History

Baskar Shanmugam f731a90a7f Fix LabelValueStats in posting stats (#12342 ) Problem: LabelValueStats - This will provide a list of the label names and memory used in bytes. It is calculated by adding the length of all values for a given label name. But internally Prometheus stores the name and the value independently for each series. Solution: MemPostings struct maintains the values to seriesRef map which is used to get the number of series which contains the label values. Using that LabelValueStats is calculated as: seriesCnt * len(value name) Signed-off-by: Baskar Shanmugam <baskar.shanmugam.career@gmail.com>		2 years ago
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agent	tsdb: drop deleted series from the WAL sooner (#12297 )	2 years ago
chunkenc	Fix HistogramAppender.Appendable array out of bound error	2 years ago
chunks	…
docs	…
encoding	…
errors	…
fileutil	…
goversion	…
index	Fix LabelValueStats in posting stats (#12342 )	2 years ago
record	…
testdata	…
tombstones	Copy tombstone intervals to avoid race (#12245 )	2 years ago
tsdbutil	…
wlog	[tsdb] re-implement WAL watcher to read via a "notification" channel (#11949 )	2 years ago
.gitignore	…
CHANGELOG.md	…
README.md	…
block.go	…
block_test.go	…
blockwriter.go	…
blockwriter_test.go	…
compact.go	…
compact_test.go	…
db.go	[tsdb] re-implement WAL watcher to read via a "notification" channel (#11949 )	2 years ago
db_test.go	…
example_test.go	…
exemplar.go	…
exemplar_test.go	…
head.go	[tsdb] re-implement WAL watcher to read via a "notification" channel (#11949 )	2 years ago
head_append.go	[tsdb] re-implement WAL watcher to read via a "notification" channel (#11949 )	2 years ago
head_bench_test.go	…
head_read.go	…
head_read_test.go	…
head_test.go	Merge pull request #12055 from leizor/leizor/prometheus/issues/12009	2 years ago
head_wal.go	…
isolation.go	…
isolation_test.go	…
mocks_test.go	…
ooo_head.go	…
ooo_head_read.go	…
ooo_head_read_test.go	…
ooo_head_test.go	…
querier.go	MatchNotRegexp optimization	2 years ago
querier_bench_test.go	MatchNotRegexp optimization	2 years ago
querier_test.go	Copy tombstone intervals to avoid race (#12245 )	2 years ago
repair.go	…
repair_test.go	…
tsdbblockutil.go	…
wal.go	…
wal_test.go	…

README.md

TSDB

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

Documentation

External resources

A writeup of the original design can be found here.
Video: Storing 16 Bytes at Scale from PromCon 2017.
Compression is based on the Gorilla TSDB white paper.

A series of blog posts explaining different components of TSDB: