History

beorn7 c3c7d44d84 lint: Adjust to the lint warnings raised by current versions of golint-ci We haven't updated golint-ci in our CI yet, but this commit prepares for that. There are a lot of new warnings, and it is mostly because the "revive" linter got updated. I agree with most of the new warnings, mostly around not naming unused function parameters (although it is justified in some cases for documentation purposes – while things like mocks are a good example where not naming the parameter is clearer). I'm pretty upset about the "empty block" warning to include `for` loops. It's such a common pattern to do something in the head of the `for` loop and then have an empty block. There is still an open issue about this: https://github.com/mgechev/revive/issues/810 I have disabled "revive" altogether in files where empty blocks are used excessively, and I have made the effort to add individual `// nolint:revive` where empty blocks are used just once or twice. It's borderline noisy, though, but let's go with it for now. I should mention that none of the "empty block" warnings for `for` loop bodies were legitimate. Signed-off-by: beorn7 <beorn@grafana.com>		2 years ago
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agent	lint: Adjust to the lint warnings raised by current versions of golint-ci	2 years ago
chunkenc	lint: Adjust to the lint warnings raised by current versions of golint-ci	2 years ago
chunks	lint: Adjust to the lint warnings raised by current versions of golint-ci	2 years ago
docs	…
encoding	…
errors	Fix context.Canceled wrapping in compaction	2 years ago
fileutil	…
goversion	lint: Adjust to the lint warnings raised by current versions of golint-ci	2 years ago
index	Making the number of CPU cores used for sorting postings lists editable (#12247 )	2 years ago
record	tsdb: Add counter reset hint to histograms and support in WAL	2 years ago
testdata	…
tombstones	…
tsdbutil	Name float values as "floats", not as "values"	2 years ago
wlog	lint: Adjust to the lint warnings raised by current versions of golint-ci	2 years ago
.gitignore	…
CHANGELOG.md	…
README.md	…
block.go	tsdb: sort values for Postings only when required	2 years ago
block_test.go	Name float values as "floats", not as "values"	2 years ago
blockwriter.go	…
blockwriter_test.go	Name float values as "floats", not as "values"	2 years ago
compact.go	Rename PopulateBlockFunc to BlockPopulator	2 years ago
compact_test.go	lint: Adjust to the lint warnings raised by current versions of golint-ci	2 years ago
db.go	Adds an affirmative log message for successful WAL repair (#12135 )	2 years ago
db_test.go	lint: Adjust to the lint warnings raised by current versions of golint-ci	2 years ago
example_test.go	…
exemplar.go	lint: Adjust to the lint warnings raised by current versions of golint-ci	2 years ago
exemplar_test.go	…
head.go	Making the number of CPU cores used for sorting postings lists editable (#12247 )	2 years ago
head_append.go	tsdb: Improve a couple of histogram documentation comments	2 years ago
head_bench_test.go	…
head_read.go	tsdb: Fix a comment in tsdb/head_read.go	2 years ago
head_read_test.go	…
head_test.go	lint: Adjust to the lint warnings raised by current versions of golint-ci	2 years ago
head_wal.go	lint: Adjust to the lint warnings raised by current versions of golint-ci	2 years ago
isolation.go	…
isolation_test.go	…
mocks_test.go	…
ooo_head.go	Name float values as "floats", not as "values"	2 years ago
ooo_head_read.go	lint: Adjust to the lint warnings raised by current versions of golint-ci	2 years ago
ooo_head_read_test.go	Name float values as "floats", not as "values"	2 years ago
ooo_head_test.go	Name float values as "floats", not as "values"	2 years ago
querier.go	lint: Adjust to the lint warnings raised by current versions of golint-ci	2 years ago
querier_bench_test.go	lint: Adjust to the lint warnings raised by current versions of golint-ci	2 years ago
querier_test.go	lint: Adjust to the lint warnings raised by current versions of golint-ci	2 years ago
repair.go	…
repair_test.go	…
tsdbblockutil.go	Support FloatHistogram in TSDB (#11522 )	2 years ago
wal.go	lint: Adjust to the lint warnings raised by current versions of golint-ci	2 years ago
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: