prometheus

Commit Graph

Author	SHA1	Message	Date
Julien Pivotto	4e5b1722b3	Move away from testutil, refactor imports (#8087 ) Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>	4 years ago
Ganesh Vernekar	ce4b3ac282	Simplify TestHeadReadWriter_Truncate (#7437 ) * Simplify TestHeadReadWriter_Truncate Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Fix review comments Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	4 years ago
Ganesh Vernekar	2624d827fa	Read repair empty last file in chunks_head (#8061 ) * Read repair empty file in chunks_head Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Refactor and introduce repairLastChunkFile Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Attempt windows test fix Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Fix review comments Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Fix review comments Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	4 years ago
garanews	c38816828f	fix few typo (#8023 ) Signed-off-by: garanews <puntogtg@tiscali.it>	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
johncming	252265fa81	tsdb/chunks: remove un-used code. (#6944 ) Signed-off-by: johncming <johncming@yahoo.com>	4 years ago
Ganesh Vernekar	c806262206	Fix 'chunks.HeadReadWriter: maxt of the files are not set' error (#7856 ) * Fix chunks.HeadReadWriter: maxt of the files are not set Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	4 years ago
Yukun Sun	cfd4e05c9e	fix: return a corruption error when iterator function find a chunk that is out of sequence (#7855 ) Signed-off-by: sunyukun <sunyukun@didiglobal.com> Co-authored-by: sunyukun <sunyukun@didiglobal.com>	4 years ago
Max Neverov	bb5c6b38e2	Fix Possible Race Condition in TSDB (#7815 ) * Replace tsdb chunk mapper size with atomic; protect mmappedChunkFiles with read path mutex on DeleteCorrupted Signed-off-by: Max Neverov <neverov.max@gmail.com> * PR fixes Signed-off-by: Max Neverov <neverov.max@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
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
johncming	9801f52b0a	tsdb/chunks: fix bug of data race(#7643 ). (#7646 ) Signed-off-by: johncming <johncming@yahoo.com>	4 years ago
Ganesh Vernekar	b8a7e80f9b	Fix review comments Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	4 years ago
Ganesh Vernekar	7a763ff61e	Avoid empty mmap files by using .tmp files to write headers Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	4 years ago
Ganesh Vernekar	b7c46a8c79	Merge remote-tracking branch 'upstream/master' into merge-release-2.19 Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	4 years ago
Ganesh Vernekar	48fae12b89	Fix unsequential m-map files (#7414 ) * Fix unsequential m-map files Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Fix review comments Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	5 years ago
Simon Pasquier	2f12049371	tsdb: improve logs when encountering corruption (#7308 ) * tsdb: improve logs when encountering corruption Signed-off-by: Simon Pasquier <spasquie@redhat.com> * Wrap corrupted block errors Signed-off-by: Simon Pasquier <spasquie@redhat.com> * Add file path to head chunks Signed-off-by: Simon Pasquier <spasquie@redhat.com>	5 years ago
Ganesh Vernekar	1627d234da	Moves the atomically accessed member to the top of the struct (#7365 ) * Moves the 64bit atomically accessed field to the top of the struct. Signed-off-by: Bryan Varner <1652015+bvarner@users.noreply.github.com> * Moves the 64bit atomically accessed field to the top of the struct. Signed-off-by: Bryan Varner <1652015+bvarner@users.noreply.github.com> * Fixing up go fmt formatting issues. Signed-off-by: Bryan Varner <1652015+bvarner@users.noreply.github.com> Co-authored-by: Bryan Varner <1652015+bvarner@users.noreply.github.com>	5 years ago
Ganesh Vernekar	a1355eb7c7	Remove time based m-map file creation (#7314 ) * Remove time based m-map file creation Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Fix review comments Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	5 years ago
Ganesh Vernekar	83619aa9ac	Preallocate m-map file only for Windows (#7306 ) Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	5 years ago
Krasimir Georgiev	09df8d94e0	More explicit chunks and head error handling. (#7277 )	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
Brad Walker	3348930df5	Replace fileutil.ReadDir with ioutil.ReadDir (#7029 ) (#7033 ) * tsdb: Replace fileutil.ReadDir with ioutil.ReadDir (#7029) Signed-off-by: Brad Walker <brad@bradmwalker.com> * tsdb: Remove fileutil.ReadDir (#7029) Signed-off-by: Brad Walker <brad@bradmwalker.com>	5 years ago
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
Ganesh Vernekar	e50fdbc70c	Live m-mapping of chunks on disk (#6830 ) * Live m-mapping of chunks on disk Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Fix review comments Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Fix review comments Part 2 Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Fix review comments Part 3 Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Fix review comments Part 4 Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in> * Attempt to fix windows bug Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	5 years ago
Ganesh Vernekar	0a27df92f0	Refactor tsdb/chunks/chunks.go for future PRs (#6754 ) Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	5 years ago
Bartlomiej Plotka	3b8ef6386c	Fixed race in Chunks method. (#6515 ) Added regression test. Fixes #6512 Before (not deterministic result due to concurrency): ``` === RUN TestChunkReader_ConcurrentRead --- FAIL: TestChunkReader_ConcurrentRead (0.01s) db_test.go:2702: unexpected error: checksum mismatch expected:597ad276, actual:597ad276 db_test.go:2702: unexpected error: checksum mismatch expected:dd0cdbc2, actual:dd0cdbc2 FAIL ``` After succuess on multiple runs. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>	5 years ago
Krasimir Georgiev	549164f252	return err instead of panic for corrupted chunk (#6040 ) * Fix tsdb panic when querying corrupted chunks. check that the chunk segment has enough data to read all chunk pieces. * refactor, simplify and add tests. * simpfiy WriteChunks implementation Signed-off-by: Krasi Georgiev <8903888+krasi-georgiev@users.noreply.github.com>	5 years ago
Bartek Plotka	f0863a604e	Removed extra tsdb/testutil after merge. Signed-off-by: Bartek Plotka <bwplotka@gmail.com>	5 years ago
Ganesh Vernekar	5ecef3542d	Cleanup after merging tsdb into prometheus Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	5 years ago
Ganesh Vernekar	7cf09b0395	Moving tsdb into its own subdirectory Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	5 years ago

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81 Commits (ba7012ec6a7c104beb8866b79f6d07972c9e27c4)