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89b778902b
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93 Commits

Author SHA1 Message Date
Aliaksandr Valialkin
89b778902b
app/vmselect: add optional limit query arg to /api/v1/labels and /api/v1/label_values endpoints 
This arg allows limiting the number of sample values returned from these APIs
 2022-06-10 09:50:33 +03:00
Aliaksandr Valialkin
2bcb960f17
all: improve query tracing coverage for indexdb search 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1403
 2022-06-09 20:07:07 +03:00
Aliaksandr Valialkin
12ac255dae
lib/querytracer: make it easier to use by passing trace context message to New and NewChild 
The context message can be extended by calling Donef.
If there is no need to extend the message, then just call Done.
 2022-06-08 21:06:52 +03:00
Aliaksandr Valialkin
41958ed5dd
all: add initial support for query tracing 
See https://docs.victoriametrics.com/Single-server-VictoriaMetrics.html#query-tracing

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1403
 2022-06-01 02:29:23 +03:00
Aliaksandr Valialkin
6e364e19ef
app/vmselect: add fine-grained limits for the number of returned/scanned time series for various APIs 2022-03-26 11:29:49 +02:00
Aliaksandr Valialkin
4bdd10ab90
lib/bytesutil: split Resize* funcs to MayOverallocate and NoOverallocate for more fine-grained control over memory allocations 
Follow-up for f4989edd96

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2007
 2022-02-01 00:18:42 +02:00
Aliaksandr Valialkin
f4989edd96
lib/bytesutil: split Resize() into ResizeNoCopy() and ResizeWithCopy() functions 
Previously bytesutil.Resize() was copying the original byte slice contents to a newly allocated slice.
This wasted CPU cycles and memory bandwidth in some places, where the original slice contents wasn't needed
after slize resizing. Switch such places to bytesutil.ResizeNoCopy().

Rename the original bytesutil.Resize() function to bytesutil.ResizeWithCopy() for the sake of improved readability.

Additionally, allocate new slice with `make()` instead of `append()`. This guarantees that the capacity of the allocated slice
exactly matches the requested size. The `append()` could return a slice with bigger capacity as an optimization for further `append()` calls.
This could result in excess memory usage when the returned byte slice was cached (for instance, in lib/blockcache).

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2007
 2022-01-25 15:24:44 +02:00
Aliaksandr Valialkin
92070cbb67
lib/storage: return dedup interval in milliseconds from GetDedupInterval() 
This removes duplicate .Milliseconds() calls after GetDedupInterval() calls.
 2021-12-15 13:26:38 +02:00
Aliaksandr Valialkin
1d20a19c7d
lib/storage: explicitly pass dedupInterval to DeduplicateSamples() and deduplicateSamplesDuringMerge() 
This improves the code readability and debuggability, since the output of these functions
stops depending on global state.
 2021-12-14 20:49:12 +02:00
Aliaksandr Valialkin
8ed95e82c6
app/vmselect/promql: follow-up after 57b3320478 2021-09-24 01:24:18 +03:00
Aliaksandr Valialkin
f4dead529f lib/storage: properly search series by multiple tag filters matching empty labels such as foo{bar=~"baz|",x=~"y|"} 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1601
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/395
 2021-09-09 21:09:21 +03:00
Aliaksandr Valialkin
a1911e1330 app/vmselect/netstorage: unpack time series data in mostly local big chunks 
This should improve performance on multi-CPU systems for queries selecting time series with big number of raw samples
 2021-07-30 12:03:17 +03:00
Aliaksandr Valialkin
74ffaa45d9 app/vmselect/netstorage: do not query Go maps with unsafe string keys, since this breaks in Go 1.17 2021-07-30 09:57:53 +03:00
Aliaksandr Valialkin
8ee8660ac4 app/vmselect: follow-up for 626073bca8 
* Rename -search.maxMetricsPointSearch to -search.maxSamplesPerQuery, so it is more consistent with the existing -search.maxSamplesPerSeries
* Move the -search.maxSamplesPerQuery from vmstorage to vmselect, so it could effectively limit the number of raw samples obtained from all the vmstorage nodes
* Document the -search.maxSamplesPerQuery in docs/CHANGELOG.md
 2021-07-28 18:00:23 +03:00
Aliaksandr Valialkin
95aff47330 app/vmselect: prevent from possible deadlock when f callback blocks inside RunParallel 2021-07-26 15:47:30 +03:00
Aliaksandr Valialkin
ed10141ff8 app/vmselect/netstorage: use more scalable algorithm for ditributing the work among among multiple channels on systems with big number of CPU cores 2021-07-16 00:35:23 +03:00
Aliaksandr Valialkin
f4e81aef7e app/vmselect/netstorage: add -search.maxSamplesPerSeries command-line option for limiting the number of samples a query can process per each series 
This should prevent from out of memory crashes like in https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1067
 2021-07-15 16:03:28 +03:00
Aliaksandr Valialkin
e6ef97a5ee app/vmselect/netstorage: improve scalability of series unpacking on multi-CPU systems 2021-07-15 15:41:58 +03:00
Aliaksandr Valialkin
832651c6c2 app/vmselect: follow up after 8a0678678b 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1168
 2021-05-12 17:18:30 +03:00
Nikolay
8a0678678b
Adds tsdb match filters (#1282) 
* init work on filters

* init propose for status filters

* fixes tsdb status
adds test

* fix bug

* removes checks from test
 2021-05-12 15:18:45 +03:00
Aliaksandr Valialkin
7962cf1af8 app/vmselect: prevent from possible incomplete query results after timed out query 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/711
 2021-03-30 13:35:45 +03:00
Aliaksandr Valialkin
7bc728bf53 app/vmselect: add vm_index_search_duration_seconds histogram for monitoring the performance of index search 2021-03-17 01:17:41 +02:00
Aliaksandr Valialkin
0ce557951f app/vmselect/netstorage: reduce mutex contention when unpacking data on a system with high number of CPU cores 2021-03-16 21:51:31 +02:00
Aliaksandr Valialkin
c4756f94da app/vmselect/netstorage: reuse timeseriesWork objects in order to reduce memory allocations 2021-02-16 16:08:53 +02:00
Aliaksandr Valialkin
5a401225c7 app/vmselect/netstorage: use unsafe string as a key for a map when the map already contains the given key 
This should prevent from a memory allocation and a string copy.
 2021-02-16 15:43:10 +02:00
Aliaksandr Valialkin
553016ea99 lib/storage: disable composite index usage when querying old data 2021-02-10 14:57:50 +02:00
Aliaksandr Valialkin
c7dccebaef lib/storage: optimize search by label filters matching big number of time series 2021-02-10 00:44:54 +02:00
Aliaksandr Valialkin
157c02622b app/vmselect: add ability to set Graphite-compatible filter via {__graphite__="foo.*.bar"} syntax 2021-02-03 01:21:54 +02:00
Aliaksandr Valialkin
4146fc4668 all: properly handle CPU limits set on the host system/container 
This can reduce memory usage on systems with enabled CPU limits.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/946
 2020-12-08 21:07:29 +02:00
Aliaksandr Valialkin
007dbf273d app/vmselect/graphite: remove duplicate name tag from /tags/autoComplete/tags handler 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/942
 2020-12-07 01:08:52 +02:00
Aliaksandr Valialkin
f765985947 lib/fs: replace fs.OpenReaderAt with fs.MustOpenReaderAt 
All the callers for fs.OpenReaderAt expect that the file will be opened.
So it is better to log fatal error inside fs.MustOpenReaderAt instead of leaving this to the caller.
 2020-11-23 09:57:21 +02:00
Aliaksandr Valialkin
cf18df367d app/vmselect/netstorage: apply Graphite filter after substituting __name__ with name 2020-11-16 15:52:16 +02:00
Aliaksandr Valialkin
86f99c6b55 app/vmselect/graphite: add /tags/autoComplete/tags handler from Graphite Tags API 
See https://graphite.readthedocs.io/en/stable/tags.html#auto-complete-support
 2020-11-16 14:50:05 +02:00
Aliaksandr Valialkin
465923b181 app/vmselect/graphite: add /tags/findSeries handler from Graphite Tags API 
See https://graphite.readthedocs.io/en/stable/tags.html#exploring-tags
 2020-11-16 12:53:13 +02:00
Aliaksandr Valialkin
414cd39659 app/vmselect/graphite: apply filter then limit 2020-11-16 04:09:14 +02:00
Aliaksandr Valialkin
d100341394 app/vmselect/graphite: add /tags/<tag_name> handler for Graphite Tags API 2020-11-16 03:42:25 +02:00
Aliaksandr Valialkin
6251762787 app/vmselect/graphite: add /tags handler from Graphite Tags API 
See https://graphite.readthedocs.io/en/stable/tags.html#exploring-tags
 2020-11-16 03:00:01 +02:00
Aliaksandr Valialkin
b378cd6ed8 app/vmselect: optimize querying for /api/v1/labels and /api/v1/label/<name>/values when start and end args are set 2020-11-05 01:01:33 +02:00
Aliaksandr Valialkin
caeb74f068 app/vmselect: reduce memory usage when query touches big number of time series 2020-11-04 17:04:04 +02:00
Aliaksandr Valialkin
1b3efccb24 app/vmselect: stop /api/v1/export/* execution if client disconnects 2020-09-27 23:53:13 +03:00
Aliaksandr Valialkin
95688cbfc5 all: add native format for data export and import 
The data can be exported via [/api/v1/export/native](https://victoriametrics.github.io/#how-to-export-data-in-native-format) handler
and imported via [/api/v1/import/native](https://victoriametrics.github.io/#how-to-import-data-in-native-format) handler.
 2020-09-27 19:54:07 +03:00
Aliaksandr Valialkin
82973f8ae7 Revert "lib/storage: remove unused fetchData arg from BlockRef.MustReadBlock" 
This reverts commit bab6a15ae0.

Reason for revert: the `fetchData` arg is used in cluster branch.
Leaving this arg in master branch makes smaller the diff with cluster branch.
 2020-09-24 22:44:23 +03:00
Aliaksandr Valialkin
bab6a15ae0 lib/storage: remove unused fetchData arg from BlockRef.MustReadBlock 
This arg became unused after 23bdc1f107
 2020-09-24 20:48:40 +03:00
Aliaksandr Valialkin
23bdc1f107 app/vmselect/netstorage: do not spend CPU time on unpacking empty blocks during /api/v1/series calls 2020-09-24 20:18:10 +03:00
Aliaksandr Valialkin
bed25e3c24 app/vmselect/netstorage: properly pre-allocate space for sbs 2020-09-22 23:49:55 +03:00
Aliaksandr Valialkin
09b0f7c202 app/vmselect/netstorage: release search resources on timeout errors 
Previously these resources weren't released, which could lead to resource leaks.
 2020-09-22 22:57:38 +03:00
Aliaksandr Valialkin
1fec47a289 app/vmselect/netstorage: reduce memory usage when the time range from query touches big number of samples per each time series 2020-09-15 21:08:28 +03:00
Aliaksandr Valialkin
f0005c3007 app/vmselect: move Deadline from netstorage to searchutils 
This removes dependency on netstorage from searchutils.
 2020-09-11 13:27:13 +03:00
Aliaksandr Valialkin
f6bc608e86 app/vmselect: initial implementation of Graphite Metrics API 
See https://graphite-api.readthedocs.io/en/latest/api.html#the-metrics-api
 2020-09-11 00:30:01 +03:00
Aliaksandr Valialkin
8adba82c02 app/vmselect/netstorage: vary batch size for data unpacking depending on the available CPU cores 
This should reduce contention on the channel with unpack work for systems with high number of CPU cores
 2020-08-10 15:16:42 +03:00