The Prometheus monitoring system and time series database.

prometheus hacktoberfest metrics alerting graphing monitoring time-series

Oleg Zaytsev b1ed4a0a66 LabelNames API with matchers (#9083 ) * Push the matchers for LabelNames all the way into the index. NB This doesn't actually implement it in the index, just plumbs it through for now... Signed-off-by: Tom Wilkie <tom@grafana.com> * Hack it up. Does not work. Signed-off-by: Tom Wilkie <tom@grafana.com> * Revert changes I don't understand Can't see why do we need to hold a mutex on symbols, and the purpose of the LabelNamesFor method. Maybe I'll need to re-add this later. Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Implement LabelNamesFor This method provides the label names that appear in the postings provided. We do that deeper than the label values because we know beforehand that most of the label names we'll be the same across different postings, and we don't want to go down an up looking up the same symbols for all different series. Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Mutex on symbols should be unlocked However, I still don't understand why do we need a mutex here. Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Fix head.LabelNamesFor Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Implement mockIndex LabelNames with matchers Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Nitpick on slice initialisation Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Add tests for LabelNamesWithMatchers Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Fix the mutex mess on head.LabelValues/LabelNames I still don't see why we need to grab that unrelated mutex, but at least now we're grabbing it consistently Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Check error after iterating postings Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Use the error from posting when there was en error in postings Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Update storage/interface.go comment Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> * Update tsdb/index/index.go comment Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> * Update tsdb/index/index.go wrapped error msg Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> * Update tsdb/index/index.go wrapped error msg Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> * Update tsdb/index/index.go warpped error msg Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> * Remove unneeded comment Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Add testcases for LabelNames w/matchers in api.go Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Use t.Cleanup() instead of defer in tests Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> Co-authored-by: Tom Wilkie <tom@grafana.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>		3 years ago
..
chunkenc	Use binary literals for xor chunk encoding	3 years ago
chunks	Stop the bleed on chunk mapper panic (#8723 )	4 years ago
docs/format	Add Exemplar Remote Write support (#8296 )	4 years ago
encoding	…
errors	MultiError: Refactored MultiError for more concise and safe usage. (#8066 )	4 years ago
fileutil	More info in mmap error message (#8058 )	4 years ago
goversion	tsdb: test for leaks (#7566 )	4 years ago
index	LabelNames API with matchers (#9083 )	3 years ago
record	Add Exemplar Remote Write support (#8296 )	4 years ago
test	labels: Reduce allocated memory and latency of Hash method; Added tests. (#8025 )	4 years ago
testdata	tsdb: Delete blocks atomically; Remove tmp blocks on start; Added test. (#7772 )	4 years ago
tombstones	Switched to go-kit/log	4 years ago
tsdbutil	storage: Split chunks if more than 120 samples (#8582 )	4 years ago
wal	Switched to go-kit/log	4 years ago
.gitignore	…
CHANGELOG.md	Rename default branch to main	4 years ago
README.md	Replace godoc.org links	3 years ago
block.go	LabelNames API with matchers (#9083 )	3 years ago
block_test.go	LabelNames API with matchers (#9083 )	3 years ago
blockwriter.go	Switched to go-kit/log	4 years ago
blockwriter_test.go	Switched to go-kit/log	4 years ago
compact.go	Switched to go-kit/log	4 years ago
compact_test.go	Switched to go-kit/log	4 years ago
db.go	tsdb: Block Head GC till pending readers are done reading (#9081 )	3 years ago
db_test.go	tsdb: Block Head GC till pending readers are done reading (#9081 )	3 years ago
exemplar.go	Exemplar resize (#8974 )	3 years ago
exemplar_test.go	Exemplar resize (#8974 )	3 years ago
head.go	LabelNames API with matchers (#9083 )	3 years ago
head_bench_test.go	React UI: Add Starting Screen (#8662 )	4 years ago
head_test.go	LabelNames API with matchers (#9083 )	3 years ago
isolation.go	tsdb: Block Head GC till pending readers are done reading (#9081 )	3 years ago
isolation_test.go	tsdb: Block Head GC till pending readers are done reading (#9081 )	3 years ago
mocks_test.go	Move away from testutil, refactor imports (#8087 )	4 years ago
querier.go	LabelNames API with matchers (#9083 )	3 years ago
querier_bench_test.go	React UI: Add Starting Screen (#8662 )	4 years ago
querier_test.go	LabelNames API with matchers (#9083 )	3 years ago
repair.go	Switched to go-kit/log	4 years ago
repair_test.go	React UI: Add Starting Screen (#8662 )	4 years ago
tsdbblockutil.go	Switched to go-kit/log	4 years ago
wal.go	Switched to go-kit/log	4 years ago
wal_test.go	Switched to go-kit/log	4 years ago

README.md

TSDB

This directory contains the Prometheus storage layer that is used in its 2.x releases.

A writeup of its design can be found here.

Based on the Gorilla TSDB white papers.

Video: Storing 16 Bytes at Scale from PromCon 2017.