912 commits

Author	SHA1	Message	Date
Aliaksandr Valialkin	d9d01f976b	app/vmselect/promql: remove spikes from increase() and delta() results on time series with spare irregular data points ... Do not take into account spare data point value if the next point will is located too far from the current point. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/894	2020-11-13 15:23:44 +02:00
Aliaksandr Valialkin	1f19c167a4	app/vmselect/promql: assume that time series value doesnt change during gaps when calculating increase() and delta() ... This should remove unexpected spikes at the end of gaps. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/894	2020-11-13 14:59:24 +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	348edd92fe	app/vmselect: add -search.treatDotsAsIsInRegexps command-line flag for automatic escaping of dots in regexp label filters	2020-11-11 12:39:07 +02:00
Aliaksandr Valialkin	47390d8947	app/vmselect/promql: do not return data points in the end of the selected time range for time series ending in the middle of the selected time range ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/887 Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/845	2020-11-10 14:51:44 +02:00
Aliaksandr Valialkin	ba4a2c8bca	app/vmselect: typo fix in a description for -search.minStalenessInterval: mimimum->minimum	2020-11-10 01:18:08 +02:00
Aliaksandr Valialkin	dd6bfa50e9	app/vmselect/promql: code cleanup after 43823addea	2020-11-06 01:30:50 +02:00
n4mine	43823addea	app/vmselect/promql: fix when the parameter of maxValue(), minValue() leading by NaN. it will cause {top,bottom}k_{max,min} return inappropriate result (#883)	2020-11-06 01:29:24 +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	caeb74f068	app/vmselect: reduce memory usage when query touches big number of time series	2020-11-04 17:04:04 +02:00
Aliaksandr Valialkin	5e75c389e6	app/vmselect/promql: allow dropping trailing sample only for default_rollup function ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/850	2020-11-02 02:10:59 +02:00
Aliaksandr Valialkin	cb71af216a	app/vmselect/promql: go fmt	2020-11-02 00:15:29 +02:00
Aliaksandr Valialkin	daacbc7e34	app/vmselect/promql: do not drop trailing datapoints for instant queries ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/845 Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/748	2020-11-02 00:12:37 +02:00
Aliaksandr Valialkin	c539494b36	app/vmselect/promql: allow passing optional third argument to topk_* and bottomk_* functions in order to obtain sum of time series outside top/bottom K	2020-11-01 23:35:06 +02:00
Aliaksandr Valialkin	28353e48ca	app/vmselect/promql: an attempt to improve heuristics for dropping trailing data points in time series ... Now trailing data points are additionally dropped for time series with a single raw sample Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/748	2020-10-17 10:44:34 +03:00
Aliaksandr Valialkin	a2b9476897	app/vmselect/promql: return a single time series at max from absent() function like Prometheus does	2020-10-13 15:56:04 +03:00
Aliaksandr Valialkin	9aa3b65766	app/vmselect/promql: improve time series staleness detection ... This should prevent from double counting for time series at the time when it changes label. The most common case is in K8S, which changes pod uid label with each new deployment. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/748	2020-10-13 12:19:57 +03:00
Aliaksandr Valialkin	d8af290947	app/vmselect/promql: fix mode_over_time calculations ... Previously `mode_over_time` could return garbage due to improper shuffling of input data points.	2020-10-13 11:58:25 +03:00
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	762c967855	app/vmselect/promql: keep metric name after applying more functions, which dont change time series meaning ... Functions are: * keep_last_value * keep_next_value * interpolate * running_min * running_max * running_avg * range_min * range_max * range_avg * range_first * range_last * range_quantile * smooth_exponential Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/674	2020-10-12 11:47:06 +03:00
Aliaksandr Valialkin	45f7cdc532	Revert "app/vmselect/promql: remove metric name after applying ceil, floor and round functions in order to be more consistent with Prometheus" ... This reverts commit ac45082216. Reason for revert: the previous behavior for VictoriaMetrics is easier to understand and use by users - functions, which don't change the meaning of the time series shouldn't drop metric name. Now the following functions do not drop metric names: * ceil * floor * round Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/674	2020-10-12 11:40:34 +03:00
Aliaksandr Valialkin	a94825b169	Revert "app/vmselect/promql: remove metric name after applying clamp_min and clamp_max functions in order to be consistent with Prometheus" ... This reverts commit bb61a4769b. Reason for revert: the previous behavior for VictoriaMetrics is easier to understand and use by users - functions, which don't change the meaning of the time series shouldn't drop metric name. Now the following functions do not drop metric name: * clamp_min * clamp_max Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/674	2020-10-12 11:38:27 +03:00
Aliaksandr Valialkin	f7d28bddbf	Revert "app/vmselect/promql: remove metric name from results of certain rollup functions in order to be consistent with Prometheus" ... This reverts commit e5202a4eae. Reason for revert: the previous behavior for VictoriaMetrics is easier to understand and use by users - functions, which don't change the meaning of the time series shouldn't drop metric name. Now the following functions do not drop metric name: * max_over_time * min_over_time * avg_over_time * quantile_over_time * geomean_over_time * mode_over_time * holt_winters * predict_linear Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/674	2020-10-12 11:35:18 +03:00
Aliaksandr Valialkin	e9f2e2cbc9	app/vmselect/promql: add missing label filters to binary operands before query execution ... This implements the optimization described at https://utcc.utoronto.ca/~cks/space/blog/sysadmin/PrometheusLabelNonOptimization See also https://github.com/cortexproject/cortex/issues/3253	2020-10-07 21:15:09 +03:00
Aliaksandr Valialkin	59c26feefa	app/vmselect/promql: fill gaps on graphs for range_* and running_* functions ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/806	2020-10-02 13:59:45 +03:00
Aliaksandr Valialkin	f7636b0342	app/vmselect/graphite: do not substitute path and path. with path.. in /metrics/find/?format=completer output	2020-09-29 18:03:26 +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	6fdfc67620	app/vmselect/graphite: properly handle case when /metrics/find finds both leaf and node for the given query=prefix.* ... In this case only node must be returned with stripped dot in the end of id as carbonapi does	2020-09-29 11:01:59 +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	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	c584aece38	app/vmselect/promql: properly limit implicitly set rollup window to -search.maxStalenessInterval ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/784	2020-09-23 23:23:59 +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	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	3b1e3a03e0	app/vmselect: make sure the request doesnt wait in pending queue more than the configured timeout ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/711	2020-09-22 01:23:19 +03:00
Aliaksandr Valialkin	00b5145c69	app/vmselect/searchutils: fixed tests after 2eb72e09ab	2020-09-21 21:31:38 +03:00
Aliaksandr Valialkin	2eb72e09ab	app/vmselect: use time value rounded to seconds if it isnt passed to /api/v1/query ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/720	2020-09-21 21:24:40 +03:00
Aliaksandr Valialkin	98d1cd0971	app/vmselect/graphite: return proper results /metrics/find?query=foo.*.bar according to Graphite Metrics API	2020-09-18 11:00:00 +03:00
Aliaksandr Valialkin	9f79bcf64a	app/vmselect: improve description for -search.maxQueryDuration	2020-09-16 21:15:41 +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	8c3d7c1a59	app/vmselect: typo fix in -search.maxStalenessInterval description	2020-09-15 14:24:27 +03:00
Aliaksandr Valialkin	0e533d1a9c	app/vmselect/promql: support composite durations like Prometheus 2.21 does ... The following durations are supported now: `1h5m35s` or `1s543ms` See https://github.com/prometheus/prometheus/releases/tag/v2.21.0 and https://github.com/prometheus/prometheus/pull/7713	2020-09-11 23:39:13 +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	2114179e19	app/vmselect: substitute inf values at smooth_exponential with the previous values ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/757	2020-09-11 12:24:14 +03:00
Aliaksandr Valialkin	204ec415b4	app/vmselect: skip infinite values when calculating smooth_exponential ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/757	2020-09-11 11:29:58 +03:00
Aliaksandr Valialkin	8a8b5a73d3	app/vmselect/graphite: typo fix in label name for vm_request_duration_seconds metric	2020-09-11 01:58:28 +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	62919eaf7e	app/vmselect/promql: go fmt	2020-09-08 15:19:59 +03:00
Aliaksandr Valialkin	e6da63dffe	app/vmselect/promql: adjust integrate() calculations to be more similar to calculations from InfluxDB: attempt #2 ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/701	2020-09-08 14:35:50 +03:00
Aliaksandr Valialkin	8e85b56737	app/vmselect/promql: adjust integrate() calculations to be more similar to calculations from InfluxDB ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/701	2020-09-08 14:23:39 +03:00
Aliaksandr Valialkin	c0343a661b	app/vmselect/promql: increase floating point calculations accuracy by dividing by 1e3 instead of multiplying by 1e-3	2020-09-08 14:00:47 +03:00
Aliaksandr Valialkin	f4e7e5fb90	app/vmselect/promql: add count_le_over_time(m[d], le) and count_gt_over_time(m[d], gt) functions ... These functions returns the number of raw samples that don't exceed `le` or are bigger than `gt`. These functions are complement to already existing `share_le_over_time(m[d], le)` and `share_gt_over_time(m[d], gt)`.	2020-09-03 15:29:10 +03:00
Aliaksandr Valialkin	e706e59d49	app/vmselect: unconditionally align time range boundaries to step for subqueries as Prometheus does	2020-09-03 13:29:50 +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	7d89fafe1a	app/vmselect/promql: allow passing multiple args to aggregate functions such as avg(q1, q2, q3)	2020-08-15 01:15:09 +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	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
Aliaksandr Valialkin	f3d33e23c9	app/vmstorage: improve error logging when the request times out	2020-08-10 13:23:26 +03:00
Aliaksandr Valialkin	716754fae6	app/vmselect/promql: properly handle -n^m like Prometheus does ... `-n^m` must be handled as `-(n^m)` instead of `(-n)^m`. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/675	2020-08-07 07:42:18 +03:00
Aliaksandr Valialkin	bb61a4769b	app/vmselect/promql: remove metric name after applying clamp_min and clamp_max functions in order to be consistent with Prometheus ... This improves VictoriaMetrics score at https://promlabs.com/promql-compliance-test-results-victoriametrics/	2020-08-06 23:42:37 +03:00
Aliaksandr Valialkin	ac45082216	app/vmselect/promql: remove metric name after applying ceil, floor and round functions in order to be more consistent with Prometheus ... This improves VictoriaMetrics score at https://promlabs.com/promql-compliance-test-results-victoriametrics/	2020-08-06 23:34:37 +03:00
Aliaksandr Valialkin	e5202a4eae	app/vmselect/promql: remove metric name from results of certain rollup functions in order to be consistent with Prometheus ... Rollup functions: - avg_over_time - min_over_time - max_over_time - quantile_over_time This improves VictoriaMetrics results at https://promlabs.com/promql-compliance-test-results-victoriametrics/	2020-08-06 23:29:13 +03:00
Aliaksandr Valialkin	68e4f40a72	app/vmselect: properly handle PromQL queries like scalar1 < metric < scalar2 like Prometheus does ... This fixes some cases from https://promlabs.com/promql-compliance-test-results-victoriametrics/	2020-08-06 23:21:03 +03:00
Aliaksandr Valialkin	bc8381613d	app/vmselect: reduce memory allocations by pre-allocatin memory for time series map and for a list of time series names	2020-08-06 19:17:58 +03:00
Aliaksandr Valialkin	3f85c06b65	app/vmselect/netstorage: reduce CPU contention when upacking time series blocks by unpacking batches of such blocks instead of a single block ... This should improve query performance on systems with big number of CPU cores (16 and more)	2020-08-06 17:50:17 +03:00
Aliaksandr Valialkin	d20c2156e4	app/vmselect/netstorage: reduce contention on unpackworkCh and timeseriesWorkCh for multi-CPU system by providing more capacity for these chans	2020-08-06 17:22:48 +03:00
Aliaksandr Valialkin	5d0c37bec0	app/vmselect: use warning level instead of info level for logging slow queries that take longer than -search.logSlowQueryDuration	2020-08-04 20:25:35 +03:00
Aliaksandr Valialkin	e6eee2bebf	app/vmselect/promql: add zscore-related functions: zscore_over_time(m[d]) and zscore(q) by (...)	2020-08-03 21:52:18 +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	f0c678c41b	app/vmselect: do not adjust start and end query args passed to /api/v1/query_range when -search.disableCache command-line flag is set ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/563	2020-07-30 23:14:37 +03:00
Aliaksandr Valialkin	328b52e5ff	app/vmselect/promql: return non-empty value from rate_over_sum(m[d]) even if a single data point is located in the given [d] window ... Just divide the data point value by the window duration in this case.	2020-07-29 12:37:58 +03:00
Aliaksandr Valialkin	700737c181	app/vmselect/promql: remove rollupFuncArg.realPrevValue handling, since the corner case in increase() is handled in another way now ... See e00cfc854d for the approach used now.	2020-07-29 12:37:58 +03:00
Aliaksandr Valialkin	2f735f112d	app/vmselect/promql: fill gaps with 0 in rate_over_sum response when the last value before the selected time window isnt empty	2020-07-29 12:37:58 +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	0da202023b	app/vmselect/promql: return empty values from group() if all the time series have no values at the given timestamp ... This aligns `group()` behaviour to Prometheus	2020-07-28 13:40:11 +03:00
Aliaksandr Valialkin	894dcb7c1c	app/vmselect/promql: improve further the accuracy of buckets_limit() function ... The accuracy is increased by mergin the smallest bucket with the smallest adjacent bucket.	2020-07-26 12:10:13 +03:00
Aliaksandr Valialkin	edb1eca6f1	app/vmselect/promql: avoid dropping inf bucket in buckets_limit ... The `le="inf"` bucket must be preserved in order to maintain the maximum level of accuracy.	2020-07-25 17:00:36 +03:00
Aliaksandr Valialkin	97b6f5d223	app/vmselect/promql: optimize buckets_limit(k, buckets) for big number of buckets	2020-07-25 13:24:03 +03:00
Aliaksandr Valialkin	bb161497cf	app/vmselect/promql: improve the accuracy of buckets_limit(k, buckets) function ... Now it properly merges the bucket with the previous bucket after deletion.	2020-07-24 17:07:49 +03:00
Aliaksandr Valialkin	994fa2f3bf	app/vmselect/promql: add buckets_limit(k, buckets) function, which limits the number of buckets per time series to k ... This function works with both Prometheus-style and VictoriaMetrics-style buckets. The function removes buckets with the lowest values in order to reserve the highest precision. The function is useful for building heatmaps in Grafana from too big number of buckets.	2020-07-24 16:13:53 +03:00
Aliaksandr Valialkin	e151c5c644	app/vmselect: fix tests for rate_over_sum	2020-07-24 02:35:28 +03:00
Aliaksandr Valialkin	3107c633e3	app/vmselect/promql: typo fix after 3e557c9861	2020-07-24 02:15:58 +03:00
Aliaksandr Valialkin	3e557c9861	app/vmselect/promql: add rate_over_sum(m[d]) function to MetricsQL, which returns rate over sum of m values over d duration ... Something like `sum_over_time(m[d]) / d`, but more accurate.	2020-07-24 01:17:42 +03:00
Aliaksandr Valialkin	b1f6843bd0	app/vmselect/promql: allow setting [d] window smaller than the interval between raw points for avg_over_time ... This makes `avg_over_time` behavior consistent with `sum_over_time` and `count_over_time` behaviors. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/636	2020-07-23 22:25:43 +03:00
Aliaksandr Valialkin	039c9d2441	lib/storage: respect -search.maxQueryDuration when searching for time series in inverted index ... Previously the time spent on inverted index search could exceed the configured `-search.maxQueryDuration`. This commit stops searching in inverted index on query timeout.	2020-07-23 21:21:42 +03:00
Aliaksandr Valialkin	2a45871823	lib/storage: add more fine-grained pace limiting for search	2020-07-23 19:26:08 +03:00
Aliaksandr Valialkin	461481fbdf	app/vmselect/netstorage: protect from too smart compiler, which may break memory usage optimization in ProcessSearchQuery	2020-07-23 17:54:01 +03:00
Aliaksandr Valialkin	e79de9774b	app/vmselect: typo fix after 34563916f7	2020-07-23 14:12:28 +03:00
Aliaksandr Valialkin	34563916f7	app/vmselect: reduce memory usage when querying big number of time series with long labels ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/646	2020-07-23 13:53:52 +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	dfb113f175	app/vmselect/netstorage: reduce memory allocations when unpacking time series data by using a pool for unpackWork entries ... This should slightly reduce load on GC when processing queries that touch big number of time series. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/646 according to the provided memory profile there.	2020-07-22 15:03:57 +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	e00cfc854d	app/vmselect/promql: skip the first value in time series passed to increase() if it exceeds by more than 10x the delta between the next value and the first value ... This should prvent from inflated `increase()` results for time series that start from big initial values. Such cases may occur when a label value changes in a metric without counter reset.	2020-07-21 17:24:10 +03:00
Aliaksandr Valialkin	b9c8f6bf34	app/vmselect: log the total available memory for concurrent requests on not enough memory errors ... This should simplify root cause analysis	2020-07-20 19:51:40 +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	ecb1b2564a	app/vmselect/promql: add mode() aggregate function	2020-07-20 15:31:20 +03:00
Aliaksandr Valialkin	b35cb293f5	lib/httpserver: log remote address in error message from httpserver.Errorf ... This should improve detection of the root cause of errors. Thanks to Anant for the idea.	2020-07-20 14:11:22 +03:00
Aliaksandr Valialkin	1c641037e8	app/vmselect/promql: add mode_over_time(m[d]) function ... See https://en.wikipedia.org/wiki/Mode_(statistics) and https://stackoverflow.com/questions/61134078/promql-query-to-return-the-value-from-a-range-vector-which-occurs-maximum-no-of	2020-07-17 18:28:45 +03:00
Aliaksandr Valialkin	6b5ad535ae	app/vmselect/promql: optimize group(rollup(m)) calculations	2020-07-17 16:47:16 +03:00
Aliaksandr Valialkin	8949d65ad1	app/vmselect/promql: check that any() doesn't touch metric name	2020-07-17 16:23:21 +03:00
Aliaksandr Valialkin	aa5d88055d	app/vmselect/promql: add group() aggregate function to MetricsQL ... This function has been added in Prometheus 2.20. See https://github.com/prometheus/prometheus/pull/7480	2020-07-17 15:17:55 +03:00
Aliaksandr Valialkin	df01836818	app/vmselect/promql: keep all labels for time series from any() call	2020-07-17 15:17:54 +03:00
Aliaksandr Valialkin	e4e1cd1de2	app/vmselect: fix nil pointer dereference panic when unsuccessfully querying vmstorage	2020-07-16 19:15:43 +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	55d83e777d	app/vmselect/prometheus: minimize the diff for the change 1033dc7e2a over 619b0a25c9	2020-07-13 21:40:38 +03:00
faceair	1033dc7e2a	fix empty response template (#617)	2020-07-13 21:31:19 +03:00
Aliaksandr Valialkin	9c350bc20d	app/vmselect/promql: add missing tests for ifnot binary operation	2020-07-09 13:24:06 +03:00
Aliaksandr Valialkin	256fd9a87e	app/vmselect/promql: refactor implementations for and and unless binary operations, so they are closer to or implementation	2020-07-09 13:05:55 +03:00
Aliaksandr Valialkin	2d9b3ad5b3	app/vmselect/promql/active_queries.go: simplify code a bit by inlining getNextActiveQueryID function	2020-07-09 11:18:30 +03:00
Aliaksandr Valialkin	742da690f4	app/vmselect: add /api/v1/status/active_queries page with the list of currently running queries ... This is a follow-up for https://github.com/VictoriaMetrics/VictoriaMetrics/pull/598 Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/575	2020-07-08 18:55:38 +03:00
DexterZhang	99f54e44ff	feat(vmselect): add current running query list, add ability for getting the running query info and killing running query for master branch (#598)	2020-07-08 18:52:55 +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	5d3db3ff7c	app/vmselect: add interpolate function for filling gaps with linearly interpolated values ... See https://stackoverflow.com/q/62565021/274937 for details	2020-07-02 14:54:21 +03:00
Aliaksandr Valialkin	84a37098ed	app/vmstorage: add -denyQueriesOutsideRetention command-line flag for denying queries outside the configured retention ... VictoriaMetrics returns `503 Service Unavailable` http error for requests with time ranges outside the configured retention if `-denyQueriesOutsideRetention` command-line flag is set.	2020-07-01 00:21:44 +03:00
Aliaksandr Valialkin	7c2c8b2981	all: use errors.As for inspecting errors that implement httpserver.ErrorWithStatusCode	2020-07-01 00:04:34 +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	05d754d7bb	app/vmselect/netstorage: reset big result values every 10 seconds instead of after processing every time series ... This should reduce GC pressure when processing time series with big number of rows	2020-06-24 19:38:39 +03:00
nicbaz	774f7ca1c1	vmselect: fix label_replace when mismatch (#579) ... As per documentation on `label_replace` function: "If the regular expression doesn't match then the timeseries is returned unchanged". Currently this behavior is not enforced, if a regexp on an existing tag doesn't match then the tag value is copied as-is in the destination tag. This fix first checks that the regular expression matches the source tag before applying anything. Given the current implementation, this fix also changes the behavior of the **MetricsQL** `label_transform` function which does not document this behavior at the moment.	2020-06-23 23:50:33 +03:00
Aliaksandr Valialkin	7209d58fbd	app/vmselect/netstorage: increase concurrency when processing small number of time series with big number of data points per each time series ... Previously VictoriaMetrics was processing up to 32 time series in a single goroutine. This could be slow if each time series contains big number of data points (10M+ or more), since only a single CPU core could be loaded with work, while other CPU cores were idle. Fix this by launching GOMAXPROCS workers for time series processing. This should help with https://github.com/VictoriaMetrics/VictoriaMetrics/issues/572	2020-06-23 22:46:15 +03:00
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	b4afe562c1	lib/storage: postpone reading data from blocks during search ... This eliminates the need for storing block data into temporary files on a single-node VictoriaMetrics during heavy queries, which touch big number of time series over long time ranges. This improves single-node VM performance on heavy queries by up to 2x.	2020-04-27 11:45:24 +03:00
Aliaksandr Valialkin	fcf57f9883	app/vmselect/netstorage: substitute sorting packedTimeseries with the natural order of the fetched blocks ... This should minimize the number of disk seeks when reading data from temporary file.	2020-04-26 16:26:23 +03:00
Aliaksandr Valialkin	a596aec82c	app/vmselect: fix description for -search.resetCacheAuthKey	2020-04-24 19:45:50 +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	071fdf5518	lib/logger: add WARN level for logging expected errors such as invalid user queries	2020-04-15 20:50:26 +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	318326c309	lib/storage: properly handle {label=~"foo|"} filters as Prometheus does ... Such filters must match all the time series with `label="foo"` plus all the time series without `label` Previously only time series with `label="foo"` were matched. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/395	2020-03-31 00:48:18 +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	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	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	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	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	18af31a4c2	all: properly split vm_deduplicated_samples_total among cluster components ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/345	2020-02-27 23:48:07 +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	539139391c	app/vmselect: add /internl/resetRollupResultCache handler for resetting response cache ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/312	2020-02-21 13:58:05 +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	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	834051e5b2	app/vmselect: add a placeholder for /api/v1/metadata, which could be requested by Grafana ... See https://prometheus.io/docs/prometheus/latest/querying/api/#querying-metric-metadata VictoriaMetrics doesn't collect any metadata for metrics, so just return empty response.	2020-02-04 15:53:47 +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	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	c3d86eef96	all: add -dedup.minScrapeInterval command-line flag for data de-duplication ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/86 Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/278	2020-01-31 01:16:57 +02:00
Aliaksandr Valialkin	d70ba7eb37	lib/fs: optimize small reads for ReaderAt.MustReadAt by reading from memory-mapped space instead of reading from file descriptor ... This should improve performance when reading many small blocks.	2020-01-30 15:09:05 +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	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	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	cdcacaea6d	app/vmselect/netstorage: make fmt	2020-01-17 17:47:21 +02:00
Aliaksandr Valialkin	7327adbc86	app/vmselect/netstorage: limit the maximum size for in-memory buffer for temporary blocks file ... This should reduce memory usage on systems with more than 8GB RAM.	2020-01-17 16:28:21 +02:00
Aliaksandr Valialkin	d0d258b314	app/vmselect: limit the default value for -search.maxConcurrentRequests, so it plays well on systems with more than 16 vCPUs ... A single heavy request can saturate all the available CPUs, so let's limit the number of concurrent requests to lower value. This will give more chances for executing insert path.	2020-01-17 15:43:54 +02:00
Aliaksandr Valialkin	d88725f133	app/{vminsert,vmselect}: improve error messages when VictoriaMetrics cannot handle too high number of concurrent inserts / selects	2020-01-17 13:24:37 +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	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
Aliaksandr Valialkin	d410c78c7e	app/vmselect/promql: fix calculations for histogram_share	2020-01-04 14:44:48 +02:00
Aliaksandr Valialkin	d64699bb9f	app/vmselect/promql: add missing MetricName into netstorage.Result in tests	2020-01-04 12:52:39 +02:00
Aliaksandr Valialkin	f409f2d050	app/vmselect/promql: add histogram_share(le, buckets) function	2020-01-04 12:45:55 +02:00
Aliaksandr Valialkin	b1ded7cf9a	app/vmselect/promql: add absent_over_time(m[d]) func similar to the function in Prometheus 2.16 ... See https://github.com/prometheus/prometheus/issues/2882	2020-01-04 12:45:07 +02:00
Aliaksandr Valialkin	a8360d04c0	app/vmselect/promql: add histogram_over_time(m[d]) rollup function	2020-01-04 12:44:56 +02:00
Aliaksandr Valialkin	3e09d38f29	app/vmselect/promql: fix results caching for multi-arg rollup functions such as quantile_over_time ... Previosly only a single arg was taken into account, so caching didn't work properly for multi-arg rollup funcs.	2020-01-03 20:49:08 +02:00
Aliaksandr Valialkin	a774120460	app/vmselect/promql: use scrapeInterval instead of window in denominator when calculating rate for the first point on the time series ... This should provide better estimation for `rate` in the beginning of time series.	2020-01-03 19:01:50 +02:00
Aliaksandr Valialkin	b5645ccbdf	app/vmselect/promql: increase the estimated number of time series returned by aggr() by (something) from 100 to 1K, since 100 may result in OOM for high number of time series	2020-01-03 01:02:21 +02:00
Aliaksandr Valialkin	cb3a342882	app/vmselect/promql: add share_le_over_time and share_gt_over_time functions for SLI and SLO calculations	2020-01-03 00:41:16 +02:00
Aliaksandr Valialkin	6f67e0b56b	lib/metricsq: add ExpandWithExprs	2019-12-25 22:20:30 +02:00
Aliaksandr Valialkin	1925ee038d	Rename lib/promql to lib/metricsql and apply small fixes	2019-12-25 22:03:59 +02:00
Mike Poindexter	bec62e4e43	Split Extended PromQL parsing to a separate library	2019-12-25 22:03:51 +02:00
Aliaksandr Valialkin	d880325cf6	app/vmselect/promql: make sure AdjustStartEnd returns time range covering the same number of points as the initial time range ... This should prevent from the following panic at app/vmselect/promql/binary_op.go:255: BUG: len(leftVaues) must match len(rightValues) and len(dstValues)	2019-12-24 22:45:56 +02:00
Aliaksandr Valialkin	9e19949c6b	app/vmselect/promql: adjust calculations for rate and increase for the first value ... These calculations should trigger alerts on `/api/v1/query` for counters starting from values greater than 0.	2019-12-24 19:39:25 +02:00
Aliaksandr Valialkin	0455c03cb9	app/vmselect/promql: properly calculate rate on the first data point ... It is calculated as `value / scrape_interval`, since the value was missing on the previous scrape, i.e. we can assume its value was 0 at this time.	2019-12-24 15:55:52 +02:00
Aliaksandr Valialkin	5b75984aa9	app/vmselect/netstorage: move MustAdviseSequentialRead to lib/fs	2019-12-23 23:16:11 +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	cea5a14853	all: rename Extended PromQL to PromQL extensions	2019-12-12 19:25:58 +02:00
Aliaksandr Valialkin	73b2a3d4b7	app/vmselect/promql: return lower and upper bounds for the estimated percentile from histogram_quantile if third arg is passed ... Updates https://github.com/prometheus/prometheus/issues/5706	2019-12-11 13:57:26 +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	c09472dfd9	app/vmselect/promql: add {topk|bottomk}_{min|max|avg|median} aggregate functions for returning the exact k time series on the given time range ... The full list of functions added: - `topk_min(k, q)` - returns top K time series with the max minimums on the given time range - `topk_max(k, q)` - returns top K time series with the max maximums on the given time range - `topk_avg(k, q)` - returns top K time series with the max averages on the given time range - `topk_median(k, q)` - returns top K time series with the max medians on the given time range - `bottomk_min(k, q)` - returns bottom K time series with the min minimums on the given time range - `bottomk_max(k, q)` - returns bottom K time series with the min maximums on the given time range - `bottomk_avg(k, q)` - returns bottom K time series with the min averages on the given time range - `bottomk_median(k, q)` - returns bottom K time series with the min medians on the given time range	2019-12-05 19:26:47 +02:00
Aliaksandr Valialkin	face3d57bf	app/vmselect: add placeholders for /api/v1/rules and /api/v1/alerts	2019-12-03 19:36:33 +02:00
Aliaksandr Valialkin	20812008a7	lib/storage: remove metricID with missing metricID->metricName entry ... The metricID->metricName entry can be missing in the indexdb after unclean shutdown when only a part of entries for new time series is written into indexdb. Recover from such a situation by removing the broken metricID. New metricID will be automatically created for time series with the given metricName when new data point will arive to it.	2019-12-02 20:46:44 +02:00
Aliaksandr Valialkin	9476b73527	app/vmselect/promql: estimate per-series scrape interval as 0.6 quantile for the first 100 intervals ... This should improve scrape interval estimation for tiem series with gaps.	2019-12-02 13:42:33 +02:00
Aliaksandr Valialkin	75ff524a4e	app/vmselect/promql: fix corner case for increase over time series with gaps ... In this case `increase` could return invalid high value for the first point after the gap.	2019-11-30 01:34:56 +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	205233d9a7	app/vmselect/promql: remove zero timeseries from prometheus_buckets output	2019-11-25 19:10:23 +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	e91cb34c0e	app/vmselect/promql: allow nested parens	2019-11-25 16:13:41 +02:00
Aliaksandr Valialkin	826dfd63a5	vendor: update github.com/VictoriaMetrics/metrics from v1.9.0 to v1.9.1	2019-11-25 15:23:01 +02:00
Aliaksandr Valialkin	0401969d78	app/vmselect/promql: re-use metrics.Histogram when calculating histogram function for each point on the graph ... This should reduce the amounts memory allocations	2019-11-25 14:24:21 +02:00
Aliaksandr Valialkin	da98703748	app/vmselect/promql: optimize binary search over big number of samples during rollup calculations	2019-11-25 14:01:46 +02:00
Aliaksandr Valialkin	c28876172f	app/vmselect/promql: adjust tests after the upgrade of github.com/VictoriaMetrics/metrics from v1.8.3 to v1.9.0	2019-11-25 13:43:57 +02:00
Aliaksandr Valialkin	50ae1879c6	app/vmselect/promql: add histogram aggregate function, which is useful for building heatmaps from multiple time series	2019-11-24 00:04:25 +02:00
Aliaksandr Valialkin	8582b50360	app/vmselect/promql: do not take into account buckets with negative counters in prometheus_buckets	2019-11-23 14:19:25 +02:00
Aliaksandr Valialkin	19dfe52254	app/vmselect/promql: properly handle histogram_quantile(0, ...) with zero buckets	2019-11-23 14:02:35 +02:00
Aliaksandr Valialkin	4bb88843cf	app/vmselect: add vm_per_query_{rows,series}_processed_count histograms	2019-11-23 13:23:26 +02:00
Aliaksandr Valialkin	7753c8c0a1	app/vmselect/promql: transparently apply prometheus_buckets in histogram_quantile	2019-11-23 11:48:51 +02:00
Aliaksandr Valialkin	c4287b3c86	app/vmselect/promql: add prometheus_buckets function for converting the upcoming histogram buckets from github.com/VictoriaMetrics/metrics to Prometheus-compatible buckets	2019-11-23 00:20:20 +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	7a4635f853	all: remove the remaining mentions of cluster version	2019-11-21 23:18:22 +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
Aliaksandr Valialkin	3f1637fae8	app/vmselect/promql: properly calculate integrate(q[d])	2019-11-13 21:10:41 +02:00
Aliaksandr Valialkin	3fd32e331a	app/vmselect/promql: use universal approach for determining maxByteSliceLen on 32-bit and 64-bit archs ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/235	2019-11-13 20:24:26 +02:00
Oleg Kovalov	b4f44befa3	fix misspelled words (#229)	2019-11-12 00:16:42 +02:00
Aliaksandr Valialkin	63b05c0b9f	app/vmselect/promql: adjust memory limits calculations for incremental aggregate functions ... Incremental aggregate functions don't keep all the selected time series in memory - they keep only up to GOMAXPROCS time series for incremental aggregations. Take into account that the number of time series in RAM can be higher if they are split into many groups with `by (...)` or `without (...)` modifiers. This should reduce the number of `not enough memory for processing ... data points` false positive errors.	2019-11-08 21:21:07 +02:00
Aliaksandr Valialkin	2f58f37f07	app/vmselect/promql: add lag(q[d]) function, which returns the lag between the current timestamp and the timstamp for the last data point in q	2019-11-01 12:21:33 +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	97ce4e03a5	all: add support for GOARCH=386 and fix all the issues related to 32-bit architectures such as GOARCH=arm ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/212	2019-10-17 18:23:23 +03:00
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	956fdd89d3	app/vmselect/promql: take into account the previous point when calculating max_over_time and min_over_time ... This lines up with `first_over_time` function used in `rollup_candlestick`, so `rollup=low` always returns the minimum value. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/204	2019-10-08 12:30:05 +03:00
Aliaksandr Valialkin	4e9e1ca0f7	app/vmselect/netstorage: hint the OS that tmpBlocksFile is read almost sequentially ... This became the case after b7ee2e7af2 .	2019-09-30 00:11:14 +03:00
Aliaksandr Valialkin	c1d3705be0	app/vmselect/netstorage: marshal block outside tmpBlocksFile.WriteBlock ... This allows re-using the destination buffer for marshaling in the outer loop.	2019-09-28 21:07:13 +03:00
Aliaksandr Valialkin	b7ee2e7af2	app/vmselect/netstorage: reduce the number of disk seeks when the query processes big number of time series	2019-09-28 21:07:09 +03:00
Aliaksandr Valialkin	67d44b0845	app/vmselect/promql: do not generate timestamps for NaN values in timestamp function according to Prometheus logic	2019-09-27 18:54:43 +03:00
Aliaksandr Valialkin	26dc21cf64	app/vmselect/promql: add increases_over_time and decreases_over_time functions ... `increases_over_time(q[d])` returns the number of `q` increases during the given duration `d`. `decreases_over_time(q[d])` returns the number of `q` decreases during the given duration `d`.	2019-09-25 20:38:44 +03:00
Aliaksandr Valialkin	d4218d27e6	app/vmselect/promql: properly handle subqueries like aggr_func(rollup_func(metric[window:step])) ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/184	2019-09-13 21:41:04 +03:00
Aliaksandr Valialkin	4d636c244d	app/vmselect/promql: binary operation fixes according to Prometheus behaviour ... The follosing issues were fixed: - VictoriaMetrics could leave superflouos labels when using `on` or `ignoring` modifiers - VictoriaMetrics could return `duplicate timeseries` error when using `group_left` or `group_right` with non-empty label list	2019-09-13 17:42:52 +03:00
Aliaksandr Valialkin	6954e126fc	app/vmselect/promql: ignore grouping by destination label in count_values, since such a grouping is performed automatically	2019-09-04 19:58:01 +03:00
Aliaksandr Valialkin	305e7bc981	app/vmselect/promql: do not return artificial points beyond the last point in time series	2019-09-04 16:35:34 +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	db4560ca31	app/vmselect/promql: reset timeseries name on group_left and group_right as Prometheus does	2019-09-03 20:42:54 +03:00
Aliaksandr Valialkin	1575a560f0	app/vmselect/netstorage: adaptively adjust the maximum inmemory file size for storing temporary blocks ... The maximum inmemory file size now depends on `-memory.allowedPercent`. This should improve performance and reduce the number of filesystem calls on machines with big amounts of RAM when performing heavy queries over big number of samples and time series.	2019-09-03 13:32:09 +03:00
Aliaksandr Valialkin	9196c085a7	all: port to FreeBSD on GOARCH=amd64	2019-08-28 01:19:23 +03:00
Aliaksandr Valialkin	603a79b357	app/vmstorage: increase default values for search.maxTagKeys, search.maxTagValues and search.maxUniqueTimeseries	2019-08-27 14:29:53 +03:00
Aliaksandr Valialkin	ac004665b5	all: return 503 http error if service is temporarily unavailable ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/156	2019-08-23 09:55:07 +03:00
Aliaksandr Valialkin	1272e407b2	app/vmselect/promql: attempt to repair invalid bucket counts passed to histogram_quantile ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/136 Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/154	2019-08-22 14:39:46 +03:00
Aliaksandr Valialkin	f4a38f7fb1	app/vmselect/promql: fix panic on -search.disableCache ... Reset the cache if it is disabled instead of stopping, since it is stopped on graceful shutdown.	2019-08-21 17:11:52 +03:00
Aliaksandr Valialkin	ab740afd0d	app/vmselect/promql: explain why empty timeseries arent removed in transformLabelValue	2019-08-21 11:29:24 +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	a0d480fbf3	app/vmselect/promql: pre-allocate memory for map for checking for duplicate timeseries ... This should reduce memory allocations for big number of timeseries	2019-08-20 23:01:39 +03:00
Aliaksandr Valialkin	d3fd113a80	app/vmselect/promql: add label_value(q, label_name) func, which returns numeric value labels with name label_name in q	2019-08-20 00:28:34 +03:00
Aliaksandr Valialkin	dd86e6130c	app/vmselect/promql: independently track offset hints for tStart and tEnd ... This should improve performance if timeseries starts or ends on the selected time range	2019-08-19 13:40:14 +03:00
Aliaksandr Valialkin	6a27657d73	app/vmselect/promql: optimize search for timestamp boundaries in rollupConfig.Do ... This should improve the performance of queries over big number of time series with big number of output points.	2019-08-19 13:03:29 +03:00
Aliaksandr Valialkin	e74fb23189	app/vmselect/promql: add scrape_interval(q[d]) function, which would return scrape interval for q over d	2019-08-18 21:08:26 +03:00
Aliaksandr Valialkin	582fdc059a	app/vmselect/promql: hande comparisons with NaN similar to Prometheus ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/150	2019-08-18 00:25:50 +03:00
Aliaksandr Valialkin	1c108fc494	app/vmselect/promql: add lifetime(q[d]) function, which returns the lifetime of q over d in seconds. ... This function is useful for determining time series lifetime. `d` must exceed the expected lifetime of the time series, otherwise the function would return values close to `d`.	2019-08-16 11:59:32 +03:00
Aliaksandr Valialkin	d6b5ed6d39	app/vmselect/promql: fix corner-case calculation for ideriv	2019-08-16 11:59:28 +03:00
Aliaksandr Valialkin	639b14e8ab	app/vmselect/promql: properly handle corner cases for rollup functions	2019-08-15 23:29:59 +03:00
Aliaksandr Valialkin	9ecb994671	app/vmselect/promql: store compressed results in the cache ... This should increase rollup results cache capacity.	2019-08-14 02:29:45 +03:00
Aliaksandr Valialkin	09fc6e22e5	all: use workingsetcache instead of fastcache ... This should reduce the amount of RAM required for processing time series with non-zero churn rate. The previous cache behavior can be restored with `-cache.oldBehavior` command-line flag.	2019-08-13 21:39:34 +03:00
Aliaksandr Valialkin	5c83f8e203	app: add vm_concurrent_ metrics for visibility in concurrency limiters for vminsert and vmselect	2019-08-05 18:30:57 +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	1c69f4eadc	app/vmselect/promql: tune automatic window adjustement ... Increase the windows adjustement for small scrape intervals, since they usually have higher jitter. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/139 Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/134	2019-08-04 19:34:05 +03:00
Aliaksandr Valialkin	8d93b15b86	app/vmselect/promql: further increase the allowed jitter for scrape interval ... Real-world production data shows higher jitter than 1/8 of scrape interval. This may results in gaps on the graph. So increase the allowed jitter to 1/4 of scrape interval in order to reduce the probability of gaps on the graphs over time series with high jitter for scrape_interval.	2019-08-02 20:10:23 +03:00
Aliaksandr Valialkin	f090b2e917	app/vmselect/promql: tolerate higher jitter in scrape interval ... Allow jitter for up to 1/8 instead of 1/16 for the scrape interval. This should imrpove graphs when `step` is smaller than the `scrape_interval`.	2019-08-01 23:26:00 +03:00
Aliaksandr Valialkin	3a38b23fa3	app/vmselect/promql: add vm_slow_queries_total metric for counting slow queries ... The query is slow if its execution time exceeds `-search.logSlowQueryDuration`	2019-07-31 03:36:37 +03:00
Aliaksandr Valialkin	8bd6f1f6df	app/vmselect/promql: return NaN from histogram_quantile if at least a single bucket is broken	2019-07-31 01:18:07 +03:00
Aliaksandr Valialkin	4aaa5c2efc	app/vmselect/promql: allow adjusting window for default rollup function ... Default rollup function is `last_over_time`. It must support adjusting the provided window in order to prevent from gaps on the graph for window values smaller than scrape interval. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/134	2019-07-31 00:45:54 +03:00
Aliaksandr Valialkin	10f5a26bec	app/vmselect/promql: return NaN values if invalid bucket counts are passed to histogram_quantile ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/136	2019-07-30 22:05:10 +03:00
Aliaksandr Valialkin	afcc7fb167	app/vmselect/netstorage: improve error message when reading data blocks from storage ... Mention the block number in the error. This should simplify troubleshooting in this code.	2019-07-28 12:12:35 +03:00
Aliaksandr Valialkin	17096b5750	app/vmselect/promql: return NaN from count() over zero time series ... This aligns `count` behavior with Prometheus.	2019-07-25 22:02:30 +03:00
Aliaksandr Valialkin	66efa5745f	app/vmselect/promql: properly calculate incremental aggregations grouped by __name__ ... Previously the following query may fail on multiple distinct metric names match: sum(count_over_time{__name__!=''}) by (__name__)	2019-07-25 21:53:20 +03:00
Aliaksandr Valialkin	6a943a6a58	app/vmselect/promql: remove empty time series after applying filters like q > 0 ... This should reduce CPU and RAM usage for queries over high number of time series.	2019-07-12 19:59:27 +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	a336bb4e22	app/vmselect/promql: reduce RAM usage for aggregates over big number of time series ... Calculate incremental aggregates for `aggr(metric_selector)` function instead of keeping all the time series matching the given `metric_selector` in memory.	2019-07-10 13:04:39 +03:00
Aliaksandr Valialkin	1fe6d784d8	all: consistency renaming: bytesSize -> sizeBytes	2019-07-10 00:47:36 +03:00
Aliaksandr Valialkin	55fe36149c	app/vmselect/promql: mention -search.logSlowQueryDuration flag value in the slow query log message	2019-07-10 00:41:24 +03:00
Aliaksandr Valialkin	9203170eb2	app/vmselect/promql: extract rmoeveGroupTags function for removing unneeded tags from MetricName according to the given modifierExpr	2019-07-09 23:20:48 +03:00
Aliaksandr Valialkin	2db685c19c	app/vmselect/promql: properly preserve metric name after applying functions in any case from transformFuncsKeepMetricGroup	2019-07-09 23:10:35 +03:00
Aliaksandr Valialkin	40a6c0d672	app/vmselect/prometheus: typo fix	2019-07-07 23:34:23 +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	4dbd642c86	app/vmselect/promql: remove empty timeseries left after topk call	2019-07-04 19:42:39 +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	e06866005d	app/vmselect/promql: gracefully handle duplicate timestamps in irate and rollup_rate funcs ... Previously such timestamps result in `+Inf` results. Now the previous timestamp is used for the calculations.	2019-07-03 12:39:55 +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
Aliaksandr Valialkin	74c0fb04f3	app/vmselect/promql: consistency renaming: candlestick -> rollup_candlestick	2019-06-29 03:13:02 +03:00
Aliaksandr Valialkin	55bcf60ea6	app/vmselect: fix 32bit arm build ... Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/83	2019-06-27 19:36:17 +03:00
Aliaksandr Valialkin	796b010139	app/vmselect: add candlestick(m[d]) func for returning open, close, low and high rollups on the given time range d ... This function is frequently used in financial apps. See https://en.wikipedia.org/wiki/Candlestick_chart	2019-06-27 18:46:13 +03:00
Aliaksandr Valialkin	844ce4731e	app/vmselect/promql: suppress error when template func is used inside modifier list. Just leave it as is ... Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/78	2019-06-25 20:43:22 +03:00
Aliaksandr Valialkin	feacfffe89	app/vmselect/promql: increase default value for -search.maxPointsPerTimeSeries from 10k to 30k ... This may be required for subqueries with small steps. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/77	2019-06-24 22:53:18 +03:00
Aliaksandr Valialkin	4bb738ddd9	app/vmselect/promql: adjust value returned by linearRegression to the end of time range like Prometheus does ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/71	2019-06-24 22:45:58 +03:00
Aliaksandr Valialkin	90e72c2a42	app/vmselect/promql: add sum2 and sum2_over_time, geomean and geomean_over_time funcs. ... These functions may be useful for statistic calculations.	2019-06-24 16:44:44 +03:00
Aliaksandr Valialkin	61926bae01	app/vmselect/promql: adjust the provided window only for range functions with dt in denominator ... This should fix range function calculations such as `changes(m[d])` where `d` is smaller than the scrape interval. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/72	2019-06-23 19:27:31 +03:00
Aliaksandr Valialkin	ee13256f74	app/vmselect/promql: use deriv_fast instead of deriv in ttf, since deriv calculations have been changed recently	2019-06-23 15:54:18 +03:00
Aliaksandr Valialkin	3b3b2f1e6e	app/vmselect/promql: adjust ttf calculation, so deriv(freev) for freev=m[d] could be properly calculated	2019-06-23 14:31:19 +03:00
Aliaksandr Valialkin	146c6e1f72	app/vmselect/promql: typo fixes in comments	2019-06-21 23:22:59 +03:00
Aliaksandr Valialkin	d261fa2885	app/vmselect/promql: add deriv_fast function for calculating fast derivative ... `deriv_fast` calculates derivative based on the first and the last point on the interval instead of calculating linear regression based on all the data points on the interval. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/73	2019-06-21 23:05:39 +03:00
Aliaksandr Valialkin	5b47c00910	app/vmselect/promql: use linear regression in deriv func like Prometheus does ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/73	2019-06-21 22:59:46 +03:00
Aliaksandr Valialkin	9e1119dab8	app/vmselect/promql: ajdust data model to the model used in Prometheus ... Do not take into account data points on the range `[timestamp .. timestamp+step)` when calculating value on the given `timestamp`. Use only data points from the past when performing these calculations like Prometheus does. This should reduce discrepancies between results returned by VictoriaMetrics and results returned by Prometheus. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/72 Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/71	2019-06-21 21:54:48 +03:00
Aliaksandr Valialkin	47a3228108	app/vmselect/promql: do not strip __name__ form time series after binary comparison operation ... Example: foo > 10 Would leave `foo` name for all the matching time series on the left.	2019-06-21 13:09:38 +03:00
Aliaksandr Valialkin	973e4b5b76	app/vmselect/promql: remove unused func keepLastValue; updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/69	2019-06-20 14:35:11 +03:00
Aliaksandr Valialkin	7aadec8e3c	app/vmselect/promql: typo fix; updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/69	2019-06-20 14:33:47 +03:00
Aliaksandr Valialkin	70ba36fa37	app/vmselect/prometheus: return better error messages on missing args to /api/v1/*	2019-06-20 14:07:55 +03:00
Aliaksandr Valialkin	beb479b8f1	app/vmselect/promql: use dynamic limit on memory for concurrent queries	2019-06-12 23:18:44 +03:00
Aliaksandr Valialkin	a8db528930	app/vmselect/promql: merge non-overlapping duplicate time series in group_left and group_right joins	2019-06-12 20:32:32 +03:00
Aliaksandr Valialkin	15613e5338	app/vmselect/promql: swap binary operation with modifier in the error message for improved readability	2019-06-12 17:14:39 +03:00
Aliaksandr Valialkin	3237d0309c	app/vmselect/promql: list a sample of duplicate time series in the error message for group_left or group_right ... This should improve troubleshooting for complex queries involving `group_left` and `group_right` modifiers.	2019-06-12 16:57:37 +03:00
Aliaksandr Valialkin	419197ba08	lib/fs: consolidate *RemoveAll* funcs into a single MustRemoveAll func ... The func syncs parent dir in order to persist directory removal in the event of power loss	2019-06-12 01:53:46 +03:00
Aliaksandr Valialkin	ac7b186f13	all: try hard removing directory with contents ... Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/61	2019-06-11 01:57:59 +03:00
Aliaksandr Valialkin	1c33b5937e	app/vmselect/promql: prevent from count_values explosion of timeseries, which could result in OOM	2019-06-11 01:03:13 +03:00
Aliaksandr Valialkin	8bb6bc986d	app/vmselect/promql: skip superflouos timestamps copying in count_values	2019-06-11 00:44:01 +03:00
Aliaksandr Valialkin	d2be567482	app/vmselect/promql: remove superflouos timeseries copy in histogram_quantile func	2019-06-11 00:39:41 +03:00
Aliaksandr Valialkin	7e7d4d5275	app/vmselect/promql: remove superflouos timeseries copy in union func	2019-06-11 00:35:20 +03:00
Aliaksandr Valialkin	bf9782eaf6	app/vmselect/promql: skip NaN values in count_values func	2019-06-10 22:42:32 +03:00
Aliaksandr Valialkin	cbe692f0e2	app/vmselect: add /api/v1/labels/count handler for quick detection of labels with the maximum number of distinct values	2019-06-10 19:55:38 +03:00
Aliaksandr Valialkin	c1f18ee48d	app/vmselect/promql: properly handle {__name__ op "string"} queries ... This has been broken in 7294ef333ad26f4f6578b783e97649e58b1f8945 .	2019-06-07 02:02:04 +03:00
Aliaksandr Valialkin	667115a5c7	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 22:18:18 +03:00
Aliaksandr Valialkin	1458450dba	app/vmselect/promql: return the correct time series from quantile ... Previously arbitrary time series could be returned from `quantile` depending on sort order for the last data point in the selected range. Fix this by returning the calculated time series. Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/55	2019-06-06 17:07:31 +03:00
Aliaksandr Valialkin	53ea90865d	app/vmselect/promql: add -search.disableCache flag for disabling response caching ... This may be useful for data back-filling, when the response caching could interfere badly with newly added data points with timestamps in the past.	2019-06-04 17:30:45 +03:00
Aliaksandr Valialkin	f2cf5d8e36	app/vmselect/promql: allow escaping identifiers with \ and \xXX ... Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/42	2019-05-31 17:35:17 +03:00
Aliaksandr Valialkin	27f0d098bd	app/victoria-metrics: add make victoria-metrics-arm64 rule for building GOARCH=arm64 binary	2019-05-29 23:07:14 +03:00
Aliaksandr Valialkin	e307a4d92c	lib/timerpool: use timer pool in concurrency limiters ... This should reduce the number of memory allocations in highly loaded system	2019-05-28 17:20:10 +03:00
Aliaksandr Valialkin	4859ca0cda	app/vmselect: update comment according to the updated code	2019-05-26 22:38:58 +03:00
Aliaksandr Valialkin	5262aae5da	app/vmselect/promql: misspeling fix	2019-05-25 21:53:11 +03:00
Aliaksandr Valialkin	54fb8b21f9	all: fix misspellings	2019-05-25 21:51:11 +03:00
Aliaksandr Valialkin	d6523ffe90	Makefile: add -s flag to go fmt in make fmt command	2019-05-25 21:43:35 +03:00
Aliaksandr Valialkin	5cbd4cfca9	app/vmselect: log slow queries if their execution time exceeds -search.logSlowQueryDuration	2019-05-24 16:12:31 +03:00
Aliaksandr Valialkin	718ce33714	app/vmselect: consume resultsCh data in exportHandler if writeResponseFunc failed to consume it	2019-05-24 14:54:31 +03:00
Aliaksandr Valialkin	d15d0127fe	app/vmselect/promql: add alias(q, name) function that sets the given name to all the time series in q	2019-05-24 02:41:45 +03:00
Aliaksandr Valialkin	fb140eda33	app/vmselect/promql: add label_transform(q, label, regexp, replacement) function for replacing all the occurences of regexp with replacement in the given label for q	2019-05-23 16:26:19 +03:00
Aliaksandr Valialkin	1836c415e6	all: open-sourcing single-node version	2019-05-23 00:18:06 +03:00