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prometheus/tsdb
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Fiona Liao 5bee0cfce2
Change ChunkReader.Chunk() to ChunkOrIterable() 
The ChunkReader interface's Chunk() has been changed to ChunkOrIterable(). 

This is a precursor to OOO native histogram support - with OOO native histograms, the chunks.Meta passed to Chunk() can result in multiple chunks being returned rather than just a single chunk (e.g. if oooMergedChunk has a counter reset in the middle). 

To support this, ChunkOrIterable() requires either a single chunk or an iterable to be returned. If an iterable is returned, the caller has the responsibility of converting the samples from the iterable into possibly multiple chunks. The OOOHeadChunkReader now returns an iterable rather than a chunk to prepare for the native histograms case. Also as a beneficial side effect, oooMergedChunk and boundedChunk has been simplified as they only need to implement the Iterable interface now, not the full Chunk interface.

---------

Signed-off-by: Fiona Liao <fiona.y.liao@gmail.com>
Co-authored-by: George Krajcsovits <krajorama@users.noreply.github.com>
2023-11-28 11:14:29 +01:00
..
agent tsdb/agent: use Go standard errors package 2023-11-08 09:22:31 +01:00
chunkenc Change ChunkReader.Chunk() to ChunkOrIterable() 2023-11-28 11:14:29 +01:00
chunks Change ChunkReader.Chunk() to ChunkOrIterable() 2023-11-28 11:14:29 +01:00
docs Merge branch 'main' into sparsehistogram 2022-08-10 17:54:37 +02:00
encoding tsdb/encoding: use Go standard errors package 2023-11-11 19:01:11 +01:00
errors tsdb/errors: fix errorlint linter 2023-11-14 19:16:12 +00:00
fileutil tsdb/fileutil: use Go standard errors 2023-11-14 19:05:21 +00:00
goversion lint: Adjust to the lint warnings raised by current versions of golint-ci 2023-04-19 17:10:10 +02:00
index Merge pull request #13124 from mmorel-35/patch-5 2023-11-14 00:53:49 +01:00
record Labels: reduce allocations when creating from TSDB WAL (#13044) 2023-11-14 11:36:35 +00:00
testdata tsdb: Delete blocks atomically; Remove tmp blocks on start; Added test. (#7772) 2020-08-11 06:56:08 +01:00
tombstones Update tombstones.go 2023-11-11 19:22:06 +01:00
tsdbutil Change ChunkReader.Chunk() to ChunkOrIterable() 2023-11-28 11:14:29 +01:00
wlog remplace errors.Errorf by fmt.Errorf 2023-11-14 13:04:31 +00:00
.gitignore Moving tsdb into its own subdirectory 2019-08-13 13:58:49 +05:30
block.go Change ChunkReader.Chunk() to ChunkOrIterable() 2023-11-28 11:14:29 +01:00
block_test.go Change ChunkReader.Chunk() to ChunkOrIterable() 2023-11-28 11:14:29 +01:00
blockwriter.go Merge 'main' into sparsehistogram 2022-10-05 22:14:49 +02:00
blockwriter_test.go Add a chunk size limit in bytes (#12054) 2023-08-24 15:21:17 +02:00
CHANGELOG.md Rename default branch to main 2021-02-22 20:28:02 +01:00
compact.go remplace errors.Errorf by fmt.Errorf 2023-11-14 13:04:31 +00:00
compact_test.go Change ChunkReader.Chunk() to ChunkOrIterable() 2023-11-28 11:14:29 +01:00
db.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
db_test.go Change ChunkReader.Chunk() to ChunkOrIterable() 2023-11-28 11:14:29 +01:00
example_test.go Add context argument to Querier.Select (#12660) 2023-09-12 12:37:38 +02:00
exemplar.go Fix error on ingesting out-of-order exemplars (#13021) 2023-11-16 15:07:37 +01:00
exemplar_test.go tsdb: in tests use labels.FromStrings 2022-09-09 13:34:49 +02:00
head.go tsdb: seriesHashmap.set by making receiver a pointer (#13193) 2023-11-27 15:40:30 +00:00
head_append.go Fix panic during tsdb Commit (#13092) 2023-11-12 14:51:37 +00:00
head_bench_test.go Pass ref to SeriesLifecycleCallback.PostDeletion (#12626) 2023-08-03 10:56:27 +02:00
head_read.go Change ChunkReader.Chunk() to ChunkOrIterable() 2023-11-28 11:14:29 +01:00
head_read_test.go Change ChunkReader.Chunk() to ChunkOrIterable() 2023-11-28 11:14:29 +01:00
head_test.go Change ChunkReader.Chunk() to ChunkOrIterable() 2023-11-28 11:14:29 +01:00
head_wal.go remplace errors.Errorf by fmt.Errorf 2023-11-14 13:04:31 +00:00
isolation.go ci(lint): enable predeclared linter 2023-05-21 07:33:54 +00:00
isolation_test.go tsdb: turn off transaction isolation for head compaction (#11317) 2022-09-27 19:31:23 +05:30
mocks_test.go Move packages out of deprecated pkg directory 2021-11-09 08:03:10 +01:00
ooo_head.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_head_read.go Change ChunkReader.Chunk() to ChunkOrIterable() 2023-11-28 11:14:29 +01:00
ooo_head_read_test.go Change ChunkReader.Chunk() to ChunkOrIterable() 2023-11-28 11:14:29 +01:00
ooo_head_test.go ci(lint): enable godot; append dot at the end of comments 2023-10-31 19:53:38 +02:00
ooo_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 Change ChunkReader.Chunk() to ChunkOrIterable() 2023-11-28 11:14:29 +01:00
querier_bench_test.go ci(lint): enable nolintlint and remove redundant comments (#12926) 2023-10-31 12:35:13 +01:00
querier_test.go Change ChunkReader.Chunk() to ChunkOrIterable() 2023-11-28 11:14:29 +01:00
README.md Fixed broken link in tsdb README.md 2022-10-07 16:20:20 +00:00
repair.go remplace errors.Errorf by fmt.Errorf 2023-11-14 13:04:31 +00:00
repair_test.go Add context argument to IndexReader.Postings (#12667) 2023-09-13 17:45:06 +02:00
tsdbblockutil.go Support FloatHistogram in TSDB (#11522) 2022-12-28 14:25:07 +05:30
wal.go remplace errors.Errorf by fmt.Errorf 2023-11-14 13:04:31 +00:00
wal_test.go Add Zstandard compression option for wlog (#11666) 2023-07-11 14:57:57 +02:00

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: