prometheus

Commit Graph

Author	SHA1	Message	Date
Julien Pivotto	ac0919d48c	Update docs/querying/functions.md Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu>	1 year ago
lasea75	f15f0ac16a	Update functions.md Signed-off-by: lasea75 <lasea75@gmail.com>	1 year ago
zenador	54aaa2bd7e	Add `histogram_stdvar` and `histogram_stddev` functions (#12614 ) * Add new function: histogram_stdvar and histogram_stddev Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>	1 year ago
Salar Nosrati-Ershad	fd96996b75	docs: fix: correct reference to native histograms feature flag Signed-off-by: Salar Nosrati-Ershad <snosratiershad@gmail.com>	1 year ago
Bryan Boreham	1e3fef6ab0	scraping: limit detail on dropped targets, to save memory (#12647 ) It's possible (quite common on Kubernetes) to have a service discovery return thousands of targets then drop most of them in relabel rules. The main place this data is used is to display in the web UI, where you don't want thousands of lines of display. The new limit is `keep_dropped_targets`, which defaults to 0 for backwards-compatibility. Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	1 year ago
Julien Pivotto	4a56a6bf59	Merge pull request #12643 from gouthamve/add-otlp-docs Add initial OTLP ingestion docs	1 year ago
Julien Pivotto	4c81a8f681	Merge pull request #11578 from chancefeick/fix/querying-documentation Fix Querying Documentation Links	1 year ago
Goutham	acb1f8a097	Fix API endpoint Signed-off-by: Goutham <gouthamve@gmail.com>	1 year ago
Goutham Veeramachaneni	9df36c3e5e	Apply suggestions from code review Co-authored-by: Julien Pivotto <roidelapluie@o11y.eu> Signed-off-by: Goutham Veeramachaneni <gouthamve+github@gmail.com>	1 year ago
Goutham	6bb5720141	Add initial OTLP ingestion docs We still need a guide that we can link users to in https://github.com/prometheus/docs/tree/main/content/docs/guides This guide should show sending metrics from application directly via the OTel SDKs and also sending through the Collector. Signed-off-by: Goutham <gouthamve@gmail.com>	1 year ago
Julien Pivotto	bb90379163	Merge pull request #11404 from gberche-orange/patch-2 docs (label_replace): illustrate use of named capturing group	1 year ago
Guillaume Berche	f5fb37dbab	Update functions.md Add missing linefeed as requested by https://github.com/prometheus/prometheus/pull/11404#discussion_r1266625301 Signed-off-by: Guillaume Berche <guillaume.berche@orange.com>	1 year ago
Guillaume Berche	60b380da70	Refine functions.md as suggested during review See https://github.com/prometheus/prometheus/pull/11404#issuecomment-1631165746 Signed-off-by: Guillaume Berche <guillaume.berche@orange.com>	1 year ago
Ziqi Zhao	42d9169ba1	enhance histogram_quantile to get min/max value Signed-off-by: Ziqi Zhao <zhaoziqi9146@gmail.com>	1 year ago
Carrie Edwards	f93ac97867	Update querying function docs Signed-off-by: Carrie Edwards <edwrdscarrie@gmail.com>	1 year ago
Julien Pivotto	fc2e4cd3b9	docs: Fix link to feature flags. Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu>	1 year ago
Arthur Silva Sens	1ea477f4bc	Add feature flag to squash metadata from /api/v1/metadata (#12391 ) Signed-off-by: ArthurSens <arthursens2005@gmail.com>	1 year ago
sinkingpoint	f7abe27fef	Remove trailing commas from Exemplar API docs The trailing commas here make this example invalid JSON. Here we remove them. Signed-off-by: sinkingpoint <colin@quirl.co.nz>	1 year ago
marcoderama	a308ea773d	Update functions.md Fix small typo Signed-off-by: marcoderama <marcoderamagit@gmail.com>	2 years ago
Baskar Shanmugam	905a0bd63a	Added 'limit' query parameter support to /api/v1/status/tsdb endpoint (#12336 ) * Added 'topN' query parameter support to /api/v1/status/tsdb endpoint Signed-off-by: Baskar Shanmugam <baskar.shanmugam.career@gmail.com> * Updated query parameter for tsdb status to 'limit' Signed-off-by: Baskar Shanmugam <baskar.shanmugam.career@gmail.com> * Corrected Stats() parameter name from topN to limit Signed-off-by: Baskar Shanmugam <baskar.shanmugam.career@gmail.com> * Fixed p.Stats CI failure Signed-off-by: Baskar Shanmugam <baskar.shanmugam.career@gmail.com> --------- Signed-off-by: Baskar Shanmugam <baskar.shanmugam.career@gmail.com>	2 years ago
