Commit graph

102 commits

Author SHA1 Message Date
Ganesh Vernekar 26c0a433f5
Support appending different sample types to the same series (#9705)
* Support appending different sample types to the same series

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Fix comments

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Fix build

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
2021-11-26 17:43:27 +05:30
beorn7 5d4db805ac Merge branch 'main' into sparsehistogram 2021-11-17 19:57:31 +01:00
Dieter Plaetinck 067efc3725
clarify HeadChunkID type and usage (#9726)
Signed-off-by: Dieter Plaetinck <dieter@grafana.com>
Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>

Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>
2021-11-17 18:35:10 +05:30
beorn7 4c28d9fac7 Move to histogram.Histogram pointers
This is to avoid copying the many fields of a histogram.Histogram all
the time.

This also fixes a bunch of formerly broken tests.

Signed-off-by: beorn7 <beorn@grafana.com>
2021-11-12 23:17:35 +01:00
beorn7 c954cd9d1d Move packages out of deprecated pkg directory
This creates a new `model` directory and moves all data-model related
packages over there:
  exemplar labels relabel rulefmt textparse timestamp value

All the others are more or less utilities and have been moved to `util`:
  gate logging modetimevfs pool runtime

Signed-off-by: beorn7 <beorn@grafana.com>
2021-11-09 08:03:10 +01:00
Dieter Plaetinck cda025b5b5
TSDB: demistify SeriesRefs and ChunkRefs (#9536)
* TSDB: demistify seriesRefs and ChunkRefs

The TSDB package contains many types of series and chunk references,
all shrouded in uint types.  Often the same uint value may
actually mean one of different types, in non-obvious ways.

This PR aims to clarify the code and help navigating to relevant docs,
usage, etc much quicker.

Concretely:

* Use appropriately named types and document their semantics and
  relations.
* Make multiplexing and demuxing of types explicit
  (on the boundaries between concrete implementations and generic
  interfaces).
* Casting between different types should be free.  None of the changes
  should have any impact on how the code runs.

TODO: Implement BlockSeriesRef where appropriate (for a future PR)

Signed-off-by: Dieter Plaetinck <dieter@grafana.com>

* feedback

Signed-off-by: Dieter Plaetinck <dieter@grafana.com>

* agent: demistify seriesRefs and ChunkRefs

Signed-off-by: Dieter Plaetinck <dieter@grafana.com>
2021-11-06 15:40:04 +05:30
Ganesh Vernekar c8b267efd6
Get histograms from TSDB to the rate() function implementation
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
2021-11-03 19:04:18 +05:30
Mateusz Gozdek 1a6c2283a3 Format Go source files using 'gofumpt -w -s -extra'
Part of #9557

Signed-off-by: Mateusz Gozdek <mgozdekof@gmail.com>
2021-11-02 19:52:34 +01:00
Xiaochao Dong c2d1c85857
close tsdb.head in test case (#9580)
Signed-off-by: Xiaochao Dong (@damnever) <the.xcdong@gmail.com>
2021-10-26 11:36:25 +05:30
beorn7 a9008f5423 Merge branch 'main' into sparsehistogram 2021-10-19 17:14:23 +02:00
Dieter Plaetinck d5afe0a577
TSDB: Use a dedicated head chunk reference type (#9501)
* Use dedicated Ref type

Throughout the code base, there are reference types masked as
regular integers.  Let's use dedicated types.  They are
equivalent, but clearer semantically.
This also makes it trivial to find where they are used,
and from uses, find the centralized docs.

Signed-off-by: Dieter Plaetinck <dieter@grafana.com>

* postpone some work until after possible return

Signed-off-by: Dieter Plaetinck <dieter@grafana.com>

* clarify

Signed-off-by: Dieter Plaetinck <dieter@grafana.com>

* rename feedback

Signed-off-by: Dieter Plaetinck <dieter@grafana.com>

* skip header is up to caller

Signed-off-by: Dieter Plaetinck <dieter@grafana.com>
2021-10-13 17:44:32 +05:30
Ganesh Vernekar 85e6686f84
Add unit test for counter reset header
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
2021-10-13 15:57:42 +05:30
beorn7 7a8bb8222c Style cleanup of all the changes in sparsehistogram so far
A lot of this code was hacked together, literally during a
hackathon. This commit intends not to change the code substantially,
but just make the code obey the usual style practices.

A (possibly incomplete) list of areas:

* Generally address linter warnings.

* The `pgk` directory is deprecated as per dev-summit. No new packages should
  be added to it. I moved the new `pkg/histogram` package to `model`
  anticipating what's proposed in #9478.

* Make the naming of the Sparse Histogram more consistent. Including
  abbreviations, there were just too many names for it: SparseHistogram,
  Histogram, Histo, hist, his, shs, h. The idea is to call it "Histogram" in
  general. Only add "Sparse" if it is needed to avoid confusion with
  conventional Histograms (which is rare because the TSDB really has no notion
  of conventional Histograms). Use abbreviations only in local scope, and then
  really abbreviate (not just removing three out of seven letters like in
  "Histo"). This is in the spirit of
  https://github.com/golang/go/wiki/CodeReviewComments#variable-names

* Several other minor name changes.

* A lot of formatting of doc comments. For one, following
  https://github.com/golang/go/wiki/CodeReviewComments#comment-sentences
  , but also layout question, anticipating how things will look like
  when rendered by `godoc` (even where `godoc` doesn't render them
  right now because they are for unexported types or not a doc comment
  at all but just a normal code comment - consistency is queen!).

* Re-enabled `TestQueryLog` and `TestEndopints` (they pass now,
  leaving them disabled was presumably an oversight).

* Bucket iterator for histogram.Histogram is now created with a
  method.

* HistogramChunk.iterator now allows iterator recycling. (I think
  @dieterbe only commented it out because he was confused by the
  question in the comment.)

* HistogramAppender.Append panics now because we decided to treat
  staleness marker differently.

Signed-off-by: beorn7 <beorn@grafana.com>
2021-10-11 13:02:03 +02:00
beorn7 fd5ea4e0b5 Merge branch 'main' into sparsehistogram 2021-10-07 23:16:42 +02:00
Ganesh Vernekar 10bc6e80ee
Fix panic on failed snapshot replay and don't hard fail replay on disabled exemplars (#9438)
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
2021-10-05 10:51:25 +05:30
Ganesh Vernekar 1dd22ed655
Support stale samples for sparse histograms (#9352)
* Support stale samples for sparse histograms

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Don't cut a new chunk for every stale sample

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Update comments for HistoAppender.Appendable

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Fix review comments

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
2021-10-01 13:41:51 +05:30
Ganesh Vernekar 30534e99d9
Take snapshot only after closing the WAL (#9328)
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
2021-09-13 18:30:41 +05:30
Ganesh Vernekar 8944520ccc
Fix deletion of old snapshots (#9314)
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
2021-09-08 19:53:44 +05:30
Bryan Boreham 2327236bb5
Decrement active_appenders metric when no samples added (#9230)
* Decrement active_appenders metric when no samples added

Also add a test that the metric is incremented and decremented as
expected with and without samples.

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

* Fix comment

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

Co-authored-by: Ganesh Vernekar <ganeshvern@gmail.com>
2021-09-08 14:49:58 +05:30
Bryan Boreham 87d909df4a
Remove symbols map from TSDB head (#9301)
This saves memory, effort and locking.

Since every symbol is also added to postings, `Symbols()` can be
implemented there instead. This now has to build a map for
deduplication, but `Symbols()` is only called for compaction, and `gc()`
used to rebuild the symbols map after every compaction so not an
additional cost.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2021-09-08 14:48:48 +05:30
Ganesh Vernekar 1315d8ecb6
Remove query hacks in the API and fix metrics (#9275)
* Remove query hacks in the API and fix metrics

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Tests for the metrics

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Better way to count series on restart

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
2021-08-31 17:01:19 +05:30
Ganesh Vernekar 35b1a82594
Exemplars in snapshot (#9255)
* Exemplars in snapshot

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Fix lint

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Add docs

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Fix lint

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Fix comments

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
2021-08-30 19:34:38 +05:30
Ganesh Vernekar 328a74ca36
Fix bugs and add enhancements to the chunk snapshot (#9185)
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
2021-08-17 18:08:16 +01:00
Ganesh Vernekar f0688c21d6
Log sparse histograms into WAL and replay from it (#9191)
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
2021-08-11 17:38:48 +05:30
Ganesh Vernekar 095f572d4a
Sync sparsehistogram branch with main (#9189)
* Fix `kuma_sd` targetgroup reporting (#9157)

* Bundle all xDS targets into a single group

Signed-off-by: austin ce <austin.cawley@gmail.com>

* Snapshot in-memory chunks on shutdown for faster restarts (#7229)

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Rename links

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Remove Individual Data Type Caps in Per-shard Buffering for Remote Write (#8921)

* Moved everything to nPending buffer

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Simplify exemplar capacity addition

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Added pre-allocation

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Don't allocate if not sending exemplars

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Avoid deadlock when processing duplicate series record (#9170)

* Avoid deadlock when processing duplicate series record

`processWALSamples()` needs to be able to send on its output channel
before it can read the input channel, so reads to allow this in case the
output channel is full.

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

* processWALSamples: update comment

Previous text seems to relate to an earlier implementation.

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

* Optimise WAL loading by removing extra map and caching min-time (#9160)

* BenchmarkLoadWAL: close WAL after use

So that goroutines are stopped and resources released

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

* BenchmarkLoadWAL: make series IDs co-prime with #workers

Series are distributed across workers by taking the modulus of the
ID with the number of workers, so multiples of 100 are a poor choice.

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

* BenchmarkLoadWAL: simulate mmapped chunks

Real Prometheus cuts chunks every 120 samples, then skips those samples
when re-reading the WAL. Simulate this by creating a single mapped chunk
for each series, since the max time is all the reader looks at.

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

* Fix comment

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

* Remove series map from processWALSamples()

The locks that is commented to reduce contention in are now sharded
32,000 ways, so won't be contended. Removing the map saves memory and
goes just as fast.

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

* loadWAL: Cache the last mmapped chunk time

So we can skip calling append() for samples it will reject.

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

* Improvements from code review

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

* Full stops and capitals on comments

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

* Cache max time in both places mmappedChunks is updated

Including refactor to extract function `setMMappedChunks`, to reduce
code duplication.

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

* Update head min/max time when mmapped chunks added

This ensures we have the correct values if no WAL samples are added for
that series.

Note that `mSeries.maxTime()` was always `math.MinInt64` before, since
that function doesn't consider mmapped chunks.

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

* Split Go and React Tests (#8897)

* Added go-ci and react-ci

Co-authored-by: Julien Pivotto <roidelapluie@inuits.eu>
Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Remove search keymap from new expression editor (#9184)

Signed-off-by: Julius Volz <julius.volz@gmail.com>

Co-authored-by: Austin Cawley-Edwards <austin.cawley@gmail.com>
Co-authored-by: Levi Harrison <git@leviharrison.dev>
Co-authored-by: Julien Pivotto <roidelapluie@inuits.eu>
Co-authored-by: Bryan Boreham <bjboreham@gmail.com>
Co-authored-by: Julius Volz <julius.volz@gmail.com>
2021-08-11 15:43:17 +05:30
Bryan Boreham 040ef175eb
Optimise WAL loading by removing extra map and caching min-time (#9160)
* BenchmarkLoadWAL: close WAL after use

So that goroutines are stopped and resources released

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

* BenchmarkLoadWAL: make series IDs co-prime with #workers

Series are distributed across workers by taking the modulus of the
ID with the number of workers, so multiples of 100 are a poor choice.

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

* BenchmarkLoadWAL: simulate mmapped chunks

Real Prometheus cuts chunks every 120 samples, then skips those samples
when re-reading the WAL. Simulate this by creating a single mapped chunk
for each series, since the max time is all the reader looks at.

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

* Fix comment

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

* Remove series map from processWALSamples()

The locks that is commented to reduce contention in are now sharded
32,000 ways, so won't be contended. Removing the map saves memory and
goes just as fast.

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

* loadWAL: Cache the last mmapped chunk time

So we can skip calling append() for samples it will reject.

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

* Improvements from code review

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

* Full stops and capitals on comments

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

* Cache max time in both places mmappedChunks is updated

Including refactor to extract function `setMMappedChunks`, to reduce
code duplication.

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

* Update head min/max time when mmapped chunks added

This ensures we have the correct values if no WAL samples are added for
that series.

Note that `mSeries.maxTime()` was always `math.MinInt64` before, since
that function doesn't consider mmapped chunks.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2021-08-10 14:53:31 +05:30
Ganesh Vernekar ee7e0071d1
Snapshot in-memory chunks on shutdown for faster restarts (#7229)
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
2021-08-06 17:51:01 +01:00
Ganesh Vernekar 8b70e87ab9
Merge remote-tracking branch 'upstream/main' into sparse-refactor
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
2021-08-05 12:16:08 +05:30
Ganesh Vernekar 848cb5a6d6
Enhanced WAL replay for duplicate series record (#7438)
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
2021-08-03 20:03:54 +05:30
Oleg Zaytsev b1ed4a0a66
LabelNames API with matchers (#9083)
* Push the matchers for LabelNames all the way into the index.

NB This doesn't actually implement it in the index, just plumbs it through for now...

Signed-off-by: Tom Wilkie <tom@grafana.com>

* Hack it up.  Does not work.

Signed-off-by: Tom Wilkie <tom@grafana.com>

* Revert changes I don't understand

Can't see why do we need to hold a mutex on symbols, and the purpose of
the LabelNamesFor method.

Maybe I'll need to re-add this later.

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

* Implement LabelNamesFor

This method provides the label names that appear in the postings
provided. We do that deeper than the label values because we know
beforehand that most of the label names we'll be the same across
different postings, and we don't want to go down an up looking up the
same symbols for all different series.

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

* Mutex on symbols should be unlocked

However, I still don't understand why do we need a mutex here.

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

* Fix head.LabelNamesFor

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

* Implement mockIndex LabelNames with matchers

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

* Nitpick on slice initialisation

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

* Add tests for LabelNamesWithMatchers

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

* Fix the mutex mess on head.LabelValues/LabelNames

I still don't see why we need to grab that unrelated mutex, but at least
now we're grabbing it consistently

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

* Check error after iterating postings

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

* Use the error from posting when there was en error in postings

Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>
Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>

* Update storage/interface.go comment

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

Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>

* Update tsdb/index/index.go comment

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

Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>

* Update tsdb/index/index.go wrapped error msg

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

Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>

* Update tsdb/index/index.go wrapped error msg

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

Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>

* Update tsdb/index/index.go warpped error msg

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

Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>

* Remove unneeded comment

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

* Add testcases for LabelNames w/matchers in api.go

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

* Use t.Cleanup() instead of defer in tests

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

Co-authored-by: Tom Wilkie <tom@grafana.com>
Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>
2021-07-20 18:08:08 +05:30
Ganesh Vernekar 59d02b5ef0
tsdb: Block Head GC till pending readers are done reading (#9081)
* tsdb: Block Head GC till pending readers are done reading

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Fix review comments

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Fix review comments 2

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Fix the exclusiveness of maxt in WaitForPendingReadersInTimeRange

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
2021-07-20 14:17:20 +05:30
Martin Disibio 1bcd13d6b5
Exemplar resize (#8974)
* Create experimental circular buffer resize method, benchmarks

Signed-off-by: Martin Disibio <mdisibio@gmail.com>

* Optimize exemplar resize to only replay as many exemplars as needed

Signed-off-by: Martin Disibio <mdisibio@gmail.com>

* More comments, benchmark AddExemplar

Signed-off-by: Martin Disibio <mdisibio@gmail.com>

* optimizations

Signed-off-by: Martin Disibio <mdisibio@gmail.com>

* comment

Signed-off-by: Martin Disibio <mdisibio@gmail.com>

* Slight refactor of resize benchmark + make use of resize via runtime
reloadable storage config.

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

* Some more config related changes.

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

* Address some review comments.

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

* Address more review comments.

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

* Refactor to remove usage of noopExemplarStorage and avoid race condition
when resizing from Head code.

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

* Fix or add comments to clarify some of the new behaviour.

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

* fix potential panics related to negative exemplar buffer lengths

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

Co-authored-by: Callum Styan <callumstyan@gmail.com>
2021-07-20 10:22:57 +05:30
Ganesh Vernekar 67871fd1f2
Support compaction of Head block for histograms (#9044)
* Update querier.go to support Head compaction with histograms

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Add test for Head compaction with histograms

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>

* Fix tests

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
2021-07-04 16:12:37 +05:30
Ganesh Vernekar f4d3af73f0
Query histograms from TSDB and unit test for append+query (#9022)
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
2021-06-30 20:18:13 +05:30
Levi Harrison 7bc11dcb06
React UI: Add Starting Screen (#8662)
* Added walreplay API endpoint

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Added starting page to react-ui

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Documented the new endpoint

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Fixed typos

Signed-off-by: Levi Harrison <git@leviharrison.dev>

Co-authored-by: Julius Volz <julius.volz@gmail.com>

* Removed logo

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Changed isResponding to isUnexpected

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Changed width of progress bar

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Changed width of progress bar

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Added DB stats object

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Updated starting page to work with new fields

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Passing nil

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Passing nil (pt. 2)

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Passing nil (pt. 3)

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Passing nil (and also implementing a method this time) (pt. 4)

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Passing nil (and also implementing a method this time) (pt. 5)

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Changed const to let

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Passing nil (pt. 6)

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Remove SetStats method

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Added comma

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Changed api

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Changed to triple equals

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Fixed data response types

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Don't return pointer

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Changed version

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Fixed interface issue

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Fixed pointer

Signed-off-by: Levi Harrison <git@leviharrison.dev>

* Fixed copying lock value error

Signed-off-by: Levi Harrison <git@leviharrison.dev>

Co-authored-by: Julius Volz <julius.volz@gmail.com>
2021-06-05 15:29:32 +01:00
kjinan 24869ff2d0 typos correct
Signed-off-by: kjinan <2008kongxiangsheng@163.com>
2021-05-14 09:34:44 +08:00
Callum Styan 8fd73b1d28
Add Exemplar Remote Write support (#8296)
* Write exemplars to the WAL and send them over remote write.

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

* Update example for exemplars, print data in a more obvious format.

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

* Add metrics for remote write of exemplars.

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

* Fix incorrect slices passed to send in remote write.

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

* We need to unregister the new metrics.

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

* Address review comments

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

* Order of exemplar append vs write exemplar to WAL needs to change.

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

* Several fixes to prevent sending uninitialized or incorrect samples with an exemplar. Fix dropping exemplar for missing series. Add tests for queue_manager sending exemplars

Signed-off-by: Martin Disibio <mdisibio@gmail.com>

* Store both samples and exemplars in the same timeseries buffer to remove the alloc when building final request, keep sub-slices in separate buffers for re-use

Signed-off-by: Martin Disibio <mdisibio@gmail.com>

* Condense sample/exemplar delivery tests to parameterized sub-tests

Signed-off-by: Martin Disibio <mdisibio@gmail.com>

* Rename test methods for clarity now that they also handle exemplars

Signed-off-by: Martin Disibio <mdisibio@gmail.com>

* Rename counter variable. Fix instances where metrics were not updated correctly

Signed-off-by: Martin Disibio <mdisibio@gmail.com>

* Add exemplars to LoadWAL benchmark

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

* last exemplars timestamp metric needs to convert value to seconds with
ms precision

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

* Process exemplar records in a separate go routine when loading the WAL.

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

* Address review comments related to clarifying comments and variable
names. Also refactor sample/exemplar to enqueue prompb types.

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

* Regenerate types proto with comments, update protoc version again.

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

* Put remote write of exemplars behind a feature flag.

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

* Address some of Ganesh's review comments.

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

* Move exemplar remote write feature flag to a config file field.

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

* Address Bartek's review comments.

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

* Don't allocate exemplar buffers in queue_manager if we're not going to
send exemplars over remote write.

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

* Add ValidateExemplar function, validate exemplars when appending to head
and log them all to WAL before adding them to exemplar storage.

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

* Address more reivew comments from Ganesh.

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

* Add exemplar total label length check.

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

* Address a few last review comments

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

Co-authored-by: Martin Disibio <mdisibio@gmail.com>
2021-05-06 13:53:52 -07:00
Fiona Liao 9b83d8330a
Fix memSafeIterator.Seek() (#8748)
* Add range query test cases

This includes a couple of failing ones that double count some points due
to the iterator seek bug.

Co-authored-by: Oleg Zaytsev <mail@olegzaytsev.com>
Signed-off-by: Fiona Liao <fiona.y.liao@gmail.com>

* Add Seek() implementation for memSafeIterator

Previously, calling memSafeIterator.Seek() would call the Seek() method
on its embedded iterator. This was causing the embedded iterator and the
memSafeIterator to get out of sync because when the embedded Seek()
moved to the next element of the embedded iterator, memSafeIterator
didn't "know" about it. memSafeIterator has to "know" when the embedded
iterator has moved to be able to work out when it should be reading from
its buffer rather than the embedded iterator.

Used same logic as for xorIterator.Seek() (which in runtime is used as
the embedded iterator) - return false if the iterator has an error and
try to move to next element if the required time hasn't been reached, or
if no elements have been read yet. The memSafeIterator.Next() method is
being called so memSafeIterator.i is always accurate.

Signed-off-by: Fiona Liao <fiona.y.liao@gmail.com>

* Add tsdb package test

Signed-off-by: Fiona Liao <fiona.y.liao@gmail.com>

Co-authored-by: Oleg Zaytsev <mail@olegzaytsev.com>
2021-04-27 00:43:22 +02:00
Callum Styan 289ba11b79
Add circular in-memory exemplars storage (#6635)
* Add circular in-memory exemplars storage

Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>
Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>
Signed-off-by: Martin Disibio <mdisibio@gmail.com>

Co-authored-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>
Co-authored-by: Tom Wilkie <tom.wilkie@gmail.com>
Co-authored-by: Martin Disibio <mdisibio@gmail.com>

* Fix some comments, clean up exemplar metrics struct and exemplar tests.

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

* Fix exemplar query api null vs empty array issue.

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

Co-authored-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>
Co-authored-by: Tom Wilkie <tom.wilkie@gmail.com>
Co-authored-by: Martin Disibio <mdisibio@gmail.com>
2021-03-16 15:17:45 +05:30
Tom Wilkie 7369561305
Combine Appender.Add and AddFast into a single Append method. (#8489)
This moves the label lookup into TSDB, whilst still keeping the cached-ref optimisation for repeated Appends.

This makes the API easier to consume and implement.  In particular this change is motivated by the scrape-time-aggregation work, which I don't think is possible to implement without it as it needs access to label values.

Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>
2021-02-18 17:37:00 +05:30
Mauro Stettler 7715fe3219
Add matchers to LabelValues() call (#8400)
* Accept matchers in querier LabelValues()

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* create matcher to only select metrics which have searched label

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* test case for merge querier with matchers

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* test LabelValues with matchers on head

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* add test for LabelValues on block

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* formatting fix

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* Add comments

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* add missing lock release

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* remove unused parameter

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* Benchmarks for LabelValues() methods on block/head

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* Better comment

Co-authored-by: Julien Pivotto <roidelapluie@gmail.com>
Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* update comment

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* minor refactor make code cleaner

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* better comments

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* fix expected errors in test

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* Deleting parameter which can only be empty

Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>
Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* fix comments

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* remove unnecessary lock

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* only lookup label value if label name was looked up

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* Return error when there is one

Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>
Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* Call .Get() on decoder before checking errors

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* only lock head.symMtx when necessary

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* remove unnecessary delete()

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* re-use code instead of duplicating it

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* Consistently return error from LabelValueFor()

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* move helper func from util.go to querier.go

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* Fix test expectation

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>

* ensure result de-duplication and sorting works

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

* return named error from LabelValueFor()

Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com>

Co-authored-by: Julien Pivotto <roidelapluie@gmail.com>
Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>
2021-02-09 23:08:35 +05:30
Dustin Hooten b9f0baf6ff
Combine NewHead() args into a HeadOptions struct (#8452)
* Combine NewHead() args into a HeadOptions struct

Signed-off-by: Dustin Hooten <dustinhooten@gmail.com>

* remove overrides params

Signed-off-by: Dustin Hooten <dustinhooten@gmail.com>

* address pr feedback

Signed-off-by: Dustin Hooten <dustinhooten@gmail.com>
2021-02-09 19:42:48 +05:30
Ganesh Vernekar dff967286e
Set the min time of Head properly after truncation (#8212)
* Set the min time of Head properly after truncation

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>

* Fix lint

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>

* Enhance compaction plan logic for completely deleted small block

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>

* Fix review comments

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>
2020-11-25 18:33:30 +05:30
Marco Pracucci db19e05d93
Add option to customise head chunks write buffer size (#8201)
* Add option to customise head chunks write buffer size

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

* Fixed tests

Signed-off-by: Marco Pracucci <marco@pracucci.com>
2020-11-19 18:30:47 +05:30
Julien Pivotto 6c56a1faaa
Testify: move to require (#8122)
* Testify: move to require

Moving testify to require to fail tests early in case of errors.

Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>

* More moves

Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
2020-10-29 09:43:23 +00:00
Julien Pivotto 1282d1b39c
Refactor test assertions (#8110)
* Refactor test assertions

This pull request gets rid of assert.True where possible to use
fine-grained assertions.

Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
2020-10-27 11:06:53 +01:00
Julien Pivotto 4e5b1722b3
Move away from testutil, refactor imports (#8087)
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
2020-10-22 11:00:08 +02:00
Bartlomiej Plotka 2fe1e9fa93
Create a checkpoint only at the end of Compact call (#8067)
* Create a checkpoint only at the end of Compact call

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>

* Fix review comments

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>

* Fix Bartek's offline reviews

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>

* Introduce TruncateInMemory and TruncateWAL

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>

* Small enhancements and test fixing attempts

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>

* Fix tests

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>

* Add TestOneCheckpointPerCompactCall

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>

* Don't truncate WAL on block compaction

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>

* Simplified the algo.

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

* Better protection around calling truncateWAL, truncate WAL on Head compaction error

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>

Co-authored-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>
2020-10-19 20:57:08 +05:30
Brian Brazil 073e93c768
Gracefully handle unknown WAL record types. (#8004)
As we're looking to expand what's in the WAL,
having old Prometheus servers ignore the new record types
rather than treating them as corruption allows for better
upgrade/downgrade paths.

Adjust some tests accordingly, so they're still testing what they're
meant to test.

Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
2020-10-05 10:09:59 +01:00
Xiaochao Dong a282d25099
tsdb: remove duplicate values set to reduce memory usage(map overhead) (#7915)
Signed-off-by: Xiaochao Dong (@damnever) <dxc.wolf@gmail.com>
2020-09-10 20:35:47 +05:30