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prometheus/tsdb
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Björn Rabenstein d80b0810c1
Move crucial actions to defer (#6918) 
With defer having less of a performance penalty, there is no reason
not to do those crucial operations via defer.

Context: With isolation in place, if we forget to Commit/Rollback, the
low watermark will get stuck forever.

The current code should not have any bugs, but moving to defer helps
to avoid future bugs.

This is also moving the `closeAppend` in the `Commit` implementation
itself to defer. If logging to the WAL fails, we would have missed the
`closeAppend`.

Signed-off-by: beorn7 <beorn@grafana.com>
2020-03-13 20:54:47 +01:00
..
chunkenc Specify that returned samples must be ordered by timestamp. (#6877) 2020-02-26 13:11:55 +00:00
chunks Refactor tsdb/chunks/chunks.go for future PRs (#6754) 2020-02-05 19:09:40 +05:30
cmd/tsdb Make head Postings only return series in time range 2020-02-20 22:41:46 +01:00
docs/format Stream symbols during compaction. (#6468) 2019-12-17 19:49:54 +00:00
encoding Avoid WriteAt for Postings. 2019-12-16 15:30:49 +00:00
errors Moving tsdb into its own subdirectory 2019-08-13 13:58:49 +05:30
fileutil Add OpenMmapFileWithSize method (#6753) 2020-02-05 19:08:30 +05:30
goversion Fix some typo in comments (#6730) 2020-01-31 12:11:52 +05:30
index tsdb: writePostingsToTmpFiles returns nil instead of err (#6618) 2020-01-13 22:40:12 +00:00
record Spelling (#6517) 2020-01-02 15:54:09 +01:00
test Port tsdb to use pkg/labels. (#6326) 2019-11-18 11:53:33 -08:00
testdata Handle V1 indexes, some of which have unsorted posting offset tables. (#6564) 2020-01-06 14:06:11 +00:00
tombstones Bring back tombstones to Head block (#6542) 2020-01-20 21:08:00 +05:30
tsdbutil Removed extra tsdb/testutil after merge. 2019-08-14 10:12:32 +01:00
wal remove Unused parameter 'reg' in wal.Open function (#6941) 2020-03-10 11:01:47 +05:30
.gitignore Moving tsdb into its own subdirectory 2019-08-13 13:58:49 +05:30
block.go Make head Postings only return series in time range 2020-02-20 22:41:46 +01:00
block_test.go Unify Iterator interfaces. All point to storage now. 2020-02-17 18:03:54 +00:00
CHANGELOG.md Spelling (#6517) 2020-01-02 15:54:09 +01:00
compact.go Use a cryptographically random generator for ULID 2020-02-25 12:12:03 +01:00
compact_test.go Make head Postings only return series in time range 2020-02-20 22:41:46 +01:00
db.go remove Unused parameter 'reg' in wal.Open function (#6941) 2020-03-10 11:01:47 +05:30
db_test.go tsdb: don't allow ingesting empty labelsets (#6891) 2020-03-02 07:18:05 +00:00
head.go Move crucial actions to defer (#6918) 2020-03-13 20:54:47 +01:00
head_bench_test.go Make head Postings only return series in time range 2020-02-20 22:41:46 +01:00
head_test.go Do not attempt isolation for appendID == 0 2020-03-01 02:48:35 +01:00
isolation.go Do not attempt isolation for appendID == 0 2020-03-01 02:48:35 +01:00
mocks_test.go Make head Postings only return series in time range 2020-02-20 22:41:46 +01:00
querier.go Make head Postings only return series in time range 2020-02-20 22:18:42 +01:00
querier_bench_test.go Make head Postings only return series in time range 2020-02-20 22:41:46 +01:00
querier_test.go Make head Postings only return series in time range 2020-02-20 22:41:46 +01:00
README.md Edit TSDB README badges 2019-10-24 15:35:47 +05:30
repair.go tsdb: fix typo for wrong metric name (#6938) 2020-03-09 08:25:31 +00:00
repair_test.go Port tsdb to use pkg/labels. (#6326) 2019-11-18 11:53:33 -08:00
tsdbblockutil.go Unify Iterator interfaces. All point to storage now. 2020-02-17 18:03:54 +00:00
wal.go Spelling (#6517) 2020-01-02 15:54:09 +01:00
wal_test.go Spelling (#6517) 2020-01-02 15:54:09 +01:00

README.md

TSDB

GoDoc

This repository 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.

See also the format documentation.