132 commits

Author	SHA1	Message	Date
Aliaksandr Valialkin	744f8c3fe7	app/vmselect/promql: add outliers_iqr(q) and outlier_iqr_over_time(m[d]) functions ... These functions allow detecting anomalies in series and samples using Interquartile range method. See Outliers section at https://en.wikipedia.org/wiki/Interquartile_range for more details.	2023-10-31 22:14:14 +01:00
hagen1778	eb00a575c2	docs: mention key concepts as querying example ... See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5169 Signed-off-by: hagen1778 <roman@victoriametrics.com>	2023-10-18 20:12:06 +02:00
Aliaksandr Valialkin	627a4e9330	app/vmselect/promql: add labels_equal(q, "label1", "label2", ...) function ... This function returns q series, which have identical values for the listed labels "label1", "label2", ... See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5148	2023-10-16 21:51:13 +02:00
Aliaksandr Valialkin	cdf62fb06b	docs/MetricsQL.md: typo fix after bdb743c88d ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5071	2023-10-16 21:09:50 +02:00
Aliaksandr Valialkin	b2f9b9d634	app/vmselect/promql: add drop_empty_series() function for dropping empty series before performing additional calculations ... This can be useful in the following queries: drop_empty_series(temperature <= 30) default 40 This query drops temperature series with all the values bigger than 30 on the selected time range, while replacing gaps in the remaining series with 40. The query without drop_empty_series: (temperature <= 30) default 40 would leave all the temperature series with all the values bigger than 30 on the selected time range, and replace all their values with 40. This is not what could be epxected in some cases like here - https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5071	2023-10-16 20:59:21 +02:00
Haleygo	130e0ea5f0	vmalert-tool: implement unittest (#4789) ... 1. split package rule under /app/vmalert, expose needed objects 2. add vmalert-tool with unittest subcmd https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2945	2023-10-16 14:12:06 +02:00
Aliaksandr Valialkin	1ca3b660f0	app/vmselect/promql: add support for _ delimiters in numeric values ... For example, 1_234_567_890 is equivalent to 1234567890, while 1.234_567_890 is equivalent to 1.234567890	2023-08-30 14:35:58 +02:00
Damon07	4c509c0b89	{app/vmselect,docs}: support share_eq_over_time#4441 (#4725) ... https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4441 Co-authored-by: wangm <wangmm@tuya.com>	2023-07-31 07:51:09 -07:00
yrka	7750c5a553	Update MetricsQL.md (#4689) ... misspell	2023-07-22 14:19:30 -07:00
Aliaksandr Valialkin	5ace0701d3	app/vmselect/promql: add the ability to copy all the labels from one side of group_left()/group_right() operation ... This is performed by specifying `*` inside group_left()/group_right(). Also allow specifying prefix for the copied labels via `group_left(...) prefix "..."` and `group_right(...) prefix "..."` syntax. For example, the following query adds all the namespace-related labels to pod info, and prefixes all the copied label names with "ns_" prefix: kube_pod_info * on(namespace) group_left(*) prefix "ns_" kube_namespace_labels This resolves the following StackOverflow questions: - https://stackoverflow.com/questions/76661818/how-to-add-namespace-labels-to-pod-labels-in-prometheus - https://stackoverflow.com/questions/76653997/how-can-i-make-a-new-copy-of-kube-namespace-labels-metric-with-a-different-name	2023-07-17 16:58:30 -07:00
Aliaksandr Valialkin	cc54fa2a56	app/vmselect/promql: recommend to use (a op b) keep_metric_names instead of a op b keep_metric_names ... The `a op b keep_metric_names` is ambigouos to `a op (b keep_metric_names)` when `b` is a transform or rollup function. For example, `a + rate(b) keep_metric_names`. So it is better to use more clear syntax: `(a op b) keep_metric_names` Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3710	2023-07-16 23:47:15 -07:00
Zakhar Bessarab	781947a7e2	metricsql: add support of using keep_metric_names for binary operations (#4109) ... * metricsql: add support of using keep_metric_names for binary operations This should help to avoid confusion with queries like one in the issue #3710. Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com> * wip --------- Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com> Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>	2023-07-16 03:01:27 -07:00
