Commit graph

308 commits

Author SHA1 Message Date
Nicolás Pazos 84a83f5c82 Merge branch 'main' into njpm/rw2-sync-main
Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>
2024-02-21 10:50:14 -03:00
Owen Williams a28d7865ad UTF-8: Add support for parsing UTF8 metric and label names
This adds support for the new grammar of `{"metric_name", "l1"="val"}` to promql and some of the exposition formats.
This grammar will also be valid for non-UTF-8 names.
UTF-8 names will not be considered valid unless model.NameValidationScheme is changed.

This does not update the go expfmt parser in text_parse.go, which will be addressed by https://github.com/prometheus/common/issues/554/.

Part of https://github.com/prometheus/prometheus/issues/13095

Signed-off-by: Owen Williams <owen.williams@grafana.com>
2024-02-15 14:34:37 -05:00
Bryan Boreham 17f48f2b3b Tests: use replacement DeepEquals in more places
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2024-02-08 19:32:33 +00:00
Bryan Boreham d0dee51aac scrape tests: check NaN values directly
Normally, a NaN value is never equal to any other value. Compare sample
values via `Float64bits` so that NaN values which are exactly the same
will compare equal.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2024-02-08 19:30:20 +00:00
Bryan Boreham 39af788dbd Tests: use replacement DeepEquals using go-cmp
Use DeepEqual replacement using go-cmp, which is more flexible.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2024-02-08 19:30:20 +00:00
Callum Styan 552620a8ec
remote write 2.0 - follow up improvements (#13478)
* move remote write proto version config from a remote storage config to a
per remote write configuration option

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* rename scrape config for metadata, fix 2.0 header var name/value (was
1.1), and more clean up

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* address review comments, mostly lint fixes

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* another lint fix

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* lint imports

Signed-off-by: Callum Styan <callumstyan@gmail.com>

---------

Signed-off-by: Callum Styan <callumstyan@gmail.com>
2024-02-02 15:10:40 -08:00
Nicolás Pazos aa3513fc89
remote write 2.0: sync with main branch (#13510)
* consoles: exclude iowait and steal from CPU Utilisation

'iowait' and 'steal' indicate specific idle/wait states, which shouldn't
be counted into CPU Utilisation. Also see
https://github.com/prometheus-operator/kube-prometheus/pull/796 and
https://github.com/kubernetes-monitoring/kubernetes-mixin/pull/667.

Per the iostat man page:

%idle
    Show the percentage of time that the CPU or CPUs were idle and the
    system did not have an outstanding disk I/O request.

%iowait
     Show the percentage of time that the CPU or CPUs were idle during
     which the system had an outstanding disk I/O request.

%steal
     Show the percentage of time spent in involuntary wait by the
     virtual CPU or CPUs while the hypervisor was servicing another
     virtual processor.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>

* tsdb: shrink txRing with smaller integers

4 billion active transactions ought to be enough for anyone.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* tsdb: create isolation transaction slice on demand

When Prometheus restarts it creates every series read in from the WAL,
but many of those series will be finished, and never receive any more
samples. By defering allocation of the txRing slice to when it is first
needed, we save 32 bytes per stale series.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* add cluster variable to Overview dashboard

Signed-off-by: Erik Sommer <ersotech@posteo.de>

* promql: simplify Native Histogram arithmetics

Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com>

* Cut 2.49.0-rc.0 (#13270)

* Cut 2.49.0-rc.0

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Removed the duplicate.

Signed-off-by: bwplotka <bwplotka@gmail.com>

---------

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Add unit protobuf parser

Signed-off-by: Arianna Vespri <arianna.vespri@yahoo.it>

* Go on adding protobuf parsing for unit

Signed-off-by: Arianna Vespri <arianna.vespri@yahoo.it>

* ui: create a reproduction for https://github.com/prometheus/prometheus/issues/13292

Signed-off-by: machine424 <ayoubmrini424@gmail.com>

* Get conditional right

Signed-off-by: Arianna Vespri <arianna.vespri@yahoo.it>

* Get VM Scale Set NIC (#13283)

Calling `*armnetwork.InterfacesClient.Get()` doesn't work for Scale Set
VM NIC, because these use a different Resource ID format.

Use `*armnetwork.InterfacesClient.GetVirtualMachineScaleSetNetworkInterface()`
instead.  This needs both the scale set name and the instance ID, so
add an `InstanceID` field to the `virtualMachine` struct.  `InstanceID`
is empty for a VM that isn't a ScaleSetVM.

Signed-off-by: Daniel Nicholls <daniel.nicholls@resdiary.com>

* Cut v2.49.0-rc.1

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Delete debugging lines, amend error message for unit

Signed-off-by: Arianna Vespri <arianna.vespri@yahoo.it>

* Correct order in error message

Signed-off-by: Arianna Vespri <arianna.vespri@yahoo.it>

* Consider storage.ErrTooOldSample as non-retryable

Signed-off-by: Daniel Kerbel <nmdanny@gmail.com>

* scrape_test.go: Increase scrape interval in TestScrapeLoopCache to reduce potential flakiness

Signed-off-by: machine424 <ayoubmrini424@gmail.com>

* Avoid creating string for suffix, consider counters without _total suffix

Signed-off-by: Arianna Vespri <arianna.vespri@yahoo.it>

* build(deps): bump github.com/prometheus/client_golang

Bumps [github.com/prometheus/client_golang](https://github.com/prometheus/client_golang) from 1.17.0 to 1.18.0.
- [Release notes](https://github.com/prometheus/client_golang/releases)
- [Changelog](https://github.com/prometheus/client_golang/blob/main/CHANGELOG.md)
- [Commits](https://github.com/prometheus/client_golang/compare/v1.17.0...v1.18.0)

---
updated-dependencies:
- dependency-name: github.com/prometheus/client_golang
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* build(deps): bump actions/setup-node from 3.8.1 to 4.0.1

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 3.8.1 to 4.0.1.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](5e21ff4d9b...b39b52d121)

---
updated-dependencies:
- dependency-name: actions/setup-node
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* scripts: sort file list in embed directive

Otherwise the resulting string depends on find, which afaict depends on
the underlying filesystem. A stable file list make it easier to detect
UI changes in downstreams that need to track UI assets.

Signed-off-by: Jan Fajerski <jfajersk@redhat.com>

* Fix DataTableProps['data'] for resultType string

Signed-off-by: Kevin Mingtarja <kevin.mingtarja@gmail.com>

* Fix handling of scalar and string in isHeatmapData

Signed-off-by: Kevin Mingtarja <kevin.mingtarja@gmail.com>

* build(deps): bump github.com/influxdata/influxdb

Bumps [github.com/influxdata/influxdb](https://github.com/influxdata/influxdb) from 1.11.2 to 1.11.4.
- [Release notes](https://github.com/influxdata/influxdb/releases)
- [Commits](https://github.com/influxdata/influxdb/compare/v1.11.2...v1.11.4)

---
updated-dependencies:
- dependency-name: github.com/influxdata/influxdb
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

* build(deps): bump github.com/prometheus/prometheus

Bumps [github.com/prometheus/prometheus](https://github.com/prometheus/prometheus) from 0.48.0 to 0.48.1.
- [Release notes](https://github.com/prometheus/prometheus/releases)
- [Changelog](https://github.com/prometheus/prometheus/blob/main/CHANGELOG.md)
- [Commits](https://github.com/prometheus/prometheus/compare/v0.48.0...v0.48.1)

---
updated-dependencies:
- dependency-name: github.com/prometheus/prometheus
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

* Bump client_golang to v1.18.0 (#13373)

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>

* Drop old inmemory samples (#13002)

* Drop old inmemory samples

Co-authored-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* Avoid copying timeseries when the feature is disabled

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* Run gofmt

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* Clarify docs

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* Add more logging info

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* Remove loggers

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* optimize function and add tests

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* Simplify filter

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* rename var

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* Update help info from metrics

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* use metrics to keep track of drop elements during buildWriteRequest

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* rename var in tests

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* pass time.Now as parameter

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* Change buildwriterequest during retries

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* Revert "Remove loggers"

This reverts commit 54f91dfcae20488944162335ab4ad8be459df1ab.

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* use log level debug for loggers

Signed-off-by: Marc Tuduri <marctc@protonmail.com>

* Fix linter

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>

* Remove noisy debug-level logs; add 'reason' label to drop metrics

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>

* Remove accidentally committed files

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>

* Propagate logger to buildWriteRequest to log dropped data

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>

* Fix docs comment

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>

* Make drop reason more specific

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>

* Remove unnecessary pass of logger

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>

* Use snake_case for reason label

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>

* Fix dropped samples metric

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>

---------

Signed-off-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
Signed-off-by: Paschalis Tsilias <tpaschalis@users.noreply.github.com>
Co-authored-by: Paschalis Tsilias <paschalis.tsilias@grafana.com>
Co-authored-by: Paschalis Tsilias <tpaschalis@users.noreply.github.com>

* fix(discovery): allow requireUpdate util to timeout in discovery/file/file_test.go.

The loop ran indefinitely if the condition isn't met.

Before, each iteration created a new timer channel which was always outpaced by
the other timer channel with smaller duration.

minor detail: There was a memory leak: resources of the ~10 previous timers were
constantly kept. With the fix, we may keep the resources of one timer around for defaultWait
but this isn't worth the changes to make it right.

Signed-off-by: machine424 <ayoubmrini424@gmail.com>

* Merge pull request #13371 from kevinmingtarja/fix-isHeatmapData

ui: fix handling of scalar and string in isHeatmapData

* tsdb/{index,compact}: allow using custom postings encoding format (#13242)

* tsdb/{index,compact}: allow using custom postings encoding format

We would like to experiment with a different postings encoding format in
Thanos so in this change I am proposing adding another argument to
`NewWriter` which would allow users to change the format if needed.
Also, wire the leveled compactor so that it would be possible to change
the format there too.

Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@vinted.com>

* tsdb/compact: use a struct for leveled compactor options

As discussed on Slack, let's use a struct for the options in leveled
compactor.

Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@vinted.com>

* tsdb: make changes after Bryan's review

- Make changes less intrusive
- Turn the postings encoder type into a function
- Add NewWriterWithEncoder()

Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@vinted.com>

---------

Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@vinted.com>

* Cut 2.49.0-rc.2

Signed-off-by: bwplotka <bwplotka@gmail.com>

* build(deps): bump actions/setup-go from 3.5.0 to 5.0.0 in /scripts (#13362)

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 3.5.0 to 5.0.0.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](6edd4406fa...0c52d547c9)

---
updated-dependencies:
- dependency-name: actions/setup-go
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* build(deps): bump github/codeql-action from 2.22.8 to 3.22.12 (#13358)

Bumps [github/codeql-action](https://github.com/github/codeql-action) from 2.22.8 to 3.22.12.
- [Release notes](https://github.com/github/codeql-action/releases)
- [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md)
- [Commits](407ffafae6...012739e508)

---
updated-dependencies:
- dependency-name: github/codeql-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* put @nexucis has a release shepherd (#13383)

Signed-off-by: Augustin Husson <augustin.husson@amadeus.com>

* Add analyze histograms command to promtool (#12331)

Add `query analyze` command to promtool

This command analyzes the buckets of classic and native histograms,
based on data queried from the Prometheus query API, i.e. it
doesn't require direct access to the TSDB files.

Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>

---------

Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>

* included instance in all necessary descriptions

Signed-off-by: Erik Sommer <ersotech@posteo.de>

* tsdb/compact: fix passing merge func

Fixing a very small logical problem I've introduced :(.

Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@vinted.com>

* tsdb: add enable overlapping compaction

This functionality is needed in downstream projects because they have a
separate component that does compaction.

Upstreaming
7c8e9a2a76/tsdb/compact.go (L323-L325).

Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@vinted.com>

* Cut 2.49.0

Signed-off-by: bwplotka <bwplotka@gmail.com>

* promtool: allow setting multiple matchers to "promtool tsdb dump" command. (#13296)

Conditions are ANDed inside the same matcher but matchers are ORed

Including unit tests for "promtool tsdb dump".

Refactor some matchers scraping utils.

Signed-off-by: machine424 <ayoubmrini424@gmail.com>

* Fixed changelog

Signed-off-by: bwplotka <bwplotka@gmail.com>

* tsdb/main: wire "EnableOverlappingCompaction" to tsdb.Options (#13398)

This added the https://github.com/prometheus/prometheus/pull/13393
"EnableOverlappingCompaction" parameter to the compactor code but not to
the tsdb.Options. I forgot about that. Add it to `tsdb.Options` too and
set it to `true` in Prometheus.

Copy/paste the description from
https://github.com/prometheus/prometheus/pull/13393#issuecomment-1891787986

Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@vinted.com>

* Issue #13268: fix quality value in accept header

Signed-off-by: Kumar Kalpadiptya Roy <kalpadiptya.roy@outlook.com>

* Cut 2.49.1 with scrape q= bugfix.

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Cut 2.49.1 web package.

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Restore more efficient version of NewPossibleNonCounterInfo annotation (#13022)

Restore more efficient version of NewPossibleNonCounterInfo annotation

Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>

---------

Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>

* Fix regressions introduced by #13242

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* fix slice copy in 1.20 (#13389)

The slices package is added to the standard library in Go 1.21;
we need to import from the exp area to maintain compatibility with Go 1.20.

Signed-off-by: tyltr <tylitianrui@126.com>

* Docs: Query Basics: link to rate (#10538)

Co-authored-by: Julien Pivotto <roidelapluie@o11y.eu>

* chore(kubernetes): check preconditions earlier and avoid unnecessary checks or iterations

Signed-off-by: machine424 <ayoubmrini424@gmail.com>

* 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>

* 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>

* TestLabelValuesWithMatchers: Add test case

Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>

* remove  obsolete build tag

Signed-off-by: tyltr <tylitianrui@126.com>

* Upgrade some golang dependencies for resty 2.11

Signed-off-by: Israel Blancas <iblancasa@gmail.com>

* Native Histograms: support `native_histogram_min_bucket_factor` in scrape_config (#13222)

Native Histograms: support native_histogram_min_bucket_factor in scrape_config

---------

Signed-off-by: Ziqi Zhao <zhaoziqi9146@gmail.com>
Signed-off-by: Björn Rabenstein <github@rabenste.in>
Co-authored-by: George Krajcsovits <krajorama@users.noreply.github.com>
Co-authored-by: Björn Rabenstein <github@rabenste.in>

* Add warnings for histogramRate applied with isCounter not matching counter/gauge histogram (#13392)

Add warnings for histogramRate applied with isCounter not matching counter/gauge histogram

---------

Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>

* Minor fixes to otlp vendor update script

Signed-off-by: Goutham <gouthamve@gmail.com>

* build(deps): bump github.com/hetznercloud/hcloud-go/v2

Bumps [github.com/hetznercloud/hcloud-go/v2](https://github.com/hetznercloud/hcloud-go) from 2.4.0 to 2.6.0.
- [Release notes](https://github.com/hetznercloud/hcloud-go/releases)
- [Changelog](https://github.com/hetznercloud/hcloud-go/blob/main/CHANGELOG.md)
- [Commits](https://github.com/hetznercloud/hcloud-go/compare/v2.4.0...v2.6.0)

---
updated-dependencies:
- dependency-name: github.com/hetznercloud/hcloud-go/v2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* Enhanced visibility for `promtool test rules` with JSON colored formatting (#13342)

* Added diff flag for unit test to improvise readability & debugging

Signed-off-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>

* Removed blank spaces

Signed-off-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>

* Fixed linting error

Signed-off-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>

* Added cli flags to documentation

Signed-off-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>

* Revert unrrelated linting fixes

Signed-off-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>

* Fixed review suggestions

Signed-off-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>

* Cleanup

Signed-off-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>

* Updated flag description

Signed-off-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>

* Updated flag description

Signed-off-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>

---------

Signed-off-by: Rewanth Tammana <22347290+rewanthtammana@users.noreply.github.com>

* storage: skip merging when no remote storage configured

Prometheus is hard-coded to use a fanout storage between TSDB and
a remote storage which by default is empty.
This change detects the empty storage and skips merging between
result sets, which would make `Select()` sort results.

Bottom line: we skip a sort unless there really is some remote storage
configured.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* Remove csmarchbanks from remote write owners (#13432)

I have not had the time to keep up with remote write and have no plans
to work on it in the near future so I am withdrawing my maintainership
of that part of the codebase. I continue to focus on client_python.

Signed-off-by: Chris Marchbanks <csmarchbanks@gmail.com>

* add more context cancellation check at evaluation time

Signed-off-by: Ben Ye <benye@amazon.com>

* Optimize label values with matchers by taking shortcuts (#13426)

Don't calculate postings beforehand: we may not need them. If all
matchers are for the requested label, we can just filter its values.

Also, if there are no values at all, no need to run any kind of
logic.

Also add more labelValuesWithMatchers benchmarks

Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>

* Add automatic memory limit handling

Enable automatic detection of memory limits and configure GOMEMLIMIT to
match.
* Also includes a flag to allow controlling the reserved ratio.

Signed-off-by: SuperQ <superq@gmail.com>

* Update OSSF badge link (#13433)

Provide a more user friendly interface

Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>

* SD Managers taking over responsibility for registration of debug metrics (#13375)

SD Managers take over responsibility for SD metrics registration

---------

Signed-off-by: Paulin Todev <paulin.todev@gmail.com>
Signed-off-by: Björn Rabenstein <github@rabenste.in>
Co-authored-by: Björn Rabenstein <github@rabenste.in>

* Optimize histogram iterators (#13340)

Optimize histogram iterators

Histogram iterators allocate new objects in the AtHistogram and
AtFloatHistogram methods, which makes calculating rates over long
ranges expensive.

In #13215 we allowed an existing object to be reused
when converting an integer histogram to a float histogram. This commit follows
the same idea and allows injecting an existing object in the AtHistogram and
AtFloatHistogram methods. When the injected value is nil, iterators allocate
new histograms, otherwise they populate and return the injected object.

The commit also adds a CopyTo method to Histogram and FloatHistogram which
is used in the BufferedIterator to overwrite items in the ring instead of making
new copies.

Note that a specialized HPoint pool is needed for all of this to work 
(`matrixSelectorHPool`).

---------

Signed-off-by: Filip Petkovski <filip.petkovsky@gmail.com>
Co-authored-by: George Krajcsovits <krajorama@users.noreply.github.com>

* 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>

* Change metric label for Puppetdb from 'http' to 'puppetdb'

Signed-off-by: Paulin Todev <paulin.todev@gmail.com>

* mirror metrics.proto change & generate code

Signed-off-by: Ziqi Zhao <zhaoziqi9146@gmail.com>

* TestHeadLabelValuesWithMatchers: Add test case (#13414)

Add test case to TestHeadLabelValuesWithMatchers, while fixing a couple
of typos in other test cases. Also enclosing some implicit sub-tests in a
`t.Run` call to make them explicitly sub-tests.

Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>

* update all go dependencies (#13438)

Signed-off-by: Augustin Husson <husson.augustin@gmail.com>

* build(deps): bump the k8s-io group with 2 updates (#13454)

Bumps the k8s-io group with 2 updates: [k8s.io/api](https://github.com/kubernetes/api) and [k8s.io/client-go](https://github.com/kubernetes/client-go).


Updates `k8s.io/api` from 0.28.4 to 0.29.1
- [Commits](https://github.com/kubernetes/api/compare/v0.28.4...v0.29.1)

Updates `k8s.io/client-go` from 0.28.4 to 0.29.1
- [Changelog](https://github.com/kubernetes/client-go/blob/master/CHANGELOG.md)
- [Commits](https://github.com/kubernetes/client-go/compare/v0.28.4...v0.29.1)

---
updated-dependencies:
- dependency-name: k8s.io/api
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: k8s-io
- dependency-name: k8s.io/client-go
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: k8s-io
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* build(deps): bump the go-opentelemetry-io group with 1 update (#13453)

Bumps the go-opentelemetry-io group with 1 update: [go.opentelemetry.io/collector/semconv](https://github.com/open-telemetry/opentelemetry-collector).


Updates `go.opentelemetry.io/collector/semconv` from 0.92.0 to 0.93.0
- [Release notes](https://github.com/open-telemetry/opentelemetry-collector/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-collector/blob/main/CHANGELOG-API.md)
- [Commits](https://github.com/open-telemetry/opentelemetry-collector/compare/v0.92.0...v0.93.0)

---
updated-dependencies:
- dependency-name: go.opentelemetry.io/collector/semconv
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: go-opentelemetry-io
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* build(deps): bump actions/upload-artifact from 3.1.3 to 4.0.0 (#13355)

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 3.1.3 to 4.0.0.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](a8a3f3ad30...c7d193f32e)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* build(deps): bump bufbuild/buf-push-action (#13357)

Bumps [bufbuild/buf-push-action](https://github.com/bufbuild/buf-push-action) from 342fc4cdcf29115a01cf12a2c6dd6aac68dc51e1 to a654ff18effe4641ebea4a4ce242c49800728459.
- [Release notes](https://github.com/bufbuild/buf-push-action/releases)
- [Commits](342fc4cdcf...a654ff18ef)

---
updated-dependencies:
- dependency-name: bufbuild/buf-push-action
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Labels: Add DropMetricName function, used in PromQL (#13446)

This function is called very frequently when executing PromQL functions,
and we can do it much more efficiently inside Labels.

In the common case that `__name__` comes first in the labels, we simply
re-point to start at the next label, which is nearly free.

`DropMetricName` is now so cheap I removed the cache - benchmarks show
everything still goes faster.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* tsdb: simplify internal series delete function (#13261)

Lifting an optimisation from Agent code, `seriesHashmap.del` can use
the unique series reference, doesn't need to check Labels.
Also streamline the logic for deleting from `unique` and `conflicts` maps,
and add some comments to help the next person.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* otlptranslator/update-copy.sh: Fix sed command lines

Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>

* Rollback k8s.io requirements (#13462)

Rollback k8s.io Go modules to v0.28.6 to avoid forcing upgrade of Go to
1.21. This allows us to keep compatibility with the currently supported
upstream Go releases.

Signed-off-by: SuperQ <superq@gmail.com>

* Make update-copy.sh work for both OSX and GNU sed

Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>

* Name @beorn7 and @krajorama as maintainers for native histograms

I have been the de-facto maintainer for native histograms from the
beginning. So let's put this into MAINTAINERS.md.

In addition, I hereby proposose George Krajcsovits AKA Krajo as a
co-maintainer. He has contributed a lot of native histogram code, but
more importantly, he has contributed substantially to reviewing other
contributors' native histogram code, up to a point where I was merely
rubberstamping the PRs he had already reviewed. I'm confident that he
is ready to to be granted commit rights as outlined in the
"Maintainers" section of the governance:
https://prometheus.io/governance/#maintainers

According to the same section of the governance, I will announce the
proposed change on the developers mailing list and will give some time
for lazy consensus before merging this PR.

Signed-off-by: beorn7 <beorn@grafana.com>

* ui/fix: correct url handling for stacked graphs (#13460)

Signed-off-by: Yury Moladau <yurymolodov@gmail.com>

* tsdb: use cheaper Mutex on series

Mutex is 8 bytes; RWMutex is 24 bytes and much more complicated. Since
`RLock` is only used in two places, `UpdateMetadata` and `Delete`,
neither of which are hotspots, we should use the cheaper one.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* Fix last_over_time for native histograms

The last_over_time retains a histogram sample without making a copy.
This sample is now coming from the buffered iterator used for windowing functions,
and can be reused for reading subsequent samples as the iterator progresses.

I would propose copying the sample in the last_over_time function, similar to
how it is done for rate, sum_over_time and others.

Signed-off-by: Filip Petkovski <filip.petkovsky@gmail.com>

* Implementation

NOTE:
Rebased from main after refactor in #13014

Signed-off-by: Danny Kopping <danny.kopping@grafana.com>

* Add feature flag

Signed-off-by: Danny Kopping <danny.kopping@grafana.com>

* Refactor concurrency control

Signed-off-by: Danny Kopping <danny.kopping@grafana.com>

* Optimising dependencies/dependents funcs to not produce new slices each request

Signed-off-by: Danny Kopping <danny.kopping@grafana.com>

* Refactoring

Signed-off-by: Danny Kopping <danny.kopping@grafana.com>

* Rename flag

Signed-off-by: Danny Kopping <danny.kopping@grafana.com>

* Refactoring for performance, and to allow controller to be overridden

Signed-off-by: Danny Kopping <danny.kopping@grafana.com>

* Block until all rules, both sync & async, have completed evaluating
Updated & added tests
Review feedback nits
Return empty map if not indeterminate
Use highWatermark to track inflight requests counter
Appease the linter
Clarify feature flag

Signed-off-by: Danny Kopping <danny.kopping@grafana.com>

* Fix typo in CLI flag description

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* Fixed auto-generated doc

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* Improve doc

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* Simplify the design to update concurrency controller once the rule evaluation has done

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* Add more test cases to TestDependenciesEdgeCases

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* Added more test cases to TestDependenciesEdgeCases

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* Improved RuleConcurrencyController interface doc

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* Introduced sequentialRuleEvalController

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* Remove superfluous nil check in Group.metrics

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* api: Serialize discovered and target labels into JSON directly (#13469)

Converted maps into labels.Labels to avoid a lot of copying of data which leads to very high memory consumption while opening the /service-discovery endpoint in the Prometheus UI

Signed-off-by: Leegin <114397475+Leegin-darknight@users.noreply.github.com>

* api: Serialize discovered labels into JSON directly in dropped targets (#13484)

Converted maps into labels.Labels to avoid a lot of copying of data which leads to very high memory consumption while opening the /service-discovery endpoint in the Prometheus UI

Signed-off-by: Leegin <114397475+Leegin-darknight@users.noreply.github.com>

* Add ShardedPostings() support to TSDB (#10421)

This PR is a reference implementation of the proposal described in #10420.

In addition to what described in #10420, in this PR I've introduced labels.StableHash(). The idea is to offer an hashing function which doesn't change over time, and that's used by query sharding in order to get a stable behaviour over time. The implementation of labels.StableHash() is the hashing function used by Prometheus before stringlabels, and what's used by Grafana Mimir for query sharding (because built before stringlabels was a thing).

Follow up work
As mentioned in #10420, if this PR is accepted I'm also open to upload another foundamental piece used by Grafana Mimir query sharding to accelerate the query execution: an optional, configurable and fast in-memory cache for the series hashes.

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* storage/remote: document why two benchmarks are skipped

One was silently doing nothing; one was doing something but the work
didn't go up linearly with iteration count.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* Pod status changes not discovered by Kube Endpoints SD (#13337)

* fix(discovery/kubernetes/endpoints): react to changes on Pods because some modifications can occur on them without triggering an update on the related Endpoints (The Pod phase changing from Pending to Running e.g.).

---------

Signed-off-by: machine424 <ayoubmrini424@gmail.com>
Co-authored-by: Guillermo Sanchez Gavier <gsanchez@newrelic.com>

* Small improvements, add const, remove copypasta (#8106)

Signed-off-by: Mikhail Fesenko <proggga@gmail.com>
Signed-off-by: Jesus Vazquez <jesusvzpg@gmail.com>

* Proposal to improve FPointSlice and HPointSlice allocation. (#13448)

* Reusing points slice from previous series when the slice is under utilized
* Adding comments on the bench test

Signed-off-by: Alan Protasio <alanprot@gmail.com>

* lint

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

* go mod tidy

Signed-off-by: Nicolás Pazos <npazosmendez@gmail.com>

---------

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
Signed-off-by: Erik Sommer <ersotech@posteo.de>
Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com>
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Signed-off-by: Arianna Vespri <arianna.vespri@yahoo.it>
Signed-off-by: machine424 <ayoubmrini424@gmail.com>
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Signed-off-by: dependabot[bot] <support@github.com>
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Signed-off-by: Ziqi Zhao <zhaoziqi9146@gmail.com>
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Co-authored-by: machine424 <ayoubmrini424@gmail.com>
Co-authored-by: daniel-resdiary <109083091+daniel-resdiary@users.noreply.github.com>
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2024-02-02 10:38:50 -08:00
Paweł Szulik b0c538787d Refactor scrape tests to use testify.
Signed-off-by: Paweł Szulik <paul.szulik@gmail.com>
2024-02-01 13:51:31 +00:00
Bryan Boreham 4ad9b6df2e
Merge pull request #13336 from machine424/flakky
scrape_test.go: Increase scrape interval in TestScrapeLoopCache
to reduce potential flakiness.
2024-01-18 14:12:55 +00:00
Ziqi Zhao df2a0ecf3b
Native Histograms: support native_histogram_min_bucket_factor in scrape_config (#13222)
Native Histograms: support native_histogram_min_bucket_factor in scrape_config

---------

Signed-off-by: Ziqi Zhao <zhaoziqi9146@gmail.com>
Signed-off-by: Björn Rabenstein <github@rabenste.in>
Co-authored-by: George Krajcsovits <krajorama@users.noreply.github.com>
Co-authored-by: Björn Rabenstein <github@rabenste.in>
2024-01-17 16:58:54 +01:00
machine424 2f60177203
scrape_test.go: Increase scrape interval in TestScrapeLoopCache to reduce potential flakiness
Signed-off-by: machine424 <ayoubmrini424@gmail.com>
2023-12-27 19:25:12 +01:00
Julien Pivotto 0763ec841b
Merge pull request #13313 from kalpadiptyaroy/fix-quality-value-accept-header
bug: Fix quality value in accept header
2023-12-21 11:40:30 +01:00
Kumar Kalpadiptya Roy b012366c33 Issue #13268: fix quality value in accept header
Signed-off-by: Kumar Kalpadiptya Roy <kalpadiptya.roy@outlook.com>
2023-12-21 10:33:05 +05:30
Bryan Boreham 75fc8a1535
Merge pull request #13167 from bboreham/simplify-TargetsActive
scrape: simplify TargetsActive function
2023-12-20 12:27:50 +00:00
Bryan Boreham c83e1fc574 textparse: remove MetricType alias
No backwards-compatibility; make a clean break.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2023-12-19 18:56:54 +00:00
Bryan Boreham 8065bef172 Move metric type definitions to common/model
They are used in multiple repos, so common is a better place for them.
Several packages now don't depend on `model/textparse`, e.g.
`storage/remote`.

Also remove `metadata` struct from `api.go`, since it was identical to
a struct in the `metadata` package.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2023-12-19 18:56:54 +00:00
Bryan Boreham 99c17b4319
Merge pull request #13177 from bboreham/less-madness
scrape: consistent function names for metadata
2023-12-19 17:51:52 +00:00
Arthur Silva Sens 5082655392
Append Created Timestamps (#12733)
* Append created timestamps.

Signed-off-by: Arthur Silva Sens <arthur.sens@coralogix.com>

* Log when created timestamps are ignored

Signed-off-by: Arthur Silva Sens <arthur.sens@coralogix.com>

* Proposed changes to Append CT PR.

Changes:

* Changed textparse Parser interface for consistency and robustness.
* Changed CT interface to be more explicit and handle validation.
* Simplified test, change scrapeManager to allow testability.
* Added TODOs.

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Updates.

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Addressed comments.

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Refactor head_appender test

Signed-off-by: Arthur Silva Sens <arthur.sens@coralogix.com>

* Fix linter issues

Signed-off-by: Arthur Silva Sens <arthur.sens@coralogix.com>

* Use model.Sample in head appender test

Signed-off-by: Arthur Silva Sens <arthur.sens@coralogix.com>

---------

Signed-off-by: Arthur Silva Sens <arthur.sens@coralogix.com>
Signed-off-by: bwplotka <bwplotka@gmail.com>
Co-authored-by: bwplotka <bwplotka@gmail.com>
2023-12-11 08:43:42 +00:00
Filip Petkovski 10a82f87fd
Enable reusing memory when converting between histogram types
The 'ToFloat' method on integer histograms currently allocates new memory
each time it is called.

This commit adds an optional *FloatHistogram parameter that can be used
to reuse span and bucket slices. It is up to the caller to make sure the
input float histogram is not used anymore after the call.

Signed-off-by: Filip Petkovski <filip.petkovsky@gmail.com>
2023-12-08 10:22:59 +01:00
Matthieu MOREL 9c4782f1cc
golangci-lint: enable testifylint linter (#13254)
Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>
2023-12-07 11:35:01 +00:00
Björn Rabenstein 980e2895a2
Merge pull request #13129 from fatsheep9146/reduce-resolution-automatically
Native Histograms: automatically reduce resolution rather than fail scrape
2023-11-28 17:26:36 +01:00
Ziqi Zhao 19ecc5dd94 add test case for bigGap
Signed-off-by: Ziqi Zhao <zhaoziqi9146@gmail.com>
2023-11-26 22:20:44 +08:00
Julien Pivotto 965e603fa7
Merge pull request #13184 from bboreham/exemplar-sort
Scraping: use slices.sort for exemplars
2023-11-25 09:34:48 +01:00
Julien Pivotto eda73dd3e5
Merge pull request #13187 from bboreham/refactor-newscrapeloop
Scraping tests: refactor scrapeLoop creation
2023-11-24 19:48:44 +01:00
Bryan Boreham 3e287e0170 Scraping tests: refactor scrapeLoop creation
Pull boilerplate code into a function. Where appropriate we set some
config on the returned object.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2023-11-24 17:28:09 +00:00
Bryan Boreham 784a2d2c74
Merge pull request #12992 from bboreham/single-scrape-buffer-pool
Scraping: share buffer pool across all scrapes
2023-11-24 16:26:19 +00:00
Bryan Boreham f0e1b592ab Scraping: use slices.sort for exemplars
The sort implementation using Go generics is used everywhere else
in Prometheus.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2023-11-24 14:42:26 +00:00
Paulin Todev 0102425af1
Use only one scrapeMetrics object per test. (#13051)
The scrape loop and scrape cache should use the same instance.
This brings the tests' behavior more in line with production.

Signed-off-by: Paulin Todev <paulin.todev@gmail.com>
2023-11-23 11:24:08 +00:00
Bryan Boreham 9051100aba Scraping: share buffer pool across all scrapes
Previously we had one per scrapePool, and one of those per configured
scraping job. Each pool holds a few unused buffers, so sharing one
across all scrapePools reduces total heap memory.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2023-11-23 10:23:34 +00:00
Bryan Boreham 34676a240e scrape: consistent function names for metadata
Too confusing to have `MetadataList` and `ListMetadata`, etc.
I standardised on the ones which are in an interface.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2023-11-23 09:08:02 +00:00
Ziqi Zhao 8fe9250f7d optimize the logic of break the loop of reducing resolution
Signed-off-by: Ziqi Zhao <zhaoziqi9146@gmail.com>
2023-11-21 16:56:56 +08:00
Bryan Boreham f095c33da1 scrape: simplify TargetsActive function
Since everything was serialized on a single mutex, it's exactly the same
if we process targets in sequence without starting goroutines.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2023-11-20 19:28:08 +00:00
Łukasz Mierzwa 870627fbed Add enable_compression scrape config option
Currently Prometheus will always request gzip compression from the target when sending scrape requests.
HTTP compression does reduce the amount of bytes sent over the wire and so is often desirable.
The downside of compression is that it requires extra resources - cpu & memory.

This also affects the resource usage on the target since it has to compress the response
before sending it to Prometheus.

This change adds a new option to the scrape job configuration block: enable_compression.
The default is true so it remains the same as current Prometheus behaviour.

Setting this option to false allows users to disable compression between Prometheus
and the scraped target, which will require more bandwidth but it lowers the resource
usage of both Prometheus and the target.

Fixes #12319.

Signed-off-by: Łukasz Mierzwa <l.mierzwa@gmail.com>
2023-11-20 12:02:55 +00:00
zenador 32ee1b15de
Fix error on ingesting out-of-order exemplars (#13021)
Fix and improve ingesting exemplars for native histograms.

See code comment for a detailed explanation of the algorithm.

Note that this changes the current behavior for all kind of samples slightly: We now allow exemplars with the same timestamp as during the last scrape if the value or the labels have changed.

Also note that we now do not ingest exemplars without timestamps for native histograms anymore.

Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>
Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>
Co-authored-by: Björn Rabenstein <github@rabenste.in>

---------

Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>
Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>
Signed-off-by: zenador <zenador@users.noreply.github.com>
Co-authored-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>
Co-authored-by: Björn Rabenstein <github@rabenste.in>
2023-11-16 15:07:37 +01:00
Ziqi Zhao 10ebeb0a62 rename lastSum -> lastCount && enrich test case with expectBucketCount and expectSchema
Signed-off-by: Ziqi Zhao <zhaoziqi9146@gmail.com>
2023-11-16 13:00:11 +08:00
Ziqi Zhao b94f32f6fa automatically reduce resolution rather than fail scrape
Signed-off-by: Ziqi Zhao <zhaoziqi9146@gmail.com>
2023-11-11 22:24:47 +08:00
Julien Pivotto 0fe34f6d78 Follow-up to #13060: Add test to ensure staleness tracking
This commit introduces an additional test in `scrape_test.go` to verify
staleness tracking when `trackTimestampStaleness` is enabled. The new
`TestScrapeLoopAppendStalenessIfTrackTimestampStaleness` function
asserts that the scrape loop correctly appends staleness markers when
necessary, reflecting the expected behavior with the feature flag turned
on.

The previous tests were only testing end of scrape staleness.

Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu>
2023-11-09 10:20:35 -06:00
Matthieu MOREL fe057fc60d use Go standard errors package
Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>
2023-11-03 07:26:31 +00:00
Matthieu MOREL 7eaefcf379
ci(lint): enable errorlint on scrape (#12923)
Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>
Signed-off-by: Jesus Vazquez <jesusvazquez@users.noreply.github.com>
Co-authored-by: Jesus Vazquez <jesusvazquez@users.noreply.github.com>
2023-11-01 20:06:46 +01:00
George Krajcsovits e399395b01
Native histograms vs labels (#13005)
* Document le and quantile label transition due to native histograms

Fixes: #12984

For full explanation see the related issue. The le and quantile labels
are formatted as float with trailing .0 for whole number values when
native histograms is enabled, e.g. 10.0. This changes the resulting series
in Prometheus if previously we scraped the whole number itself, e.g. 10
over the text format.

Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>

---------

Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>
Signed-off-by: George Krajcsovits <krajorama@users.noreply.github.com>
2023-11-01 18:30:34 +01:00
Björn Rabenstein a43669e611
Merge pull request #12928 from alexandear/ci-enable-godot
ci(lint): enable godot; append dot at the end of comments
2023-11-01 17:15:41 +01:00
Julien Pivotto 84aadfc45b scrape: Added trackTimestampsStaleness configuration option
Add the ability to track staleness when an explicit timestamp is set.
Useful for cAdvisor.

Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu>
2023-10-31 16:58:42 -04:00
Oleksandr Redko fa90ca46e5 ci(lint): enable godot; append dot at the end of comments
Signed-off-by: Oleksandr Redko <Oleksandr_Redko@epam.com>
2023-10-31 19:53:38 +02:00
Oleksandr Redko 8e5f0387a2
ci(lint): enable nolintlint and remove redundant comments (#12926)
Signed-off-by: Oleksandr Redko <Oleksandr_Redko@epam.com>
2023-10-31 12:35:13 +01:00
Paulin Todev 5752050b42
Scrape metrics can now be registered with a non-default registry.
* A registerer is passed to the scrape Manager,
and all scrape metrics register with it.
* For now the registry which we pass to the scrape
Manager is still the global one.

Signed-off-by: Paulin Todev <paulin.todev@gmail.com>
2023-10-11 16:19:00 +01:00
Bartlomiej Plotka 624b973ebf
Added ability to specify scrape protocols to accept during HTTP content type negotiation. (#12738)
* Added ability to specify scrape protocols to accept during HTTP content type negotiation.


This is done via new option in GlobalConfig and ScrapeConfig: "scrape_protocol"

Signed-off-by: bwplotka <bwplotka@gmail.com>

* Fixed readability and log message.

Signed-off-by: bwplotka <bwplotka@gmail.com>

---------

Signed-off-by: bwplotka <bwplotka@gmail.com>
2023-10-10 11:16:55 +01:00
Bryan Boreham f6d9c84fde
scraping: delay creating buffer, to save memory (#12953)
We don't need the buffer to read the response until the scrape http call
returns; creating it earlier makes the buffer pool larger.

I split `scrape()` into `scrape()` which returns with the http response,
and `readResponse()` which decompresses and copies the data into the
supplied buffer. This design was chosen to minimize impact on the logic.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2023-10-09 17:23:53 +01:00
Bryan Boreham 7c934ae18c scraping: hoist labels variable to save garbage
`lset` escapes to heap due to being passed through the text-parser
interface, so we can reduce garbage by hoisting it out of the loop so
only one allocation is done for every series in a scrape.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2023-10-05 11:04:59 +00:00
Goutham Veeramachaneni 86729d4d7b
Update exp package (#12650) 2023-09-21 22:53:51 +02:00
Arve Knudsen 6daee89e5f
Add context argument to Querier.Select (#12660)
Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>
2023-09-12 12:37:38 +02:00