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prometheus/tsdb
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Filip Petkovski be7a4c9b83
Ignore stale histograms for counter reset detection 
The histogram stats decoder keeps track of the last seen histogram sample
in order to properly detect counter resets. We are seeing an issue where
a histogram with UnknownResetHint gets treated as a counter reset when it follows
a stale histogram sample.

I believe that this is incorrect since stale samples should be completely ignored
in PromQL. As a result, they should not be stored in the histogram stats iterator
and the counter reset detection needs to be done against the last non-stale sample.

Signed-off-by: Filip Petkovski <filip.petkovsky@gmail.com>
2024-07-26 10:08:31 +02:00
..
agent [PRW 2.0] Merging remote-write-2.0 feature branch to main (PRW 2.0 support + metadata in WAL) (#14395) 2024-07-04 14:29:20 -07:00
chunkenc Fix a couple of comments 2024-07-05 15:25:42 +02:00
chunks TSDB: Simplify OOO Select by copying the head chunk (#14396) 2024-07-03 15:08:07 +01:00
docs Fix language in docs and comments (#14041) 2024-05-08 17:57:09 +02:00
encoding tsdb/encoding: use Go standard errors package 2023-11-11 19:01:11 +01:00
errors Enable default revive rules (#13068) 2023-11-29 17:23:34 +00:00
fileutil tests: remove err from message when testify prints it already 2024-02-01 14:18:01 +00:00
goversion remove obsolete build tag 2024-01-17 22:26:32 +08:00
index Replace ListPostings.Seek's binary search call by the generic slices.BinarySearch (#14393) 2024-07-02 14:51:05 +01:00
record Fix a couple of comments 2024-07-05 15:25:42 +02:00
testdata
tombstones Update tombstones.go 2023-11-11 19:22:06 +01:00
tsdbutil Ignore stale histograms for counter reset detection 2024-07-26 10:08:31 +02:00
wlog Merge branch 'release-2.53' into merge-2.53.1 2024-07-10 11:17:53 +01:00
.gitignore
block_test.go tsdb: Extend compactor interface to allow compactions to create multiple output blocks (#14143) 2024-06-12 17:31:25 -04:00
block.go tsdb: Extend compactor interface to allow compactions to create multiple output blocks (#14143) 2024-06-12 17:31:25 -04:00
blockwriter_test.go Add a chunk size limit in bytes (#12054) 2023-08-24 15:21:17 +02:00
blockwriter.go tsdb: Extend compactor interface to allow compactions to create multiple output blocks (#14143) 2024-06-12 17:31:25 -04:00
CHANGELOG.md
compact_test.go TSDB: Change block populator to accept postings index function (#14213) 2024-06-25 09:21:48 +01:00
compact.go TSDB: Change block populator to accept postings index function (#14213) 2024-06-25 09:21:48 +01:00
db_test.go Merge pull request #14109 from harry671003/pass_limit_to_querier 2024-07-12 10:27:52 +01:00
db.go TSDB: rebuild labels symbol-table on each compaction 2024-07-05 10:19:07 +01:00
example_test.go Add context argument to Querier.Select (#12660) 2023-09-12 12:37:38 +02:00
exemplar_test.go [Test] TSDB: BenchmarkResizeExemplar multiple per series 2024-05-30 09:17:11 +01:00
exemplar.go [ENHANCEMENT] TSDB: Save map lookup on validation 2024-05-30 09:17:11 +01:00
head_append.go Merge pull request #14438 from prometheus/cedwards/ooo-chunk-encoding 2024-07-16 11:12:23 -07:00
head_bench_test.go tsdb: use Go standard errors 2023-12-11 12:18:54 +00:00
head_dedupelabels.go tsdb: reset symbol table for exemplars periodically 2024-07-05 10:19:07 +01:00
head_other.go TSDB: rebuild labels symbol-table on each compaction 2024-07-05 10:19:07 +01:00
head_read_test.go TSDB: Simplify OOO Select by copying the head chunk (#14396) 2024-07-03 15:08:07 +01:00
head_read.go TSDB: Lock around access to labels in head under -tags dedupelabels (#14322) 2024-07-05 10:11:32 +01:00
head_test.go Refactor TestWBLReplay to use scenarios 2024-07-16 10:53:28 -07:00
head_wal.go TSDB: Lock around access to labels in head under -tags dedupelabels (#14322) 2024-07-05 10:11:32 +01:00
head.go TSDB: shrink memSeries by moving bools together 2024-07-15 16:09:48 +01:00
isolation_test.go
isolation.go tsdb: create isolation transaction slice on demand 2023-10-21 13:45:47 +00:00
mocks_test.go tsdb: use Go standard errors 2023-12-11 12:18:54 +00:00
ooo_head_read_test.go Fix test 2024-07-03 09:28:38 -07:00
ooo_head_read.go Merge pull request #14438 from prometheus/cedwards/ooo-chunk-encoding 2024-07-16 11:12:23 -07:00
ooo_head_test.go ci(lint): enable godot; append dot at the end of comments 2023-10-31 19:53:38 +02:00
ooo_head.go Fix linting 2024-07-16 10:53:23 -07:00
ooo_isolation_test.go Fix issue where queries can fail or omit OOO samples if OOO head compaction occurs between creating a querier and reading chunks (#13115) 2023-11-24 12:38:38 +01:00
ooo_isolation.go Fix issue where queries can fail or omit OOO samples if OOO head compaction occurs between creating a querier and reading chunks (#13115) 2023-11-24 12:38:38 +01:00
querier_bench_test.go Optimize label values with matchers by taking shortcuts (#13426) 2024-01-23 11:40:21 +01:00
querier_test.go Pass limit param as hint to storage.Querier 2024-06-20 09:47:38 -07:00
querier.go Pass limit param as hint to storage.Querier 2024-06-20 09:47:38 -07:00
README.md
repair_test.go tsdb tests: use go-cmp instead of DeepEquals 2024-02-08 19:32:33 +00:00
repair.go tsdb: use Go standard errors 2023-12-11 12:18:54 +00:00
testutil.go Testutil refactoring 2024-07-03 09:28:38 -07:00
tsdbblockutil.go Optimize histogram iterators (#13340) 2024-01-23 17:02:14 +01:00

README.md

TSDB

GoPkg

This directory contains the Prometheus TSDB (Time Series DataBase) library, which handles storage and querying of all Prometheus v2 data.

Documentation

External resources

A series of blog posts explaining different components of TSDB: