1431 commits

Author	SHA1	Message	Date
Ben Kochie	e14795bbf4	Remove copyright date from headers (#17785) ... Remove copyright dates from various files as part of [PROM-50]. [PROM-50]: https://github.com/prometheus/proposals/blob/main/proposals/0050-remove-copyright-dates.md Signed-off-by: SuperQ <superq@gmail.com>	2026-01-05 13:46:21 +01:00
Julius Volz	9da9e6daf4	Merge pull request #17687 from ADITYATIWARI342005/fix/utf8 ... promql/parser: fix UTF-8 label quoting in format_query endpoint	2025-12-28 12:08:07 +01:00
Julien	48e6f6a751	Merge pull request #17670 from roidelapluie/roidelapluie/promql-range ... PromQL: duration expression: add range()	2025-12-26 16:31:18 +01:00
Julien Pivotto	37b97a0200	PromQL: Fix collision in unary negation with non-overlapping series. ... Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com>	2025-12-17 11:03:55 +01:00
Julien Pivotto	b336889d8f	PromQL: Fix collision in label_join and label_replace with non-overlapping series. ... Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com>	2025-12-16 16:58:53 +01:00
ADITYA TIWARI	3a82dcc6c5	promql/parser: simplify BinaryExpr label formatting ... Signed-off-by: ADITYA TIWARI <adityatiwari342005@gmail.com>	2025-12-16 12:31:39 +00:00
Aditya Tiwari	301b9eff44	Update comments to clarify label formatting method ... Signed-off-by: Aditya Tiwari <142050150+ADITYATIWARI342005@users.noreply.github.com>	2025-12-16 12:31:39 +00:00
ADITYA TIWARI	2e4f5e8cfc	promql/parser: consolidate label quoting logic ... refactors binary expression formatting to reuse writeLabels() instead of maintaining separate joinLabels() function. adds comprehensive UTF-8 label tests for all expression types Signed-off-by: ADITYA TIWARI <adityatiwari342005@gmail.com>	2025-12-16 12:31:39 +00:00
ADITYA TIWARI	5b299ef99e	fix/promql/parser: Fix utf-8 label quoting in format_query endpoint ... Signed-off-by: ADITYA TIWARI <adityatiwari342005@gmail.com>	2025-12-16 12:31:39 +00:00
Julien Pivotto	29878f7b91	promql: Optimize mergeSeriesWithSameLabelset for common case ... Add fast path that returns early when no duplicate labelsets exist, avoiding allocations in the common case. For the merge case, simplify collision detection by checking for duplicate timestamps after sorting instead of building a timestamp map, reducing memory overhead. Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com>	2025-12-15 11:56:34 +01:00
Julien Pivotto	6efbb873c7	promql: Fix collision error with delayed name removal for non-overlapping series ... Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com>	2025-12-12 14:50:29 +01:00
Julien Pivotto	d0b122a711	PromQL: duration expression: add range() ... Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com>	2025-12-10 16:27:18 +01:00
Julius Volz	4cad87cae8	PromQL: Fix insufficient cardinality checking for filter ops ... Generally, binary operations between two vectors fail if there is a many-to-one or one-to-many matching situation between series within a match group and no `group_left()` or `group_right()` modifier is present. For filter ops this is also generally the case, but there can be situations where multiple series on one side can match a single series on the other side, but only 0 or 1 of those multiple series remains after the filter operator has been applied. In this case, the PromQL engine does not produce a matching error, since it only tracks series matching for those series that survive the filtering. IMO this is incorrect behavior (which can also erratically make a query sometimes fail and sometimes succeed, depending on current sample values), and we should always produce an error if there is a match error prior to applying the filter op. This PR ensures that we do the cardinality / match tracking independently of the result of the filter operation. Signed-off-by: Julius Volz <julius.volz@gmail.com>	2025-12-10 11:31:46 +01:00
Julien	f73aba34cd	Merge pull request #17427 from roidelapluie/roidelapluie/ffapi ... API: Add a /api/v1/features endpoint	2025-12-10 10:14:03 +01:00
Julien Pivotto	a5671a002f	API: Add a /api/v1/features endpoint ... Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com>	2025-12-09 16:13:14 +01:00
dongjiang	3239723098	Update golangci-lint and add modernize check (#17640) ... * add modernize check Signed-off-by: dongjiang1989 <dongjiang1989@126.com> * fix golangci lint Signed-off-by: dongjiang1989 <dongjiang1989@126.com> --------- Signed-off-by: dongjiang1989 <dongjiang1989@126.com>	2025-12-05 09:29:10 +01:00
Julien	0279e14d4a	Merge pull request #17636 from roidelapluie/roidelapluie/starttime ... Add start_timestamp field for unit tests	2025-12-04 10:47:24 +01:00
Jan Fajerski	ac5bdd66d7	Merge pull request #17634 from jan--f/sync-release-3.8 ... Sync branch release-3.8	2025-12-03 21:26:45 +01:00
Julius Volz	39e11f50b2	Fix serialization for empty ignoring() in combination with group_x() ... Currently both the backend and frontend printers/formatters/serializers incorrectly transform the following expression: ``` up * ignoring() group_left(__name__) node_boot_time_seconds ``` ...into: ``` up * node_boot_time_seconds ``` ...which yields a different result (including the metric name in the result vs. no metric name). We need to keep empty `ignoring()` modifiers if there is a grouping modifier present. Signed-off-by: Julius Volz <julius.volz@gmail.com>	2025-12-03 14:15:16 +01:00
Julien Pivotto	1a853e23db	Add start_timestamp field for unit tests. ... This commit adds support for configuring a custom start timestamp for Prometheus unit tests, allowing tests to use realistic timestamps instead of starting at Unix epoch 0. Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com>	2025-12-03 11:20:23 +01:00
Jan Fajerski	fae20b73ff	Merge branch 'release-3.8' into sync-release-3.8 ... Conflicts: storage/remote/write_handler.go storage/remote/write_handler_test.go Pick `main` Signed-off-by: Jan Fajerski <jfajersk@redhat.com>	2025-12-02 14:24:53 +01:00
harsh kumar	30be1483d1	instrumentation: add native histograms to complement high-traffic summaries (#17374) ... This adds the following native histograms (with a few classic buckets for backwards compatibility), while keeping the corresponding summaries (same name, just without `_histogram`): - `prometheus_sd_refresh_duration_histogram_seconds` - `prometheus_rule_evaluation_duration_histogram_seconds` - `prometheus_rule_group_duration_histogram_seconds` - `prometheus_target_sync_length_histogram_seconds` - `prometheus_target_interval_length_histogram_seconds` - `prometheus_engine_query_duration_histogram_seconds` Signed-off-by: Harsh <harshmastic@gmail.com> Signed-off-by: harsh kumar <135993950+hxrshxz@users.noreply.github.com> Co-authored-by: Björn Rabenstein <github@rabenste.in>	2025-11-27 18:45:35 +01:00
Andrew Hall	7bb95d548c	promql: Ensure that rate/increase/delta of histograms results in a gauge histogram. (#17608) ... Signed-off-by: Andrew Hall <andrew.hall@grafana.com>	2025-11-26 18:18:01 +01:00
Faustas Butkus	e43f1bafca	chore: fix rangeEval comment (#17607) ... Signed-off-by: Faustas Butkus <faustas.butkus@chronosphere.io>	2025-11-25 09:06:30 +00:00
Andrew Hall	1193e63896	PromQL: Modify RatioSampler to expose more methods for the benefit of downstream projects (#17516) ... Methods added: - `SampleOffset(metric *labels.Labels) float64` to calculate the sample offset for a given label set. - `AddRatioSampleWithOffset(ratioLimit, sampleOffset float64) bool` to find out whether a given sample offset falls within a given ratio limit. The already existing method `AddRatioSample(ratioLimit float64, sample *Sample) bool` is now implemented as a simple combination of the two other methods. Exposing these methods helps downstream projects to re-use the implementations including easier testing. Signed-off-by: Andrew Hall <andrew.hall@grafana.com>	2025-11-18 15:44:40 +01:00
zenador	c64dd612ef	PromQL: Fix bug with inconsistent results for queries with OR expression and EnableDelayedNameRemoval (#17161) ... Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com> Signed-off-by: zenador <zenador@users.noreply.github.com> Co-authored-by: Björn Rabenstein <github@rabenste.in>	2025-11-15 21:07:36 +01:00
Mohammad Alavi	0f5f1955e5	promql: fix histogram_fraction issue when lower falls within the first bucket (#17424) ... Signed-off-by: Mohammad Alavi <m.alavi1986@gmail.com>	2025-11-13 11:17:51 +01:00
Linas Medziunas	85150f9dec	[PERF] PromQL: only reset labels builder when needed ... Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com>	2025-11-13 11:37:53 +02:00
Bryan Boreham	37d153e5b5	[PERF] PromQL: Only look up operation name if we need it ... Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	2025-11-12 12:05:25 +00:00
Linas Medžiūnas	f330ccaf2f	[PERF] PromQL: eliminate string-keyed maps in binary vector matching (#17131) ... In this PR, we are eliminating expensive string-keyed (by signature) maps that are accessed for every sample processed. During preprocessing in rangeEval, we assign a unique number from 0 to n-1 to each of the n string signature values, and later only use this number as a label set signature. Signed-off-by: Linas Medžiūnas <linasm@users.noreply.github.com> Co-authored-by: George Krajcsovits <krajorama@users.noreply.github.com>	2025-11-12 10:43:05 +00:00
Andrew Hall	cc23e3760d	Allow for promql tests to compare expected fail message during query preparation ... Signed-off-by: Andrew Hall <andrew.hall@grafana.com>	2025-11-11 17:03:35 +08:00
Julien	2605fc9984	Merge pull request #17479 from roidelapluie/roidelapluie/fixResetChanges ... promql: fix resets/changes to return empty for anchored selectors when samples outside range	2025-11-10 11:43:06 +01:00
Ben Kochie	204249fcb5	Update golangci-lint (#17478) ... * Update golangci-lint to v2.6.0 * Fixup various linting issues. * Fixup deprecations. * Add exception for `labels.MetricName` deprecation. Signed-off-by: SuperQ <superq@gmail.com>	2025-11-05 13:47:34 +01:00
Julien Pivotto	554ea9ebfe	promql: fix resets/changes to return empty for anchored selectors when samples outside range ... The funcResets and funcChanges functions now correctly return no result when all float samples are at or before the range start for anchored selectors, consistent with the behavior of rate/increase functions. Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com>	2025-11-05 12:07:18 +01:00
Ben Kochie	48956f60d7	Update modernize (#17471) ... Apply additional Go modernize tool improvements. Signed-off-by: SuperQ <superq@gmail.com>	2025-11-04 05:13:49 +00:00
geogrego	58dbe927d5	docs: minor improvement for docs ... Signed-off-by: geogrego <geogrego@outlook.com>	2025-10-29 14:42:14 +08:00
Julius Volz	5318689046	Merge pull request #17380 from roidelapluie/roidelapluie/fixat ... promql/parser: Add string representation for AT token	2025-10-27 16:21:14 +01:00
Linas Medžiūnas	042fe9d6bd	promql: benchmark for join queries with more labels (#17130) ... * promql: benchmark for join queries with more labels Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com> * Add benchmark case for GROUP_LEFT Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com> * Address PR feedback Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com> --------- Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com>	2025-10-24 13:08:01 +01:00
Linas Medžiūnas	20815562d2	[BUGFIX] PromQL: fix more slice indexing bugs in info function (#17199) ... * [BUGFIX] PromQL: fix more slice indexing bugs in info function --------- Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com>	2025-10-23 17:39:22 +02:00
zenador	87eb072c0a	Move unit tests for info function from go file to testdata (#17307) ... Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>	2025-10-23 11:47:42 +02:00
Linas Medžiūnas	b2e7938e25	[BUGFIX] PromQL: avoid panic parsing malformed info call (#17379) ... Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com>	2025-10-23 09:42:19 +02:00
Julien Pivotto	8d4876f944	promql/parser: Add string representation for AT token ... Add the "@" string representation for the AT token in ItemTypeStr map to ensure proper token-to-string conversion. Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com>	2025-10-21 16:50:56 +02:00
Linas Medžiūnas	44df626620	promql (histograms): reconcile mismatched NHCB bounds (#17278) ... Fixes #17255. The implementation happens mostly in the Add and Sub method, but the reconciliation works for all relevant operations. For example, you can now `rate` over a range wherein the custom bucket boundaries are changing. Any custom bucket reconciliation is flagged with an info-level annotation. --------- Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com> Signed-off-by: Linas Medžiūnas <linasm@users.noreply.github.com>	2025-10-18 01:03:52 +02:00
Julius Volz	a3e404755b	Merge pull request #17354 from prometheus/fix-smoothed-anchored-formatting ... Fix formatting of range vector selectors with smoothed/anchored modifier	2025-10-17 13:36:24 +02:00
Julius Volz	9d7d544be1	Disable extended range selector modifiers again after test run ... Signed-off-by: Julius Volz <julius.volz@gmail.com>	2025-10-17 12:30:57 +02:00
Julius Volz	b7c3a2194f	Fix formatting of range vector selectors with smoothed/anchored modifier ... The modifiers were already printed as part of the VectorSelector, so for: `foo[5m] anchored` ...the output was: `foo anchored[5m] anchored` Similar to how it was already done for `@` and `offset`, I now removed these modifiers in the copy of the vector selector that is used to print the matrix selector. I also removed some unused code that restored the copy of the vector selector after overwriting its fields. AFAICS there was no use in doing that, since it was a copy already that would just be thrown away after printing, and the original selector wasn't affected. I also removed an erroneous comment in `atOffset()` where no actual copying took place and no fields were overwritten. Signed-off-by: Julius Volz <julius.volz@gmail.com>	2025-10-17 12:23:53 +02:00
Julien Pivotto	99c926b810	promql: allow 'anchored' and 'smoothed' as metric and label names ... Add ANCHORED and SMOOTHED keywords to the maybe_label and metric_identifier rules in the parser grammar, allowing them to be used as metric names and label names, similar to other keywords like 'offset', 'step', and 'bool'. This fixes an issue where expressions like `anchored{job="test"}` and `sum by (smoothed) (some_metric)` would fail to parse. Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com>	2025-10-17 12:10:52 +02:00
beorn7	ad7d1aed99	Phase out native histogram feature flag ... The detailed plan for this is laid out in https://github.com/prometheus/prometheus/issues/16572 . This commit adds a global and local scrape config option `scrape_native_histograms`, which has to be set to true to ingest native histograms. To ease the transition, the feature flag is changed to simply set the default of `scrape_native_histograms` to true. Further implications: - The default scrape protocols now depend on the `scrape_native_histograms` setting. - Everywhere else, histograms are now "on by default". Documentation beyond the one for the feature flag and the scrape config are deliberately left out. See https://github.com/prometheus/prometheus/pull/17232 for that. Signed-off-by: beorn7 <beorn@grafana.com>	2025-10-15 14:50:52 +02:00
beorn7	e80a3e1b21	promql: Check 1st histogram's CRH in sum_over_time ... avg_over_time already correctly checked the counter reset hint fo all histograms, but in sum_over_time, the 1st histogram was missed. In both cases, the 1st histogram is processed outside the loop. Signed-off-by: beorn7 <beorn@grafana.com>	2025-10-14 00:56:07 +02:00
beorn7	ff49406cba	promql: Expose bug of not checking 1st histogram for CRH ... avg_over_time already correctly checked the counter reset hint fo all histograms, but in sum_over_time, the 1st histogram was missed in the loop. This commit exposes the bug in a test. Signed-off-by: beorn7 <beorn@grafana.com>	2025-10-14 00:52:23 +02:00