years ago
Ganesh Vernekar	2bcd9f2f69	Link 2 more TSDB blog posts in tsdb/README.md (#9371 ) Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>	3 years ago
Darshan Chaudhary	1f688657bf	Call delete on head if interval overlaps (#9151 ) * Call delete on head if interval overlaps Signed-off-by: darshanime <deathbullet@gmail.com> * Garbage collect tombstones during head gc Signed-off-by: darshanime <deathbullet@gmail.com> * Truncate tombstones before min time during head gc Signed-off-by: darshanime <deathbullet@gmail.com> * Lock less by deleting all keys in a single pass Signed-off-by: darshanime <deathbullet@gmail.com> * Pass map to DeleteTombstones Signed-off-by: darshanime <deathbullet@gmail.com> * Create new slice to replace old one Signed-off-by: darshanime <deathbullet@gmail.com>	3 years ago
Ganesh Vernekar	30534e99d9	Take snapshot only after closing the WAL (#9328 ) Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>	3 years ago
Ganesh Vernekar	8944520ccc	Fix deletion of old snapshots (#9314 ) Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>	3 years ago
Bryan Boreham	2327236bb5	Decrement active_appenders metric when no samples added (#9230 ) * Decrement active_appenders metric when no samples added Also add a test that the metric is incremented and decremented as expected with and without samples. Signed-off-by: Bryan Boreham <bjboreham@gmail.com> * Fix comment Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> Co-authored-by: Ganesh Vernekar <ganeshvern@gmail.com>	3 years ago
Bryan Boreham	87d909df4a	Remove symbols map from TSDB head (#9301 ) This saves memory, effort and locking. Since every symbol is also added to postings, `Symbols()` can be implemented there instead. This now has to build a map for deduplication, but `Symbols()` is only called for compaction, and `gc()` used to rebuild the symbols map after every compaction so not an additional cost. Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	3 years ago
Callum Styan	93886d8417	Fix div by 0 panic is resize function. (#9286 ) Signed-off-by: Callum Styan <callumstyan@gmail.com>	3 years ago

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417 Commits (b866db009ba2271edf532d50b38afef27c8469ba)