prometheus

Commit Graph

Author	SHA1	Message	Date
zenador	69edd8709b	Add warnings (and annotations) to PromQL query results (#12152 ) Return annotations (warnings and infos) from PromQL queries This generalizes the warnings we have already used before (but only for problems with remote read) as "annotations". Annotations can be warnings or infos (the latter could be false positives). We do not treat them different in the API for now and return them all as "warnings". It would be easy to distinguish them and return infos separately, should that appear useful in the future. The new annotations are then used to create a lot of warnings or infos during PromQL evaluations. Partially these are things we have wanted for a long time (e.g. inform the user that they have applied `rate` to a metric that doesn't look like a counter), but the new native histograms have created even more needs for those annotations (e.g. if a query tries to aggregate float numbers with histograms). The annotations added here are not yet complete. A prominent example would be a warning about a range too short for a rate calculation. But such a warnings is more tricky to create with good fidelity and we will tackle it later. Another TODO is to take annotations into account when evaluating recording rules. --------- Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>	1 year ago
Arve Knudsen	156222cc50	Add context argument to LabelQuerier.LabelValues (#12665 ) Add context argument to LabelQuerier.LabelValues and LabelQuerier.SortedLabelValues. Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>	1 year ago
Arve Knudsen	a964349e97	Add context argument to LabelQuerier.LabelNames (#12666 ) Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>	1 year ago
Arve Knudsen	6daee89e5f	Add context argument to Querier.Select (#12660 ) Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>	1 year 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
Oleg Zaytsev	b1ed4a0a66	LabelNames API with matchers (#9083 ) * Push the matchers for LabelNames all the way into the index. NB This doesn't actually implement it in the index, just plumbs it through for now... Signed-off-by: Tom Wilkie <tom@grafana.com> * Hack it up. Does not work. Signed-off-by: Tom Wilkie <tom@grafana.com> * Revert changes I don't understand Can't see why do we need to hold a mutex on symbols, and the purpose of the LabelNamesFor method. Maybe I'll need to re-add this later. Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Implement LabelNamesFor This method provides the label names that appear in the postings provided. We do that deeper than the label values because we know beforehand that most of the label names we'll be the same across different postings, and we don't want to go down an up looking up the same symbols for all different series. Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Mutex on symbols should be unlocked However, I still don't understand why do we need a mutex here. Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Fix head.LabelNamesFor Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Implement mockIndex LabelNames with matchers Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Nitpick on slice initialisation Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Add tests for LabelNamesWithMatchers Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Fix the mutex mess on head.LabelValues/LabelNames I still don't see why we need to grab that unrelated mutex, but at least now we're grabbing it consistently Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Check error after iterating postings Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Use the error from posting when there was en error in postings Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Update storage/interface.go comment Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> * Update tsdb/index/index.go comment Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> * Update tsdb/index/index.go wrapped error msg Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> * Update tsdb/index/index.go wrapped error msg Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> * Update tsdb/index/index.go warpped error msg Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> * Remove unneeded comment Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Add testcases for LabelNames w/matchers in api.go Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Use t.Cleanup() instead of defer in tests Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> Co-authored-by: Tom Wilkie <tom@grafana.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>	3 years ago
Mauro Stettler	7715fe3219	Add matchers to LabelValues() call (#8400 ) * Accept matchers in querier LabelValues() Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * create matcher to only select metrics which have searched label Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * test case for merge querier with matchers Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * test LabelValues with matchers on head Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * add test for LabelValues on block Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * formatting fix Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * Add comments Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * add missing lock release Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * remove unused parameter Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * Benchmarks for LabelValues() methods on block/head Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * Better comment Co-authored-by: Julien Pivotto <roidelapluie@gmail.com> Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * update comment Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * minor refactor make code cleaner Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * better comments Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * fix expected errors in test Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * Deleting parameter which can only be empty Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * fix comments Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * remove unnecessary lock Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * only lookup label value if label name was looked up Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * Return error when there is one Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * Call .Get() on decoder before checking errors Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * only lock head.symMtx when necessary Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * remove unnecessary delete() Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * re-use code instead of duplicating it Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * Consistently return error from LabelValueFor() Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * move helper func from util.go to querier.go Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * Fix test expectation Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> * ensure result de-duplication and sorting works Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * return named error from LabelValueFor() Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> Co-authored-by: Julien Pivotto <roidelapluie@gmail.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.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
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

9 Commits (879d80922a227c37df502e7315fad8ceb10a986d)