prometheus

Commit Graph

Author	SHA1	Message	Date
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
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
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
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
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
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
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
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
Levi Harrison	06afe6162c	Also ignore `func1` Signed-off-by: Levi Harrison <git@leviharrison.dev>	3 years ago
Ganesh Vernekar	59d02b5ef0	tsdb: Block Head GC till pending readers are done reading (#9081 ) * tsdb: Block Head GC till pending readers are done reading Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> * Fix review comments Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> * Fix review comments 2 Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> * Fix the exclusiveness of maxt in WaitForPendingReadersInTimeRange Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>	3 years ago
Levi Harrison	437c470c40	Added ignore Signed-off-by: Levi Harrison <git@leviharrison.dev>	3 years ago
Julien Pivotto	b1c179be85	Fix main build (#8948 ) Was broken after the merge of #8824 Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>	3 years ago
Julien Duchesne	8855c2e626	Add `prometheus_tsdb_clean_start` metric (#8824 ) Add cleanup of the lockfile when the db is cleanly closed The metric describes the status of the lockfile on startup 0: Already existed 1: Did not exist -1: Disabled Therefore, if the min value over time of this metric is 0, that means that executions have exited uncleanly We can then use that metric to have a much lower threshold on the crashlooping alert: If the metric exists and it has been zero, two restarts is enough to trigger the alarm If it does not exist (old prom version for example), the current five restarts threshold remains Signed-off-by: Julien Duchesne <julien.duchesne@grafana.com> * Change metric name + set unset value to -1 Signed-off-by: Julien Duchesne <julien.duchesne@grafana.com> * Only check the last value of the clean start alert Signed-off-by: Julien Duchesne <julien.duchesne@grafana.com> * Fix test + nit Signed-off-by: Julien Duchesne <julien.duchesne@grafana.com>	3 years ago
Levi Harrison	b5f6f8fb36	Switched to go-kit/log Signed-off-by: Levi Harrison <git@leviharrison.dev>	4 years ago
Levi Harrison	7bc11dcb06	React UI: Add Starting Screen (#8662 ) * Added walreplay API endpoint Signed-off-by: Levi Harrison <git@leviharrison.dev> * Added starting page to react-ui Signed-off-by: Levi Harrison <git@leviharrison.dev> * Documented the new endpoint Signed-off-by: Levi Harrison <git@leviharrison.dev> * Fixed typos Signed-off-by: Levi Harrison <git@leviharrison.dev> Co-authored-by: Julius Volz <julius.volz@gmail.com> * Removed logo Signed-off-by: Levi Harrison <git@leviharrison.dev> * Changed isResponding to isUnexpected Signed-off-by: Levi Harrison <git@leviharrison.dev> * Changed width of progress bar Signed-off-by: Levi Harrison <git@leviharrison.dev> * Changed width of progress bar Signed-off-by: Levi Harrison <git@leviharrison.dev> * Added DB stats object Signed-off-by: Levi Harrison <git@leviharrison.dev> * Updated starting page to work with new fields Signed-off-by: Levi Harrison <git@leviharrison.dev> * Passing nil Signed-off-by: Levi Harrison <git@leviharrison.dev> * Passing nil (pt. 2) Signed-off-by: Levi Harrison <git@leviharrison.dev> * Passing nil (pt. 3) Signed-off-by: Levi Harrison <git@leviharrison.dev> * Passing nil (and also implementing a method this time) (pt. 4) Signed-off-by: Levi Harrison <git@leviharrison.dev> * Passing nil (and also implementing a method this time) (pt. 5) Signed-off-by: Levi Harrison <git@leviharrison.dev> * Changed const to let Signed-off-by: Levi Harrison <git@leviharrison.dev> * Passing nil (pt. 6) Signed-off-by: Levi Harrison <git@leviharrison.dev> * Remove SetStats method Signed-off-by: Levi Harrison <git@leviharrison.dev> * Added comma Signed-off-by: Levi Harrison <git@leviharrison.dev> * Changed api Signed-off-by: Levi Harrison <git@leviharrison.dev> * Changed to triple equals Signed-off-by: Levi Harrison <git@leviharrison.dev> * Fixed data response types Signed-off-by: Levi Harrison <git@leviharrison.dev> * Don't return pointer Signed-off-by: Levi Harrison <git@leviharrison.dev> * Changed version Signed-off-by: Levi Harrison <git@leviharrison.dev> * Fixed interface issue Signed-off-by: Levi Harrison <git@leviharrison.dev> * Fixed pointer Signed-off-by: Levi Harrison <git@leviharrison.dev> * Fixed copying lock value error Signed-off-by: Levi Harrison <git@leviharrison.dev> Co-authored-by: Julius Volz <julius.volz@gmail.com>	4 years ago
Marco Pracucci	4b49ffbad5	Stop the bleed on chunk mapper panic (#8723 ) * Added test to reproduce panic on TSDB head chunks truncated while querying Signed-off-by: Marco Pracucci <marco@pracucci.com> * Added test for Querier too Signed-off-by: Marco Pracucci <marco@pracucci.com> * Stop the bleed on mmap-ed head chunks panic Signed-off-by: Marco Pracucci <marco@pracucci.com> * Lower memory pressure in tests to ensure it doesn't OOM Signed-off-by: Marco Pracucci <marco@pracucci.com> * Skip TestQuerier_ShouldNotPanicIfHeadChunkIsTruncatedWhileReadingQueriedChunks Signed-off-by: Marco Pracucci <marco@pracucci.com> * Experiment to not trigger runtime.GC() continuously Signed-off-by: Marco Pracucci <marco@pracucci.com> * Try to fix test in CI Signed-off-by: Marco Pracucci <marco@pracucci.com> * Do not call runtime.GC() at all Signed-off-by: Marco Pracucci <marco@pracucci.com> * I have no idea why it's failing in CI, skipping tests Signed-off-by: Marco Pracucci <marco@pracucci.com>	4 years ago
Julien Pivotto	889dd0bbd3	Fix DB tests in the default branch The main branch tests are not passing due to the fact that #8489 was not rebased on top of #8007. Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>	4 years ago
Tom Wilkie	7369561305	Combine Appender.Add and AddFast into a single Append method. (#8489 ) This moves the label lookup into TSDB, whilst still keeping the cached-ref optimisation for repeated Appends. This makes the API easier to consume and implement. In particular this change is motivated by the scrape-time-aggregation work, which I don't think is possible to implement without it as it needs access to label values. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>	4 years ago
Arthur Silva Sens	6a3d55db0a	Rolling tombstones clean up (#8007 ) * CleanupTombstones refactored, now reloading blocks after every compaction. The goal is to remove deletable blocks after every compaction and, thus, decrease disk space used when cleaning tombstones. Signed-off-by: arthursens <arthursens2005@gmail.com> * Protect DB against parallel reloads Signed-off-by: ArthurSens <arthursens2005@gmail.com> * Fix typos Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> Co-authored-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	4 years ago
Nguyen Le Vu Long	fbe960f2c1	fix: remove pre-2.21 tmp blocks on start (#8353 ) * fix: remove pre-2.21 tmp blocks on start Signed-off-by: Nguyen Le Vu Long <vulongvn98@gmail.com> * fix: commenting Signed-off-by: Nguyen Le Vu Long <vulongvn98@gmail.com>	4 years ago
Marco Pracucci	db19e05d93	Add option to customise head chunks write buffer size (#8201 ) * Add option to customise head chunks write buffer size Signed-off-by: Marco Pracucci <marco@pracucci.com> * Fixed tests Signed-off-by: Marco Pracucci <marco@pracucci.com>	4 years ago
Julien Pivotto	8bc369bf9b	Calculate head chunk size based on actual disk usage (#8139 ) Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>	4 years ago
Julien Pivotto	6c56a1faaa	Testify: move to require (#8122 ) * Testify: move to require Moving testify to require to fail tests early in case of errors. Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu> * More moves Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>	4 years ago
Ganesh Vernekar	3245b3267b	Don't use returned DB to close resources on TSDB startup error (#8113 ) * Don't use returned DB to close resources on TSDB startup error Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Add unit test and fix another panic Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Fix review comment Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	4 years ago
Julien Pivotto	1282d1b39c	Refactor test assertions (#8110 ) * Refactor test assertions This pull request gets rid of assert.True where possible to use fine-grained assertions. Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>	4 years ago
Julien Pivotto	4e5b1722b3	Move away from testutil, refactor imports (#8087 ) Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>	4 years ago
