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42 commits

Author SHA1 Message Date
Aliaksandr Valialkin
d23df53ba2 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 23:36:38 +02:00
Aliaksandr Valialkin
8fa1cd24d8 app/vmselect/prometheus: properly pass filter for labelName=__name__ in labelValuesWithMatches 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/343
 2020-02-28 12:17:30 +02:00
Aliaksandr Valialkin
6e0013ca39
app/vmselect/prometheus: typo fix in -latencyOffset description 2020-02-12 14:00:38 +02:00
Aliaksandr Valialkin
ccd3aa4f15 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 16:20:48 +02:00
Aliaksandr Valialkin
7cde594696 all: do not clash flag description with back-quoted flag types 
See https://golang.org/pkg/flag/#PrintDefaults for more details.
 2020-02-04 15:56:01 +02:00
Aliaksandr Valialkin
e1a264173a app/vmselect: mention the original query and time range in error messages 
This should simplify debugging invalid or heavy queries.
 2020-01-22 17:34:35 +02:00
Aliaksandr Valialkin
e127173984 app/vmselect: mention command-line flag, which could be used for adjusting query timeouts, in timeout errors 2020-01-22 15:53:42 +02:00
Aliaksandr Valialkin
f3b9f8b823 app/vmselect/prometheus: increase default value -maxExportDuration to 30 days, since 10 minutes beat users exporting bit amounts of data 2020-01-22 15:53:41 +02:00
Aliaksandr Valialkin
4b16b7fd11 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 13:06:43 +02:00
Aliaksandr Valialkin
453d71d082 Rename lib/promql to lib/metricsql and apply small fixes 2019-12-25 22:09:09 +02:00
Aliaksandr Valialkin
cc8a1bae0e 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 11:37:18 +02:00
Aliaksandr Valialkin
6a185b7809 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 00:20:43 +02:00
Aliaksandr Valialkin
f79b61e2a1 app/vmselect/promql: return matrix instead of vector on subqueries to /api/v1/query like Prometheus does 2019-12-11 00:57:54 +02:00
Aliaksandr Valialkin
5d2ff573aa app/vmselect/promql: allow negative offsets 
Updates https://github.com/prometheus/prometheus/issues/6282
 2019-12-11 00:57:51 +02:00
Aliaksandr Valialkin
def9ccd360 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 22:55:50 +02:00
Aliaksandr Valialkin
e0ac068112 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 17:44:27 +02:00
Aliaksandr Valialkin
8811bec14e 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 16:33:36 +02:00
Aliaksandr Valialkin
17d08c1fe0 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 16:12:53 +02:00
Aliaksandr Valialkin
5ae47e8940 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 00:42:07 +02:00
Oleg Kovalov
74ba42d111 fix misspelled words (#229) 2019-11-12 00:18:24 +02:00
Aliaksandr Valialkin
4e6bf6f538 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 12:32:36 +02:00
Aliaksandr Valialkin
99786c2864 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 21:37:17 +03:00
Aliaksandr Valialkin
a7d5d611fe 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 13:10:17 +03:00
Aliaksandr Valialkin
db1de4277c 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 23:01:59 +03:00
Aliaksandr Valialkin
53c8f56436 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 23:07:00 +03:00
Aliaksandr Valialkin
880b1d80b1 app/vmselect: optimize /api/v1/series by skipping storage data 
Fetch and process only time series metainfo.
 2019-08-04 23:00:46 +03:00
Aliaksandr Valialkin
7f5afae1e3 app/vmselect/prometheus: prevent from fetching and scanning all the data on /api/v1/searies call by default 2019-08-04 19:42:45 +03:00
Aliaksandr Valialkin
6875fb411a 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 15:53:12 +03:00
Aliaksandr Valialkin
4a8e6f47fe 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 17:11:37 +03:00
Aliaksandr Valialkin
3313cdf816 app/vmselect/prometheus: convert negative times to 0, since they arent supported by the storage 2019-07-11 17:11:35 +03:00
Aliaksandr Valialkin
36636c1f6f 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 21:53:52 +03:00
Aliaksandr Valialkin
512a627855 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 09:30:56 +03:00
Aliaksandr Valialkin
a3abed80ff app/vmselect: do not return empty time series in /api/v1/query result 2019-07-01 17:16:26 +03:00
Aliaksandr Valialkin
c3c60bee45 app/vmselect: add -search.denyPartialResponse flag for disabling partial responses if some of vmstorage nodes are unavailable 
Also accept `deny_partial_response` query arg in Prometheus API handlers. If it is set to true,
then return error if some of vmstorage nodes are unavailable.
 2019-06-30 01:27:07 +03:00
Aliaksandr Valialkin
391bc8bf38 app/vmselect: fix 32bit arm build 
Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/83
 2019-06-27 19:37:17 +03:00
Aliaksandr Valialkin
a3a53647ba app/vmselect/prometheus: return better error messages on missing args to /api/v1/* 2019-06-20 14:07:44 +03:00
Aliaksandr Valialkin
e40224d5de lib/flagutil: add NewArray helper func 2019-06-18 10:44:09 +03:00
Aliaksandr Valialkin
75a0acf72d app/vmselect: add /api/v1/labels/count handler for quick detection of labels with the maximum number of distinct values 2019-06-10 19:54:55 +03:00
Aliaksandr Valialkin
11979e4d85 app/vmselect/prometheus: report about incorrect time or duration instead of silently using the default value 
This should prevent from incorrect usage of the querying API.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/52
 2019-06-06 22:17:15 +03:00
Aliaksandr Valialkin
628708ad76 app/vmselect: consume resultsCh data in exportHandler if writeResponseFunc failed to consume it 2019-05-24 14:54:54 +03:00
Aliaksandr Valialkin
24578b4bb1 all: open-sourcing cluster version 2019-05-23 00:25:38 +03:00
Aliaksandr Valialkin
1836c415e6 all: open-sourcing single-node version 2019-05-23 00:18:06 +03:00