zenador	191bf9055b	Handle more arithmetic operators for native histograms (#12262 ) Handle more arithmetic operators and aggregators for native histograms This includes operators for multiplication (formerly known as scaling), division, and subtraction. Plus aggregations for average and the avg_over_time function. Stdvar and stddev will (for now) ignore histograms properly (rather than counting them but adding a 0 for them). Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>	2 years ago
gotjosh	74e6668e87	update docs Signed-off-by: gotjosh <josue.abreu@gmail.com>	2 years ago
gotjosh	cf230bcd18	more wordsmithing Signed-off-by: gotjosh <josue.abreu@gmail.com>	2 years ago
gotjosh	28909a4636	more worthsmithing Signed-off-by: gotjosh <josue.abreu@gmail.com>	2 years ago
gotjosh	e2a2790b2c	add more docs Signed-off-by: gotjosh <josue.abreu@gmail.com>	2 years ago
gotjosh	f3394bf7a1	Rules API: Allow filtering by rule name Introduces support for a new query parameter in the `/rules` API endpoint that allows filtering by rule names. If all the rules of a group are filtered, we skip the group entirely. Signed-off-by: gotjosh <josue.abreu@gmail.com>	2 years ago
beorn7	c0879d64cf	promql: Separate `Point` into `FPoint` and `HPoint` In other words: Instead of having a “polymorphous” `Point` that can either contain a float value or a histogram value, use an `FPoint` for floats and an `HPoint` for histograms. This seemingly small change has a _lot_ of repercussions throughout the codebase. The idea here is to avoid the increase in size of `Point` arrays that happened after native histograms had been added. The higher-level data structures (`Sample`, `Series`, etc.) are still “polymorphous”. The same idea could be applied to them, but at each step the trade-offs needed to be evaluated. The idea with this change is to do the minimum necessary to get back to pre-histogram performance for functions that do not touch histograms. Here are comparisons for the `changes` function. The test data doesn't include histograms yet. Ideally, there would be no change in the benchmark result at all. First runtime v2.39 compared to directly prior to this commit: ``` name old time/op new time/op delta RangeQuery/expr=changes(a_one[1d]),steps=1-16 391µs ± 2% 542µs ± 1% +38.58% (p=0.000 n=9+8) RangeQuery/expr=changes(a_one[1d]),steps=10-16 452µs ± 2% 617µs ± 2% +36.48% (p=0.000 n=10+10) RangeQuery/expr=changes(a_one[1d]),steps=100-16 1.12ms ± 1% 1.36ms ± 2% +21.58% (p=0.000 n=8+10) RangeQuery/expr=changes(a_one[1d]),steps=1000-16 7.83ms ± 1% 8.94ms ± 1% +14.21% (p=0.000 n=10+10) RangeQuery/expr=changes(a_ten[1d]),steps=1-16 2.98ms ± 0% 3.30ms ± 1% +10.67% (p=0.000 n=9+10) RangeQuery/expr=changes(a_ten[1d]),steps=10-16 3.66ms ± 1% 4.10ms ± 1% +11.82% (p=0.000 n=10+10) RangeQuery/expr=changes(a_ten[1d]),steps=100-16 10.5ms ± 0% 11.8ms ± 1% +12.50% (p=0.000 n=8+10) RangeQuery/expr=changes(a_ten[1d]),steps=1000-16 77.6ms ± 1% 87.4ms ± 1% +12.63% (p=0.000 n=9+9) RangeQuery/expr=changes(a_hundred[1d]),steps=1-16 30.4ms ± 2% 32.8ms ± 1% +8.01% (p=0.000 n=10+10) RangeQuery/expr=changes(a_hundred[1d]),steps=10-16 37.1ms ± 2% 40.6ms ± 2% +9.64% (p=0.000 n=10+10) RangeQuery/expr=changes(a_hundred[1d]),steps=100-16 105ms ± 1% 117ms ± 1% +11.69% (p=0.000 n=10+10) RangeQuery/expr=changes(a_hundred[1d]),steps=1000-16 783ms ± 3% 876ms ± 1% +11.83% (p=0.000 n=9+10) ``` And then runtime v2.39 compared to after this commit: ``` name old time/op new time/op delta RangeQuery/expr=changes(a_one[1d]),steps=1-16 391µs ± 2% 547µs ± 1% +39.84% (p=0.000 n=9+8) RangeQuery/expr=changes(a_one[1d]),steps=10-16 452µs ± 2% 616µs ± 2% +36.15% (p=0.000 n=10+10) RangeQuery/expr=changes(a_one[1d]),steps=100-16 1.12ms ± 1% 1.26ms ± 1% +12.20% (p=0.000 n=8+10) RangeQuery/expr=changes(a_one[1d]),steps=1000-16 7.83ms ± 1% 7.95ms ± 1% +1.59% (p=0.000 n=10+8) RangeQuery/expr=changes(a_ten[1d]),steps=1-16 2.98ms ± 0% 3.38ms ± 2% +13.49% (p=0.000 n=9+10) RangeQuery/expr=changes(a_ten[1d]),steps=10-16 3.66ms ± 1% 4.02ms ± 1% +9.80% (p=0.000 n=10+9) RangeQuery/expr=changes(a_ten[1d]),steps=100-16 10.5ms ± 0% 10.8ms ± 1% +3.08% (p=0.000 n=8+10) RangeQuery/expr=changes(a_ten[1d]),steps=1000-16 77.6ms ± 1% 78.1ms ± 1% +0.58% (p=0.035 n=9+10) RangeQuery/expr=changes(a_hundred[1d]),steps=1-16 30.4ms ± 2% 33.5ms ± 4% +10.18% (p=0.000 n=10+10) RangeQuery/expr=changes(a_hundred[1d]),steps=10-16 37.1ms ± 2% 40.0ms ± 1% +7.98% (p=0.000 n=10+10) RangeQuery/expr=changes(a_hundred[1d]),steps=100-16 105ms ± 1% 107ms ± 1% +1.92% (p=0.000 n=10+10) RangeQuery/expr=changes(a_hundred[1d]),steps=1000-16 783ms ± 3% 775ms ± 1% -1.02% (p=0.019 n=9+9) ``` In summary, the runtime doesn't really improve with this change for queries with just a few steps. For queries with many steps, this commit essentially reinstates the old performance. This is good because the many-step queries are the one that matter most (longest absolute runtime). In terms of allocations, though, this commit doesn't make a dent at all (numbers not shown). The reason is that most of the allocations happen in the sampleRingIterator (in the storage package), which has to be addressed in a separate commit. Signed-off-by: beorn7 <beorn@grafana.com>	2 years ago
beorn7	71c57a1292	docs: Clarify that range selectors use a closed interval Signed-off-by: beorn7 <beorn@grafana.com>	2 years ago
Charles Korn	e023d896f2	Correct statement in docs about query results returning either floats or histograms but not both. (#11880 ) * Correct statement in docs about query results returning either floats or histograms but not both. * Move documentation for range and instant vectors under their corresponding headings. Signed-off-by: Charles Korn <charles.korn@grafana.com>	2 years ago
Łukasz Mierzwa	e1b7082008	Show individual scrape pools on /targets page (#11142 ) * Add API endpoints for getting scrape pool names This adds api/v1/scrape_pools endpoint that returns the list of names of all the scrape pools configured. Having it allows to find out what scrape pools are defined without having to list and parse all targets. The second change is adding scrapePool query parameter support in api/v1/targets endpoint, that allows to filter returned targets by only finding ones for passed scrape pool name. Both changes allow to query for a specific scrape pool data, rather than getting all the targets for all possible scrape pools. The problem with api/v1/targets endpoint is that it returns huge amount of data if you configure a lot of scrape pools. Signed-off-by: Łukasz Mierzwa <l.mierzwa@gmail.com> * Add a scrape pool selector on /targets page Current targets page lists all possible targets. This works great if you only have a few scrape pools configured, but for systems with a lot of scrape pools and targets this slow things down a lot. Not only does the /targets page load very slowly in such case (waiting for huge API response) but it also take a long time to render, due to huge number of elements. This change adds a dropdown selector so it's possible to select only intersting scrape pool to view. There's also scrapePool query param that will open selected pool automatically. Signed-off-by: Łukasz Mierzwa <l.mierzwa@gmail.com> Signed-off-by: Łukasz Mierzwa <l.mierzwa@gmail.com>	2 years ago
Pablo Ley	fb30ffda75	Fixed typo in the Remote Read API docs Signed-off-by: Pablo Ley <pablo_ley@hotmail.com> Signed-off-by: Pablo Ley <pablo_ley@hotmail.com>	2 years ago
Oleg Zaytsev	6197ed63d8	Remove comments from the remote read docs I think these are not intended to be here. Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>	2 years ago
Chance Feick	2cfd8da628	Update docs/querying/basics.md Co-authored-by: Julien Pivotto <roidelapluie@o11y.eu> Signed-off-by: Chance Feick <6326742+chancefeick@users.noreply.github.com>	2 years ago
Chance Feick	52270d6216	Fix relative link to use .md file extension Signed-off-by: Chance Feick <cfeick@gitlab.com>	2 years ago
Björn Rabenstein	41035469d3	Document the native histogram feature flag and PromQL (#11446 ) Signed-off-by: beorn7 <beorn@grafana.com> Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> Co-authored-by: Ganesh Vernekar <ganeshvern@gmail.com>	2 years ago
Björn Rabenstein	50529b4804	doc: Document the native histogram JSON format (#11454 ) As used in the HTTP query API. Signed-off-by: beorn7 <beorn@grafana.com>	2 years ago