Bartlomiej Plotka	2fe1e9fa93	Create a checkpoint only at the end of Compact call (#8067 ) * Create a checkpoint only at the end of Compact call Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Fix review comments Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Fix Bartek's offline reviews Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Introduce TruncateInMemory and TruncateWAL Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Small enhancements and test fixing attempts Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Fix tests Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Add TestOneCheckpointPerCompactCall Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Don't truncate WAL on block compaction Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Simplified the algo. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Better protection around calling truncateWAL, truncate WAL on Head compaction error Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> Co-authored-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	4 years ago
Jorge Vallecillo	7aa5fb01bf	tsdb/chunks/head_chunks_test.go: Fix typo (#7953 ) tsdb/db_test.go: Fix typo Signed-off-by: Jorge Vallecillo <jorgevallecilloc@gmail.com>	4 years ago
Ganesh Vernekar	2255b6f62f	Refactor WAL.Segments method to be part of the wal package (#6477 ) Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	4 years ago
johncming	3e7b463908	add testcase for rangeForTimestamp. (#6454 ) Signed-off-by: johncming <johncming@yahoo.com>	4 years ago
Bartlomiej Plotka	f16cbc20d6	tsdb: Bug fix for further continued deletions after crash deletions; added more tests. (#7777 ) * tsdb: Bug fix for further continued after crash deletions; added more tests. Additionally: Added log line for block removal. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Addressed comment. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>	4 years ago
Bartlomiej Plotka	4ae2ef94e0	tsdb: Delete blocks atomically; Remove tmp blocks on start; Added test. (#7772 ) ## Changes: * Rename dir when deleting * Ignoring blocks with broken meta.json on start (we do that on reload) * Compactor writes <ulid>.tmp-for-creation blocks instead of just .tmp * Delete tmp-for-creation and tmp-for-deletion blocks during DB open. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>	4 years ago
Bartlomiej Plotka	e6d7cc5fa4	tsdb: Added ChunkQueryable implementations to db; unified MergeSeriesSets and vertical to single struct. (#7069 ) * tsdb: Added ChunkQueryable implementations to db; unified compactor, querier and fanout block iterating. Chained to https://github.com/prometheus/prometheus/pull/7059 * NewMerge(Chunk)Querier now takies multiple primaries allowing tsdb DB code to use it. * Added single SeriesEntry / ChunkEntry for all series implementations. * Unified all vertical, and non vertical for compact and querying to single merge series / chunk sets by reusing VerticalSeriesMergeFunc for overlapping algorithm (same logic as before) * Added block (Base/Chunk/)Querier for block querying. We then use populateAndTomb(Base/Chunk/) to iterate over chunks or samples. * Refactored endpoint tests and querier tests to include subtests. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Addressed comments from Brian and Beorn. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Fixed snapshot test and added chunk iterator support for DBReadOnly. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Fixed race when iterating over Ats first. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Fixed tests. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Fixed populate block tests. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Fixed endpoints test. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Fixed test. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Added test & fixed case of head open chunk. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Fixed DBReadOnly tests and bug producing 1 sample chunks. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Added cases for partial block overlap for multiple full chunks. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Added extra tests for chunk meta after compaction. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Fixed small vertical merge bug and added more tests for that. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>	4 years ago
