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Added Remote-Write Specification 2.0. #2462

Merged
merged 31 commits into from
Jun 21, 2024
Merged

Added Remote-Write Specification 2.0. #2462

merged 31 commits into from
Jun 21, 2024

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bwplotka
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@bwplotka bwplotka commented May 8, 2024

See proposal prometheus/proposals#35 which explain rationales.

NOTE: The content of this spec is driven by the huge amount of work from @cstyan @alexgreenbank @npazosmendez side on our public remote write 2.0 working group.

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few minor nits and then I think we're good to go

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bwplotka commented Jun 5, 2024

This spec is ready for wider, final review 🤗 🎉 In the markdown comments we linked rationales for certain decisions (against prometheus/proposals#35)

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bwplotka commented Jun 5, 2024

The proposal for moving forward is:

  • Merge NOW the actual spec as "2.0-rc.0" into our docs and announce it as experimental.
  • The Proposal PR will be kept open until protocol is stable.
  • Continue to gather organic feedback (on proposals and issues) and data, based on early adoption. Add 2.0-rc.X for potential changes (ideally small, major ones ONLY if absolutely necessary) and eventually e.g. if we feel so, around PromCon time do the stable 2.0.

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One idea around custom native histograms -> we could add an information if it was auto-translated or not 🤔 cc @beorn7 @krajorama

See proposal prometheus/proposals#35 which explain rationales.

Signed-off-by: bwplotka <[email protected]>
* Addressed Callum review comments.
* Consistent naming for Wire Format, Protocol, Proto Message and Remote-Write. Specifically stop using Wire Format as it's confusing (https://stackoverflow.com/a/70862002).
* Added deprecation notice on summary
* Added links to rationales where important (in commentary).
* Grammarly fixes.

Signed-off-by: bwplotka <[email protected]>
Signed-off-by: bwplotka <[email protected]>
bwplotka and others added 3 commits June 19, 2024 09:58
Co-authored-by: Callum Styan <[email protected]>
Signed-off-by: Bartlomiej Plotka <[email protected]>
Signed-off-by: bwplotka <[email protected]>
…r Senders/Receivers and grammarly run.

Signed-off-by: bwplotka <[email protected]>
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This experimental spec was approved here, but also internally over -team and specific member emails. Let's goo! 💪🏽 🤗 🎉

This spec is ready to get implemented (it's already the case for Prometheus on https://github.com/prometheus/prometheus/tree/remote-write-2.0). Official comms/announcements will come once we have impl branch merged and blog post.

Proposal will be merged on stable release. Up to date list of follow up task are mentioned here.

@bwplotka bwplotka merged commit e200c69 into main Jun 21, 2024
5 checks passed
@bwplotka bwplotka deleted the bwplotka/rw20 branch June 21, 2024 07:43
bwplotka added a commit to prometheus/prometheus that referenced this pull request Jun 21, 2024
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bwplotka added a commit to prometheus/prometheus that referenced this pull request Jun 21, 2024
bwplotka added a commit to prometheus/prometheus that referenced this pull request Jun 24, 2024
bwplotka added a commit to prometheus/prometheus that referenced this pull request Jun 24, 2024
bwplotka added a commit to prometheus/prometheus that referenced this pull request Jun 24, 2024
bwplotka added a commit to prometheus/prometheus that referenced this pull request Jun 24, 2024
bwplotka added a commit to prometheus/prometheus that referenced this pull request Jun 24, 2024
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bwplotka added a commit to prometheus/prometheus that referenced this pull request Jun 25, 2024
Spec: prometheus/docs#2462

Supersedes #13968

Signed-off-by: bwplotka <[email protected]>

# Conflicts:
#	config/config.go
#	docs/configuration/configuration.md
#	storage/remote/queue_manager_test.go
#	storage/remote/write.go
#	web/api/v1/api.go
bwplotka added a commit to prometheus/prometheus that referenced this pull request Jun 25, 2024
Spec: prometheus/docs#2462

Supersedes #13968

Signed-off-by: bwplotka <[email protected]>

# Conflicts:
#	config/config.go
#	docs/configuration/configuration.md
#	storage/remote/queue_manager_test.go
#	storage/remote/write.go
#	web/api/v1/api.go
bwplotka added a commit to prometheus/prometheus that referenced this pull request Jun 25, 2024
Spec: prometheus/docs#2462

Supersedes #13968

Signed-off-by: bwplotka <[email protected]>

# Conflicts:
#	config/config.go
#	docs/configuration/configuration.md
#	storage/remote/queue_manager_test.go
#	storage/remote/write.go
#	web/api/v1/api.go
bwplotka added a commit to prometheus/prometheus that referenced this pull request Jun 25, 2024
Spec: prometheus/docs#2462

Supersedes #13968

Signed-off-by: bwplotka <[email protected]>

# Conflicts:
#	config/config.go
#	docs/configuration/configuration.md
#	storage/remote/queue_manager_test.go
#	storage/remote/write.go
#	web/api/v1/api.go
bwplotka added a commit to prometheus/prometheus that referenced this pull request Jun 26, 2024
…est spec semantics in remote pkg (#14329)

* [PRW-2.0] (part2) Moved to latest basic negotiation & spec semantics.

Spec: prometheus/docs#2462

Supersedes #13968

Signed-off-by: bwplotka <[email protected]>

# Conflicts:
#	config/config.go
#	docs/configuration/configuration.md
#	storage/remote/queue_manager_test.go
#	storage/remote/write.go
#	web/api/v1/api.go

* Addressed comments.

Signed-off-by: bwplotka <[email protected]>

---------

Signed-off-by: bwplotka <[email protected]>
cstyan added a commit to prometheus/prometheus that referenced this pull request Jul 4, 2024
…support + metadata in WAL) (#14395)

* Remote Write 1.1: e2e benchmarks (#13102)

* Remote Write e2e benchmarks

Signed-off-by: Nicolás Pazos <[email protected]>

* Prometheus ports automatically assigned

Signed-off-by: Nicolás Pazos <[email protected]>

* make dashboard editable + more modular to different job label values

Signed-off-by: Callum Styan <[email protected]>

* Dashboard improvements

* memory stats
* diffs look at counter increases

Signed-off-by: Nicolás Pazos <[email protected]>

* run script: absolute path for config templates

Signed-off-by: Nicolás Pazos <[email protected]>

* grafana dashboard improvements

* show actual values of metrics
* add memory stats and diff

Signed-off-by: Nicolás Pazos <[email protected]>

* dashboard changes

Signed-off-by: Callum Styan <[email protected]>

---------

Signed-off-by: Nicolás Pazos <[email protected]>
Signed-off-by: Callum Styan <[email protected]>
Co-authored-by: Callum Styan <[email protected]>

* replace snappy encoding library

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* add new proto types

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* add decode function for new write request proto

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* add lookup table struct that is used to build the symbol table in new
write request format

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* Implement code paths for new proto format

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* update example server to include handler for new format

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* Add new test client

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* tests and new -> original proto mapping util

Signed-off-by: Nicolás Pazos <[email protected]>

* add new proto support on receiver end

Signed-off-by: Nicolás Pazos <[email protected]>

* Fix test

Signed-off-by: Nicolás Pazos <[email protected]>

* no-brainer copypaste but more performance write support

Signed-off-by: Nicolás Pazos <[email protected]>

* remove some comented code

Signed-off-by: Nicolás Pazos <[email protected]>

* fix mocks and fixture

Signed-off-by: Nicolás Pazos <[email protected]>

* add basic reduce remote write handler benchmark

Signed-off-by: Nicolás Pazos <[email protected]>

* refactor out common code between write methods

Signed-off-by: Nicolás Pazos <[email protected]>

* fix: queue manager to include float histograms in new requests

Signed-off-by: Nicolás Pazos <[email protected]>

* add sender-side tests and fix failing ones

Signed-off-by: Nicolás Pazos <[email protected]>

* refactor queue manager code to remove some duplication

Signed-off-by: Nicolás Pazos <[email protected]>

* fix build

Signed-off-by: Nicolás Pazos <[email protected]>

* Improve sender benchmarks and some allocations

Signed-off-by: Nicolás Pazos <[email protected]>

* Use github.com/golang/snappy

Signed-off-by: Nicolás Pazos <[email protected]>

* cleanup: remove hardcoded fake url for testing

Signed-off-by: Nicolás Pazos <[email protected]>

* Add 1.1 version handling code

Signed-off-by: Nicolás Pazos <[email protected]>

* Remove config, update proto

Signed-off-by: Nicolás Pazos <[email protected]>

* gofmt

Signed-off-by: Nicolás Pazos <[email protected]>

* fix NewWriteClient and change new flags wording

Signed-off-by: Nicolás Pazos <[email protected]>

* fields rewording in handler

Signed-off-by: Nicolás Pazos <[email protected]>

* remote write handler to checks version header

Signed-off-by: Nicolás Pazos <[email protected]>

* fix typo in log

Signed-off-by: Nicolás Pazos <[email protected]>

* lint

Signed-off-by: Nicolás Pazos <[email protected]>

* Add minmized remote write proto format

Co-authored-by: Marco Pracucci <[email protected]>
Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* add functions for translating between new proto formats symbol table and
actual prometheus labels

Co-authored-by: Marco Pracucci <[email protected]>
Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* add functionality for new minimized remote write request format

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* fix minor things

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* Make LabelSymbols a fixed32

Signed-off-by: Nicolás Pazos <[email protected]>

* remove unused proto type

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* update tests

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* fix build for stringlabels tag

Signed-off-by: Nicolás Pazos <[email protected]>

* Use two uint32 to encode (offset,leng)

Signed-off-by: Nicolás Pazos <[email protected]>

* manually optimize varint marshaling

Signed-off-by: Nicolás Pazos <[email protected]>

* Use unsafe []byte->string cast to reuse buffer

Signed-off-by: Nicolás Pazos <[email protected]>

* fix writeRequestMinimizedFixture

Signed-off-by: Nicolás Pazos <[email protected]>

* remove all code from previous interning approach

the 'minimized' version is now the only v1.1 version

Signed-off-by: Nicolás Pazos <[email protected]>

* minimally-tested exemplar support for rw 1.1

Signed-off-by: Nicolás Pazos <[email protected]>

* refactor new version flag to make it easier to pick a specific format
instead of having multiple flags, plus add new formats for testing

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* use exp slices for backwards compat. to go 1.20 plus add copyright
header to test file

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* fix label ranging

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* Add bytes slice (instead of slice of 32bit vars) format for testing

Co-authored-by: Nicolás Pazos <[email protected]>
Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* test additional len and lenbytes formats

Co-authored-by: Nicolás Pazos <[email protected]>
Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* remove mistaken package lock changes

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* remove formats we've decided not to use

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* remove more format types we probably won't use

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* More cleanup

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* use require instead of assert in custom marshal test

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* cleanup; remove some unused functions

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* more cleanup, mostly linting fixes

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* remove package-lock.json change again

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* more cleanup, address review comments

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* fix test panic

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* fix minor lint issue + use labels Range function since it looks like
the tests fail to do `range labels.Labels` on CI

Signed-off-by: Callum Styan <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* new interning format based on []string indeces

Co-authored-by: bwplotka <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* remove all new rw formats but the []string one

also adapt tests to the new format

Signed-off-by: Nicolás Pazos <[email protected]>

* cleanup rwSymbolTable

Signed-off-by: Nicolás Pazos <[email protected]>

* add some TODOs for later

Signed-off-by: Nicolás Pazos <[email protected]>

* don't reserve field 3 for new proto and add TODO

Signed-off-by: Nicolás Pazos <[email protected]>

* fix custom marshaling

Signed-off-by: Nicolás Pazos <[email protected]>

* lint

Signed-off-by: Nicolás Pazos <[email protected]>

* additional merge fixes

Signed-off-by: Nicolás Pazos <[email protected]>

* lint fixes

Signed-off-by: Nicolás Pazos <[email protected]>

* fix server example

Signed-off-by: Nicolás Pazos <[email protected]>

* revert package-lock.json changes

Signed-off-by: Nicolás Pazos <[email protected]>

* update example prometheus version

Signed-off-by: Nicolás Pazos <[email protected]>

* define separate proto types for remote write 2.0

Signed-off-by: Nicolás Pazos <[email protected]>

* lint

Signed-off-by: Nicolás Pazos <[email protected]>

* rename new proto types and move to separate pkg

Signed-off-by: Nicolás Pazos <[email protected]>

* update prometheus version for example

Signed-off-by: Nicolás Pazos <[email protected]>

* make proto

Signed-off-by: Nicolás Pazos <[email protected]>

* make Metadata not nullable

Signed-off-by: Nicolás Pazos <[email protected]>

* remove old MinSample proto message

Signed-off-by: Nicolás Pazos <[email protected]>

* change enum names to fit buf build recommend enum naming and lint rules

Signed-off-by: Callum Styan <[email protected]>

* remote: Added test for classic histogram grouping when sending rw; Fixed queue manager test delay. (#13421)

Signed-off-by: bwplotka <[email protected]>

* Remote write v2: metadata support in every write request (#13394)

* Approach bundling metadata along with samples and exemplars

Signed-off-by: Paschalis Tsilias <[email protected]>

* Add first test; rebase with main

Signed-off-by: Paschalis Tsilias <[email protected]>

* Alternative approach: bundle metadata in TimeSeries protobuf

Signed-off-by: Paschalis Tsilias <[email protected]>

* update go mod to match main branch

Signed-off-by: Callum Styan <[email protected]>

* fix after rebase

Signed-off-by: Callum Styan <[email protected]>

* we're not going to modify the 1.X format anymore

Signed-off-by: Callum Styan <[email protected]>

* Modify AppendMetadata based on the fact that we be putting metadata into
timeseries

Signed-off-by: Callum Styan <[email protected]>

* Rename enums for remote write versions to something that makes more
sense + remove the added `sendMetadata` flag.

Signed-off-by: Callum Styan <[email protected]>

* rename flag that enables writing of metadata records to the WAL

Signed-off-by: Callum Styan <[email protected]>

* additional clean up

Signed-off-by: Callum Styan <[email protected]>

* lint

Signed-off-by: Callum Styan <[email protected]>

* fix usage of require.Len

Signed-off-by: Callum Styan <[email protected]>

* some clean up from review comments

Signed-off-by: Callum Styan <[email protected]>

* more review fixes

Signed-off-by: Callum Styan <[email protected]>

---------

Signed-off-by: Paschalis Tsilias <[email protected]>
Signed-off-by: Callum Styan <[email protected]>
Co-authored-by: Paschalis Tsilias <[email protected]>

* 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 <[email protected]>

* tsdb: shrink txRing with smaller integers

4 billion active transactions ought to be enough for anyone.

Signed-off-by: Bryan Boreham <[email protected]>

* 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 <[email protected]>

* add cluster variable to Overview dashboard

Signed-off-by: Erik Sommer <[email protected]>

* promql: simplify Native Histogram arithmetics

Signed-off-by: Linas Medziunas <[email protected]>

* Cut 2.49.0-rc.0 (#13270)

* Cut 2.49.0-rc.0

Signed-off-by: bwplotka <[email protected]>

* Removed the duplicate.

Signed-off-by: bwplotka <[email protected]>

---------

Signed-off-by: bwplotka <[email protected]>

* Add unit protobuf parser

Signed-off-by: Arianna Vespri <[email protected]>

* Go on adding protobuf parsing for unit

Signed-off-by: Arianna Vespri <[email protected]>

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

Signed-off-by: machine424 <[email protected]>

* Get conditional right

Signed-off-by: Arianna Vespri <[email protected]>

* 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 <[email protected]>

* Cut v2.49.0-rc.1

Signed-off-by: bwplotka <[email protected]>

* Delete debugging lines, amend error message for unit

Signed-off-by: Arianna Vespri <[email protected]>

* Correct order in error message

Signed-off-by: Arianna Vespri <[email protected]>

* Consider storage.ErrTooOldSample as non-retryable

Signed-off-by: Daniel Kerbel <[email protected]>

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

Signed-off-by: machine424 <[email protected]>

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

Signed-off-by: Arianna Vespri <[email protected]>

* 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] <[email protected]>

* 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](https://github.com/actions/setup-node/compare/5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d...b39b52d1213e96004bfcb1c61a8a6fa8ab84f3e8)

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

Signed-off-by: dependabot[bot] <[email protected]>

* 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 <[email protected]>

* Fix DataTableProps['data'] for resultType string

Signed-off-by: Kevin Mingtarja <[email protected]>

* Fix handling of scalar and string in isHeatmapData

Signed-off-by: Kevin Mingtarja <[email protected]>

* 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] <[email protected]>

* 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] <[email protected]>

* Bump client_golang to v1.18.0 (#13373)

Signed-off-by: Paschalis Tsilias <[email protected]>

* Drop old inmemory samples (#13002)

* Drop old inmemory samples

Co-authored-by: Paschalis Tsilias <[email protected]>
Signed-off-by: Paschalis Tsilias <[email protected]>
Signed-off-by: Marc Tuduri <[email protected]>

* Avoid copying timeseries when the feature is disabled

Signed-off-by: Paschalis Tsilias <[email protected]>
Signed-off-by: Marc Tuduri <[email protected]>

* Run gofmt

Signed-off-by: Paschalis Tsilias <[email protected]>
Signed-off-by: Marc Tuduri <[email protected]>

* Clarify docs

Signed-off-by: Marc Tuduri <[email protected]>

* Add more logging info

Signed-off-by: Marc Tuduri <[email protected]>

* Remove loggers

Signed-off-by: Marc Tuduri <[email protected]>

* optimize function and add tests

Signed-off-by: Marc Tuduri <[email protected]>

* Simplify filter

Signed-off-by: Marc Tuduri <[email protected]>

* rename var

Signed-off-by: Marc Tuduri <[email protected]>

* Update help info from metrics

Signed-off-by: Marc Tuduri <[email protected]>

* use metrics to keep track of drop elements during buildWriteRequest

Signed-off-by: Marc Tuduri <[email protected]>

* rename var in tests

Signed-off-by: Marc Tuduri <[email protected]>

* pass time.Now as parameter

Signed-off-by: Marc Tuduri <[email protected]>

* Change buildwriterequest during retries

Signed-off-by: Marc Tuduri <[email protected]>

* Revert "Remove loggers"

This reverts commit 54f91dfcae20488944162335ab4ad8be459df1ab.

Signed-off-by: Marc Tuduri <[email protected]>

* use log level debug for loggers

Signed-off-by: Marc Tuduri <[email protected]>

* Fix linter

Signed-off-by: Paschalis Tsilias <[email protected]>

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

Signed-off-by: Paschalis Tsilias <[email protected]>

* Remove accidentally committed files

Signed-off-by: Paschalis Tsilias <[email protected]>

* Propagate logger to buildWriteRequest to log dropped data

Signed-off-by: Paschalis Tsilias <[email protected]>

* Fix docs comment

Signed-off-by: Paschalis Tsilias <[email protected]>

* Make drop reason more specific

Signed-off-by: Paschalis Tsilias <[email protected]>

* Remove unnecessary pass of logger

Signed-off-by: Paschalis Tsilias <[email protected]>

* Use snake_case for reason label

Signed-off-by: Paschalis Tsilias <[email protected]>

* Fix dropped samples metric

Signed-off-by: Paschalis Tsilias <[email protected]>

---------

Signed-off-by: Paschalis Tsilias <[email protected]>
Signed-off-by: Marc Tuduri <[email protected]>
Signed-off-by: Paschalis Tsilias <[email protected]>
Co-authored-by: Paschalis Tsilias <[email protected]>
Co-authored-by: Paschalis Tsilias <[email protected]>

* 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 <[email protected]>

* 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 <[email protected]>

* 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 <[email protected]>

* 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 <[email protected]>

---------

Signed-off-by: Giedrius Statkevičius <[email protected]>

* Cut 2.49.0-rc.2

Signed-off-by: bwplotka <[email protected]>

* 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](https://github.com/actions/setup-go/compare/6edd4406fa81c3da01a34fa6f6343087c207a568...0c52d547c9bc32b1aa3301fd7a9cb496313a4491)

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

Signed-off-by: dependabot[bot] <[email protected]>
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](https://github.com/github/codeql-action/compare/407ffafae6a767df3e0230c3df91b6443ae8df75...012739e5082ff0c22ca6d6ab32e07c36df03c4a4)

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

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

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

Signed-off-by: Augustin Husson <[email protected]>

* 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 <[email protected]>

---------

Signed-off-by: Jeanette Tan <[email protected]>

* included instance in all necessary descriptions

Signed-off-by: Erik Sommer <[email protected]>

* tsdb/compact: fix passing merge func

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

Signed-off-by: Giedrius Statkevičius <[email protected]>

* tsdb: add enable overlapping compaction

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

Upstreaming
https://github.com/grafana/mimir-prometheus/blob/7c8e9a2a76fc729e9078889782928b2fdfe240e9/tsdb/compact.go#L323-L325.

Signed-off-by: Giedrius Statkevičius <[email protected]>

* Cut 2.49.0

Signed-off-by: bwplotka <[email protected]>

* 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 <[email protected]>

* Fixed changelog

Signed-off-by: bwplotka <[email protected]>

* 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 <[email protected]>

* Issue #13268: fix quality value in accept header

Signed-off-by: Kumar Kalpadiptya Roy <[email protected]>

* Cut 2.49.1 with scrape q= bugfix.

Signed-off-by: bwplotka <[email protected]>

* Cut 2.49.1 web package.

Signed-off-by: bwplotka <[email protected]>

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

Restore more efficient version of NewPossibleNonCounterInfo annotation

Signed-off-by: Jeanette Tan <[email protected]>

---------

Signed-off-by: Jeanette Tan <[email protected]>

* Fix regressions introduced by #13242

Signed-off-by: Marco Pracucci <[email protected]>

* 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 <[email protected]>

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

Co-authored-by: Julien Pivotto <[email protected]>

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

Signed-off-by: machine424 <[email protected]>

* Examples: link to `rate` for new users (#10535)

* Examples: link to `rate` for new users

Signed-off-by: Ted Robertson [email protected]
Co-authored-by: Bryan Boreham <[email protected]>

* 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 <[email protected]>

* TestLabelValuesWithMatchers: Add test case

Signed-off-by: Arve Knudsen <[email protected]>

* remove  obsolete build tag

Signed-off-by: tyltr <[email protected]>

* Upgrade some golang dependencies for resty 2.11

Signed-off-by: Israel Blancas <[email protected]>

* 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 <[email protected]>
Signed-off-by: Björn Rabenstein <[email protected]>
Co-authored-by: George Krajcsovits <[email protected]>
Co-authored-by: Björn Rabenstein <[email protected]>

* 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 <[email protected]>

* Minor fixes to otlp vendor update script

Signed-off-by: Goutham <[email protected]>

* 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] <[email protected]>

* 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 <[email protected]>

* Removed blank spaces

Signed-off-by: Rewanth Tammana <[email protected]>

* Fixed linting error

Signed-off-by: Rewanth Tammana <[email protected]>

* Added cli flags to documentation

Signed-off-by: Rewanth Tammana <[email protected]>

* Revert unrrelated linting fixes

Signed-off-by: Rewanth Tammana <[email protected]>

* Fixed review suggestions

Signed-off-by: Rewanth Tammana <[email protected]>

* Cleanup

Signed-off-by: Rewanth Tammana <[email protected]>

* Updated flag description

Signed-off-by: Rewanth Tammana <[email protected]>

* Updated flag description

Signed-off-by: Rewanth Tammana <[email protected]>

---------

Signed-off-by: Rewanth Tammana <[email protected]>

* 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 <[email protected]>

* 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 <[email protected]>

* add more context cancellation check at evaluation time

Signed-off-by: Ben Ye <[email protected]>

* 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 <[email protected]>

* 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 <[email protected]>

* Update OSSF badge link (#13433)

Provide a more user friendly interface

Signed-off-by: Matthieu MOREL <[email protected]>

* 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 <[email protected]>
Signed-off-by: Björn Rabenstein <[email protected]>
Co-authored-by: Björn Rabenstein <[email protected]>

* 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 <[email protected]>
Co-authored-by: George Krajcsovits <[email protected]>

* 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 <[email protected]>

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

Signed-off-by: Paulin Todev <[email protected]>

* mirror metrics.proto change & generate code

Signed-off-by: Ziqi Zhao <[email protected]>

* 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 <[email protected]>

* update all go dependencies (#13438)

Signed-off-by: Augustin Husson <[email protected]>

* 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] <[email protected]>
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] <[email protected]>
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](https://github.com/actions/upload-artifact/compare/a8a3f3ad30e3422c9c7b888a15615d19a852ae32...c7d193f32edcb7bfad88892161225aeda64e9392)

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

Signed-off-by: dependabot[bot] <[email protected]>
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](https://github.com/bufbuild/buf-push-action/compare/342fc4cdcf29115a01cf12a2c6dd6aac68dc51e1...a654ff18effe4641ebea4a4ce242c49800728459)

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

Signed-off-by: dependabot[bot] <[email protected]>
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 <[email protected]>

* 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 <[email protected]>

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

Signed-off-by: Arve Knudsen <[email protected]>

* 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 <[email protected]>

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

Signed-off-by: Arve Knudsen <[email protected]>

* 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 <[email protected]>

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

Signed-off-by: Yury Moladau <[email protected]>

* 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 <[email protected]>

* 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 <[email protected]>

* Implementation

NOTE:
Rebased from main after refactor in #13014

Signed-off-by: Danny Kopping <[email protected]>

* Add feature flag

Signed-off-by: Danny Kopping <[email protected]>

* Refactor concurrency control

Signed-off-by: Danny Kopping <[email protected]>

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

Signed-off-by: Danny Kopping <[email protected]>

* Refactoring

Signed-off-by: Danny Kopping <[email protected]>

* Rename flag

Signed-off-by: Danny Kopping <[email protected]>

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

Signed-off-by: Danny Kopping <[email protected]>

* 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 <[email protected]>

* Fix typo in CLI flag description

Signed-off-by: Marco Pracucci <[email protected]>

* Fixed auto-generated doc

Signed-off-by: Marco Pracucci <[email protected]>

* Improve doc

Signed-off-by: Marco Pracucci <[email protected]>

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

Signed-off-by: Marco Pracucci <[email protected]>

* Add more test cases to TestDependenciesEdgeCases

Signed-off-by: Marco Pracucci <[email protected]>

* Added more test cases to TestDependenciesEdgeCases

Signed-off-by: Marco Pracucci <[email protected]>

* Improved RuleConcurrencyController interface doc

Signed-off-by: Marco Pracucci <[email protected]>

* Introduced sequentialRuleEvalController

Signed-off-by: Marco Pracucci <[email protected]>

* Remove superfluous nil check in Group.metrics

Signed-off-by: Marco Pracucci <[email protected]>

* 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 <[email protected]>

* 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 <[email protected]>

* 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 <[email protected]>

* 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 <[email protected]>

* 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 <[email protected]>
Co-authored-by: Guillermo Sanchez Gavier <[email protected]>

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

Signed-off-by: Mikhail Fesenko <[email protected]>
Signed-off-by: Jesus Vazquez <[email protected]>

* 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 <[email protected]>

* lint

Signed-off-by: Nicolás Pazos <[email protected]>

* go mod tidy

Signed-off-by: Nicolás Pazos <[email protected]>

---------

Signed-off-by: Julian Wiedmann <[email protected]>
Signed-off-by: Bryan Boreham <[email protected]>
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* 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 <[email protected]>

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

Signed-off-by: Callum Styan <[email protected]>

* address review comments, mostly lint fixes

Signed-off-by: Callum Styan <[email protected]>

* another lint fix

Signed-off-by: Callum Styan <[email protected]>

* lint imports

Signed-off-by: Callum Styan <[email protected]>

---------

Signed-off-by: Callum Styan <[email protected]>

* go mod tidy

Signed-off-by: Nicolás Pazos <[email protected]>

* Added commmentary to RW 2.0 protocol for easier adoption and explicit semantics. (#13502)

* Added commmentary to RW 2.0 protocol for easier adoption and explicit semantics.

Signed-off-by: bwplotka <[email protected]>

* Apply suggestions from code review

Co-authored-by: Nico Pazos <[email protected]>
Signed-off-by: Callum Styan <[email protected]>

---------

Signed-off-by: bwplotka <[email protected]>
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* prw2.0: Added support for "custom" layouts for native histogram proto (#13558)

* prw2.0: Added support for "custom" layouts for native histogram.

Result of the discussions:
* https://github.com/prometheus/prometheus/issues/13475#issuecomment-1931496924
* https://cloud-native.slack.com/archives/C02KR205UMU/p1707301006347199

Signed-off-by: bwplotka <[email protected]>

* prw2.0: Added support for "custom" layouts for native histogram.

Result of the discussions:
* https://github.com/prometheus/prometheus/issues/13475#issuecomment-1931496924
* https://cloud-native.slack.com/archives/C02KR205UMU/p1707301006347199

Signed-off-by: bwplotka <[email protected]>

# Conflicts:
#	prompb/write/v2/types.pb.go

* Update prompb/write/v2/types.proto

Co-authored-by: George Krajcsovits <[email protected]>
Signed-off-by: Bartlomiej Plotka <[email protected]>

* Addressed comments, fixed test.

Signed-off-by: bwplotka <[email protected]>

---------

Signed-off-by: bwplotka <[email protected]>
Signed-off-by: Bartlomiej Plotka <[email protected]>
Co-authored-by: George Krajcsovits <[email protected]>

* first draft of content negotiation

Signed-off-by: Alex Greenbank <[email protected]>

* Lint

Signed-off-by: Alex Greenbank <[email protected]>

* Fix race in test

Signed-off-by: Alex Greenbank <[email protected]>

* Fix another test race

Signed-off-by: Alex Greenbank <[email protected]>

* Almost done with lint

Signed-off-by: Alex Greenbank <[email protected]>

* Fix todos around 405 HEAD handling

Signed-off-by: Alex Greenbank <[email protected]>

* Changes based on review comments

Signed-off-by: Alex Greenbank <[email protected]>

* Update storage/remote/client.go

Co-authored-by: Bartlomiej Plotka <[email protected]>
Signed-off-by: Alex Greenbank <[email protected]>

* Latest updates to review comments

Signed-off-by: Alex Greenbank <[email protected]>

* latest tweaks

Signed-off-by: Alex Greenbank <[email protected]>

* remote write 2.0 - content negotiation remediation (#13921)

* Consolidate renegotiation error into one, fix tests

Signed-off-by: Alex Greenbank <[email protected]>

* fix metric name and actuall increment counter

Signed-off-by: Alex Greenbank <[email protected]>

---------

Signed-off-by: Alex Greenbank <[email protected]>

* Fixes after main sync.

Signed-off-by: bwplotka <[email protected]>

* [PRW 2.0] Moved rw2 proto to the full path (both package name and placement) (#13973)

undefined

* [PRW2.0] Remove benchmark scripts (#13949)

See rationales on https://docs.google.com/document/d/1Bpf7mYjrHUhPHkie0qlnZFxzgqf_L32kM8ZOknSdJrU/edit

Signed-off-by: bwplotka <[email protected]>

* rw20: Update prw commentary after Callum spec review (#14136)

* rw20: Update prw commentary after Callum spec review

Signed-off-by: Bartlomiej Plotka <[email protected]>

* Update types.proto

Signed-off-by: Bartlomiej Plotka <[email protected]>

---------

Signed-off-by: Bartlomiej Plotka <[email protected]>

* [PRW 2.0] Updated spec proto (2.0-rc.1); deterministic v1 interop; to be sympathetic with implementation. (#14330)

* [PRW 2.0] Updated spec proto (2.0-rc.1); deterministic v1 interop; to be sympathetic with implementation.

Signed-off-by: bwplotka <[email protected]>

* update custom marshalling

Signed-off-by: bwplotka <[email protected]>

* Removed confusing comments.

Signed-off-by: bwplotka <[email protected]>

---------

Signed-off-by: bwplotka <[email protected]>

* [PRW-2.0] (chain1) New Remote Write 2.0 Config options for 2.0-rc.1 spec. (#14335)

NOTE: For simple review this change does not touch remote/ packages, only main and configs.

Spec: https://prometheus.io/docs/specs/remote_write_spec_2_0

Supersedes https://github.com/prometheus/prometheus/pull/13968

Signed-off-by: bwplotka <[email protected]>

* [PRW-2.0] (part 2) Removed automatic negotiation, updates for the latest spec semantics in remote pkg (#14329)

* [PRW-2.0] (part2) Moved to latest basic negotiation & spec semantics.

Spec: https://github.com/prometheus/docs/pull/2462

Supersedes https://github.com/prometheus/prometheus/pull/13968

Signed-off-by: bwplotka <[email protected]>

# Conflicts:
#	config/config.go
#	docs/configuration/configuration.md
#	storage/remote/queue_manager_test.go
#	storage/remote/write.go
#	web/api/v1/api.go

* Addressed comments.

Signed-off-by: bwplotka <[email protected]>

---------

Signed-off-by: bwplotka <[email protected]>

* lint

Signed-off-by: Nicolás Pazos <[email protected]>

* storage/remote tests: refactor: extract function newTestQueueManager

To reduce repetition.

Signed-off-by: Bryan Boreham <[email protected]>
Signed-off-by: Nicolás Pazos <[email protected]>

* use newTestQueueManager for test

Signed-off-by: Nicolás Pazos <[email protected]>

* go mod tidy

Signed-off-by: Nicolás Pazos <[email protected]>

* [PRW 2.0] (part3) moved type specific conversions to prompb and writev2 codecs.

Signed-off-by: bwplotka <[email protected]>

* Added test for rwProtoMsgFlagParser; fixed TODO comment.

Signed-off-by: bwplotka <[email protected]>

* Renamed DecodeV2WriteRequestStr to DecodeWriteV2Request (with tests).

Signed-off-by: bwplotka <[email protected]>

* Addressed comments on remote_storage example, updated it for 2.0

Signed-off-by: bwplotka <[email protected]>

* Fixed `--enable-feature=metadata-wal-records` docs and error when using PRW 2.0 without it.

Signed-off-by: bwplotka <[email protected]>

* Addressed Callum comments on custom*.go

Signed-off-by: bwplotka <[email protected]>

* Added TODO to genproto.

Signed-off-by: bwplotka <[email protected]>

* Addressed Callum comments in remote pkg.

Signed-off-by: bwplotka <[email protected]>

* Added metadata validation to write handler test; fixed ToMetadata.

Signed-off-by: bwplotka <[email protected]>

* Addressed rest of Callum comments.

Signed-off-by: bwplotka <[email protected]>

* Fixed writev2.FromMetadataType (was wrongly using prompb).

Signed-off-by: bwplotka <[email protected]>

* fix a few import whitespaces

Signed-off-by: Callum Styan <[email protected]>

* add a default case with an error to the example RW receiver

Signed-off-by: Callum Styan <[email protected]>

* more minor import whitespace chagnes

Signed-off-by: Callum Styan <[email protected]>

* Apply suggestions from code review

Signed-off-by: Bartlomiej Plotka <[email protected]>

* Update storage/remote/queue_manager_test.go

Signed-off-by: Bartlomiej Plotka <[email protected]>

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