Aliaksandr Valialkin
ec7963208d
app/vmselect: accept focusLabel
query arg at /api/v1/status/tsdb
...
This allows filling the seriesCountByFocusLabelValue list in the /api/v1/status/tsdb response
with label values for the specified focusLabel, which contain the highest number of time series.
TODO: add this to Cardinality explorer at VMUI - https://docs.victoriametrics.com/#cardinality-explorer
2022-06-14 18:36:54 +03:00
Aliaksandr Valialkin
374beb350e
app/vmselect: optimize /api/v1/labels
and /api/v1/label/.../values
handlers when match[]
query arg is passed to them
2022-06-12 04:32:13 +03:00
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