George Krajcsovits
b8867f8ead
Merge pull request #15142 from krajorama/fix-appendhistogram-race
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bugfix: data race in head.Appender.AppendHistogram and Commit
2024-10-14 08:13:39 +02:00
Oleg Zaytsev
50ef0dc954
Fix MemPostings.Add and MemPostings.Get data race ( #15141 )
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* Tests for Mempostings.{Add,Get} data race
* Fix MemPostings.{Add,Get} data race
We can't modify the postings list that are held in MemPostings as they
might already be in use by some readers.
* Modify BenchmarkHeadStripeSeriesCreate to have common labels
If there are no common labels on the series, we don't excercise the
ordering part of MemSeries, as we're just creating slices of one element
for each label value.
---------
Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>
2024-10-11 15:21:15 +02:00
György Krajcsovits
bb70370d72
TSDB head: fix race between AppendHistogram and Commit
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Move writing memSeries lastHistogramValue and lastFloatHistogramValue
after series creation under lock.
The resulting code isn't totally correct in the sense that we're setting
these values before Commit() , so they might be overwritten/rolled back
later.
Also Append of stale sample checks the values without lock, so there's
still a potential race.
The correct solution would be to set these only in Commit() which we
actually do, but then Commit() would also need to process samples in
order and not floats first, then histograms, then float histograms - which
leads to not knowing what stale marker to write for histograms.
Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>
2024-10-10 16:59:15 +02:00
György Krajcsovits
631fadc4ca
Unit test for data race in head.Appender.AppendHistogram
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Two Appenders race when creating a series with a native histogram
as the memSeries will be common and the lastHistogram field is written
without lock.
Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>
2024-10-10 14:10:07 +02:00
beorn7
12c39d5421
docs: Some nitpicking in chunks.md
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- `float histogram` → `floathistogram`, as it is used in the code.
- Actual link encodings to the code (to find the actual numerical values).
- `<bytes>` → `<data>` for consistency.
Signed-off-by: beorn7 <beorn@grafana.com>
2024-10-09 14:32:12 +02:00
beorn7
a4cb52ff15
docs: Update chunk layot for NHCB
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Signed-off-by: beorn7 <beorn@grafana.com>
2024-10-09 14:19:20 +02:00
Björn Rabenstein
02d0de9987
Merge pull request #14997 from fionaliao/fl/update-format-docs
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Update chunk format docs with native histograms and OOO
2024-10-09 13:29:01 +02:00
TJ Hoplock
6ebfbd2d54
chore!: adopt log/slog, remove go-kit/log
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For: #14355
This commit updates Prometheus to adopt stdlib's log/slog package in
favor of go-kit/log. As part of converting to use slog, several other
related changes are required to get prometheus working, including:
- removed unused logging util func `RateLimit()`
- forward ported the util/logging/Deduper logging by implementing a small custom slog.Handler that does the deduping before chaining log calls to the underlying real slog.Logger
- move some of the json file logging functionality to use prom/common package functionality
- refactored some of the new json file logging for scraping
- changes to promql.QueryLogger interface to swap out logging methods for relevant slog sugar wrappers
- updated lots of tests that used/replicated custom logging functionality, attempting to keep the logical goal of the tests consistent after the transition
- added a healthy amount of `if logger == nil { $makeLogger }` type conditional checks amongst various functions where none were provided -- old code that used the go-kit/log.Logger interface had several places where there were nil references when trying to use functions like `With()` to add keyvals on the new *slog.Logger type
Signed-off-by: TJ Hoplock <t.hoplock@gmail.com>
2024-10-07 15:58:50 -04:00
Matthieu MOREL
ab64966e9d
fix: use "ErrorContains" or "EqualError" instead of "Contains(t, err.Error()" and "Equal(t, err.Error()" ( #15094 )
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* fix: use "ErrorContains" or "EqualError" instead of "Contains(t, err.Error()" and "Equal(t, err.Error()"
---------
Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>
Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>
Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>
2024-10-06 16:35:29 +00:00
György Krajcsovits
44ebbb8458
Fix missing histogram copy in sampleRing
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The specialized version of sample add to the ring:
func addH(s hSample, buf []hSample, r *sampleRing) []hSample
func addFH(s fhSample, buf []fhSample, r *sampleRing) []fhSample
already correctly copy histogram samples from the reused hReader, fhReader
buffers, but the generic version does not. This means that the
data is overwritten on the next read if the sample ring has seen histogram
and float samples at the same time and switched to generic mode.
The `genericAdd` function (which was commented anyway) is by now quite
different from the specialized functions so that this commit deletes
it.
Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>
2024-10-02 13:57:28 +02:00
Bryan Boreham
54de4fb780
Merge pull request #14975 from colega/process-mempostings-delete-with-gomaxprocs-workers
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Process `MemPostings.Delete()` with `GOMAXPROCS` workers
2024-09-29 07:58:42 +01:00
Fiona Liao
fd62dbc291
Update chunk format docs with native histograms and OOO
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Signed-off-by: Fiona Liao <fiona.liao@grafana.com>
2024-09-27 18:57:58 +01:00
Ayoub Mrini
105ab2e95a
fix(test): adjust defer invocations ( #14996 )
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Signed-off-by: machine424 <ayoubmrini424@gmail.com>
2024-09-27 17:13:51 +01:00
Oleg Zaytsev
ada8a6ef10
Add some more tests for MemPostings_Delete
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Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>
2024-09-27 10:14:39 +02:00
Arthur Silva Sens
d5f65cfce0
Merge pull request #14694 from prometheus/ct-histogram
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Histogram CT Zero ingestion
2024-09-26 12:48:46 -03:00
Arthur Silva Sens
95a53ef982
Join tests for appending float and histogram CTs
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Signed-off-by: Arthur Silva Sens <arthursens2005@gmail.com>
2024-09-26 11:29:31 -03:00
Arthur Silva Sens
6bd9b1a7cc
Histogram CT Zero ingestion
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Signed-off-by: Arthur Silva Sens <arthursens2005@gmail.com>
2024-09-26 11:29:22 -03:00
Oleg Zaytsev
4fd2556baa
Extract processWithBoundedParallelismAndConsistentWorkers
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Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>
2024-09-26 15:43:19 +02:00
Oleg Zaytsev
ccd0308abc
Don't do anything if MemPostings are empty
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Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>
2024-09-25 15:00:10 +02:00
Oleg Zaytsev
9c417aa710
Fix deadlock with empty MemPostings
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Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>
2024-09-25 14:08:50 +02:00
Bryan Boreham
5d8f0ef0c2
Merge pull request #14721 from bboreham/exp-grow-postings
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[PERF] TSDB: Grow postings by doubling
2024-09-25 10:47:55 +01:00
Oleg Zaytsev
e196b977af
Process MemPostings.Delete() with GOMAXPROCS workers
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We are still seeing lock contention on MemPostings.mtx, and MemPostings.Delete() is by far the most expensive operation on that mutex.
This adds parallelism to that method, trying to reduce the amount of time we spend with the mutex held.
Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>
2024-09-25 10:38:47 +02:00
Bryan Boreham
ca673eb749
Merge remote-tracking branch 'origin/release-2.55' into merge-2.55-into-main
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Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2024-09-22 17:49:34 +01:00
Bryan Boreham
31c5760551
Neater string vs byte-slice conversions ( #14425 )
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unsafe.Slice and unsafe.StringData were added in Go 1.20
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2024-09-21 12:19:21 +02:00
Bryan Boreham
d42232e178
Merge pull request #14932 from bboreham/chunk-xor-combine-writebits
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[PERF] TSDB: Chunk encoding: shorten some write sequences
2024-09-20 17:53:54 +01:00
Bryan Boreham
6f0d6038b7
[BUGFIX] TSDB: Only query chunks up to truncation time ( #14948 )
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If the query overlaps the range currently undergoing compaction, we
should only fetch chunks up to that time. Need to store that min time
in `HeadAndOOOIndexReader`.
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2024-09-20 17:44:04 +01:00
Bryan Boreham
9215252221
[BUGFIX] TSDB: Only query chunks up to truncation time ( #14948 )
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If the query overlaps the range currently undergoing compaction, we
should only fetch chunks up to that time. Need to store that min time
in `HeadAndOOOIndexReader`.
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2024-09-20 18:40:17 +02:00
Ganesh Vernekar
5ccb069414
Backward compatibility with upcoming index v3
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Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
2024-09-19 10:27:52 +01:00
George Krajcsovits
0d22a91267
Merge pull request #14874 from krajorama/fix-panic-in-ooo-query2
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BUGFIX: TSDB: panic in chunk querier
2024-09-19 10:03:53 +01:00
Bryan Boreham
e8c2d916ec
lint
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Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2024-09-18 15:23:46 +01:00
Bryan Boreham
648a668835
[PERF] Chunk encoding: combine timestamp writes
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Instead of a 2-bit write followed by a 14-bit write, do two 8-bit
writes, which goes much faster since it avoids looping.
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2024-09-18 13:19:21 +01:00
Bryan Boreham
b9a9689aae
[PERF] Chunk encoding: simplify writeByte
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Rather than append a zero then set the value at that position, append the value.
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2024-09-18 13:19:04 +01:00
Bryan Boreham
b65f1b6560
TSDB: Improve xor-chunk benchmarks
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Benchmarks must do the same work N times.
Run 3 cases, where the values are constant, vary a bit, and vary a lot.
Also aim for 120 samples same as TSDB default.
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2024-09-18 13:14:49 +01:00
Bryan Boreham
bb47f78929
Merge pull request #14505 from marioferh/improve_performance_regex
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[CHANGE] regexp . to match \n and optimize performance
2024-09-18 09:54:16 +01:00
Antoine Pultier
d90d0976b5
fix(bstream/writeByte): ensure it appends only one byte ( #14854 )
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fix(bstream/writeByte): ensure it appends only one byte
Signed-off-by: Antoine Pultier <antoine.pultier@sintef.no>
2024-09-17 16:28:33 +02:00
machine424
d1b4312f0a
fix(wlog/watcher_test.go): make TestRun_AvoidNotifyWhenBehind more resilient
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Signed-off-by: machine424 <ayoubmrini424@gmail.com>
2024-09-17 13:11:04 +02:00
Mario Fernandez
5814920601
Fix: optimize .* regexp performance
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Shortcut for `.*` matches newlines as well.
