The Prometheus monitoring system and time series database.

prometheus hacktoberfest metrics alerting graphing monitoring time-series

Oleg Zaytsev 8553a98267 Optimize postings offset table reading (#11535 ) * Add BenchmarkOpenBlock * Use specific types when reading offset table Instead of reading a generic-ish []string, we can read a generic type which would be specifically labels.Label. This avoid allocating a slice that escapes to the heap, making it both faster and more efficient in terms of memory management. * Update error message for unexpected number of keys * s/posting offset table/postings offset table/ * Remove useless lastKey assignment * Use two []bytes vars, simplify Applied PR feedback: removed generics, moved the label indices reading to that specific test as we're not using it in production anyway, we're just testing what we've just built. Also using two []bytes variables for name and value that use the backing buffer instead of using strings, this reduces allocations a lot as we only copy them when we store them (this is optimized by the compiler). * Fix the dumb bug Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> Co-authored-by: Marco Pracucci <marco@pracucci.com>		2 years ago
..
agent	Merge remote-tracking branch 'upstream/main' into fix-conflict	2 years ago
chunkenc	chunkenc: Slightly optimize xorWrite/xoRead (#11476 )	2 years ago
chunks	Replace sort.Strings and sort.Ints with faster slices.Sort (#11318 )	2 years ago
docs	…
encoding	Merge 'main' into sparsehistogram	2 years ago
errors	…
fileutil	…
goversion	…
index	Optimize postings offset table reading (#11535 )	2 years ago
record	Merge 'main' into sparsehistogram	2 years ago
test	…
testdata	…
tombstones	…
tsdbutil	Fix merge conflicts	2 years ago
wlog	Merge remote-tracking branch 'upstream/main' into fix-conflict	2 years ago
.gitignore	…
CHANGELOG.md	…
README.md	Fixed broken link in tsdb README.md	2 years ago
block.go	tsdb: fix up sort call with faster slices.Sort (#11380 )	2 years ago
block_test.go	Optimize postings offset table reading (#11535 )	2 years ago
blockwriter.go	Merge 'main' into sparsehistogram	2 years ago
blockwriter_test.go	…
compact.go	…
compact_test.go	Fix merge conflicts	2 years ago
db.go	Merge pull request #11447 from prometheus/sparsehistogram	2 years ago
db_test.go	Merge remote-tracking branch 'upstream/main' into fix-conflict	2 years ago
example_test.go	…
exemplar.go	…
exemplar_test.go	…
head.go	Fix alignment of atomic int64 (#11547 )	2 years ago
head_append.go	Fix merge conflicts	2 years ago
head_bench_test.go	Add out-of-order sample support to the TSDB (#11075 )	2 years ago
head_read.go	Fix merge conflicts	2 years ago
head_read_test.go	Fix merge conflicts	2 years ago
head_test.go	Fix the build after conflict resolution	2 years ago
head_wal.go	Fix the build after conflict resolution	2 years ago
isolation.go	tsdb: turn off transaction isolation for head compaction (#11317 )	2 years ago
isolation_test.go	tsdb: turn off transaction isolation for head compaction (#11317 )	2 years ago
mocks_test.go	…
ooo_head.go	Fix merge conflicts	2 years ago
ooo_head_read.go	Add out-of-order sample support to the TSDB (#11075 )	2 years ago
ooo_head_read_test.go	Fix merge conflicts	2 years ago
ooo_head_test.go	Fix merge conflicts	2 years ago
querier.go	Merge 'main' into sparsehistogram	2 years ago
querier_bench_test.go	Add out-of-order sample support to the TSDB (#11075 )	2 years ago
querier_test.go	Merge 'main' into sparsehistogram	2 years ago
repair.go	…
repair_test.go	…
tsdbblockutil.go	…
wal.go	TSDB: Rename wal package to wlog (#11352 )	2 years ago
wal_test.go	TSDB: Rename wal package to wlog (#11352 )	2 years ago

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: