prometheus

Commit Graph

Author	SHA1	Message	Date
Björn Rabenstein	1639450172	Merge pull request #14821 from charleskorn/nh-negative-multiplication-division promql: correctly handle unary negation of native histograms and add tests for multiplication and division of native histograms by negative scalars Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	2 months ago
Bryan Boreham	85cc1e941d	Merge pull request #14939 from prometheus/redo-14934 [release-2.55] TSDB: Backward compatibility with upcoming index v3	2 months ago
beorn7	6fcd225aee	promql(native histograms): Introduce exponential interpolation The linear interpolation (assuming that observations are uniformly distributed within a bucket) is a solid and simple assumption in lack of any other information. However, the exponential bucketing used by standard schemas of native histograms has been chosen to cover the whole range of observations in a way that bucket populations are spread out over buckets in a reasonably way for typical distributions encountered in real-world scenarios. This is the origin of the idea implemented here: If we divide a given bucket into two (or more) smaller exponential buckets, we "most naturally" expect that the samples in the original buckets will split among those smaller buckets in a more or less uniform fashion. With this assumption, we end up with an "exponential interpolation", which therefore appears to be a better match for histograms with exponential bucketing. This commit leaves the linear interpolation in place for NHCB, but changes the interpolation for exponential native histograms to exponential. This affects `histogram_quantile` and `histogram_fraction` (because the latter is more or less the inverse of the former). The zero bucket has to be treated specially because the assumption above would lead to an "interpolation to zero" (the bucket density approaches infinity around zero, and with the postulated uniform usage of buckets, we would end up with an estimate of zero for all quantiles ending up in the zero bucket). We simply fall back to linear interpolation within the zero bucket. At the same time, this commit makes the call to stick with the assumption that the zero bucket only contains positive observations for native histograms without negative buckets (and vice versa). (This is an assumption relevant for interpolation. It is a mostly academic point, as the zero bucket is supposed to be very small anyway. However, in cases where it _is_ relevantly broad, the assumption helps a lot in practice.) This commit also updates and completes the documentation to match both details about interpolation. As a more high level note: The approach here attempts to strike a balance between a more simplistic approach without any assumption, and a more involved approach with more sophisticated assumptions. I will shortly describe both for reference: The "zero assumption" approach would be to not interpolate at all, but _always_ return the harmonic mean of the bucket boundaries of the bucket the quantile ends up in. This has the advantage of minimizing the maximum possible relative error of the quantile estimation. (Depending on the exact definition of the relative error of an estimation, there is also an argument to return the arithmetic mean of the bucket boundaries.) While limiting the maximum possible relative error is a good property, this approach would throw away the information if a quantile is closer to the upper or lower end of the population within a bucket. This can be valuable trending information in a dashboard. With any kind of interpolation, the maximum possible error of a quantile estimation increases to the full width of a bucket (i.e. it more than doubles for the harmonic mean approach, and precisely doubles for the arithmetic mean approach). However, in return the _expectation value_ of the error decreases. The increase of the theoretical maximum only has practical relevance for pathologic distributions. For example, if there are thousand observations within a bucket, they could _all_ be at the upper bound of the bucket. If the quantile calculation picks the 1st observation in the bucket as the relevant one, an interpolation will yield a value close to the lower bucket boundary, while the true quantile value is close to the upper boundary. The "fancy interpolation" approach would be one that analyses the _actual_ distribution of samples in the histogram. A lot of statistics could be applied based on the information we have available in the histogram. This would include the population of neighboring (or even all) buckets in the histogram. In general, the resolution of a native histogram should be quite high, and therefore, those "fancy" approaches would increase the computational cost quite a bit with very little practical benefits (i.e. just tiny corrections of the estimated quantile value). The results are also much harder to reason with. Signed-off-by: beorn7 <beorn@grafana.com>	2 months ago
Bryan Boreham	81b9407f15	Prepare release 2.55.0-rc.0 Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	2 months ago
Julius Volz	c36589a6dd	Merge pull request #14940 from roidelapluie/subsecondzoom UI: Disallow sub-second zoom as this cause inconsistenices in the X axis in uPlot	2 months ago
Julien	546f780006	UI: Disallow sub-second zoom as this cause inconsistenices in the X axis in uPlot Fixes #9135 Signed-off-by: Julien <roidelapluie@o11y.eu>	2 months ago
Ganesh Vernekar	5ccb069414	Backward compatibility with upcoming index v3 Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>	2 months ago
Julius Volz	5e68360dc8	Fix error flood by downgrading OTel dependencies (#14884 ) Fixes #14859, although we'll have to see about a long-term fix. Hopefully it'll be fixed upstream with a follow-up version. Signed-off-by: Julius Volz <julius.volz@gmail.com>	2 months ago
George Krajcsovits	0d22a91267	Merge pull request #14874 from krajorama/fix-panic-in-ooo-query2 BUGFIX: TSDB: panic in chunk querier	2 months ago
Bryan Boreham	e8c2d916ec	lint Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	2 months ago
Jan Fajerski	15cea39136	promql: put holt_winters behind experimental feature flag Signed-off-by: Jan Fajerski <jfajersk@redhat.com>	2 months ago
Bryan Boreham	648a668835	[PERF] Chunk encoding: combine timestamp writes 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>	2 months ago
Bryan Boreham	b9a9689aae	[PERF] Chunk encoding: simplify writeByte Rather than append a zero then set the value at that position, append the value. Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	2 months ago
Bryan Boreham	b65f1b6560	TSDB: Improve xor-chunk benchmarks 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>	2 months ago
Joshua Hesketh	b6107cc888	Make rate possible non-counter annotation consistent (#14910 ) * Make rate possible non-counter annotation consistent Previously a PossibleNonCounterInfo annotation would be left in cases where a range-vector selects 1 float data point, even if no more points are selected in order to calculate a rate. This change ensures an output float exists before emitting such an annotation. This fixes an inconsistency where a series with mixed data (ie, a float and a native histogram) would emit an annotation without any points. For example, ``` load 1m series{label="a"} 1 {{schema:1 sum:10 count:5 buckets:[1 2 3]}} eval instant at 1m rate(series[1m1s]) ``` Would have a PossibleNonCounterInfo annotation. Wheras ``` load 1m series{label="a"} {{schema:1 sum:10 count:5 buckets:[1 2 3]}} {{schema:1 sum:15 count:10 buckets:[1 2 3]}} eval instant at 1m rate(series[1m1s]) ``` Would not. --------- Signed-off-by: Joshua Hesketh <josh@nitrotech.org>	2 months ago
Augustin Husson	69619990f8	UI/PromQL: autocomplete topk like aggregation function parameters Signed-off-by: Augustin Husson <husson.augustin@gmail.com>	2 months ago
Bryan Boreham	bb47f78929	Merge pull request #14505 from marioferh/improve_performance_regex [CHANGE] regexp . to match \n and optimize performance	2 months ago
Callum Styan	c328d5fc88	fix rwv2 build write request benchmark, also change how the memory usage (#14925 ) is reported for these benchmarks to more accurately reflect what's actually allocated Signed-off-by: Callum Styan <callumstyan@gmail.com>	2 months ago
Julius Volz	b8d1336d42	Merge pull request #14912 from roidelapluie/notready mantine UI: Distinguish between Not Ready and Stopping	2 months ago
Julius Volz	6c5e2f8fb9	Merge pull request #12829 from arukiidou/chore/bump-webui build(deps): bump lru-cache from 7.18.3 to 11.0.1 in /web/ui	2 months ago
Antoine Pultier	d90d0976b5	fix(bstream/writeByte): ensure it appends only one byte (#14854 ) fix(bstream/writeByte): ensure it appends only one byte Signed-off-by: Antoine Pultier <antoine.pultier@sintef.no>	2 months ago
junya koyama	54fe9f3d04	build(deps): fix breaking chages. Signed-off-by: junya koyama <arukiidou@yahoo.co.jp>	2 months ago
junya koyama	8dae42828d	build(deps): bump lru-cache from 7.18.3 to 11.0.1 in /web/ui Signed-off-by: junya koyama <arukiidou@yahoo.co.jp>	2 months ago
Julien	ac5377873f	mantine UI: Distinguish between Not Ready and Stopping Signed-off-by: Julien <roidelapluie@o11y.eu>	2 months ago
Nihal	d0d57ff642	[DOC] Add username_file in basic auth http client config (#12749 ) Signed-off-by: Wasim Nihal <sswasim64@gmail.com>	2 months ago
machine424	d1b4312f0a	fix(wlog/watcher_test.go): make TestRun_AvoidNotifyWhenBehind more resilient Signed-off-by: machine424 <ayoubmrini424@gmail.com>	2 months ago
Mario Fernandez	5814920601	Fix: optimize .* regexp performance 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>	2 months ago
Julius Volz	00d23c9689	Merge pull request #14915 from prometheus/dependabot/npm_and_yarn/web/ui/typescript-5.6.2 Bump typescript from 5.5.4 to 5.6.2 in /web/ui	2 months ago
Bryan Boreham	d5f4fabd12	Merge pull request #14911 from bboreham/clarify-postings-benchmark TSDB: Simplify benchmark regexps	2 months ago
Carrie Edwards	14e3c05ce8	tsdb: Add support for ingestion of out-of-order native histogram samples (#14546 ) 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>	2 months ago
Harry John	919dc0cbc6	storage: Update LabelQuerier interface to return sorted label values (#14849 ) * Change LabelQuerier.LabelValues() to return sorted values --------- Signed-off-by: 🌲 Harry 🌊 John 🏔 <johrry@amazon.com>	2 months ago
Julius Volz	2c87817e40	Merge pull request #14914 from prometheus/julius/new-ui-improvements New UI: Better time formatting + tests, better styling	2 months ago
51n15t9r	b6015e7c73	Add support for running govulncheck (#12654 ) * Add support for running govulncheck --------- Signed-off-by: 51n15t9r <utkarsh.khare@gmail.com>	2 months ago
dependabot[bot]	2fa84df35d	Bump typescript from 5.5.4 to 5.6.2 in /web/ui Bumps [typescript](https://github.com/microsoft/TypeScript) from 5.5.4 to 5.6.2. - [Release notes](https://github.com/microsoft/TypeScript/releases) - [Changelog](https://github.com/microsoft/TypeScript/blob/main/azure-pipelines.release.yml) - [Commits](https://github.com/microsoft/TypeScript/compare/v5.5.4...v5.6.2) --- updated-dependencies: - dependency-name: typescript dependency-type: direct:development update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>	2 months ago
Julius Volz	a1908df922	Don't wrap action buttons below metric name in metrics explorer Signed-off-by: Julius Volz <julius.volz@gmail.com>	2 months ago
Julius Volz	091fc403cf	Fiddle with targets table styles to try and improve things a bit Signed-off-by: Julius Volz <julius.volz@gmail.com>	2 months ago
Julius Volz	57898c7929	Refactor and fix time formatting functions, add tests Signed-off-by: Julius Volz <julius.volz@gmail.com>	2 months ago
Julius Volz	6acd3dee53	Merge pull request #14913 from prometheus/explain-view-set-ops PromQL explain view: Support set operators	2 months ago
Bryan Boreham	a8133f3e87	TSDB: Simplify benchmark regexps 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>	2 months ago
Julius Volz	9b0dc68d0d	PromQL explain view: Support set operators Signed-off-by: Julius Volz <julius.volz@gmail.com>	2 months ago
Augustin Husson	6febfbb3be	put back feature flag 'delayed-compaction' and 'old-ui' (#14909 ) Signed-off-by: Augustin Husson <husson.augustin@gmail.com>	2 months ago
Julien	f007659f03	Merge pull request #14531 from prometheus/dependabot/go_modules/github.com/go-zookeeper/zk-1.0.4 build(deps): bump github.com/go-zookeeper/zk from 1.0.3 to 1.0.4	2 months ago
Julius Volz	d67ba3ed30	Merge pull request #14908 from roidelapluie/fix14889 Explain, vector-to-vector: Do not compute results for set operators	2 months ago
Julien	ac01dc9035	Explain, vector-to-vector: Do not compute results for set operators Set operators are not displayed: `31ce9dacf4/web/ui/mantine-ui/src/pages/query/ExplainViews/BinaryExpr/VectorVector.tsx (L364)` Therefore, do not compute results for them. Fixes #14889 Signed-off-by: Julien <roidelapluie@o11y.eu>	2 months ago
Julien	31ce9dacf4	Merge pull request #14901 from roidelapluie/prebuiltui makefile: Add support for skipping UI build when prebuilt assets are provided	2 months ago
Julius Volz	62bd893b80	Merge pull request #14907 from prometheus/julius/new-ui-improvements UI improvements: Factor out common styles, fix tree node line rendering, always show full badge contents (no ellipsis)	2 months ago
Julius Volz	50af7d589b	Fix tree line drawing by using a callback ref In a non-dev build (no initial double-renders), the tree lines would not be rendered correctly from the parent of a binop to its first child, because the first child would be rendered before the parent, and the parent's ref hadn't been set yet at that time. Switched from a normal ref to a callback-based ref with explicit React state update to make sure that the child gets to know about the parent's (later) rendered div element. Signed-off-by: Julius Volz <julius.volz@gmail.com>	2 months ago
Arthur Silva Sens	e8fa1312a7	Merge pull request #14903 from jan--f/drop-agent-ff-docs docs/feature_flags.md: drop `agent` feature flag	3 months ago
Jan Fajerski	722f33225c	docs/feature_flags.md: drop `agent` feature flag Signed-off-by: Jan Fajerski <jfajersk@redhat.com>	3 months ago
Julius Volz	0180cf31aa	Factor out common icon and card styles Signed-off-by: Julius Volz <julius.volz@gmail.com>	3 months ago

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14347 Commits (716fd5b11f6f6f414bbc602b9724b028140006f8) All Branches Search

14347 Commits (716fd5b11f6f6f414bbc602b9724b028140006f8)

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