Add preamble change ^(?s:
Add test
dotAll flag por al regex
Add and fix regex tests
Signed-off-by: Mario Fernandez <mariofer@redhat.com>
2024-09-17 12:18:31 +02:00
Bryan Boreham
d5f4fabd12
Merge pull request #14911 from bboreham/clarify-postings-benchmark
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TSDB: Simplify benchmark regexps
2024-09-17 11:52:13 +02:00
Carrie Edwards
14e3c05ce8
tsdb: Add support for ingestion of out-of-order native histogram samples ( #14546 )
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Add support for ingesting OOO native histograms
* Add flag for enabling and disabling OOO native histogram ingestion
* Update OOO querying tests to include native histogram samples
* Add OOO head tests
* Add test for OOO native histogram counter reset headers
Signed-off-by: Carrie Edwards <edwrdscarrie@gmail.com>
Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>
Co-authored by: Carrie Edwards <edwrdscarrie@gmail.com>
Co-authored by: Jeanette Tan <jeanette.tan@grafana.com>
Co-authored by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>
Co-authored by: Fiona Liao <fiona.liao@grafana.com>
2024-09-17 11:19:06 +02:00
Harry John
919dc0cbc6
storage: Update LabelQuerier interface to return sorted label values ( #14849 )
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* Change LabelQuerier.LabelValues() to return sorted values
---------
Signed-off-by: 🌲 Harry 🌊 John 🏔 <johrry@amazon.com>
2024-09-17 08:55:02 +02:00
Bryan Boreham
a8133f3e87
TSDB: Simplify benchmark regexps
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Several regexps were coded like `"^.*$"`, which is an unnatural
formulation nobody is likely to use. Inside `NewMatcher`, `^` and `$`
are added anyway, which makes the form in the benchmark redundant.
It even printed it out in the expected way.
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2024-09-16 17:48:05 +01:00
George Krajcsovits
5aa3d8260a
TSDB: OOO native histograms: prep for multiple ooo head chunks ( #14850 )
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* tsdb: mmapCurrentOOOHeadChunk prepare for multiple ooo chunks
Currently float samples can only create a single ooo head chunk, but
native histograms can result in multiple due to counter resets, etc.
Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>
* tsdb: getOOOSeriesChunks prepare for multiple ooo chunks
Currently float samples can only create a single ooo head chunk, but
native histograms can result in multiple due to counter resets, etc.
Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>
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Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>
2024-09-11 23:55:39 +01:00
Nathan Baulch
50cd453c8f
chore: Fix typos ( #14868 )
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* Fix typos
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Signed-off-by: Nathan Baulch <nathan.baulch@gmail.com>
2024-09-10 22:32:03 +02:00
Bryan Boreham
16e5e99546
Merge pull request #14767 from bboreham/fix-encoding-comment
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[Comment] Correct the comment on Decbuf.UvarintBytes
2024-09-09 12:52:36 +01:00
György Krajcsovits
d3f4e7c223
Remove unnecessary conversion
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Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>
2024-09-09 12:51:02 +02:00
György Krajcsovits
60ab1cc5a5
BUGFIX: TSDB: panic in chunk querier
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Followup to #14831
Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>
2024-09-09 12:43:02 +02:00
George Krajcsovits
536d9f9ce9
BUGFIX: TSDB: panic in query during truncation with OOO head ( #14831 )
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Check if headQuerier is nil before trying to use it.
* TestQueryOOOHeadDuringTruncate: unit test to check query during truncate
Regression test for #14822
* Simulate race between query and Compact()
Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>
2024-09-05 17:17:42 +01:00
Joshua Hesketh
f2064c7987
NH: Do not re-use spans between histograms ( #14771 )
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promql, tsdb (histograms): Do not re-use spans between histograms
When multiple points exist with the same native histogram schemas they
share their spans.
This causes a problem when a native histogram (NH) schema is modified (for example, during
a Sum) then the other NH's with the same spans are also modified. As such,
we should create a new Span for each NH. This will ensure NH's interfaces
are safe to use without considering the effect on other histograms.
At the moment this doesn't present itself as a problem because in all
aggregations and functions operating on native histograms they are copied
by the promql query engine first.
Signed-off-by: Joshua Hesketh <josh@nitrotech.org>
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Signed-off-by: Joshua Hesketh <josh@nitrotech.org>
2024-09-04 12:07:16 +02:00
George Krajcsovits
282fb1632a
Merge pull request #14772 from krajorama/fix-mockseriesiterator
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Fix: chunkenc.MockSeriesIterator
2024-09-03 16:55:26 +02:00
Arthur Silva Sens
442f24e099
chore: Simplify TestHeadAppender_AppendCTZeroSample ( #14812 )
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Signed-off-by: Arthur Silva Sens <arthursens2005@gmail.com>
2024-09-02 21:30:37 +01:00
