Commit graph

40 commits

Author SHA1 Message Date
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
Ganesh Vernekar 04ad56d9b8
Append sparse histograms into the Head block (#9013)
* Append sparse histograms into the Head block

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

* Add AtHistogram() to Iterator interface. Make HistoChunk conform to Chunk interface.

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
2021-06-29 20:08:46 +05:30
Christian Simon 9781e51f59
Correct spelling of "iterable" (#8713)
Signed-off-by: Christian Simon <simon@swine.de>
2021-04-12 21:43:42 +01:00
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
Bartlomiej Plotka 4513537034
Exposed DeletionIterator and CompactMetas functions. (#8161)
* Exposed DeletionIterator and CompactMetas functions.

Required for CLI for deletions in Thanos: https://github.com/thanos-io/thanos/pull/3421

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

* Removed Thanos usage mentions.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
2020-11-09 16:51:25 +00:00
Bartlomiej Plotka 3d8826a3d4
MultiError: Refactored MultiError for more concise and safe usage. (#8066)
* MultiError: Refactored MultiError for more concise and safe usage.

* Less lines
* Goland IDE was marking every usage of old MultiError "potential nil" error
* It was easy to forgot using Err() when error was returned, now it's safely assured on compile time.

NOTE: Potentially I would rename package to merrors. (: In different PR.

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

* Addressed review comments.

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

* Addressed comments.

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

* Fix after rebase.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
2020-10-28 15:24:58 +00:00
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
Goutham Veeramachaneni 1cc02930b6
Implement series API query hint to not hit chunks (#8050)
Fixes https://github.com/prometheus/prometheus/issues/5547

Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com>
2020-10-14 14:36:17 +05:30
Frederic Branczyk e0cf219f0d
tsdb: Save allocations on labels by re-using label array
Signed-off-by: Frederic Branczyk <fbranczyk@gmail.com>
2020-08-05 10:27:14 +02:00
Bartlomiej Plotka 28c5cfaf0d
tsdb: Moved code merge series and iterators to differen files; cleanup. No functional changes just move! (#7714)
I did not want to move those in previous PR to make it easier to review. Now small cleanup time for readability. (:

## Changes

* Merge series goes to `storage/merge.go` leaving `fanout.go` for just fanout code.
* Moved `fanout test` code from weird separate package to storage.
* Unskiped one test: TestFanout_SelectSorted/chunk_querier
* Moved block series set codes responsible for querying blocks to `querier.go` from `compact.go`



Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
2020-08-03 11:32:56 +01:00
Bartlomiej Plotka e6d7cc5fa4
tsdb: Added ChunkQueryable implementations to db; unified MergeSeriesSets and vertical to single struct. (#7069)
* tsdb: Added ChunkQueryable implementations to db; unified compactor, querier and fanout block iterating.

Chained to https://github.com/prometheus/prometheus/pull/7059

* NewMerge(Chunk)Querier now takies multiple primaries allowing tsdb DB code to use it.
* Added single SeriesEntry / ChunkEntry for all series implementations.
* Unified all vertical, and non vertical for compact and querying to single
merge series / chunk sets by reusing VerticalSeriesMergeFunc for overlapping algorithm (same logic as before)
* Added block (Base/Chunk/)Querier for block querying. We then use populateAndTomb(Base/Chunk/) to iterate over chunks or samples.
* Refactored endpoint tests and querier tests to include subtests.

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

* Addressed comments from Brian and Beorn.

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

* Fixed snapshot test and added chunk iterator support for DBReadOnly.

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

* Fixed race when iterating over Ats first.

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

* Fixed tests.

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

* Fixed populate block tests.

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

* Fixed endpoints test.

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

* Fixed test.

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

* Added test & fixed case of head open chunk.

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

* Fixed DBReadOnly tests and bug producing 1 sample chunks.

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

* Added cases for partial block overlap for multiple full chunks.

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

* Added extra tests for chunk meta after compaction.

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

* Fixed small vertical merge bug and added more tests for that.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
2020-07-31 16:03:02 +01:00
Ganesh Vernekar 082c17b691
Introduce SortedLabelValues/LabelValues to speedup queries for high cardinality (#7448)
* Introduce LabelValuesUnsorted to speedup queries for high cardinality

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

* Add sort check

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>
2020-06-25 14:10:29 +01:00
Kemal Akkoyun 66dfb951c4
*: Consistent Error/Warning handling for SeriesSet iterator: Allowing Async Select (#7251)
* Add errors and Warnings to SeriesSet

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Change Querier interface and refactor accordingly

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Refactor promql/engine to propagate warnings at eval stage

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Address review issues

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Make sure all the series from all Selects are pre-advanced

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Address review issues

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Separate merge series sets

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Clean

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Refactor merge querier failure handling

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Refactored and simplified fanout with improvements from incoming chunk iterator PRs.

* Secondary logic is hidden, instead of weird failed series set logic we had.
* Fanout is well commented
* Fanout closing record all errors
* MergeQuerier improved API (clearer)
* deferredGenericMergeSeriesSet is not needed as we return no samples anyway for failed series sets (next = false).

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

* Fix formatting

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Fix CI issues

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Added final tests for error handling.

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

* Addressed Brian's comments.

* Moved hints in populate to be allocated only when needed.
* Used sync.Once in secondary Querier to achieve all-or-nothing partial response logic.
* Select after first Next is done will panic.

NOTE: in lazySeriesSet in theory we could just panic, I think however we can
totally just return error, it will panic in expand anyway.

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

* Utilize errWithWarnings

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Fix recently introduced expansion issue

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Add tests for secondary querier error handling

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Implement lazy merge

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Add name to test cases

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Reorganize

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Address review comments

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Address review comments

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Remove redundant warnings

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Fix rebase mistake

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

Co-authored-by: Bartlomiej Plotka <bwplotka@gmail.com>
2020-06-09 17:57:31 +01:00
Jess G fdc49fae5b
Added time range parameters to labelNames API (#7288)
* add time range params to labelNames api

Signed-off-by: jessicagreben <Jessica.greben1+github@gmail.com>

* evaluate min/max time range when reading labels from the head

Signed-off-by: jessicagreben <Jessica.greben1+github@gmail.com>

* add time range params to labelValues api

Signed-off-by: jessicagreben <Jessica.greben1+github@gmail.com>

* fix test, add docs

Signed-off-by: jessicagreben <Jessica.greben1+github@gmail.com>

* add a test for head min max range

Signed-off-by: jessicagreben <Jessica.greben1+github@gmail.com>

* fix test to match comment

Signed-off-by: jessicagreben <Jessica.greben1+github@gmail.com>

* address CR comments

Signed-off-by: jessicagreben <Jessica.greben1+github@gmail.com>

* combine vars only used once

Signed-off-by: jessicagreben <Jessica.greben1+github@gmail.com>

* add time range params to labelNames api

Signed-off-by: jessicagreben <Jessica.greben1+github@gmail.com>

* evaluate min/max time range when reading labels from the head

Signed-off-by: jessicagreben <Jessica.greben1+github@gmail.com>

* add time range params to labelValues api

Signed-off-by: jessicagreben <Jessica.greben1+github@gmail.com>

* fix test, add docs

Signed-off-by: jessicagreben <Jessica.greben1+github@gmail.com>

* add a test for head min max range

Signed-off-by: jessicagreben <Jessica.greben1+github@gmail.com>

* fix test to match comment

Signed-off-by: jessicagreben <Jessica.greben1+github@gmail.com>

* address CR comments

Signed-off-by: jessicagreben <Jessica.greben1+github@gmail.com>

* combine vars only used once

Signed-off-by: jessicagreben <Jessica.greben1+github@gmail.com>

* fix test

Signed-off-by: jessicagreben <Jessica.greben1+github@gmail.com>

* restart ci

Signed-off-by: jessicagreben <Jessica.greben1+github@gmail.com>

* use range expectedLabelNames instead of range actualLabelNames in test

Signed-off-by: jessicagreben <Jessica.greben1+github@gmail.com>
2020-05-30 13:50:09 +01:00
Goutham Veeramachaneni 84b4d079c8
Make sure deleted intervals are excluded from Seek (#6980)
Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com>
2020-04-23 10:00:30 +01:00
Julien Pivotto 9057decce2
Merge pull request #7060 from prometheus/release-2.17
Release 2.17
2020-03-27 15:57:07 +01:00
Julien Pivotto 653f343547 Revert head posting optimization
This reverts commit 52630ad0c7.

Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
2020-03-25 20:19:33 +01:00
Bartlomiej Plotka d5c33877f9
storage: Added Chunks{Queryable/Querier/SeriesSet/Series/Iteratable. Added generic Merge{SeriesSet/Querier} implementation. (#7005)
* storage: Added Chunks{Queryable/Querier/SeriesSet/Series/Iteratable. Added generic Merge{SeriesSet/Querier} implementation.

## Rationales:

In many places (e.g. chunk Remote read, Thanos Receive fetching chunk from TSDB), we operate on encoded chunks not samples.
This means that we unnecessary decode/encode, wasting CPU, time and memory.
This PR adds chunk iterator interfaces and makes the merge code to be reused between both seriesSets

I will make the use of it in following PR inside tsdb itself. For now fanout implements it and mergers.

All merges now also allows passing series mergers. This opens doors for custom deduplications other than TSDB vertical ones (e.g. offline one we have in Thanos).

## Changes

* Added Chunk versions of all iterating methods. It all starts in Querier/ChunkQuerier. The plan is that
Storage will implement both chunked and samples.
* Added Seek to chunks.Iterator interface for iterating over chunks.
* NewMergeChunkQuerier was added; Both this and NewMergeQuerier are now using generigMergeQuerier to share the code. Generic code was added.
* Improved tests.
* Added some TODO for further simplifications in next PRs.

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

* Addressed Brian's comments.

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

* Moved s/Labeled/SeriesLabels as per Krasi suggestion.

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

* Addressed Krasi's comments.

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

* Second iteration of Krasi comments.

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

* Another round of comments.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
2020-03-24 20:15:47 +00:00
Bartlomiej Plotka c4eefd1b3a storage: Removed SelectSorted method; Simplified interface; Added requirement for remote read to sort response.
This is technically BREAKING CHANGE, but it was like this from the beginning: I just notice that we rely in
Prometheus on remote read being sorted. This is because we use selected data from remote reads in MergeSeriesSet
which rely on sorting.

I found during work on https://github.com/prometheus/prometheus/pull/5882 that
we do so many repetitions because of this, for not good reason. I think
I found a good balance between convenience and readability with just one method.
Smaller the interface = better.

Also I don't know what TestSelectSorted was testing, but now it's testing sorting.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
2020-03-20 21:14:43 +01:00
Björn Rabenstein 1da83305be
Merge pull request #7009 from prometheus/release-2.17
Merge release-2.17 into master
2020-03-19 13:46:28 +01:00
Julien Pivotto 8907ba6235 Make TSDB use storage errors
This fixes #6992, which was introduced by #6777. There was an
intermediate component which translated TSDB errors into storage errors,
but that component was deleted and this bug went unnoticed, until we
were watching at the Prombench results. Without this, scrape will fail
instead of dropping samples or using "Add" when the series have been
garbage collected.

Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
2020-03-17 22:24:25 +01:00
Bartlomiej Plotka 9d9c45588e Addressed Goutham's review.
Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
2020-03-13 19:18:31 +00:00
Bartlomiej Plotka cd9516316a Addressed Brian's comments.
Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
2020-03-13 14:37:47 +00:00
Bartlomiej Plotka fe802f29c9 storage: Removed SelectSorted method; Simplified interface; Added requirement for remote read to sort response.
This is technically BREAKING CHANGE, but it was like this from the beginning: I just notice that we rely in
Prometheus on remote read being sorted. This is because we use selected data from remote reads in MergeSeriesSet
which rely on sorting.

I found during work on https://github.com/prometheus/prometheus/pull/5882 that
we do so many repetitions because of this, for not good reason. I think
I found a good balance between convenience and readability with just one method.
Smaller the interface = better.

Also I don't know what TestSelectSorted was testing, but now it's testing sorting.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
2020-03-13 13:06:25 +00:00
Brian Brazil cebe36c7d5 Make head Postings only return series in time range
Series() will fetch all the metadata for a series,
even if it's going to be filtered later due to time ranges.

For 1M series we save ~1.1s if you only needed some of the data, but take an
extra ~.2s if you did want everything.

benchmark                                  old ns/op      new ns/op      delta
BenchmarkHeadSeries/1of1000000-4           1443715987     131553480      -90.89%
BenchmarkHeadSeries/10of1000000-4          1433394040     130730596      -90.88%
BenchmarkHeadSeries/100of1000000-4         1437444672     131360813      -90.86%
BenchmarkHeadSeries/1000of1000000-4        1438958659     132573137      -90.79%
BenchmarkHeadSeries/10000of1000000-4       1438061766     145742377      -89.87%
BenchmarkHeadSeries/100000of1000000-4      1455060948     281659416      -80.64%
BenchmarkHeadSeries/1000000of1000000-4     1633524504     1803550153     +10.41%

benchmark                                  old allocs     new allocs     delta
BenchmarkHeadSeries/1of1000000-4           4000055        28             -100.00%
BenchmarkHeadSeries/10of1000000-4          4000073        87             -100.00%
BenchmarkHeadSeries/100of1000000-4         4000253        630            -99.98%
BenchmarkHeadSeries/1000of1000000-4        4002053        6036           -99.85%
BenchmarkHeadSeries/10000of1000000-4       4020053        60054          -98.51%
BenchmarkHeadSeries/100000of1000000-4      4200053        600074         -85.71%
BenchmarkHeadSeries/1000000of1000000-4     6000053        6000094        +0.00%

benchmark                                  old bytes     new bytes     delta
BenchmarkHeadSeries/1of1000000-4           229192184     2488          -100.00%
BenchmarkHeadSeries/10of1000000-4          229193336     5568          -100.00%
BenchmarkHeadSeries/100of1000000-4         229204856     35536         -99.98%
BenchmarkHeadSeries/1000of1000000-4        229320056     345104        -99.85%
BenchmarkHeadSeries/10000of1000000-4       230472056     3894673       -98.31%
BenchmarkHeadSeries/100000of1000000-4      241992056     40511632      -83.26%
BenchmarkHeadSeries/1000000of1000000-4     357192056     402380440     +12.65%

Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
2020-02-20 22:18:42 +01:00
Bartlomiej Plotka 34426766d8 Unify Iterator interfaces. All point to storage now.
This is part of https://github.com/prometheus/prometheus/pull/5882 that can be done to simplify things.
All todos I added will be fixed in follow up PRs.

* querier.Querier, querier.Appender, querier.SeriesSet, and querier.Series interfaces merged
with storage interface.go. All imports that.
* querier.SeriesIterator replaced by chunkenc.Iterator
* Added chunkenc.Iterator.Seek method and tests for xor implementation (?)
* Since we properly handle SelectParams for Select methods I adjusted min max
based on that. This should help in terms of performance for queries with functions like offset.
* added Seek to deletedIterator and test.
* storage/tsdb was removed as it was only a unnecessary glue with incompatible structs.

No logic was changed, only different source of abstractions, so no need for benchmarks.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
2020-02-17 18:03:54 +00:00
Ben Ye 492414542e
fix matcher for regex (#6540)
Signed-off-by: yeya24 <yb532204897@gmail.com>
2020-02-05 10:53:12 +00:00
Brian Brazil 38d32e0686 Don't sort postings if we only have one block.
Sorting the heads postings can be quite slow.
We only need sorted series when merging with another
querier, so only sort then.
This will make big queries that only touch the head faster,
though queries that touch both the head and a block will still
be the same speed. This probably won't help much with graphing
unless the range is under an hour, however it should make most
recording rules faster.

Add gaurantee that remote read streaming produces sorted series.

PromQL benchmarks for histograms show only 2-3% improvement, but
they're only over 1k series.

benchmark                                                old ns/op      new ns/op      delta
BenchmarkQuerierSelect/Head/1of1000000-4                 1375486282     507657736      -63.09%
BenchmarkQuerierSelect/Head/10of1000000-4                1387859004     507769850      -63.41%
BenchmarkQuerierSelect/Head/100of1000000-4               1387087935     506029110      -63.52%
BenchmarkQuerierSelect/Head/1000of1000000-4              1386869064     504521986      -63.62%
BenchmarkQuerierSelect/Head/10000of1000000-4             1386213685     505210422      -63.55%
BenchmarkQuerierSelect/Head/100000of1000000-4            1392754988     529842406      -61.96%
BenchmarkQuerierSelect/Head/1000000of1000000-4           1569414722     725059506      -53.80%
BenchmarkQuerierSelect/SortedHead/1of1000000-4           1381019902     1370495863     -0.76%
BenchmarkQuerierSelect/SortedHead/10of1000000-4          1375696209     1366789468     -0.65%
BenchmarkQuerierSelect/SortedHead/100of1000000-4         1386009422     1364519297     -1.55%
BenchmarkQuerierSelect/SortedHead/1000of1000000-4        1377700532     1364486191     -0.96%
BenchmarkQuerierSelect/SortedHead/10000of1000000-4       1383539536     1369545314     -1.01%
BenchmarkQuerierSelect/SortedHead/100000of1000000-4      1410089163     1394731339     -1.09%
BenchmarkQuerierSelect/SortedHead/1000000of1000000-4     1634744148     1581554956     -3.25%
BenchmarkQuerierSelect/Block/1of1000000-4                881741242      879839470      -0.22%
BenchmarkQuerierSelect/Block/10of1000000-4               880381562      882846038      +0.28%
BenchmarkQuerierSelect/Block/100of1000000-4              887519357      881016916      -0.73%
BenchmarkQuerierSelect/Block/1000of1000000-4             902194205      883433524      -2.08%
BenchmarkQuerierSelect/Block/10000of1000000-4            892321964      885130170      -0.81%
BenchmarkQuerierSelect/Block/100000of1000000-4           938604466      933527150      -0.54%
BenchmarkQuerierSelect/Block/1000000of1000000-4          1313510845     1295881124     -1.34%

benchmark                                                old allocs     new allocs     delta
BenchmarkQuerierSelect/Head/1of1000000-4                 4000056        4000018        -0.00%
BenchmarkQuerierSelect/Head/10of1000000-4                4000074        4000036        -0.00%
BenchmarkQuerierSelect/Head/100of1000000-4               4000254        4000216        -0.00%
BenchmarkQuerierSelect/Head/1000of1000000-4              4002054        4002016        -0.00%
BenchmarkQuerierSelect/Head/10000of1000000-4             4020054        4020016        -0.00%
BenchmarkQuerierSelect/Head/100000of1000000-4            4200054        4200016        -0.00%
BenchmarkQuerierSelect/Head/1000000of1000000-4           6000054        6000016        -0.00%
BenchmarkQuerierSelect/SortedHead/1of1000000-4           4000071        4000071        +0.00%
BenchmarkQuerierSelect/SortedHead/10of1000000-4          4000089        4000089        +0.00%
BenchmarkQuerierSelect/SortedHead/100of1000000-4         4000269        4000269        +0.00%
BenchmarkQuerierSelect/SortedHead/1000of1000000-4        4002069        4002069        +0.00%
BenchmarkQuerierSelect/SortedHead/10000of1000000-4       4020069        4020069        +0.00%
BenchmarkQuerierSelect/SortedHead/100000of1000000-4      4200069        4200069        +0.00%
BenchmarkQuerierSelect/SortedHead/1000000of1000000-4     6000069        6000069        +0.00%
BenchmarkQuerierSelect/Block/1of1000000-4                6000023        6000022        -0.00%
BenchmarkQuerierSelect/Block/10of1000000-4               6000059        6000058        -0.00%
BenchmarkQuerierSelect/Block/100of1000000-4              6000419        6000418        -0.00%
BenchmarkQuerierSelect/Block/1000of1000000-4             6004019        6004018        -0.00%
BenchmarkQuerierSelect/Block/10000of1000000-4            6040019        6040018        -0.00%
BenchmarkQuerierSelect/Block/100000of1000000-4           6400019        6400018        -0.00%
BenchmarkQuerierSelect/Block/1000000of1000000-4          10000020       10000019       -0.00%

benchmark                                                old bytes     new bytes     delta
BenchmarkQuerierSelect/Head/1of1000000-4                 229192200     176001176     -23.21%
BenchmarkQuerierSelect/Head/10of1000000-4                229193352     176002328     -23.21%
BenchmarkQuerierSelect/Head/100of1000000-4               229204872     176013848     -23.21%
BenchmarkQuerierSelect/Head/1000of1000000-4              229320072     176129048     -23.20%
BenchmarkQuerierSelect/Head/10000of1000000-4             230472072     177281048     -23.08%
BenchmarkQuerierSelect/Head/100000of1000000-4            241992072     188801048     -21.98%
BenchmarkQuerierSelect/Head/1000000of1000000-4           357192072     304001048     -14.89%
BenchmarkQuerierSelect/SortedHead/1of1000000-4           229193928     229193928     +0.00%
BenchmarkQuerierSelect/SortedHead/10of1000000-4          229195080     229195080     +0.00%
BenchmarkQuerierSelect/SortedHead/100of1000000-4         229206600     229206600     +0.00%
BenchmarkQuerierSelect/SortedHead/1000of1000000-4        229321800     229321800     +0.00%
BenchmarkQuerierSelect/SortedHead/10000of1000000-4       230473800     230473800     +0.00%
BenchmarkQuerierSelect/SortedHead/100000of1000000-4      241993800     241993800     +0.00%
BenchmarkQuerierSelect/SortedHead/1000000of1000000-4     357193800     357193800     +0.00%
BenchmarkQuerierSelect/Block/1of1000000-4                227201516     227201500     -0.00%
BenchmarkQuerierSelect/Block/10of1000000-4               227202924     227202908     -0.00%
BenchmarkQuerierSelect/Block/100of1000000-4              227217036     227217020     -0.00%
BenchmarkQuerierSelect/Block/1000of1000000-4             227358156     227358140     -0.00%
BenchmarkQuerierSelect/Block/10000of1000000-4            228769356     228769340     -0.00%
BenchmarkQuerierSelect/Block/100000of1000000-4           242881356     242881340     -0.00%
BenchmarkQuerierSelect/Block/1000000of1000000-4          384001616     384001600     -0.00%

Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
2020-01-28 09:14:56 +00:00
Brian Brazil 4708915ac6 Replace StringTuples with []string
Benchmarks show slight cpu/allocs improvements.

benchmark                                                               old ns/op      new ns/op      delta
BenchmarkPostingsForMatchers/Head/n="1"-4                               269978625      235305110      -12.84%
BenchmarkPostingsForMatchers/Head/n="1",j="foo"-4                       129739974      121646193      -6.24%
BenchmarkPostingsForMatchers/Head/j="foo",n="1"-4                       123826274      122056253      -1.43%
BenchmarkPostingsForMatchers/Head/n="1",j!="foo"-4                      126962188      130038235      +2.42%
BenchmarkPostingsForMatchers/Head/i=~".*"-4                             6423653989     5991126455     -6.73%
BenchmarkPostingsForMatchers/Head/i=~".+"-4                             6934647521     7033370634     +1.42%
BenchmarkPostingsForMatchers/Head/i=~""-4                               1177781285     1121497736     -4.78%
BenchmarkPostingsForMatchers/Head/i!=""-4                               7033680256     7246094991     +3.02%
BenchmarkPostingsForMatchers/Head/n="1",i=~".*",j="foo"-4               293702332      287440212      -2.13%
BenchmarkPostingsForMatchers/Head/n="1",i=~".*",i!="2",j="foo"-4        307628268      307039964      -0.19%
BenchmarkPostingsForMatchers/Head/n="1",i!=""-4                         512247746      480003862      -6.29%
BenchmarkPostingsForMatchers/Head/n="1",i!="",j="foo"-4                 361199794      367066917      +1.62%
BenchmarkPostingsForMatchers/Head/n="1",i=~".+",j="foo"-4               478863761      476037784      -0.59%
BenchmarkPostingsForMatchers/Head/n="1",i=~"1.+",j="foo"-4              103394659      102902098      -0.48%
BenchmarkPostingsForMatchers/Head/n="1",i=~".+",i!="2",j="foo"-4        482552781      475453903      -1.47%
BenchmarkPostingsForMatchers/Head/n="1",i=~".+",i!~"2.*",j="foo"-4      559257389      589297047      +5.37%
BenchmarkPostingsForMatchers/Block/n="1"-4                              36492          37012          +1.42%
BenchmarkPostingsForMatchers/Block/n="1",j="foo"-4                      557788         611903         +9.70%
BenchmarkPostingsForMatchers/Block/j="foo",n="1"-4                      554443         573814         +3.49%
BenchmarkPostingsForMatchers/Block/n="1",j!="foo"-4                     553227         553826         +0.11%
BenchmarkPostingsForMatchers/Block/i=~".*"-4                            113855090      111707221      -1.89%
BenchmarkPostingsForMatchers/Block/i=~".+"-4                            133994674      136520728      +1.89%
BenchmarkPostingsForMatchers/Block/i=~""-4                              38138091       36299898       -4.82%
BenchmarkPostingsForMatchers/Block/i!=""-4                              28861213       27396723       -5.07%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",j="foo"-4              112699941      110853868      -1.64%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",i!="2",j="foo"-4       113198026      111389742      -1.60%
BenchmarkPostingsForMatchers/Block/n="1",i!=""-4                        28994069       27363804       -5.62%
BenchmarkPostingsForMatchers/Block/n="1",i!="",j="foo"-4                29709406       28589223       -3.77%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",j="foo"-4              134695119      135736971      +0.77%
BenchmarkPostingsForMatchers/Block/n="1",i=~"1.+",j="foo"-4             26783286       25826928       -3.57%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!="2",j="foo"-4       134733254      134116739      -0.46%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!~"2.*",j="foo"-4     160713937      158802768      -1.19%

benchmark                                                               old allocs     new allocs     delta
BenchmarkPostingsForMatchers/Head/n="1"-4                               36             36             +0.00%
BenchmarkPostingsForMatchers/Head/n="1",j="foo"-4                       38             38             +0.00%
BenchmarkPostingsForMatchers/Head/j="foo",n="1"-4                       38             38             +0.00%
BenchmarkPostingsForMatchers/Head/n="1",j!="foo"-4                      42             40             -4.76%
BenchmarkPostingsForMatchers/Head/i=~".*"-4                             61             59             -3.28%
BenchmarkPostingsForMatchers/Head/i=~".+"-4                             100088         100087         -0.00%
BenchmarkPostingsForMatchers/Head/i=~""-4                               100053         100051         -0.00%
BenchmarkPostingsForMatchers/Head/i!=""-4                               100087         100085         -0.00%
BenchmarkPostingsForMatchers/Head/n="1",i=~".*",j="foo"-4               44             42             -4.55%
BenchmarkPostingsForMatchers/Head/n="1",i=~".*",i!="2",j="foo"-4        50             48             -4.00%
BenchmarkPostingsForMatchers/Head/n="1",i!=""-4                         100076         100074         -0.00%
BenchmarkPostingsForMatchers/Head/n="1",i!="",j="foo"-4                 100077         100075         -0.00%
BenchmarkPostingsForMatchers/Head/n="1",i=~".+",j="foo"-4               100077         100074         -0.00%
BenchmarkPostingsForMatchers/Head/n="1",i=~"1.+",j="foo"-4              11167          11165          -0.02%
BenchmarkPostingsForMatchers/Head/n="1",i=~".+",i!="2",j="foo"-4        100082         100080         -0.00%
BenchmarkPostingsForMatchers/Head/n="1",i=~".+",i!~"2.*",j="foo"-4      111265         111261         -0.00%
BenchmarkPostingsForMatchers/Block/n="1"-4                              6              6              +0.00%
BenchmarkPostingsForMatchers/Block/n="1",j="foo"-4                      11             11             +0.00%
BenchmarkPostingsForMatchers/Block/j="foo",n="1"-4                      11             11             +0.00%
BenchmarkPostingsForMatchers/Block/n="1",j!="foo"-4                     15             13             -13.33%
BenchmarkPostingsForMatchers/Block/i=~".*"-4                            12             10             -16.67%
BenchmarkPostingsForMatchers/Block/i=~".+"-4                            100040         100038         -0.00%
BenchmarkPostingsForMatchers/Block/i=~""-4                              100045         100043         -0.00%
BenchmarkPostingsForMatchers/Block/i!=""-4                              100041         100039         -0.00%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",j="foo"-4              17             15             -11.76%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",i!="2",j="foo"-4       23             21             -8.70%
BenchmarkPostingsForMatchers/Block/n="1",i!=""-4                        100046         100044         -0.00%
BenchmarkPostingsForMatchers/Block/n="1",i!="",j="foo"-4                100050         100048         -0.00%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",j="foo"-4              100049         100047         -0.00%
BenchmarkPostingsForMatchers/Block/n="1",i=~"1.+",j="foo"-4             11150          11148          -0.02%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!="2",j="foo"-4       100055         100053         -0.00%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!~"2.*",j="foo"-4     111238         111234         -0.00%

benchmark                                                               old bytes     new bytes     delta
BenchmarkPostingsForMatchers/Head/n="1"-4                               10887816      10887817      +0.00%
BenchmarkPostingsForMatchers/Head/n="1",j="foo"-4                       5456648       5456648       +0.00%
BenchmarkPostingsForMatchers/Head/j="foo",n="1"-4                       5456648       5456648       +0.00%
BenchmarkPostingsForMatchers/Head/n="1",j!="foo"-4                      5456792       5456712       -0.00%
BenchmarkPostingsForMatchers/Head/i=~".*"-4                             258254408     258254328     -0.00%
BenchmarkPostingsForMatchers/Head/i=~".+"-4                             273912888     273912904     +0.00%
BenchmarkPostingsForMatchers/Head/i=~""-4                               17266680      17266600      -0.00%
BenchmarkPostingsForMatchers/Head/i!=""-4                               273912416     273912336     -0.00%
BenchmarkPostingsForMatchers/Head/n="1",i=~".*",j="foo"-4               7062578       7062498       -0.00%
BenchmarkPostingsForMatchers/Head/n="1",i=~".*",i!="2",j="foo"-4        7062770       7062690       -0.00%
BenchmarkPostingsForMatchers/Head/n="1",i!=""-4                         28152346      28152266      -0.00%
BenchmarkPostingsForMatchers/Head/n="1",i!="",j="foo"-4                 22721178      22721098      -0.00%
BenchmarkPostingsForMatchers/Head/n="1",i=~".+",j="foo"-4               22721336      22721224      -0.00%
BenchmarkPostingsForMatchers/Head/n="1",i=~"1.+",j="foo"-4              3623804       3623733       -0.00%
BenchmarkPostingsForMatchers/Head/n="1",i=~".+",i!="2",j="foo"-4        22721480      22721400      -0.00%
BenchmarkPostingsForMatchers/Head/n="1",i=~".+",i!~"2.*",j="foo"-4      24816652      24816444      -0.00%
BenchmarkPostingsForMatchers/Block/n="1"-4                              296           296           +0.00%
BenchmarkPostingsForMatchers/Block/n="1",j="foo"-4                      424           424           +0.00%
BenchmarkPostingsForMatchers/Block/j="foo",n="1"-4                      424           424           +0.00%
BenchmarkPostingsForMatchers/Block/n="1",j!="foo"-4                     1544          1464          -5.18%
BenchmarkPostingsForMatchers/Block/i=~".*"-4                            1606114       1606045       -0.00%
BenchmarkPostingsForMatchers/Block/i=~".+"-4                            17264709      17264629      -0.00%
BenchmarkPostingsForMatchers/Block/i=~""-4                              17264780      17264696      -0.00%
BenchmarkPostingsForMatchers/Block/i!=""-4                              17264680      17264600      -0.00%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",j="foo"-4              1606253       1606165       -0.01%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",i!="2",j="foo"-4       1606445       1606348       -0.01%
BenchmarkPostingsForMatchers/Block/n="1",i!=""-4                        17264808      17264728      -0.00%
BenchmarkPostingsForMatchers/Block/n="1",i!="",j="foo"-4                17264936      17264856      -0.00%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",j="foo"-4              17264965      17264885      -0.00%
BenchmarkPostingsForMatchers/Block/n="1",i=~"1.+",j="foo"-4             3148262       3148182       -0.00%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!="2",j="foo"-4       17265141      17265061      -0.00%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!~"2.*",j="foo"-4     20416944      20416784      -0.00%

Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
2020-01-07 12:20:03 +00:00
Brian Brazil e9ede51753 Remove last vestiges of never used composite index code.
Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
2020-01-07 12:20:03 +00:00
Brian Brazil 767fa704b6 Load only some offsets into the symbol table into memory.
Rather than keeping the entire symbol table in memory, keep every nth
offset and walk from there to the entry we need. This ends up slightly
slower, ~360ms per 1M series returned from PostingsForMatchers which is
not much considering the rest of the CPU such a query would go on to
use.

Make LabelValues use the postings tables, rather than having
to do symbol lookups. Use yoloString, as PostingsForMatchers
doesn't need the strings to stick around and adjust the API
call to keep the Querier open until it's all marshalled.

Remove allocatedSymbols memory optimisation, we no longer keep all the
symbol strings in heap memory. Remove LabelValuesFor and LabelIndices,
they're dead code. Ensure we've still tests for label indices,
and add missing test that we can work with old V1 Format index files.

PostingForMatchers performance is slightly better, with a big drop in
allocation counts due to using yoloString for LabelValues:

benchmark                                                               old ns/op     new ns/op     delta
BenchmarkPostingsForMatchers/Block/n="1"-4                              36698         36681         -0.05%
BenchmarkPostingsForMatchers/Block/n="1",j="foo"-4                      522786        560887        +7.29%
BenchmarkPostingsForMatchers/Block/j="foo",n="1"-4                      511652        537680        +5.09%
BenchmarkPostingsForMatchers/Block/n="1",j!="foo"-4                     522102        564239        +8.07%
BenchmarkPostingsForMatchers/Block/i=~".*"-4                            113689911     111795919     -1.67%
BenchmarkPostingsForMatchers/Block/i=~".+"-4                            135825572     132871085     -2.18%
BenchmarkPostingsForMatchers/Block/i=~""-4                              40782628      38038181      -6.73%
BenchmarkPostingsForMatchers/Block/i!=""-4                              31267869      29194327      -6.63%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",j="foo"-4              112733329     111568823     -1.03%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",i!="2",j="foo"-4       112868153     111232029     -1.45%
BenchmarkPostingsForMatchers/Block/n="1",i!=""-4                        31338257      29349446      -6.35%
BenchmarkPostingsForMatchers/Block/n="1",i!="",j="foo"-4                32054482      29972436      -6.50%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",j="foo"-4              136504654     133968442     -1.86%
BenchmarkPostingsForMatchers/Block/n="1",i=~"1.+",j="foo"-4             27960350      27264997      -2.49%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!="2",j="foo"-4       136765564     133860724     -2.12%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!~"2.*",j="foo"-4     163714583     159453668     -2.60%

benchmark                                                               old allocs     new allocs     delta
BenchmarkPostingsForMatchers/Block/n="1"-4                              6              6              +0.00%
BenchmarkPostingsForMatchers/Block/n="1",j="foo"-4                      11             11             +0.00%
BenchmarkPostingsForMatchers/Block/j="foo",n="1"-4                      11             11             +0.00%
BenchmarkPostingsForMatchers/Block/n="1",j!="foo"-4                     17             15             -11.76%
BenchmarkPostingsForMatchers/Block/i=~".*"-4                            100012         12             -99.99%
BenchmarkPostingsForMatchers/Block/i=~".+"-4                            200040         100040         -49.99%
BenchmarkPostingsForMatchers/Block/i=~""-4                              200045         100045         -49.99%
BenchmarkPostingsForMatchers/Block/i!=""-4                              200041         100041         -49.99%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",j="foo"-4              100017         17             -99.98%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",i!="2",j="foo"-4       100023         23             -99.98%
BenchmarkPostingsForMatchers/Block/n="1",i!=""-4                        200046         100046         -49.99%
BenchmarkPostingsForMatchers/Block/n="1",i!="",j="foo"-4                200050         100050         -49.99%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",j="foo"-4              200049         100049         -49.99%
BenchmarkPostingsForMatchers/Block/n="1",i=~"1.+",j="foo"-4             111150         11150          -89.97%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!="2",j="foo"-4       200055         100055         -49.99%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!~"2.*",j="foo"-4     311238         111238         -64.26%

benchmark                                                               old bytes     new bytes     delta
BenchmarkPostingsForMatchers/Block/n="1"-4                              296           296           +0.00%
BenchmarkPostingsForMatchers/Block/n="1",j="foo"-4                      424           424           +0.00%
BenchmarkPostingsForMatchers/Block/j="foo",n="1"-4                      424           424           +0.00%
BenchmarkPostingsForMatchers/Block/n="1",j!="foo"-4                     552           1544          +179.71%
BenchmarkPostingsForMatchers/Block/i=~".*"-4                            1600482       1606125       +0.35%
BenchmarkPostingsForMatchers/Block/i=~".+"-4                            17259065      17264709      +0.03%
BenchmarkPostingsForMatchers/Block/i=~""-4                              17259150      17264780      +0.03%
BenchmarkPostingsForMatchers/Block/i!=""-4                              17259048      17264680      +0.03%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",j="foo"-4              1600610       1606242       +0.35%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",i!="2",j="foo"-4       1600813       1606434       +0.35%
BenchmarkPostingsForMatchers/Block/n="1",i!=""-4                        17259176      17264808      +0.03%
BenchmarkPostingsForMatchers/Block/n="1",i!="",j="foo"-4                17259304      17264936      +0.03%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",j="foo"-4              17259333      17264965      +0.03%
BenchmarkPostingsForMatchers/Block/n="1",i=~"1.+",j="foo"-4             3142628       3148262       +0.18%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!="2",j="foo"-4       17259509      17265141      +0.03%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!~"2.*",j="foo"-4     20405680      20416944      +0.06%

However overall Select performance is down and involves more allocs, due to
having to do more than a simple map lookup to resolve a symbol and that all the strings
returned are allocated:

benchmark                                           old ns/op     new ns/op      delta
BenchmarkQuerierSelect/Block/1of1000000-4           506092636     862678244      +70.46%
BenchmarkQuerierSelect/Block/10of1000000-4          505638968     860917636      +70.26%
BenchmarkQuerierSelect/Block/100of1000000-4         505229450     882150048      +74.60%
BenchmarkQuerierSelect/Block/1000of1000000-4        515905414     862241115      +67.13%
BenchmarkQuerierSelect/Block/10000of1000000-4       516785354     874841110      +69.29%
BenchmarkQuerierSelect/Block/100000of1000000-4      540742808     907030187      +67.74%
BenchmarkQuerierSelect/Block/1000000of1000000-4     815224288     1181236903     +44.90%

benchmark                                           old allocs     new allocs     delta
BenchmarkQuerierSelect/Block/1of1000000-4           4000020        6000020        +50.00%
BenchmarkQuerierSelect/Block/10of1000000-4          4000038        6000038        +50.00%
BenchmarkQuerierSelect/Block/100of1000000-4         4000218        6000218        +50.00%
BenchmarkQuerierSelect/Block/1000of1000000-4        4002018        6002018        +49.97%
BenchmarkQuerierSelect/Block/10000of1000000-4       4020018        6020018        +49.75%
BenchmarkQuerierSelect/Block/100000of1000000-4      4200018        6200018        +47.62%
BenchmarkQuerierSelect/Block/1000000of1000000-4     6000018        8000019        +33.33%

benchmark                                           old bytes     new bytes     delta
BenchmarkQuerierSelect/Block/1of1000000-4           176001468     227201476     +29.09%
BenchmarkQuerierSelect/Block/10of1000000-4          176002620     227202628     +29.09%
BenchmarkQuerierSelect/Block/100of1000000-4         176014140     227214148     +29.09%
BenchmarkQuerierSelect/Block/1000of1000000-4        176129340     227329348     +29.07%
BenchmarkQuerierSelect/Block/10000of1000000-4       177281340     228481348     +28.88%
BenchmarkQuerierSelect/Block/100000of1000000-4      188801340     240001348     +27.12%
BenchmarkQuerierSelect/Block/1000000of1000000-4     304001340     355201616     +16.84%

Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
2019-12-17 18:56:58 +00:00
Brian Brazil 48d25e6fe7 Reduce memory used by postings offset table.
Rather than keeping the offset of each postings list, instead
keep the nth offset of the offset of the posting list. As postings
list offsets have always been sorted, we can then get to the closest
entry before the one we want an iterate forwards.

I haven't done much tuning on the 32 number, it was chosen to try
not to read through more than a 4k page of data.

Switch to a bulk interface for fetching postings. Use it to avoid having
to re-read parts of the posting offset table when querying lots of it.

For a index with what BenchmarkHeadPostingForMatchers uses RAM
for r.postings drops from 3.79MB to 80.19kB or about 48x.
Bytes allocated go down by 30%, and suprisingly CPU usage drops by
4-6% for typical queries too.

benchmark                                                               old ns/op      new ns/op      delta
BenchmarkPostingsForMatchers/Block/n="1"-4                              35231          36673          +4.09%
BenchmarkPostingsForMatchers/Block/n="1",j="foo"-4                      563380         540627         -4.04%
BenchmarkPostingsForMatchers/Block/j="foo",n="1"-4                      536782         534186         -0.48%
BenchmarkPostingsForMatchers/Block/n="1",j!="foo"-4                     533990         541550         +1.42%
BenchmarkPostingsForMatchers/Block/i=~".*"-4                            113374598      117969608      +4.05%
BenchmarkPostingsForMatchers/Block/i=~".+"-4                            146329884      139651442      -4.56%
BenchmarkPostingsForMatchers/Block/i=~""-4                              50346510       44961127       -10.70%
BenchmarkPostingsForMatchers/Block/i!=""-4                              41261550       35356165       -14.31%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",j="foo"-4              112544418      116904010      +3.87%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",i!="2",j="foo"-4       112487086      116864918      +3.89%
BenchmarkPostingsForMatchers/Block/n="1",i!=""-4                        41094758       35457904       -13.72%
BenchmarkPostingsForMatchers/Block/n="1",i!="",j="foo"-4                41906372       36151473       -13.73%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",j="foo"-4              147262414      140424800      -4.64%
BenchmarkPostingsForMatchers/Block/n="1",i=~"1.+",j="foo"-4             28615629       27872072       -2.60%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!="2",j="foo"-4       147117177      140462403      -4.52%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!~"2.*",j="foo"-4     175096826      167902298      -4.11%

benchmark                                                               old allocs     new allocs     delta
BenchmarkPostingsForMatchers/Block/n="1"-4                              4              6              +50.00%
BenchmarkPostingsForMatchers/Block/n="1",j="foo"-4                      7              11             +57.14%
BenchmarkPostingsForMatchers/Block/j="foo",n="1"-4                      7              11             +57.14%
BenchmarkPostingsForMatchers/Block/n="1",j!="foo"-4                     15             17             +13.33%
BenchmarkPostingsForMatchers/Block/i=~".*"-4                            100010         100012         +0.00%
BenchmarkPostingsForMatchers/Block/i=~".+"-4                            200069         200040         -0.01%
BenchmarkPostingsForMatchers/Block/i=~""-4                              200072         200045         -0.01%
BenchmarkPostingsForMatchers/Block/i!=""-4                              200070         200041         -0.01%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",j="foo"-4              100013         100017         +0.00%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",i!="2",j="foo"-4       100017         100023         +0.01%
BenchmarkPostingsForMatchers/Block/n="1",i!=""-4                        200073         200046         -0.01%
BenchmarkPostingsForMatchers/Block/n="1",i!="",j="foo"-4                200075         200050         -0.01%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",j="foo"-4              200074         200049         -0.01%
BenchmarkPostingsForMatchers/Block/n="1",i=~"1.+",j="foo"-4             111165         111150         -0.01%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!="2",j="foo"-4       200078         200055         -0.01%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!~"2.*",j="foo"-4     311282         311238         -0.01%

benchmark                                                               old bytes     new bytes     delta
BenchmarkPostingsForMatchers/Block/n="1"-4                              264           296           +12.12%
BenchmarkPostingsForMatchers/Block/n="1",j="foo"-4                      360           424           +17.78%
BenchmarkPostingsForMatchers/Block/j="foo",n="1"-4                      360           424           +17.78%
BenchmarkPostingsForMatchers/Block/n="1",j!="foo"-4                     520           552           +6.15%
BenchmarkPostingsForMatchers/Block/i=~".*"-4                            1600461       1600482       +0.00%
BenchmarkPostingsForMatchers/Block/i=~".+"-4                            24900801      17259077      -30.69%
BenchmarkPostingsForMatchers/Block/i=~""-4                              24900836      17259151      -30.69%
BenchmarkPostingsForMatchers/Block/i!=""-4                              24900760      17259048      -30.69%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",j="foo"-4              1600557       1600621       +0.00%
BenchmarkPostingsForMatchers/Block/n="1",i=~".*",i!="2",j="foo"-4       1600717       1600813       +0.01%
BenchmarkPostingsForMatchers/Block/n="1",i!=""-4                        24900856      17259176      -30.69%
BenchmarkPostingsForMatchers/Block/n="1",i!="",j="foo"-4                24900952      17259304      -30.69%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",j="foo"-4              24900993      17259333      -30.69%
BenchmarkPostingsForMatchers/Block/n="1",i=~"1.+",j="foo"-4             3788311       3142630       -17.04%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!="2",j="foo"-4       24901137      17259509      -30.69%
BenchmarkPostingsForMatchers/Block/n="1",i=~".+",i!~"2.*",j="foo"-4     28693086      20405680      -28.88%

Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
2019-12-11 19:59:31 +00:00
Tom Wilkie de0a772b8e Port tsdb to use pkg/labels. (#6326)
* Port tsdb to use pkg/labels.

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

* Get tests passing.

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

* Remove useless cast.

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

* Appease linters.

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

* Fix review comments

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>
2019-11-18 11:53:33 -08:00
naivewong 23c0299d85 [tsdb] Improve mergeSeriesSet (#5920)
* refactor and simplify mergeSeriesSet

Signed-off-by: naivewong <867245430@qq.com>
2019-11-15 21:45:29 +07:00
陈谭军 103f26d188 fix the wrong word (#6069)
Signed-off-by: chentanjun <2799194073@qq.com>
2019-09-30 09:54:55 -06:00
Callum Styan 3344bb5c33 Move WAL watcher code to tsdb/wal package. (#5999)
* Move WAL watcher code to tsdb/wal package.

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

* Fix tests after moving WAL watcher code.

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

* Lint fixes.

Signed-off-by: Callum Styan <callumstyan@gmail.com>
2019-09-19 14:45:41 +05:30
Yao Zengzeng d1f21552b9 some refactor to make PostingsForMatchers more readable (#5897)
Signed-off-by: YaoZengzeng <yaozengzeng@zju.edu.cn>
2019-09-13 16:10:35 +01:00
Ganesh Vernekar 5ecef3542d
Cleanup after merging tsdb into prometheus
Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>
2019-08-13 14:04:14 +05:30
Ganesh Vernekar 7cf09b0395
Moving tsdb into its own subdirectory
Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>
2019-08-13 13:58:49 +05:30
Renamed from querier.go (Browse further)