Annanay	9bba8a6eae	Merge branch 'master' into appender-context Signed-off-by: Annanay <annanayagarwal@gmail.com>	4 years ago
Annanay	89129cd39a	Address comments Signed-off-by: Annanay <annanayagarwal@gmail.com>	4 years ago
Javier Palomo Almena	348ff4285f	tsdb: Replace sync/atomic with uber-go/atomic in tsdb (#7659 ) * tsdb/chunks: Replace sync/atomic with uber-go/atomic Signed-off-by: Javier Palomo <javier.palomo.almena@gmail.com> * tsdb/heaad: Replace sync/atomic with uber-go/atomic Signed-off-by: Javier Palomo <javier.palomo.almena@gmail.com> * vendor: Make go.uber.org/atomic a direct dependency There is no modifications to go.sum and vendor/ because it was already vendored. Signed-off-by: Javier Palomo <javier.palomo.almena@gmail.com> * tsdb: Remove comments referring to the sync/atomic alignment bug Related: https://golang.org/pkg/sync/atomic/#pkg-note-BUG Signed-off-by: Javier Palomo <javier.palomo.almena@gmail.com>	4 years ago
Annanay	f40e4579b7	gofmt Signed-off-by: Annanay <annanayagarwal@gmail.com>	4 years ago
Annanay	7f98a744e5	Add context to Appender interface Signed-off-by: Annanay <annanayagarwal@gmail.com>	4 years ago
Julien Pivotto	ffc925dd21	TSDB: Error when we commit/rollback twice (#7593 ) * TSDB: Error when we commit/rollback twice Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>	4 years ago
Julien Pivotto	cfe30a7b62	TSDB: Use t.Cleanup to delete temporary files (#7620 ) Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>	4 years ago
Julien Pivotto	62805b2fe9	tsdb: test for leaks (#7566 ) Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>	4 years ago
Krasimir Georgiev	ccab2b30c9	Test no panic after a WAL corruption (#7625 ) * no panic the head memseries has chunks in it Signed-off-by: Krasi Georgiev <8903888+krasi-georgiev@users.noreply.github.com> * fix a panic when querying after a wal corruption. Signed-off-by: Krasi Georgiev <8903888+krasi-georgiev@users.noreply.github.com> * review nits Signed-off-by: Krasi Georgiev <8903888+krasi-georgiev@users.noreply.github.com> * Add test for reading the data after a wal corruption. Signed-off-by: Krasi Georgiev <8903888+krasi-georgiev@users.noreply.github.com> Update tsdb/db_test.go Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> Update tsdb/db_test.go Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> Signed-off-by: Krasi Georgiev <8903888+krasi-georgiev@users.noreply.github.com> * spellings Signed-off-by: Krasi Georgiev <8903888+krasi-georgiev@users.noreply.github.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>	4 years ago
Zhou Hao	ddedf454d0	add os.RemoveAll err verification (#7540 ) * add os.RemoveAll err verification for watcher_test Signed-off-by: Zhou Hao <zhouhao@cn.fujitsu.com> * add os.RemoveAll err verification for db_test Signed-off-by: Zhou Hao <zhouhao@cn.fujitsu.com> * add os.RemoveAll err verification for write_test Signed-off-by: Zhou Hao <zhouhao@cn.fujitsu.com> * add os.RemoveAll err verification for queue_manager_test Signed-off-by: Zhou Hao <zhouhao@cn.fujitsu.com> * tsdb/wal/watcher_test: add close operation before delete Signed-off-by: Zhou Hao <zhouhao@cn.fujitsu.com>	4 years ago
Ganesh Vernekar	ea013343ca	Log when starting to create a checkpoint (#7581 ) Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	4 years ago
Julien Pivotto	f893786153	Fix TSDB test failure (#7394 ) PR #7338 was not rebased on top of master and interface had changed. Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>	5 years ago
Krasimir Georgiev	ab6203b7c7	add head compaction test (#7338 )	5 years ago
Kemal Akkoyun	66dfb951c4	: Consistent Error/Warning handling for SeriesSet iterator: Allowing Async Select (#7251 ) Add errors and Warnings to SeriesSet Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> * Change Querier interface and refactor accordingly Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> * Refactor promql/engine to propagate warnings at eval stage Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> * Address review issues Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> * Make sure all the series from all Selects are pre-advanced Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> * Address review issues Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> * Separate merge series sets Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> * Clean Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> * Refactor merge querier failure handling Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> * Refactored and simplified fanout with improvements from incoming chunk iterator PRs. * Secondary logic is hidden, instead of weird failed series set logic we had. * Fanout is well commented * Fanout closing record all errors * MergeQuerier improved API (clearer) * deferredGenericMergeSeriesSet is not needed as we return no samples anyway for failed series sets (next = false). Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Fix formatting Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> * Fix CI issues Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> * Added final tests for error handling. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Addressed Brian's comments. * Moved hints in populate to be allocated only when needed. * Used sync.Once in secondary Querier to achieve all-or-nothing partial response logic. * Select after first Next is done will panic. NOTE: in lazySeriesSet in theory we could just panic, I think however we can totally just return error, it will panic in expand anyway. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Utilize errWithWarnings Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> * Fix recently introduced expansion issue Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> * Add tests for secondary querier error handling Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> * Implement lazy merge Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> * Add name to test cases Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> * Reorganize Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> * Address review comments Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> * Address review comments Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> * Remove redundant warnings Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> * Fix rebase mistake Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> Co-authored-by: Bartlomiej Plotka <bwplotka@gmail.com>	5 years ago
Ganesh Vernekar	d4b9fe801f	M-map full chunks of Head from disk (#6679 ) When appending to the head and a chunk is full it is flushed to the disk and m-mapped (memory mapped) to free up memory Prom startup now happens in these stages - Iterate the m-maped chunks from disk and keep a map of series reference to its slice of mmapped chunks. - Iterate the WAL as usual. Whenever we create a new series, look for it's mmapped chunks in the map created before and add it to that series. If a head chunk is corrupted the currpted one and all chunks after that are deleted and the data after the corruption is recovered from the existing WAL which means that a corruption in m-mapped files results in NO data loss. [Mmaped chunks format](https://github.com/prometheus/prometheus/blob/master/tsdb/docs/format/head_chunks.md) - main difference is that the chunk for mmaping now also includes series reference because there is no index for mapping series to chunks. [The block chunks](https://github.com/prometheus/prometheus/blob/master/tsdb/docs/format/chunks.md) are accessed from the index which includes the offsets for the chunks in the chunks file - example - chunks of series ID have offsets 200, 500 etc in the chunk files. In case of mmaped chunks, the offsets are stored in memory and accessed from that. During WAL replay, these offsets are restored by iterating all m-mapped chunks as stated above by matching the series id present in the chunk header and offset of that chunk in that file. Prombench results _WAL Replay_ 1h Wal reply time 30% less wal reply time - 4m31 vs 3m36 2h Wal reply time 20% less wal reply time - 8m16 vs 7m _Memory During WAL Replay_ High Churn: 10-15% less RAM - 32gb vs 28gb 20% less RAM after compaction 34gb vs 27gb No Churn: 20-30% less RAM - 23gb vs 18gb 40% less RAM after compaction 32.5gb vs 20gb Screenshots are in [this comment](https://github.com/prometheus/prometheus/pull/6679#issuecomment-621678932) Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	5 years ago
ZouYu	2b7437d60e	Fix some warnings: 'redundant type from array, slice, or map composite literal' (#7109 ) Signed-off-by: ZouYu <zouy.fnst@cn.fujitsu.com>	5 years ago
Julien Pivotto	73228b1b68	Those links should not be reverted Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>	5 years ago

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