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156 Commits

Author SHA1 Message Date
Aliaksandr Valialkin
38c785b851
app/vmselect: remove redundant calls to Request.ParseForm() 
Request.ParseForm() is implicitly called by the first call to Request.FormValue()
 2022-06-09 13:11:26 +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
Dmytro Kozlov
018d2303c4
Cardinality explorer (#2625) 
* Cardinality explorer

* vmui, vmselect: updated field name, added description to spinner

* make vmui-update

* updated const name, make vmui-update

* lib/storage: changes calculation for totalSeries values

* added static files

* wip

* wip

* wip

* wip

* docs/CHANGELOG.md: document cardinality explorer feature

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2233

Co-authored-by: f41gh7 <nik@victoriametrics.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2022-06-08 18:43:05 +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
Dima Lazerka
1e26dd1f82
Code cleanup (#343) 
* Small code cleanup: remove Request from params

* Extract common params to all export handlers

* Renamed ExportParams -> exportParams

* wip

Co-authored-by: Dzmitry Lazerka <dlazerka@gmail.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2022-05-03 16:04:16 +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
193331d522
app/vmselect: de-duplicate data exported via /api/v1/export/csv by default 
Previously the exported data wasn't de-duplicated.
Now it is possible to export the raw data without deduplication
by passing reduce_mem_usage=1 query arg to /api/v1/export/csv

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1837
 2021-12-17 10:57:39 +02:00
Aliaksandr Valialkin
ff15a752c1
app/vmselect: accept optional extra_filters[] query args for all the supported Prometheus querying APIs 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1863
 2021-12-06 17:07:09 +02:00
Aliaksandr Valialkin
e5ac9d8e57
all: consistently return application/json content-type without charset=utf-8 
The `application/json` content-type has utf-8 encoding by default.
See https://stackoverflow.com/questions/9254891/what-does-content-type-application-json-charset-utf-8-really-mean

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/897
 2021-11-09 18:04:44 +02:00
Aliaksandr Valialkin
eca75cc650 app/vmselect/prometheus: make more clear log messages for errors during sending data to remote clients 2021-09-16 12:56:58 +03:00
Roman Khavronenko
b5d6a0e499
vmselect: update vm_request_duration_seconds value when request fails (#1537) 
Before, metric `vm_request_duration_seconds` was update only on successful
attempts which could be misleading. For example, timeout errors on netstorage
request may be not accounted in the metric and won't be visible on dashboards.
Using `defer` statement to update the metric after query arguments validation
may improve the situation.
 2021-08-19 13:58:54 +03:00
Aliaksandr Valialkin
a925d5a3e1 app/vmselect/promql: duration handling improvements in MetricsQL queries 
- Support durations anywhere in MetricsQL queries. E.g. sum_over_time(m[1h])/1h is equivalent to sum_over_time(m[1h])/3600
- Support durations without suffix. E.g. rate(m[300]) is equivalent to rate(m[5m])
 2021-07-12 17:16:41 +03:00
John Belmonte
67b17cdd68
spelling fix: synonym (#1363) 2021-06-10 08:32:52 +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
6bc52fe41a all: rename https://victoriametrics.github.io to https://docs.victoriametrics.com 2021-04-20 20:16:17 +03:00
Aliaksandr Valialkin
e7fdea5953 app/vmselect: add -search.maxStatusRequestDuration command-line flag for limiting the duration of requests to /api/v1/status/* and /api/v1/series/count 2021-03-30 21:41:35 +03:00
Aliaksandr Valialkin
b521d1d4f2 app/vmselect: move getEnforcedTagFiltersFromRequest to searchtuils, since it will be used in Graphite functions soon 2021-03-23 14:16:29 +02:00
Aliaksandr Valialkin
2dae0a2c47 app/vmselect: add round_digits query arg to /api/v1/query and /api/v1/query_range handlers for limiting the number of decimal digits after the point 2021-03-15 12:36:33 +02:00
Aliaksandr Valialkin
2096c6e464 app/vmselect/prometheus: typo fix after 7c002023d7 2021-03-12 12:19:36 +02:00
Aliaksandr Valialkin
7c002023d7 app/vmselect/prometheus: do not include datapoints with timestamps matching t-d when returning results from /api/v1/query?query=m[d]&time=t as Prometheus does 2021-03-12 12:16:50 +02:00
Aliaksandr Valialkin
acdb401585 app/vmselect/prometheus: treat match query arg in the same way as match[] query arg 2021-02-11 15:02:21 +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
b43b498fd8 app/vmselect: add ability to pass extra_label=<label>=<value> query arg to Prometheus Querying API 
This enforced `{label="value"}` label filter to the query.

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1021
 2021-02-01 18:04:17 +02:00
Aliaksandr Valialkin
8749c2dd92 app/vmselect: add -search.maxStepForPointsAdjustment command-line flag, which can be used for disabling adjustment for points returned from /api/v1/query_range handler if they have timestamps closer than -search.latencyOffset to the current time 2021-01-19 22:56:32 +02:00
Aliaksandr Valialkin
4b7105a65b app/vmselect: sync query stats handling with cluster version 2020-12-27 13:00:29 +02:00
Aliaksandr Valialkin
59183f66d0 app/vmselect: refactor /api/v1/stats/top_queries 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/907
 2020-12-25 16:44:29 +02:00
Nikolay
86630350bf
Adds query stats handler (#945) 
* Adds query stat handler,
for query and query_range api, victoriametrics tracks query execution time,
stats are expored at /api/v1/status/queries endpoint with topN param
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/907

* fixed query stats bugs

* improves queryStats tracker

* improves query stat

* small fix

* fix tests

* added more tests

* fixes 386 tests

* naming fixes

* adds drop for outdated records
 2020-12-25 16:42:05 +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
266788be14 app/vmselect: use storage.NewSearchQuery() instead of constructing storage.SearchQuery in-place 
This should prevent from bugs when AccountID and ProjectID aren't set in storage.SearchQuery.
 2020-11-16 18:24:00 +02:00
Aliaksandr Valialkin
3c1434118e app/vmselect/prometheus: return __name__ label if match[] query to /api/v1/labels matches at least a single time series 2020-11-16 13:54:34 +02:00
Aliaksandr Valialkin
27a417bcd3 app/vmselect/prometheus: improve performance for /api/v1/labels and /api/v1/label/<labelName>/values on time ranges exceeding one day when match[] query arg is set 2020-11-16 13:51:59 +02:00
Aliaksandr Valialkin
6fa806f1ca app/vmselect/prometheus: fix deadlock in /api/v1/series on a time range exceeding one day 2020-11-16 13:30:47 +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
47a038401b all: consistently return text-based HTTP responses with charset=utf-8 
This is a follow-up for https://github.com/VictoriaMetrics/VictoriaMetrics/pull/897
 2020-11-13 10:35:41 +02:00
Aliaksandr Valialkin
368b69b4c4 app/vmselect: properly handle errors in GetLabelsOnTimeRange and GetLabelValuesOnTimeRange 2020-11-05 01:38:38 +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
1e27420243 app/vmselect/prometheus: fix golangci-lint warning 2020-10-13 09:36:11 +03:00
Aliaksandr Valialkin
4f16a964e3 app/vmselect: add ability to export data in CSV format via /api/v1/export/csv 2020-10-12 20:08:17 +03:00
Aliaksandr Valialkin
96ee276e6e app/vmselect/prometheus: check for errors returned from bufferedwriter.Write 
This makes `make errcheck` happy
 2020-09-29 11:37:01 +03:00
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
27500d7d4c app/vmselect/prometheus: code cleanup after 3ba507000c 2020-09-23 13:04:17 +03:00
Aliaksandr Valialkin
3ba507000c app/vmselect/prometheus: return timestamps from /api/v1/query, which match the time query arg 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/720
 2020-09-23 12:58:48 +03:00
Aliaksandr Valialkin
8c3d7c1a59 app/vmselect: typo fix in -search.maxStalenessInterval description 2020-09-15 14:24:27 +03:00
Aliaksandr Valialkin
a2f647d142 app/vmselect/prometheus: typo fix in the description for -search.latencyOffset command-line flag 2020-09-11 14:16:46 +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
147c35ebd4 all: allow using KB, MB, GB, KiB, MiB and GiB suffixes in command-line flag values related to byte sizes or byte rates 2020-08-16 17:05:52 +03:00
Aliaksandr Valialkin
e969ef2639 app/vmselect: reduce memory usage when exporting time series with big number of samples via /api/v1/export if max_rows_per_line is set to non-zero value 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/685
 2020-08-10 20:57:36 +03:00
Aliaksandr Valialkin
509d12643b app/vmselect: show X-Forwarded-For contents on /api/v1/status/active_queries page 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/659
 2020-07-31 20:05:18 +03:00
Aliaksandr Valialkin
79c30cf4cb app/vmselect: show query origin (aka remote_addr or client address) on the /api/v1/status/active_queries page for every query 2020-07-28 15:13:08 +03:00
Aliaksandr Valialkin
4f526cc816 app/vmselect/prometheus: support d, w and y suffixes for durations passed to step in /api/v1/query_range like Prometheus does 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/641
 2020-07-22 16:26:18 +03:00
Aliaksandr Valialkin
caa2952aa6 app/vmselect: take into account the time spent in wait queue before query execution as time spent on the query 2020-07-21 19:00:09 +03:00
Aliaksandr Valialkin
5a4675c528 app/vmselect/prometheus: do not return time series with empty list of datapoints from /api/v1/query_range 
This matches Prometheus behaviour.

This should fix https://github.com/jacksontj/promxy/issues/329
 2020-07-20 15:31:21 +03:00
Aliaksandr Valialkin
25f80d320b app/vmselect/prometheus: do not adjust last points in time series with timestamps exceeding the current time 
Such timestamps usually mean that the query contains `offset`.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/625
 2020-07-14 12:52:16 +03:00
Aliaksandr Valialkin
acf828a759 app/vmselect/prometheus: small fixes on top of 8bb762124a 2020-07-05 18:17:06 +03:00
faceair
8bb762124a
fix adjust last points avoid influence earlier value (#606) 2020-07-05 17:56:54 +03:00
Aliaksandr Valialkin
d5dddb0953 all: use %w instead of %s for wrapping errors in fmt.Errorf 
This will simplify examining the returned errors such as httpserver.ErrorWithStatusCode .
See https://blog.golang.org/go1.13-errors for details.
 2020-06-30 23:05:11 +03:00
Aliaksandr Valialkin
0afd48d2ee lib: extract common code for returning fast unix timestamp into lib/fasttime 2020-05-14 23:02:07 +03:00
Aliaksandr Valialkin
4e4f57b121 lib/metricsql: move it to a separate repository - github.com/VictoriaMetrics/metrics 2020-04-28 15:28:22 +03:00
Aliaksandr Valialkin
364db13c9c app/vmselect: add /api/v1/status/tsdb page with useful stats for locating root cause for high cardinality issues 
See https://prometheus.io/docs/prometheus/latest/querying/api/#tsdb-stats

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/425
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/268
 2020-04-22 22:03:43 +03:00
Aliaksandr Valialkin
9ebc937685 app/vmselect: add -search.minStalenessInterval command-line flag for removing gaps on graphs built from time series with irregular duration between samples 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/426
 2020-04-20 19:42:15 +03:00
Aliaksandr Valialkin
fe57d46687 app/vmselect: merge -search.maxLookback and -search.maxStalenessInterval flags, since it has been appeared they have identical purpose :( 
Leave both flags for backwards compatibility reasons.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/209
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/426
 2020-04-20 19:26:31 +03:00
Aliaksandr Valialkin
f41e6a7bd9 app/vmselect: properly apply -search.maxLookback to queries sent to /api/v1/query 2020-04-17 12:30:11 +03:00
Aliaksandr Valialkin
0c485f14d1 app/vmselect/prometheus: allow passing relative time to start, end and time args of /api/v1/* queries 2020-03-29 21:57:14 +03:00
Aliaksandr Valialkin
2ebf7d86ff app/vmselect/prometheus: code simplification: (d.Seconds()/1e3) -> d.Milliseconds() 2020-03-29 21:50:28 +03:00
Aliaksandr Valialkin
e17702fada app/vmselect: add optional max_rows_per_line query arg to /api/v1/export 
This arg allows limiting the number of data points that may be exported on a single line.
 2020-03-10 21:45:56 +02:00
Aliaksandr Valialkin
7d178a40bd app/vmselect/prometheus: do not add __name__!= filter when searching for all the matching metric names via /api/v1/label/__name__/values with non-empty label filter 
This should reduce query time.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/343
 2020-02-28 23:35:55 +02:00
Aliaksandr Valialkin
5701b2f7bb app/vmselect/prometheus: properly pass filter for labelName=__name__ in labelValuesWithMatches 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/343
 2020-02-28 12:18:14 +02:00
Aliaksandr Valialkin
36a1ac8360 app/vmselect: take into account the time the requests wait in the queue if -search.maxConcurrentRequests is exceeded 
This will prevent from excess CPU usage for timed out queries.
 2020-02-04 16:15:08 +02:00
Aliaksandr Valialkin
42864bb52f all: do not clash flag description with back-quoted flag types 
See https://golang.org/pkg/flag/#PrintDefaults for more details.
 2020-02-04 15:46:52 +02:00
Aliaksandr Valialkin
9773022e50 app/vmselect: mention the original query and time range in error messages 
This should simplify debugging invalid or heavy queries.
 2020-01-22 17:36:36 +02:00
Aliaksandr Valialkin
efc7ad88ec app/vmselect: mention command-line flag, which could be used for adjusting query timeouts, in timeout errors 2020-01-22 15:50:48 +02:00
Aliaksandr Valialkin
ec9651e266 app/vmselect/prometheus: increase default value -maxExportDuration to 30 days, since 10 minutes beat users exporting bit amounts of data 2020-01-22 15:50:47 +02:00
Aliaksandr Valialkin
0d7505b00e all: mention command-line flags used for limiting the incoming request size in error messages 
This should improve error logs usability.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/287
 2020-01-16 13:03:30 +02:00
Aliaksandr Valialkin
1925ee038d Rename lib/promql to lib/metricsql and apply small fixes 2019-12-25 22:03:59 +02:00
Aliaksandr Valialkin
bea5a8700a app/vmselect: add -search.maxExportDuration command-line flag for limiting /api/v1/export duration 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/275
 2019-12-20 11:35:22 +02:00
Aliaksandr Valialkin
96ff8d9adb app/vmselect: add ability to pass match[], start and end to /api/v1/labels 
This makes the `/api/v1/labels` handler consistent with already existing functionality for `/api/v1/label/.../values`.

See https://github.com/prometheus/prometheus/issues/6178 for more details.
 2019-12-15 00:20:50 +02:00
Aliaksandr Valialkin
caa4eb72d9 app/vmselect/promql: return matrix instead of vector on subqueries to /api/v1/query like Prometheus does 2019-12-11 01:00:26 +02:00
Aliaksandr Valialkin
3c076544bf app/vmselect/promql: allow negative offsets 
Updates https://github.com/prometheus/prometheus/issues/6282
 2019-12-11 01:00:23 +02:00
Aliaksandr Valialkin
4c859d980c app/vmselect/prometheus: consistently apply nocache arg to /api/v1/query the same way ast to /api/v1/query_range 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/241
 2019-11-26 22:55:43 +02:00
Aliaksandr Valialkin
110235f789 app/vmselect/prometheus: fix content-type for /api/v1/export responses 
The correct Content-Type should be `application/stream+json` instead of `application/json`
Thanks to Joshua Ryder for pointing to this.
 2019-11-26 17:45:26 +02:00
Aliaksandr Valialkin
3f99f39e9b app/vmselect/prometheus: reduce default value for -search.latencyOffset from 60s to 30s 
30 seconds should be enough for almost all the cases
 2019-11-25 16:33:42 +02:00
Aliaksandr Valialkin
1f3fd2c910 app/vmselect: adjust end arg instead of adjusting start arg if start > end 
`start` arg has higher chances to be set properly comparing to `end` arg,
so it is expected that the `end` arg could be adjusted if it was set incorrectly.
 2019-11-22 16:12:19 +02:00
Aliaksandr Valialkin
0094bc4fc9 app/vmselect/prometheus: properly adjust too big time time on /api/v1/query 
Too big `time` must be adjusted to `now()-queryOffset`.
 2019-11-19 00:42:00 +02:00
Oleg Kovalov
b4f44befa3 fix misspelled words (#229) 2019-11-12 00:16:42 +02:00
Aliaksandr Valialkin
b0295dbf2e app/vmselect: add -search.latencyOffset flag for tuning the time after data collection when data points become visible in query results 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/218
 2019-10-28 12:31:07 +02:00
Aliaksandr Valialkin
c66a691593 app/vmselect/prometheus: add -search.maxLookback command-line flag for overriding dynamic calculations for max lookback interval 
This flag is similar to `-search.lookback-delta` if set. The max lookback interval is determined dynamically
from interval between datapoints for each input time series if the flag isn't set.

The interval can be overriden on per-query basis by passing `max_lookback=<duration>` query arg to `/api/v1/query` and `/api/v1/query_range`.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/209
 2019-10-15 21:31:48 +03:00
Aliaksandr Valialkin
9721d06c6a app/vmselect/prometheus: do not adjust start and end args in /api/v1/query_range if nocache=1 arg is set 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/171
 2019-09-04 13:10:09 +03:00
Aliaksandr Valialkin
7b5168adfb app/vmselect/promql: remove NaNs from /api/v1/query_range output like Prometheus does 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/153
 2019-08-20 23:01:41 +03:00
Aliaksandr Valialkin
99e048c9df app/vmselect: allow passing match[], start and time to /api/v1/label/<label_name>/values 
`/api/v1/label/<label_name>/values?match[]=q` emulates emulates `label_values(q, <label_name>)`
call in Grafana templating.
 2019-08-04 23:09:21 +03:00
Aliaksandr Valialkin
47e4b50112 app/vmselect: optimize /api/v1/series by skipping storage data 
Fetch and process only time series metainfo.
 2019-08-04 23:01:28 +03:00
Aliaksandr Valialkin
241170dc05 app/vmselect/prometheus: prevent from fetching and scanning all the data on /api/v1/searies call by default 2019-08-04 19:42:36 +03:00
Aliaksandr Valialkin
ab88890523 app/vmselect/promql: parallelize incremental aggregation to multiple CPU cores 
This may reduce response times for aggregation over big number of time series
with small step between output data points.
 2019-07-12 15:52:22 +03:00
Aliaksandr Valialkin
62a7353479 app/vmselect/prometheus: set start arg in /api/v1/series to the minimum allowed time by default as Prometheus does 
Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/91
 2019-07-11 17:10:14 +03:00
Aliaksandr Valialkin
54bd21eb4a app/vmselect/prometheus: convert negative times to 0, since they arent supported by the storage 2019-07-11 17:07:20 +03:00
Aliaksandr Valialkin
1371024747 app/vmselect/prometheus: handle minTime and maxTime values that may be set by Promxy or Prometheus client 
Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/88
 2019-07-07 21:53:48 +03:00
Aliaksandr Valialkin
9a4b2b8315 app/vmselect/prometheus: update adjustLastPoints function 
- Do not overwrite last points by the previous NaNs, since this may result in empty time series.
- Overwrite the last 2 points instead of 3. This should be enough in most cases.
 2019-07-04 09:14:18 +03:00
Aliaksandr Valialkin
b9166a60ff app/vmselect: do not return empty time series in /api/v1/query result 2019-07-01 17:16:34 +03:00