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170 commits

Author SHA1 Message Date
Aliaksandr Valialkin
7532dbcdf5 app/vmselect/promql: properly override label values from group_left and group_right lists like Prometheus does 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/577
 2020-06-21 16:33:01 +03:00
Aliaksandr Valialkin
88e1b7d144 app/vmselect/promql: fill gaps on right side with values from left side of or operator in the same way as Prometheus does 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/552
 2020-06-18 23:05:16 +03:00
Aliaksandr Valialkin
dbd8beccfa app/vmselect/promql: add ascent_over_time(m[d]) and descent_over_time(m[d]) functions 
These functions could be useful in GPS tracking apps for calculating the summary for height gain/loss
over the given duration `d`.
 2020-05-21 12:07:48 +03:00
Aliaksandr Valialkin
70ea4e28a7 app/vmselect/promql: update numbers after the upgrade of github.com/VictoriaMetrics/metrics from v1.11.2 to v1.11.3 2020-05-20 03:06:23 +03:00
Aliaksandr Valialkin
538fdfe133 app/vmselect/promql: move common code from aggrFuncOutliersK and newAggrFuncRangeTopK into getRangeTopKTimeseries 2020-05-19 16:11:14 +03:00
Aliaksandr Valialkin
f52769f6ee app/vmselect/promql: fix outilersk calculations 2020-05-19 14:44:53 +03:00
Aliaksandr Valialkin
a441cdd1d9 app/vmselect/promql: add outliersk(N, m) aggregate function for anomaly detection across groups of similar time series 2020-05-19 13:52:36 +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
7882a0dbbf app/vmselect/promql: suppress "SA4006: this value of dstValues is never used" error in golangci-lint 2020-05-13 11:47:08 +03:00
Aliaksandr Valialkin
faf92a0965 app/vmselect/promql: fix any(..) calculations - return all the data points instead of the first one 2020-05-12 20:36:42 +03:00
Aliaksandr Valialkin
cc311e20fe app/vmselect/promql: add any(x) by (y) aggregate function, which returns any time series from q for each group y 2020-05-12 19:45:56 +03:00
Aliaksandr Valialkin
574289c3fb app/vmselect/promql: support for sum(x) by (y) limit N syntax in order to limit the number of output time series after aggregation 2020-05-12 19:45:54 +03:00
Aliaksandr Valialkin
57407cca83 app/vmselect/promql: remove -search.maxPointsPerTimeseries command-line flag 
Limit the estimated time series count after aggregation with grouping by the number of source time series.
 2020-04-29 00:20:04 +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
17d96e4503 app/vmselect: add -search.estimatedSeriesCountAfterAggregation command-line flag for tuning the probability of OOMs vs false-positive not enough memory errors 2020-04-28 12:52:37 +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
6f7f64f757 app/vmselect: handle timestamp(metric offset X) the same way as Prometheus does 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/415
 2020-04-15 12:01:00 +03:00
Aliaksandr Valialkin
f9b24d4899 app/vmselect/promql: keep metric name after applying first_over_time and last_over_time functions 2020-04-04 14:54:13 +03:00
Aliaksandr Valialkin
3c7c71a49c app/vmselect: adjust label_map() handling for corner cases 
The following corner cases now supported:
* label_map(q, "label", "", "foo") - adds `label="foo"` to series with missing `label`
* label_map(q, "label", "foo", "") - removes `label="foo"` from series

All the unmatched labels are kept unchanged.
 2020-03-13 18:45:03 +02:00
Aliaksandr Valialkin
fdc2a9d1d7 app/vmselect: add label_map(q, label, srcValue1, dstValue1, ... srcValueN, dstValueN) function to MetricsQL 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/369
 2020-03-12 19:13:47 +02:00
Aliaksandr Valialkin
8023ad7dbd app/vmselect: add -search.maxStalenessInterval for tuning Prometheus data model closer to Influx-style data model 2020-03-11 16:43:34 +02:00
Aliaksandr Valialkin
c5f894b361 Makefile: add build and test rules with enabled race detector. These rules have -race suffix 
Fix also `unsafe pointer conversion` errors detected by Go1.14. See https://golang.org/doc/go1.14#compiler .
 2020-03-05 12:03:38 +02:00
Aliaksandr Valialkin
ae51300973 app/vmselect/promql: properly take into account the first datapoint when calculating rollup_candlestick 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/309
 2020-02-24 13:24:30 +02:00
Aliaksandr Valialkin
e65ec88779 app/vmselect/promql: do not take into account values outside the current window in rollup_candlestick 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/309
 2020-02-23 18:03:57 +02:00
Yaroslav
a6d0645539
fix rollupOpen(), rollupHigh(), rollupLow() functions (#328) 2020-02-23 18:01:53 +02:00
Aliaksandr Valialkin
2f55cabaa4 app/vmselect/promql: log when rollupResult cache is cleared 2020-02-21 20:07:01 +02:00
Aliaksandr Valialkin
ec9bf39b5b app/vmselect: add -search.cacheTimestampOffset command-line flag 
This flag can be used for removing gaps on graphs if the difference between the current time
and the timestamps from the ingested data exceeds 5 minutes.

This is the case when the time between data sources and VictoriaMetrics is improperly synchronized.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/312
 2020-02-21 13:58:06 +02:00
Aliaksandr Valialkin
7b1c7051a3 app/vmselect: add sort_by_label(q, label) and sort_by_label_desc(q, label) functions 
This is implementation of https://github.com/prometheus/prometheus/pull/1533 for VictoriaMetrics.
 2020-02-13 17:01:37 +02:00
Aliaksandr Valialkin
a6c6a2debc app/vmselect/promql: do not add step to range end, since this hack became obsolete since commit 9e1119dab8 2020-02-05 21:22:19 +02:00
Aliaksandr Valialkin
78b62dee87 app/vmselect/promql: properly adjust time range for data to select 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/309
 2020-02-05 21:22:18 +02:00
Aliaksandr Valialkin
366693b9f1 app/vmselect: unconditionally offset -step to rollup_candlestick. This makes results more consistent 2020-02-04 23:32:12 +02:00
Aliaksandr Valialkin
525101339e app/vmselect/promql: automatically apply offset -step to rollup_candlestick function in order to obtain the expected OHLC results 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/309
 2020-02-04 23:24:35 +02:00
Aliaksandr Valialkin
ada6a3da8d app/vmselect/promql: adjust rollup_candlestick calculations to the exepcted results 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/309
 2020-02-04 22:42:13 +02:00
Aliaksandr Valialkin
90cf356ea1 app/vmselect/promql: adjust and and unless binary operator handling to be consistent with Prometheus 2020-01-31 18:52:38 +02:00
Aliaksandr Valialkin
a462355b2f app/vmselect/promql: add keep_next_value(q) for filling gaps with the next non-empty value 2020-01-29 00:48:04 +02:00
Aliaksandr Valialkin
adbbc4fa1a app/vmselect/promql: return expected results from increase() over the beginning of time series, which start from big value 
Examples for such counters: OS-level counters for network or cpu stats.
 2020-01-28 16:30:11 +02:00
Aliaksandr Valialkin
2392a359e1 app/vmselect/promql: fix panic on a single zero vmrange bucket in prometheus_buckets() function 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/296
 2020-01-27 18:04:55 +02:00
Aliaksandr Valialkin
680080887d all: consistently log durations in seconds with millisecond precision 
This should improve logs readability
 2020-01-22 18:28:27 +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
582dd01f42 app/vmselect/promql: add range_over_time(m[d]) function for calculating value range for m over d 2020-01-21 19:05:17 +02:00
Aliaksandr Valialkin
36973ee975 app/vmselect/promql: add label_match(q, label, regexp) and label_mismatch(q, label, regexp) functions for filtering out time series with labels matching the given regexp 2020-01-21 15:00:20 +02:00
Aliaksandr Valialkin
2839f4688a app/vmselect/promql: fix panic on sum(aggr_over_time(...)) with incorrect number of args 2020-01-15 16:26:09 +02:00
Aliaksandr Valialkin
8b14572f70 app/vmselect/promql: add hoeffding_bound_upper(phi, m[d]) and hoeffding_bound_lower(phi, m[d]) functions 
These functions can be used for calculating Hoeffding bounds
for `m` over `d` time range and for the given `phi` in the range `[0..1]`.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/283
 2020-01-11 14:46:23 +02:00
Aliaksandr Valialkin
8eaced8cae app/vmselect/promql: return continuous values for min_over_time and max_over_time when step is smaller than scrape_interval 2020-01-11 12:47:50 +02:00
Aliaksandr Valialkin
46bfdbe6cf app/vmselect/promql: do not take into account the previous point before time window in square brackets for min_over_time, max_over_time, rollup_first and rollup_last functions 
This makes the behaviour for these functions similar to Prometheus when processing broken time series with irregular data points
like `gitlab_runner_jobs`. See https://gitlab.com/gitlab-org/gitlab-exporter/issues/50 for details.
 2020-01-11 00:26:26 +02:00
Aliaksandr Valialkin
b829fe5e39 app/vmselect/promql: properly handle aggr(aggr_over_time(...)) 2020-01-10 21:57:18 +02:00
Aliaksandr Valialkin
164278151f app/vmselect/promql: add aggr_over_time(("aggr_func1", "aggr_func2", ...), m[d]) function 
This function can be used for simultaneous calculating of multiple `aggr_func*` functions
that accept range vector. For example, `aggr_over_time(("min_over_time", "max_over_time"), m[d])`
would calculate `min_over_time` and `max_over_time` for `m[d]`.
 2020-01-10 21:18:06 +02:00
Aliaksandr Valialkin
c4632faa9d app/vmselect/promql: add tmin_over_time(m[d]) and tmax_over_time(m[d]) functions 
These functions return timestamp in seconds for the minimum and maximum value for `m` over time range `d`
 2020-01-10 19:39:28 +02:00
Aliaksandr Valialkin
d5aeda0e1a app/vmselect/promql: skip rate calculation for the first point on time series 2020-01-08 14:42:53 +02:00