Guillaume Berche	e6b84ac1e0	functions.md doc refinement Removed named capture group example in label_replace Signed-off-by: Guillaume Berche <guillaume.berche@orange.com>	2 years ago
Jesus Vazquez	e934d0f011	Merge 'main' into sparsehistogram Signed-off-by: Jesus Vazquez <jesus.vazquez@grafana.com>	2 years ago
Guillaume Berche	ea40c15fe9	Refine documentation for label_replace Illustrate use of named capturing group syntax available from https://github.com/google/re2/wiki/Syntax and their usage in the replacement field Signed-off-by: Guillaume Berche <guillaume.berche@orange.com>	2 years ago
Harold Dost	58b7c890a1	Merge pull request #7266 from hdost/feat/7192-add-documentation-for-api documentation: Add Reference to the remote read API	2 years ago
relandrew	dfc62920c2	docs: fix typo (#11156 ) Signed-off-by: Andrew <106606303+relandrew@users.noreply.github.com> Signed-off-by: Andrew <106606303+relandrew@users.noreply.github.com>	2 years ago
Björn Rabenstein	bcd548c88b	Merge pull request #10076 from mtfoley/docs-deriv docs: update function docs on deriv	2 years ago
beorn7	c9fd3c235d	Merge branch 'main' into sparsehistogram	2 years ago
Julius Volz	b57deb6eb0	Add /api/v1/format_query API endpoint for formatting queries (#11036 ) * Add /api/v1/format_query API endpoint for formatting queries This uses the formatting functionality introduced in https://github.com/prometheus/prometheus/pull/10544. I've chosen "query" instead of "expr" in both the endpoint and parameter names to stay consistent with the existing API endpoints. Otherwise, I would have preferred to use the term "expr". Signed-off-by: Julius Volz <julius.volz@gmail.com> * Add docs for /api/v1/format_query endpoint Signed-off-by: Julius Volz <julius.volz@gmail.com> * Add note that formatting expressions removes comments Signed-off-by: Julius Volz <julius.volz@gmail.com>	2 years ago
Julien Pivotto	cf0fdd557e	docs: Change relabelling -> relabeling (#11006 ) Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu>	2 years ago
beorn7	28f028e938	Merge branch 'main' into sparsehistogram	2 years ago
Harold Dost	193e68b9c9	documentation: Add Reference to the remote read API - For now this is relatively simplistic, but at least acknowledges some of the basics, and points out some parts that might not be obvious at first. Relates to #7192 Signed-off-by: Harold Dost <h.dost@criteo.com>	2 years ago
Richard Hartmann	7bb6e7dadd	Merge pull request #10707 from hdost/docs/2106-vector-matching docs: Add subsections for vector matching	2 years ago
beorn7	9eafed0f79	promql: Add `histogram_count` and `histogram_sum` This follow a simple function-based approach to access the count and sum fields of a native Histogram. It might be more elegant to implement “accessors” via the dot operator, as considered in the brainstorming doc [1]. However, that would require the introduction of a whole new concept in PromQL. For the PoC, we should be fine with the function-based approch. Even the obvious inefficiencies (rate'ing a whole histogram twice when we only want to rate each the count and the sum once) could be optimized behind the scenes. Note that the function-based approach elegantly solves the problem of detecting counter resets in the sum of observations in the case of negative observations. (Since the whole native Histogram is rate'd, the counter reset is detected for the Histogram as a whole.) We will decide later if an “accessor” approach is really needed. It would change the example expression for average duration in functions.md from histogram_sum(rate(http_request_duration_seconds[10m])) / histogram_count(rate(http_request_duration_seconds[10m])) to rate(http_request_duration_seconds.sum[10m]) / rate(http_request_duration_seconds.count[10m]) [1]: https://docs.google.com/document/d/1ch6ru8GKg03N02jRjYriurt-CZqUVY09evPg6yKTA1s/edit Signed-off-by: beorn7 <beorn@grafana.com>	2 years ago
beorn7	a3a8f58bb3	promql: Add histogram_fraction function Signed-off-by: beorn7 <beorn@grafana.com>	2 years ago

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175 Commits (16af86734febe9212a81bb54ea903493d557a327)