prometheus

Commit Graph

Author	SHA1	Message	Date
Jesus Vazquez	77d3b3aff3	OTLP: Remove experimental word form OTLP receiver (#14894 ) The OTLP receiver can now considered stable. We've had it for longer than a year in main and has received constant improvements. Signed-off-by: Jesus Vazquez <jesusvzpg@gmail.com>	2 months ago
Julien	f9bbad1148	Limit the number of SSE Subscribers to 16 by default Signed-off-by: Julien <roidelapluie@o11y.eu>	2 months ago
Björn Rabenstein	f74722841b	Merge pull request #14160 from alex-kattathra-johnson/issue-13959 Remove no-default-scrape-port featureFlag	2 months ago
Craig Ringer	15b68e989c	Refer to staleness in instant vector documentation The instant vector documentation does not explain which metric samples are selected - in particular, it makes no reference to staleness. It's confusing when reading the docs to understand how exactly Prometheus selects the metrics to report: the most recent sample older than the search timestamp specified in the API request, so long as that metric is not "stale". Signed-off-by: Craig Ringer <craig.ringer@enterprisedb.com>	2 months ago
Alex Johnson	be0f10054e	Remove no-default-scrape-port featureFlag Signed-off-by: Alex Johnson <alex.kattathra.johnson@gmail.com>	2 months ago
beorn7	a9243d4d2c	docs: Improve, clarify, and fix documentation on scrape limits In detail: - Clarify that label name and value length limits are in byte, not in UTF-8 data points. - More consistent formatting to keep 80 characters line limet. - Clarify various misleading specifications around "per sample", "per scrape", "per scrape config", "per job"... - Fix grammar. Signed-off-by: beorn7 <beorn@grafana.com>	2 months ago
Björn Rabenstein	df9916ef66	Merge pull request #14677 from prometheus/beorn7/histogram promql(native histograms): Introduce exponential interpolation	2 months ago
Jan Fajerski	96e5a94d29	promql: rename holt_winters to double_exponential_smoothing Signed-off-by: Jan Fajerski <jfajersk@redhat.com>	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
Jan Fajerski	15cea39136	promql: put holt_winters behind experimental feature flag Signed-off-by: Jan Fajerski <jfajersk@redhat.com>	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
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
Jan Fajerski	722f33225c	docs/feature_flags.md: drop `agent` feature flag Signed-off-by: Jan Fajerski <jfajersk@redhat.com>	2 months ago
Nathan Baulch	50cd453c8f	chore: Fix typos (#14868 ) * Fix typos --------- Signed-off-by: Nathan Baulch <nathan.baulch@gmail.com>	3 months ago
Jan Fajerski	fa318711f4	Merge branch 'main' into 3.0-main-sync-24-09-09 Conflicts: cmd/prometheus/main.go docs/command-line/prometheus.md docs/feature_flags.md web/ui/build_ui.sh web/web.go Resolved by dropping the UTF-8 feature flag and adding the `auto-reload-config` feature flag. For the new web ui pick all changes from `main`.	3 months ago
Julius Volz	f1e0939f2f	Document /api/v1/parse_expr endpoint Signed-off-by: Julius Volz <julius.volz@gmail.com>	3 months ago
Julius Volz	ad21ef3d76	Merge branch 'main' into mantine-ui Signed-off-by: Julius Volz <julius.volz@gmail.com>	3 months ago
Björn Rabenstein	694d98032b	Merge pull request #14705 from prometheus/owilliams/default-on utf8: enable utf-8 support by default	3 months ago
Bartlomiej Plotka	edc83ed164	Update storage.md with the latest around Remote Write 2.0 (#14848 ) * Update storage.md with the latest around Remote Write 2.0 Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> * Update storage.md Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com> --------- Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>	3 months ago
Owen Williams	88bb05c3e8	utf8: enable utf-8 support by default This change causes Prometheus to allow all UTF-8 characters in metric and label names. This means that names that were previously invalid and would have been previously rejected will be allowed through. Signed-off-by: Owen Williams <owen.williams@grafana.com>	3 months ago
Julien	404e577034	Merge pull request #14734 from roidelapluie/scrape_failure_logger Add support for logging scrape failures to a specified file	3 months ago
machine424	cc40b65ab4	fix(promtool): use the final database path for --sandbox-dir-root instead of the default value as it may be overridden add a regression test for that. Signed-off-by: machine424 <ayoubmrini424@gmail.com>	3 months ago
Julien	be3597c272	Update autoreload documentation: recommend writing files atomically (#14836 ) Signed-off-by: Julien <roidelapluie@o11y.eu>	3 months ago
machine424	d18fa62ae9	chore(discovery): enable new-service-discovery-manager by default and drop legacymanager package Signed-off-by: machine424 <ayoubmrini424@gmail.com>	3 months ago
Julien	ce0f09b125	Scrape: Add scrape_failure_log_file to log Scrape Failures Signed-off-by: Julien <roidelapluie@o11y.eu>	3 months ago
Julien	50f5327f83	Merge pull request #14769 from roidelapluie/autoreload Support reload config automatically	3 months ago
Julius Volz	c73c3e24d7	Default to serving new (Prometheus 3.0) UI Signed-off-by: Julius Volz <julius.volz@gmail.com>	3 months ago
Julius Volz	490eef6509	Merge branch 'main' into mantine-ui Signed-off-by: Julius Volz <julius.volz@gmail.com>	3 months ago
Jan Fajerski	2f6fafd122	Merge branch 'release-3.0' into 3.0-main-sync-24-08-30 Conflicts: docs/command-line/prometheus.md regenerate via make cli-documentation	3 months ago
Arthur Silva Sens	ca1f30bb6e	Promote Agent mode to it's own cmdline flag Signed-off-by: Arthur Silva Sens <arthursens2005@gmail.com>	3 months ago
Jan Fajerski	befcfadf78	Fix merge conflicts Fix call to newTestEngine(t) in promql/engine_test.go:3214. `agent` feature-flag it's own cmdline flag now. Remove `scrape.name-escaping-scheme` argument. Signed-off-by: Jan Fajerski <jfajersk@redhat.com>	3 months ago
Jan Fajerski	fe4289b502	Merge branch 'main' into HEAD	3 months ago
Julien	deabb30b20	Document custom HTTP headers and add tests Signed-off-by: Julien <roidelapluie@o11y.eu>	3 months ago
Julien	93f27409cd	Merge pull request #14660 from roidelapluie/customheaders Add documentation for custom headers.	3 months ago
Jan Fajerski	00315ce15e	Merge branch 'main' into 3.0-main-sync-24-08-30 using -Xours Signed-off-by: Jan Fajerski <jfajersk@redhat.com>	3 months ago
Julien	1cd2d0498b	Support reload config automatically Signed-off-by: Julien <roidelapluie@o11y.eu>	3 months ago
Arthur Silva Sens	60b9e9fc16	Promote Agent mode to it's own cmdline flag Signed-off-by: Arthur Silva Sens <arthursens2005@gmail.com>	3 months ago
Kevin Rawal	b0677263c3	Update basics.md fix broken URL for feature flags native histograms in querying prometheus documentation Signed-off-by: Kevin Rawal <84058124+kevinrawal@users.noreply.github.com>	3 months ago
Jorge Creixell	e9e3d64b7c	PromQL engine: Delay deletion of __name__ label to the end of the query evaluation (#14477 ) PromQL engine: Delay deletion of __name__ label to the end of the query evaluation - This change allows optionally preserving the `__name__` label via the `label_replace` and `label_join` functions, and helps prevent the dreaded "vector cannot contain metrics with the same labelset" error. - The implementation extends the `Series` and `Sample` structs with a boolean flag indicating whether the `__name__` label should be deleted at the end of the query evaluation. - The `label_replace` and `label_join` functions can still access the value of the `__name__` label, even if it has been previously marked for deletion. If `__name__` is used as target label, it won't be dropped at the end of the query evaluation. - Fixes https://github.com/prometheus/prometheus/issues/11397 - See https://github.com/jcreixell/prometheus/pull/2 for previous discussion, including the decision to create this PR and benchmark it before considering other alternatives (like refactoring `labels.Labels`). - See https://github.com/jcreixell/prometheus/pull/1 for an alternative implementation using a special label instead of boolean flags. - Note: a feature flag `promql-delayed-name-removal` has been added as it changes the behavior of some "weird" queries (see https://github.com/prometheus/prometheus/issues/11397#issuecomment-1451998792) Example (this always fails, as `__name__` is being dropped by `count_over_time`): ``` count_over_time({__name__!=""}[1m]) => Error executing query: vector cannot contain metrics with the same labelset ``` Before: ``` label_replace(count_over_time({__name__!=""}[1m]), "__name__", "count_$1", "__name__", "(.+)") => Error executing query: vector cannot contain metrics with the same labelset ``` After: ``` label_replace(count_over_time({__name__!=""}[1m]), "__name__", "count_$1", "__name__", "(.+)") => count_go_gc_cycles_automatic_gc_cycles_total{instance="localhost:9090", job="prometheus"} 1 count_go_gc_cycles_forced_gc_cycles_total{instance="localhost:9090", job="prometheus"} 1 ... ``` Signed-off-by: Jorge Creixell <jcreixell@gmail.com> --------- Signed-off-by: Jorge Creixell <jcreixell@gmail.com> Signed-off-by: Björn Rabenstein <github@rabenste.in>	3 months ago
Julien Pivotto	ed2e18d7de	Add documentation for custom headers. Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu> Signed-off-by: Julien <roidelapluie@o11y.eu>	3 months ago
Suraj Patil	7757794bb3	[ENHANCEMENT] Promtool: Adding labels to time series while creating tsdb blocks (#14403 ) * feat: #14402 - Adding labels to time series while creating tsdb blocks Signed-off-by: Suraj Patil <patilsuraj767@gmail.com>	3 months ago
Bryan Boreham	4202be5e79	Merge branch 'release-2.54' into merge-2.54.1-into-main	3 months ago
Julien	349068ad3e	Merge pull request #14665 from roidelapluie/multiple-listening-addresses Add support for multiple listening addresses	3 months ago
Björn Rabenstein	0a00d21cff	Merge pull request #14673 from machine424/docdoccc docs(configuration.md): clarify the explanations about some temp labe…	3 months ago
Björn Rabenstein	7fad1ec8ee	Merge pull request #14655 from suntala/suntala/sort-by-label-enhancement promql: Fall back to full label sets when sorting by label	3 months ago
Jan Fajerski	5138922b0d	Merge branch 'main' into 3.0-main-sync-24-08-21	3 months ago
Björn Rabenstein	60366a8a05	Merge pull request #14526 from pawarpranav83/release-3.0 remove deprecated and replaced remote-write-receiver flag from enable-feature	3 months ago
machine424	88cac6fb49	docs(configuration.md): clarify the explanations about some temp labels and format for better visibility. Signed-off-by: machine424 <ayoubmrini424@gmail.com>	3 months ago
Julien Pivotto	9b5e7623f4	Add support for multiple listening addresses Fixes #9105 Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu> Signed-off-by: Julien <roidelapluie@o11y.eu>	3 months ago
ouyang1204@gmail.com	89dee48cc8	fix the issue of failing to match the first network when the container is reconnected to a new network Signed-off-by: ouyang1204@gmail.com <ouyang1204@gmail.com>	3 months ago

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850 Commits (c5c2566b8afcb77ec559d64afe10d2f7daa18236)