Aliaksandr Valialkin	a7fdc3fcc7	all: add support for or filters in series selectors ... This commit adds ability to select series matching distinct filters via a single series selector. For example, the following selector selects series with either {env="prod",job="a"} or {env="dev",job="b"} labels: {env="prod",job="a" or env="dev",job="b"} The `or` filter is supported in all the VictoriaMetrics tools now. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3997 Uses https://github.com/VictoriaMetrics/metricsql/pull/14	2023-07-15 23:56:18 -07:00
hagen1778	b43d27275d	docs/metricsql: fix typo in expression ... Signed-off-by: hagen1778 <roman@victoriametrics.com>	2023-07-06 21:28:01 -07:00
Alexander Marshalov	d321ea91f2	fixed typos in documentation and commandline flags descriptions (#4275)	2023-05-10 02:22:06 -07:00
Artem Navoiev	283a75afba	prepare static docs to migration ... Signed-off-by: Artem Navoiev <tenmozes@gmail.com>	2023-05-08 21:54:20 -07:00
Aliaksandr Valialkin	229b39ac7d	docs/MetricsQL.md: quote min, max and avg args for rollup_*() functions in order to reduce the level of confusion when users try to pass the second argument to these functions	2023-03-26 00:02:01 -07:00
Roman Khavronenko	79eb33556e	metricsql: support optional 2nd argument for rollup functions (#3841) ... * metricsql: support optional 2nd argument for rollup functions Support optional 2nd argument `min`, `max` or `avg` for rollup functions: * rollup * rollup_delta * rollup_deriv * rollup_increase * rollup_rate * rollup_scrape_interval If second argument is passed, then rollup function will return only the selected aggregation type. This change can be useful for situations where only one type of rollup calculation is needed. For example, `rollup_rate(requests_total[5m], "max")`. Signed-off-by: hagen1778 <roman@victoriametrics.com> * wip --------- Signed-off-by: hagen1778 <roman@victoriametrics.com> Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>	2023-02-24 13:48:30 -08:00
Aliaksandr Valialkin	a15da5ff73	app/vmselect/promql: add share(q) aggregate function for normalizing results across multiple time series in [0..1] value range per each timestamp and aggregation group	2023-02-18 22:43:54 -08:00
Aliaksandr Valialkin	84b5532bc1	app/vmselect/promql: add range_zscore(q) and range_trim_zscore(z, q) functions ... These functions may be useful for dropping outliers at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3759	2023-02-18 22:43:53 -08:00
Aliaksandr Valialkin	450b6f6d39	app/vmselect/promql: add range_mad(q) and range_trim_outliers(k, q) functions ... These functions may help trimming outliers during query time for the use case described at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3759	2023-02-18 15:18:47 -08:00
Aliaksandr Valialkin	db7f237da9	app/vmselect/promql: add mad_over_time(m[d]) function ... See https://github.com/prometheus/prometheus/issues/5514	2023-02-11 01:06:39 -08:00
Aliaksandr Valialkin	6910dd2a98	docs/MetricsQL.md: add links to "rollup results" explanation	2023-02-03 11:10:49 -08:00
Aliaksandr Valialkin	78114e85d6	vendor: update github.com/VictoriaMetrics/metricsql from v0.50.0 to v0.51.0 ... Updates https://github.com/VictoriaMetrics/metricsql/pull/7 Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3589	2023-01-05 01:50:26 -08:00
Aliaksandr Valialkin	6d13ca2b88	app/vmselect: add /select/0/prometheus/expand-with-exprs page	2022-12-14 16:23:17 -08:00
Aliaksandr Valialkin	c902500efc	app/vmselect/promql: add range_trim_spikes(phi, q) function for trimming phi percent of largest spikes per each time series returned by q	2022-12-05 21:55:24 -08:00
Aliaksandr Valialkin	6b2c85d6bf	docs/MetricsQL.md: document that histogram_share() accepts optional boundsLabel arg	2022-11-24 17:27:43 -08:00
Aliaksandr Valialkin	ad548abd6a	app/vmselect/promql: add range_normalize(q1, ..., qN) function for normalizing query results into [0..1] value range ... This may be useful for analyzing correlation between time series with different value ranges	2022-11-21 23:25:35 +02:00
Aliaksandr Valialkin	9cb76c9cd3	app/vmselect/promql: allow using SI and IEC suffixes in numeric values inside queries ... For example, 10Ki is equivalent to 10*1024, while 5.3M is equivalent to 5.3*1000*1000	2022-11-21 21:28:34 +02:00
Aliaksandr Valialkin	0cc59b9f95	app/vmselect/promql: add range_stdvar() and range_stddev() functions for calculating variance and deviation over time series on the selected time range	2022-11-17 01:03:02 +02:00
Aliaksandr Valialkin	facf7efa3a	app/vmselect/promql: add range_linear_regression(q) function for calculating simple linear regression for the selected time series on the selected time range	2022-11-17 00:39:17 +02:00
Aliaksandr Valialkin	704794f164	docs/MetricsQL.md: document that input histograms must have the same set of buckets when calculating the quantile over them ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3231	2022-10-14 14:00:26 +03:00
Aliaksandr Valialkin	b631b2bd64	docs/MetricsQL.md: formatting improvements ... Also put a link to the function type in docs for every function. This should simplify understanding of MetricsQL functions for novice users.	2022-10-07 00:54:41 +03:00
Roman Khavronenko	b8c4c36b89	docs: clarify numeric label values for label_value (#3129) ... https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3114 Signed-off-by: hagen1778 <roman@victoriametrics.com> Signed-off-by: hagen1778 <roman@victoriametrics.com>	2022-09-26 16:49:45 +03:00
Dmytro Kozlov	36ea8537d9	vmselect/promql: add alphanumeric sort by label (sort_by_label_numeric) (#2982) ... * vmselect/promql: add alphanumeric sort by label (sort_by_label_numeric) * vmselect/promql: fix tests, add documentation * vmselect/promql: update test * vmselect/promql: update for alphanumeric sorting, fix tests * vmselect/promql: remove comments * vmselect/promql: cleanup * vmselect/promql: avoid memory allocations, update functions descriptions * vmselect/promql: make linter happy (remove ineffectual assigment) * vmselect/promql: add test case, fix behavior when strings are equal * vendor: update github.com/VictoriaMetrics/metricsql from v0.44.1 to v0.45.0 this adds support for sort_by_label_numeric and sort_by_label_numeric_desc functions * wip * lib/promscrape: read response body into memory in stream parsing mode before parsing it This reduces scrape duration for targets returning big responses. The response body was already read into memory in stream parsing mode before this change, so this commit shouldn't increase memory usage. * wip Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>	2022-09-14 17:42:07 +03:00
John Belmonte	eb0b2ef3d9	MetricsQL doc spellcheck (#3080)	2022-09-08 21:28:49 +03:00
Dmytro Kozlov	2cf29cc4d1	vmselect/promql: fix panic in histogram_quantiles function (#3029) ... * vmselect/promql: fix panic in histogram_quantiles function * Update docs/MetricsQL.md Co-authored-by: Roman Khavronenko <roman@victoriametrics.com> Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com> Co-authored-by: Roman Khavronenko <roman@victoriametrics.com>	2022-08-27 01:34:54 +03:00
Aliaksandr Valialkin	d39915ff8e	docs/MetricsQL.md: add the list of supported ... functions lines just before the corresponding lists ... This improves the readability a bit	2022-08-16 12:10:09 +03:00
Aliaksandr Valialkin	979444b4ed	all: fix other typos in the same way as 6f4d9b2a48 does	2022-07-18 12:10:41 +03:00
Roman Khavronenko	3ada676879	docs: reference links from key concepts (#2745) ... Signed-off-by: hagen1778 <roman@victoriametrics.com> Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>	2022-06-19 23:14:30 +03:00
Denis Fondras	53b68eb254	Fix typo (#2538)	2022-05-05 21:16:39 +03:00
Peter Dupej	9e193fb764	Update MetricsQL.md (#2519) ... remove typo from label_replace doc.	2022-05-02 09:43:57 +03:00
Aliaksandr Valialkin	83db416567	docs/MetricsQL.md: clarify keep_metric_names docs	2022-04-27 11:25:02 +03:00
Aliaksandr Valialkin	6eb1580158	app/vmselect/promql: add tlast_change_over_time(m[d]) function, which returns the timestamp for the last change of m on the given lookbehind window d	2022-04-27 10:58:40 +03:00
Aliaksandr Valialkin	a5cfe5d13e	app/vmselect/promql: add drop_common_labels() function	2022-04-21 14:20:36 +03:00
Roman Khavronenko	5b367ad594	docs: update increase_prometheus desc (#2381) ... Remove note that this func is supported by PromQL.	2022-03-28 12:29:41 +03:00
Dima Lazerka	6e8e385375	VMAnomaly docs fixes (#2361) ... * Added docs for vmanomaly * Add example images * Stylistic fixes * Move images to root * Update docs/vmanomaly.md * Update docs/vmanomaly.md Co-authored-by: Roman Khavronenko <roman@victoriametrics.com> * Squeeze vmanomaly after vmbackupmanager before Case Studies Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com> Co-authored-by: Roman Khavronenko <roman@victoriametrics.com>	2022-03-25 12:09:05 +02:00
Arash Hatami	2e01691d5d	A good change for MD files (#2353) ... * Lint YAML * Remove extra comment * Fix command problem * Format MD files * Format & fix problem of MD files for docs * Another fix for MD files	2022-03-22 14:01:04 +02:00
Aliaksandr Valialkin	5a1e4a140f	app/vmselect/promql: implement keep_metric_names modifier for transform and rollup functions ... Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/949	2022-01-14 04:15:35 +02:00
Aliaksandr Valialkin	53c9a81f2b	app/vmselect/promql: add stale_samples_over_time() function	2022-01-14 01:49:24 +02:00