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prometheus/tsdb
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Joshua Hesketh f2064c7987
NH: Do not re-use spans between histograms (#14771) 
promql, tsdb (histograms): Do not re-use spans between histograms

When multiple points exist with the same native histogram schemas they
share their spans.
This causes a problem when a native histogram (NH) schema is modified (for example, during
a Sum) then the other NH's with the same spans are also modified. As such,
we should create a new Span for each NH. This will ensure NH's interfaces
are safe to use without considering the effect on other histograms.

At the moment this doesn't present itself as a problem because in all
aggregations and functions operating on native histograms they are copied
by the promql query engine first.

Signed-off-by: Joshua Hesketh <josh@nitrotech.org>

---------

Signed-off-by: Joshua Hesketh <josh@nitrotech.org>
2024-09-04 12:07:16 +02:00
..
agent chore: fix some function names 2024-08-21 11:09:37 +08:00
chunkenc NH: Do not re-use spans between histograms (#14771) 2024-09-04 12:07:16 +02:00
chunks Merge pull request #14700 from shandongzhejiang/main 2024-09-02 18:59:28 +02:00
docs Fix language in docs and comments (#14041) 2024-05-08 17:57:09 +02:00
encoding lint: Revamp our linting rules, mostly around doc comments 2024-08-22 17:36:11 +02:00
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 lint: Revamp our linting rules, mostly around doc comments 2024-08-22 17:36:11 +02:00
record Fix a couple of comments 2024-07-05 15:25:42 +02:00
testdata
tombstones
tsdbutil Ignore stale histograms for counter reset detection 2024-07-26 10:08:31 +02:00
wlog fix bug with metadata for rw2 (#14766) 2024-08-30 08:14:20 +01:00
.gitignore
block.go TSDB: Review feedback 2024-08-14 13:41:44 +01:00
block_test.go tsdb: Extend compactor interface to allow compactions to create multiple output blocks (#14143) 2024-06-12 17:31:25 -04:00
blockwriter.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
CHANGELOG.md
compact.go TSDB: Change block populator to accept postings index function (#14213) 2024-06-25 09:21:48 +01:00
compact_test.go chore: fix some comments 2024-08-28 11:26:57 +08:00
db.go lint: Revamp our linting rules, mostly around doc comments 2024-08-22 17:36:11 +02:00
db_test.go New cases in Test_ChunkQuerier_OOOQuery and Test_Querier_OOOQuery 2024-08-23 15:50:47 +02:00
example_test.go
exemplar.go [ENHANCEMENT] TSDB: Save map lookup on validation 2024-05-30 09:17:11 +01:00
exemplar_test.go [Test] TSDB: BenchmarkResizeExemplar multiple per series 2024-05-30 09:17:11 +01:00
head.go Revert " Store mmMaxTime in same field as seriesShard" 2024-08-26 08:56:16 +02:00
head_append.go Upgrade golangci-lint to v1.60.1 2024-08-18 12:13:25 +02:00
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 lint: Revamp our linting rules, mostly around doc comments 2024-08-22 17:36:11 +02:00
head_read.go TSDB: streamline reading of overlapping head chunks 2024-08-29 10:57:29 +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_test.go chore: Simplify TestHeadAppender_AppendCTZeroSample (#14812) 2024-09-02 21:30:37 +01:00
head_wal.go Revert " Store mmMaxTime in same field as seriesShard" 2024-08-26 08:56:16 +02:00
isolation.go
isolation_test.go
mocks_test.go tsdb: use Go standard errors 2023-12-11 12:18:54 +00:00
ooo_head.go TSDB: Remove code for querying OOO-head only 2024-08-14 13:41:13 +01:00
ooo_head_read.go TSDB: streamline reading of overlapping head chunks 2024-08-29 10:57:29 +01:00
ooo_head_read_test.go [TESTS] TSDB: fix up OOO tests for new Series behaviour 2024-08-29 10:59:09 +01:00
ooo_head_test.go Fix ToEncodedChunks minT for recoded chunks 2024-08-08 15:22:46 +02:00
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
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
querier.go tsdb: Fix ValNone typo in comment 2024-08-23 08:20:20 +02:00
querier_bench_test.go TSDB: Review feedback 2024-08-14 13:41:44 +01:00
querier_test.go TSDB tests: Fix up BenchmarkQueries 2024-08-14 13:41:04 +01:00
README.md
repair.go tsdb: use Go standard errors 2023-12-11 12:18:54 +00:00
repair_test.go tsdb tests: use go-cmp instead of DeepEquals 2024-02-08 19:32:33 +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: