prometheus/tsdb
Ganesh Vernekar 095f572d4a
Sync sparsehistogram branch with main (#9189)
* Fix `kuma_sd` targetgroup reporting (#9157)

* Bundle all xDS targets into a single group

Signed-off-by: austin ce <austin.cawley@gmail.com>

* Snapshot in-memory chunks on shutdown for faster restarts (#7229)

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Rename links

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Remove Individual Data Type Caps in Per-shard Buffering for Remote Write (#8921)

* Moved everything to nPending buffer

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Simplify exemplar capacity addition

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Added pre-allocation

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Don't allocate if not sending exemplars

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Avoid deadlock when processing duplicate series record (#9170)

* Avoid deadlock when processing duplicate series record

`processWALSamples()` needs to be able to send on its output channel
before it can read the input channel, so reads to allow this in case the
output channel is full.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* processWALSamples: update comment

Previous text seems to relate to an earlier implementation.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* Optimise WAL loading by removing extra map and caching min-time (#9160)

* BenchmarkLoadWAL: close WAL after use

So that goroutines are stopped and resources released

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* BenchmarkLoadWAL: make series IDs co-prime with #workers

Series are distributed across workers by taking the modulus of the
ID with the number of workers, so multiples of 100 are a poor choice.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* BenchmarkLoadWAL: simulate mmapped chunks

Real Prometheus cuts chunks every 120 samples, then skips those samples
when re-reading the WAL. Simulate this by creating a single mapped chunk
for each series, since the max time is all the reader looks at.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* Fix comment

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* Remove series map from processWALSamples()

The locks that is commented to reduce contention in are now sharded
32,000 ways, so won't be contended. Removing the map saves memory and
goes just as fast.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* loadWAL: Cache the last mmapped chunk time

So we can skip calling append() for samples it will reject.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* Improvements from code review

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* Full stops and capitals on comments

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* Cache max time in both places mmappedChunks is updated

Including refactor to extract function `setMMappedChunks`, to reduce
code duplication.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* Update head min/max time when mmapped chunks added

This ensures we have the correct values if no WAL samples are added for
that series.

Note that `mSeries.maxTime()` was always `math.MinInt64` before, since
that function doesn't consider mmapped chunks.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* Split Go and React Tests (#8897)

* Added go-ci and react-ci

Co-authored-by: Julien Pivotto <roidelapluie@inuits.eu>
Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Remove search keymap from new expression editor (#9184)

Signed-off-by: Julius Volz <julius.volz@gmail.com>

Co-authored-by: Austin Cawley-Edwards <austin.cawley@gmail.com>
Co-authored-by: Levi Harrison <git@leviharrison.dev>
Co-authored-by: Julien Pivotto <roidelapluie@inuits.eu>
Co-authored-by: Bryan Boreham <bjboreham@gmail.com>
Co-authored-by: Julius Volz <julius.volz@gmail.com>
2021-08-11 15:43:17 +05:30
..
chunkenc Support storing the zero threshold in the histogram chunk (#9165) 2021-08-06 18:08:41 +05:30
chunks remove redundant parentheses (#9134) 2021-07-29 18:26:57 +05:30
docs/format Sync sparsehistogram branch with main (#9189) 2021-08-11 15:43:17 +05:30
encoding Sync sparsehistogram branch with main (#9189) 2021-08-11 15:43:17 +05:30
errors MultiError: Refactored MultiError for more concise and safe usage. (#8066) 2020-10-28 15:24:58 +00:00
fileutil More info in mmap error message (#8058) 2020-10-15 12:58:13 +05:30
goversion tsdb: test for leaks (#7566) 2020-07-21 10:08:06 +02:00
index LabelNames API with matchers (#9083) 2021-07-20 18:08:08 +05:30
record Append sparse histograms into the Head block (#9013) 2021-06-29 20:08:46 +05:30
test labels: Reduce allocated memory and latency of Hash method; Added tests. (#8025) 2020-10-15 11:31:28 +01:00
testdata tsdb: Delete blocks atomically; Remove tmp blocks on start; Added test. (#7772) 2020-08-11 06:56:08 +01:00
tombstones Switched to go-kit/log 2021-06-11 12:28:36 -04:00
tsdbutil Query histograms from TSDB and unit test for append+query (#9022) 2021-06-30 20:18:13 +05:30
wal Sync sparsehistogram branch with main (#9189) 2021-08-11 15:43:17 +05:30
.gitignore Moving tsdb into its own subdirectory 2019-08-13 13:58:49 +05:30
CHANGELOG.md Rename default branch to main 2021-02-22 20:28:02 +01:00
README.md Replace godoc.org links 2021-06-17 07:18:51 -04:00
block.go LabelNames API with matchers (#9083) 2021-07-20 18:08:08 +05:30
block_test.go LabelNames API with matchers (#9083) 2021-07-20 18:08:08 +05:30
blockwriter.go Switched to go-kit/log 2021-06-11 12:28:36 -04:00
blockwriter_test.go Switched to go-kit/log 2021-06-11 12:28:36 -04:00
compact.go Switched to go-kit/log 2021-06-11 12:28:36 -04:00
compact_test.go Compare block sizes with sparse histograms (#9045) 2021-07-08 11:01:53 +05:30
db.go Sync sparsehistogram branch with main (#9189) 2021-08-11 15:43:17 +05:30
db_test.go tsdb: Block Head GC till pending readers are done reading (#9081) 2021-07-20 14:17:20 +05:30
exemplar.go Exemplar resize (#8974) 2021-07-20 10:22:57 +05:30
exemplar_test.go Exemplar resize (#8974) 2021-07-20 10:22:57 +05:30
head.go Sync sparsehistogram branch with main (#9189) 2021-08-11 15:43:17 +05:30
head_append.go Sync sparsehistogram branch with main (#9189) 2021-08-11 15:43:17 +05:30
head_bench_test.go React UI: Add Starting Screen (#8662) 2021-06-05 15:29:32 +01:00
head_read.go Merge remote-tracking branch 'upstream/main' into sparse-refactor 2021-08-05 12:16:08 +05:30
head_test.go Sync sparsehistogram branch with main (#9189) 2021-08-11 15:43:17 +05:30
head_wal.go Sync sparsehistogram branch with main (#9189) 2021-08-11 15:43:17 +05:30
isolation.go Add present_over_time (#9097) 2021-07-29 12:38:11 +02:00
isolation_test.go tsdb: Block Head GC till pending readers are done reading (#9081) 2021-07-20 14:17:20 +05:30
mocks_test.go Move away from testutil, refactor imports (#8087) 2020-10-22 11:00:08 +02:00
querier.go Merge remote-tracking branch 'upstream/main' into sparse-refactor 2021-08-05 12:16:08 +05:30
querier_bench_test.go React UI: Add Starting Screen (#8662) 2021-06-05 15:29:32 +01:00
querier_test.go LabelNames API with matchers (#9083) 2021-07-20 18:08:08 +05:30
repair.go Switched to go-kit/log 2021-06-11 12:28:36 -04:00
repair_test.go React UI: Add Starting Screen (#8662) 2021-06-05 15:29:32 +01:00
tsdbblockutil.go Switched to go-kit/log 2021-06-11 12:28:36 -04:00
wal.go Switched to go-kit/log 2021-06-11 12:28:36 -04:00
wal_test.go Switched to go-kit/log 2021-06-11 12:28:36 -04:00

README.md

TSDB

GoPkg

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.

See also the format documentation.

A series of blog posts explaining different components of TSDB: