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233 commits

Author SHA1 Message Date
Jan Fajerski 38fd48e6b5 v2.55.0
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Merge tag 'v2.55.0' into release-3.0.0-rc.0

v2.55.0
2024-10-25 14:16:22 +02:00
Yijie Qin d2802c6fac
api: Add rule group pagination to list rules api (#14017)
* Add paginated feature to list rules api

Signed-off-by: Yijie Qin <qinyijie@amazon.com>

* Refactor to simplify code:

* Reduce number of variables
* Reduce type convesion

Signed-off-by: Raphael Silva <rapphil@gmail.com>

* Simplify paginated implementation

* Remove maxAlerts parameter.
* Reuse existing API responses by using omitempty in some fields

Signed-off-by: Raphael Silva <rapphil@gmail.com>

* Simplify pagination implementation

* Eliminate the need to sort the rule groups.

Signed-off-by: Raphael Silva <rapphil@gmail.com>

* Fix linting error

Signed-off-by: Raphael Silva <rapphil@gmail.com>

* Add more unit tests

Signed-off-by: Raphael Silva <rapphil@gmail.com>

* Update pagination parameters to be consistent with existing parameters

Signed-off-by: Raphael Silva <rapphil@gmail.com>

* Rename max_rule_groups to max_groups

Signed-off-by: Raphael Silva <rapphil@gmail.com>

* Refactor to simplify code

Signed-off-by: Raphael Silva <rapphil@gmail.com>

* Refactor to simplify the calculation of next token

Signed-off-by: Raphael Silva <rapphil@gmail.com>

* Handle corner case in pagination request

Signed-off-by: Raphael Silva <rapphil@gmail.com>

* Handle corner cases for pagination of list rules

Signed-off-by: Raphael Silva <rapphil@gmail.com>

* Update documentation for list rules parameters

Signed-off-by: Raphael Silva <rapphil@gmail.com>

* Refactor comments

Signed-off-by: Raphael Silva <rapphil@gmail.com>

* Simplify pagination implementation

* Eliminate need for extra structs to store pagination parameters

Signed-off-by: Raphael Silva <rapphil@gmail.com>

* Update docs/querying/api.md

Co-authored-by: Julius Volz <julius.volz@gmail.com>
Signed-off-by: Raphael Philipe Mendes da Silva <rapphil@gmail.com>

* Update web/api/v1/api.go

Co-authored-by: Bartlomiej Plotka <bwplotka@gmail.com>
Signed-off-by: Raphael Philipe Mendes da Silva <rapphil@gmail.com>

* Update comment describing the need for next token

Signed-off-by: Raphael Silva <rapphil@gmail.com>

---------

Signed-off-by: Yijie Qin <qinyijie@amazon.com>
Signed-off-by: Raphael Silva <rapphil@gmail.com>
Signed-off-by: Raphael Philipe Mendes da Silva <rapphil@gmail.com>
Co-authored-by: Raphael Silva <rapphil@gmail.com>
Co-authored-by: Julius Volz <julius.volz@gmail.com>
Co-authored-by: Bartlomiej Plotka <bwplotka@gmail.com>
2024-10-22 00:04:40 +01:00
Arve Knudsen de16f5e387
[FEATURE] PromQL: Add experimental info function MVP (#14495)
The `info` function is an experiment to improve UX
around including labels from info metrics.
`info` has to be enabled via the feature flag `--enable-feature=promql-experimental-functions`.

This MVP of info simplifies the implementation by assuming:
* Only support for the target_info metric
* That target_info's identifying labels are job and instance

Also:
* Encode info samples' original timestamp as sample value
* Deduce info series select hints from top-most VectorSelector

---------

Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>
Co-authored-by: Ying WANG <ying.wang@grafana.com>
Co-authored-by: Augustin Husson <augustin.husson@amadeus.com>
Co-authored-by: Bartlomiej Plotka <bwplotka@gmail.com>
Co-authored-by: Björn Rabenstein <github@rabenste.in>
Co-authored-by: Bryan Boreham <bjboreham@gmail.com>
2024-10-16 13:52:11 +01:00
Björn Rabenstein 5e987e7c7d
Merge pull request #15092 from jan--f/clarify-storage-contract
storage: require selectors to always return matching results
2024-10-09 13:07:59 +02:00
Julius Volz 90f7832447
Merge pull request #15084 from hvnsweeting/patch-1
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docs: Querying basics: remove what can be graphed
2024-10-08 14:59:07 +02:00
Viet Hung Nguyen f0a9f62ce8 [DOCS] Querying basics: what can be graphed
Put a scalar to query, it can be graphed.

So the doc says "an expression that returns an instant vector is the only type which can be graphed." is not correct?

And also, a query_range, which used for graph, always return a range vector <https://promlabs.com/blog/2020/06/18/the-anatomy-of-a-promql-query/#range-queries> , so it's confusing to read the above statement.

Signed-off-by: Viet Hung Nguyen <hvn@familug.org>
2024-10-08 21:16:26 +09:00
Björn Rabenstein 576000a457
Merge pull request #15111 from prometheus/beorn7/doc
docs: Declare "float literals are time durations" as stable
2024-10-08 12:49:40 +02:00
beorn7 08d4b034da docs: Declare "float literals are time durations" as stable
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This unifies the documentation of float literals and time durations
and updates all references to the old definitions.

Signed-off-by: beorn7 <beorn@grafana.com>
2024-10-07 14:22:49 +02:00
Julien db730fcade Document the notifications API
Signed-off-by: Julien <roidelapluie@o11y.eu>
2024-10-07 14:18:54 +02:00
Jan Fajerski 563bfdd384 storage: require selectors to always return matching results
Signed-off-by: Jan Fajerski <jfajersk@redhat.com>
2024-10-04 12:10:16 +02:00
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>
2024-10-01 14:36:52 +02:00
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>
2024-09-26 11:54:31 +12:00
Björn Rabenstein df9916ef66
Merge pull request #14677 from prometheus/beorn7/histogram
promql(native histograms): Introduce exponential interpolation
2024-09-19 18:08:59 +02:00
Jan Fajerski 96e5a94d29 promql: rename holt_winters to double_exponential_smoothing
Signed-off-by: Jan Fajerski <jfajersk@redhat.com>
2024-09-19 15:29:01 +02:00
beorn7 6fcd225aee promql(native histograms): Introduce exponential interpolation
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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>
2024-09-19 14:19:10 +02:00
Jan Fajerski 15cea39136 promql: put holt_winters behind experimental feature flag
Signed-off-by: Jan Fajerski <jfajersk@redhat.com>
2024-09-18 15:39:58 +02:00
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`.
2024-09-09 15:44:22 +02:00
Julius Volz f1e0939f2f Document /api/v1/parse_expr endpoint
Signed-off-by: Julius Volz <julius.volz@gmail.com>
2024-09-09 10:27:24 +02:00
Jan Fajerski 00315ce15e Merge branch 'main' into 3.0-main-sync-24-08-30
using -Xours

Signed-off-by: Jan Fajerski <jfajersk@redhat.com>
2024-09-02 11:27:18 +02:00
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>
2024-08-29 23:06:31 +05:30
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
2024-08-21 12:28:55 +02:00
Jan Fajerski 5138922b0d Merge branch 'main' into 3.0-main-sync-24-08-21 2024-08-21 09:09:36 +02:00
suntala ce4eac859a Link to specific feature flag entry
Signed-off-by: suntala <arati.rana@grafana.com>
2024-08-14 13:22:12 +02:00
suntala 532904a1d6 Document changes to sort by label
Co-authored-by: Aleks Fazlieva <britishrum@users.noreply.github.com>
Signed-off-by: suntala <arati.rana@grafana.com>
2024-08-11 21:44:03 +02:00
suntala 77d111e501 Fix links to feature flags page
Signed-off-by: suntala <arati.rana@grafana.com>
2024-08-02 14:25:22 +02:00
Jan Fajerski 8a96a75ba8 Merge branch 'main' into 3.0-main-sync-24-08-01
Signed-off-by: Jan Fajerski <jfajersk@redhat.com>
2024-08-01 15:44:47 +02:00
Bryan Boreham cc7dcf5afe [DOCS] Querying basics: explain range and instant queries
I often see people ask questions that indicate they don't understand
this point, and launching into "instant vector" and "range vector" is
likely to point them in the wrong direction.

Remove the admonishment that the reader mustn't confuse these things.
Remove mention of "inferred sample timestamps" that is never explained.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2024-07-22 16:31:06 +01:00
Jan Fajerski adf5d6bce1 Merge branch 'main' into 3.0-main-sync-24-07-18
Signed-off-by: Jan Fajerski <jfajersk@redhat.com>

Conflicts:
	VERSION
          pick 3.0.0
	promql/promqltest/testdata/histograms.test
          pick changes from c39776c5b5,
          but adjust 5m range selectors to 10m to account for
          https://github.com/prometheus/prometheus/pull/13904.
Fixes:
        promql/promqltest/testdata/functions.test
	promql/promqltest/testdata/staleness.test
          Tests added in https://github.com/prometheus/prometheus/pull/9138
          need to be adjusted to account for
          https://github.com/prometheus/prometheus/pull/13904.
2024-07-18 15:56:40 +02:00
Bryan Boreham d116bf7b9f
Merge pull request #14109 from harry671003/pass_limit_to_querier
storage: pass limit param as hint in querier
2024-07-12 10:27:52 +01:00
咸鱼暄 bab098a4c1 change all lists to bullets
Signed-off-by: 咸鱼暄 <30610597+smd1121@users.noreply.github.com>
2024-07-11 17:05:23 +02:00
咸鱼暄 ad03ede602 fix markdown list
Signed-off-by: 咸鱼暄 <30610597+smd1121@users.noreply.github.com>
2024-07-11 17:05:23 +02:00
beorn7 706e19912b adjust version number in documentation
Signed-off-by: beorn7 <beorn@grafana.com>
2024-07-10 16:59:33 +02:00
darshanime 1a1b09fc3d Add a note about the new syntax
Signed-off-by: darshanime <deathbullet@gmail.com>
2024-07-10 15:50:23 +02:00
Saswata Mukherjee 398f42de5f
Add label-matcher support to Rules API (#10194)
* Add label-matcher support to Rules API

Signed-off-by: Saswata Mukherjee <saswataminsta@yahoo.com>
Signed-off-by: Yijie Qin <qinyijie@amazon.com>

* Implement suggestions

Signed-off-by: Saswata Mukherjee <saswataminsta@yahoo.com>
Signed-off-by: Yijie Qin <qinyijie@amazon.com>

* Match any matcherSet instead of all

Signed-off-by: Saswata Mukherjee <saswataminsta@yahoo.com>
Signed-off-by: Yijie Qin <qinyijie@amazon.com>

* Don't treat labels.Labels as slice

Signed-off-by: Saswata Mukherjee <saswataminsta@yahoo.com>
Signed-off-by: Yijie Qin <qinyijie@amazon.com>

* Remove non-templated check and fix tests

Signed-off-by: Saswata Mukherjee <saswataminsta@yahoo.com>
Signed-off-by: Yijie Qin <qinyijie@amazon.com>

* Update docs

Signed-off-by: Saswata Mukherjee <saswataminsta@yahoo.com>
Signed-off-by: Yijie Qin <qinyijie@amazon.com>

* fix comments

Signed-off-by: Yijie Qin <qinyijie@amazon.com>

* fix comment

Signed-off-by: Yijie Qin <qinyijie@amazon.com>

* Add comment for matching logic, fix tests after rebase

Signed-off-by: Saswata Mukherjee <saswataminsta@yahoo.com>

---------

Signed-off-by: Saswata Mukherjee <saswataminsta@yahoo.com>
Signed-off-by: Yijie Qin <qinyijie@amazon.com>
Co-authored-by: Yijie Qin <qinyijie@amazon.com>
2024-07-10 13:18:29 +01:00
Jan Fajerski c0d67fd845 Merge branch 'main' into 3.0-main-sync-24-07-09 2024-07-09 16:51:07 +02:00
Julius Volz 0f0b3d82e1 Document info-level annotations in query response
Fixes https://github.com/prometheus/prometheus/issues/14135

Signed-off-by: Julius Volz <julius.volz@gmail.com>
2024-07-06 23:51:00 +02:00
JuanJo Ciarlante c94c5b64c3
feat: add limitk() and limit_ratio() operators (#12503)
* rebase 2024-07-01, picks previous renaming to `limitk()` and `limit_ratio()`

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* gofumpt -d -extra

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* more lint fixes

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* more lint fixes+

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* put limitk() and limit_ratio() behind --enable-feature=promql-experimental-functions

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* EnableExperimentalFunctions for TestConcurrentRangeQueries() also

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* use testutil.RequireEqual to fix tests, WIP equivalent thingie for require.Contains

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* lint fix

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* moar linting

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* rebase 2024-06-19

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* re-add limit(2, metric) testing for N=2 common series subset

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* move `ratio = param` to default switch case, for better readability

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* gofumpt -d -extra util/testutil/cmp.go

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* early break when reaching k elems in limitk(), should have always been so (!)

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* small typo fix

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* no-change small break-loop rearrange for readability

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* remove IsNan(ratio) condition in switch-case, already handled as input validation

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* no-change adding some comments

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* no-change simplify fullMatrix() helper functions used for tests

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* add `limitk(-1, metric)` testcase, which is handled as any k < 1 case

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* engine_test.go: no-change create `requireCommonSeries() helper func (moving code into it) for readability

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* rebase 2024-06-21

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* engine_test.go: HAPPY NOW about its code -> reorg, create and use simpleRangeQuery() function, less lines and more readable ftW \o/

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* move limitk(), limit_ratio() testing to promql/promqltest/testdata/limit.test

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* remove stale leftover after moving tests from engine_test.go to testdata/

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* fix flaky `limit_ratio(0.5, ...)` test case

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* Update promql/engine.go

Co-authored-by: Julius Volz <julius.volz@gmail.com>
Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* Update promql/engine.go

Co-authored-by: Julius Volz <julius.volz@gmail.com>
Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* Update promql/engine.go

Co-authored-by: Julius Volz <julius.volz@gmail.com>
Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* fix AddRatioSample() implementation to use a single conditional (instead of switch/case + fallback return)

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* docs/querying/operators.md: document r < 0

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* add negative limit_ratio() example to docs/querying/examples.md

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* move more extensive docu examples to docs/querying/operators.md

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* typo

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* small docu fix for poor-mans-normality-check, add it to limit.test ;)

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* limit.test: expand "Poor man's normality check" to whole eval range

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* restore mistakenly removed existing small comment

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* expand poors-man-normality-check case(s)

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* Revert "expand poors-man-normality-check case(s)"

This reverts commit f69e1603b2ebe69c0a100197cfbcf6f81644b564, indeed too
flaky 0:)

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* remove humor from docs/querying/operators.md

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* fix signoff

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* add web/ui missing changes

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* expand limit_ratio test cases, cross-fingering they'll not be flaky

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* remove flaky test

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* add missing warnings.Merge(ws) in instant-query return shortcut

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* add missing LimitK||LimitRatio case to codemirror-promql/src/parser/parser.ts

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* fix ui-lint

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* actually fix returned warnings :]

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

---------

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>
Co-authored-by: Julius Volz <julius.volz@gmail.com>
2024-07-03 22:18:57 +02:00
Jan Fajerski b4152309a4 Merge branch 'main' into 3.0-main-sync
Conflicts:
  promql/engine_test.go
    Resolved by picking main changes but adjusting total_samples for
    query "max_over_time(metricWith1HistogramEvery10Seconds[60s])[20s:5s]"
    to 312. Via https://github.com/prometheus/prometheus/pull/13662 this
    histogram now stores 13 values per timestamp, but via
    https://github.com/prometheus/prometheus/pull/13904 the range query
    is now left-open.
  promql/promqltest/testdata/functions.test
    Resolved by picking changes in main. See also
    https://github.com/prometheus/prometheus/pull/13662, but adjust some
    range selectors (`s/1m/2m/`) to account for
    https://github.com/prometheus/prometheus/pull/13904.
  promql/promqltest/testdata/histograms.test
    Resolved by picking changes in main. See also
    https://github.com/prometheus/prometheus/pull/13662, but adjust some
    range selectors (`s/5m/10m/`) to account for
    https://github.com/prometheus/prometheus/pull/13904.

Signed-off-by: Jan Fajerski <jfajersk@redhat.com>
2024-07-03 09:45:25 +02:00
Rick Rackow 9290d1308d
fix(docs/querying): explain ceil behaviour more explicitly with examples (#11987)
* fix(docs/querying): explain `ceil` behaviour more explicitly with examples

Signed-off-by: Rick Rackow <rick.rackow@gmail.com>

* fix(docs/querying): explain `floor` behaviour more explicitly with examples

Signed-off-by: Rick Rackow <rick.rackow@paymenttools.com>

---------

Signed-off-by: Rick Rackow <rick.rackow@gmail.com>
Signed-off-by: Rick Rackow <rick.rackow@paymenttools.com>
Co-authored-by: Rick Rackow <rick.rackow@paymenttools.com>
2024-06-28 22:18:04 +02:00
🌲 Harry 🌊 John 🏔 d5f6887294 Pass limit param as hint to storage.Querier
Signed-off-by: 🌲 Harry 🌊 John 🏔 <johrry@amazon.com>
2024-06-20 09:47:38 -07:00
Zhang Zhanpeng debbdb8608 make matrix selection and lookback left-open and right-closed
Signed-off-by: Zhang Zhanpeng <zhangzhanpeng.zzp@alibaba-inc.com>
Signed-off-by: beorn7 <beorn@grafana.com>
Co-authored-by: beorn7 <beorn@grafana.com>
2024-06-20 22:05:40 +08:00
Charles Korn 76b1237215
Document sorting behaviour
Signed-off-by: Charles Korn <charles.korn@grafana.com>
2024-05-17 13:54:08 +10:00
Kushal shukla d2caf51874
removed formateoverview section (#13994)
docs: Remove outdated information about remote-read API

---------

Signed-off-by: kushagra Shukla <kushalshukla110@gmail.com>
Signed-off-by: Kushal shukla <85934954+kushalShukla-web@users.noreply.github.com>
Signed-off-by: Arthur Silva Sens <arthur.sens@coralogix.com>
Co-authored-by: Arthur Silva Sens <arthur.sens@coralogix.com>
2024-05-03 09:42:39 -03:00
Kartikay 8736772053
web/api: add limit param on series, labels, label-values (#13396)
Support limit parameter in queries to restrict output data to the specified size, on the following endpoints:

/api/v1/series
/api/v1/labels
/api/v1/label/:name:/values

Signed-off-by: Pranshu Srivastava <rexagod@gmail.com>
Signed-off-by: Kartikay <kartikay_2101ce32@iitp.ac.in>
2024-02-29 15:31:13 +00:00
Bryan Boreham c0e36e6bb3 Standardise exemplar label as "trace_id"
This is consistent with the OpenTelemetry standard, and an example in OpenMetrics.

https://github.com/open-telemetry/opentelemetry-specification/blob/89aa01348139/specification/metrics/data-model.md#exemplars
https://github.com/OpenObservability/OpenMetrics/blob/138654493130/specification/OpenMetrics.md#exemplars-1

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2024-02-15 14:20:08 +00:00
pschou b66b0a5288
docs: improve "Querying Prometheus" readability (#8492)
Signed-off-by: schou <pschou@users.noreply.github.com>
Co-authored-by: George Krajcsovits <krajorama@users.noreply.github.com>
Co-authored-by: Bryan Boreham <bjboreham@gmail.com>
2024-02-09 17:37:14 +00:00
Faustas Butkus 6feffeb92e
promql: add histogram_avg function (#13467)
Add histogram_avg function

---------

Signed-off-by: Faustas Butkus <faustas.butkus@gmail.com>
Signed-off-by: Björn Rabenstein <github@rabenste.in>
Co-authored-by: Björn Rabenstein <github@rabenste.in>
2024-02-01 18:28:42 +01:00
Björn Rabenstein 89523cf9b3
doc: Mark mad_over_time as experimental (#13440)
We forgot to do that in
https://github.com/prometheus/prometheus/pull/13059

Signed-off-by: beorn7 <beorn@grafana.com>
2024-01-23 17:05:34 +01:00
Ivan Babrou a6b35ff304
promql: use natural sort in sort_by_label and sort_by_label_desc (#13411)
These functions are intended for humans, as robots can already sort the results
however they please. Humans like things sorted "naturally":

* https://blog.codinghorror.com/sorting-for-humans-natural-sort-order/

A similar thing has been done to Grafana, which is also used by humans:

* https://github.com/grafana/grafana/pull/78024
* https://github.com/grafana/grafana/pull/78494

Signed-off-by: Ivan Babrou <github@ivan.computer>
2024-01-16 21:34:09 -03:00
Ted Robertson cf9e934036
Examples: link to rate for new users (#10535)
* Examples: link to `rate` for new users

Signed-off-by: Ted Robertson 10043369+tredondo@users.noreply.github.com
Co-authored-by: Bryan Boreham <bjboreham@gmail.com>
2024-01-16 11:13:52 +00:00