prometheus

Commit Graph

Author	SHA1	Message	Date
Bartlomiej Plotka	d5c33877f9	storage: Added Chunks{Queryable/Querier/SeriesSet/Series/Iteratable. Added generic Merge{SeriesSet/Querier} implementation. (#7005 ) * storage: Added Chunks{Queryable/Querier/SeriesSet/Series/Iteratable. Added generic Merge{SeriesSet/Querier} implementation. ## Rationales: In many places (e.g. chunk Remote read, Thanos Receive fetching chunk from TSDB), we operate on encoded chunks not samples. This means that we unnecessary decode/encode, wasting CPU, time and memory. This PR adds chunk iterator interfaces and makes the merge code to be reused between both seriesSets I will make the use of it in following PR inside tsdb itself. For now fanout implements it and mergers. All merges now also allows passing series mergers. This opens doors for custom deduplications other than TSDB vertical ones (e.g. offline one we have in Thanos). ## Changes * Added Chunk versions of all iterating methods. It all starts in Querier/ChunkQuerier. The plan is that Storage will implement both chunked and samples. * Added Seek to chunks.Iterator interface for iterating over chunks. * NewMergeChunkQuerier was added; Both this and NewMergeQuerier are now using generigMergeQuerier to share the code. Generic code was added. * Improved tests. * Added some TODO for further simplifications in next PRs. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Addressed Brian's comments. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Moved s/Labeled/SeriesLabels as per Krasi suggestion. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Addressed Krasi's comments. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Second iteration of Krasi comments. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Another round of comments. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>	5 years ago
Bartlomiej Plotka	34426766d8	Unify Iterator interfaces. All point to storage now. This is part of https://github.com/prometheus/prometheus/pull/5882 that can be done to simplify things. All todos I added will be fixed in follow up PRs. * querier.Querier, querier.Appender, querier.SeriesSet, and querier.Series interfaces merged with storage interface.go. All imports that. * querier.SeriesIterator replaced by chunkenc.Iterator * Added chunkenc.Iterator.Seek method and tests for xor implementation (?) * Since we properly handle SelectParams for Select methods I adjusted min max based on that. This should help in terms of performance for queries with functions like offset. * added Seek to deletedIterator and test. * storage/tsdb was removed as it was only a unnecessary glue with incompatible structs. No logic was changed, only different source of abstractions, so no need for benchmarks. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>	5 years ago
Joe Elliott	95dc59ec7e	Replaced t.Fatalf() with testutil.Assert() in buffer_test.go (#6084 ) * Added Fatal method and used it in buffer_test Signed-off-by: Joe Elliott <number101010@gmail.com> * Added period to meet contributing guidelines Signed-off-by: Joe Elliott <number101010@gmail.com> * Removed fatal testutil method. Refactored test cases to use testutil.Assert Signed-off-by: Joe Elliott <number101010@gmail.com> * Added if found condition for clarity Signed-off-by: Joe Elliott <number101010@gmail.com>	5 years ago
Chris Marchbanks	529ccff07b	Remove all usages of stretchr/testify Signed-off-by: Chris Marchbanks <csmarchbanks@gmail.com>	5 years ago
Alin Sinpalean	d6adfe2ae2	Use a fake SeriesIterator (that generates samples on the fly instead of using a slice) for BufferedSeriesIterator, to reduce the variance of benchmark results due to memory pressure. (#4847 ) Signed-off-by: Alin Sinpalean <alin.sinpalean@gmail.com>	6 years ago
Alin Sinpalean	e3b775b78b	Simplify BufferedSeriesIterator usage (#4294 ) * Allow for BufferedSeriesIterator instances to be created without an underlying iterator, to simplify their usage. Signed-off-by: Alin Sinpalean <alin.sinpalean@gmail.com>	6 years ago
Brian Brazil	a8c22c85cc	Correctly handle pruning wraparound after ring expansion (#3942 ) Fixes #3939	7 years ago
Tom Wilkie	da29c09dca	Some benchmarks for the mergeSeries set.	7 years ago
Goutham Veeramachaneni	baf5b0f0fc	Fix error where we look into the future. (#2829 ) * Fix error where we look into the future. So currently we are adding values that are in the future for an older timestamp. For example, if we have [(1, 1), (150, 2)] we will end up showing [(1, 1), (2,2)]. Further it is not advisable to call .At() after Next() returns false. Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in> * Retuen early if done Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in> * Handle Seek() where we reach the end of iterator Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in> * Simplify code Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>	8 years ago
Fabian Reinartz	0f3110487d	Merge remote-tracking branch 'origin/dev-2.0' into dev-2.0	8 years ago
Fabian Reinartz	37deb21c45	vendor: remove unused dependency and last ref to fabxc/tsdb	8 years ago
Brian Brazil	5c9a6ce747	Add license to files. This should fix CI for dev-2.0.	8 years ago
Fabian Reinartz	0ecd205794	promql: Use buffer pool for matrix allocations	8 years ago
Fabian Reinartz	bc20d93f0a	storage: rename iterator value getters to At()	8 years ago
Fabian Reinartz	7322c46b8e	storage: add mock iterator for test	8 years ago
Fabian Reinartz	0492ddbd4d	*: fully decouple tsdb, add new storage interfaces	8 years ago

16 Commits (7727b9012e76e114a780d9d0a64beeb07762a62e)