Aliaksandr Valialkin
d9c3a2b605
app/vmselect/promql: add range_normalize(q1, ..., qN) function for normalizing query results into [0..1] value range
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This may be useful for analyzing correlation between time series with different value ranges
2022-11-21 23:25:00 +02:00
Aliaksandr Valialkin
05ed98c98b
app/vmselect/promql: allow using SI and IEC suffixes in numeric values inside queries
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For example, 10Ki is equivalent to 10*1024, while 5.3M is equivalent to 5.3*1000*1000
2022-11-21 21:27:55 +02:00
Aliaksandr Valialkin
a260e2659e
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 01:03:40 +02:00
Aliaksandr Valialkin
c1a3192d8b
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 00:38:48 +02:00
Aliaksandr Valialkin
646fb17237
docs/MetricsQL.md: document that input histograms must have the same set of buckets when calculating the quantile over them
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3231
2022-10-14 13:59:58 +03:00
Aliaksandr Valialkin
285e92706d
docs/MetricsQL.md: formatting improvements
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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 00:53:14 +03:00
Roman Khavronenko
36a9a834b3
docs: clarify numeric label values for label_value ( #3129 )
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https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3114
Signed-off-by: hagen1778 <roman@victoriametrics.com>
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2022-09-26 16:48:38 +03:00
Dmytro Kozlov
b75f1854c5
vmselect/promql: add alphanumeric sort by label (sort_by_label_numeric) ( #2982 )
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* 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 17:41:09 +03:00
John Belmonte
defced2599
MetricsQL doc spellcheck ( #3080 )
2022-09-08 21:28:03 +03:00
Dmytro Kozlov
2d71b4859c
vmselect/promql: fix panic in histogram_quantiles function ( #3029 )
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* 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 01:33:56 +03:00
Aliaksandr Valialkin
e0e7c14788
docs/MetricsQL.md: add the list of supported ... functions lines just before the corresponding lists
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This improves the readability a bit
2022-08-16 12:08:57 +03:00
Aliaksandr Valialkin
814bb1685f
all: fix other typos in the same way as 6f4d9b2a48 does
2022-07-18 12:08:15 +03:00
Roman Khavronenko
4b4f03fa1f
docs: reference links from key concepts ( #2745 )
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Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-06-19 23:12:10 +03:00
Denis Fondras
928728807c
Fix typo ( #2538 )
2022-05-05 21:16:03 +03:00
Peter Dupej
8688ea8aa8
Update MetricsQL.md ( #2519 )
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remove typo from label_replace doc.
2022-05-02 09:42:58 +03:00
Aliaksandr Valialkin
9bb35779d2
docs/MetricsQL.md: clarify keep_metric_names docs
2022-04-27 11:24:32 +03:00
Aliaksandr Valialkin
cce1b6d7f9
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 10:59:03 +03:00
Aliaksandr Valialkin
de892239a9
app/vmselect/promql: add drop_common_labels() function
2022-04-21 14:20:20 +03:00
Roman Khavronenko
cb878d50fc
docs: update increase_prometheus desc ( #2381 )
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Remove note that this func is supported by PromQL.
2022-03-28 11:57:03 +03:00
Dima Lazerka
1fa0f3ec89
VMAnomaly docs fixes ( #2361 )
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* 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 12:08:17 +02:00
Arash Hatami
a8de1ab000
A good change for MD files ( #2353 )
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* 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 13:40:55 +02:00
Aliaksandr Valialkin
1bdc71d917
app/vmselect/promql: implement keep_metric_names modifier for transform and rollup functions
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/949
2022-01-14 04:14:59 +02:00
Aliaksandr Valialkin
f41846d002
app/vmselect/promql: add stale_samples_over_time() function
2022-01-14 01:48:04 +02:00
Aliaksandr Valialkin
c883c15878
app/vmselect/promql: add support for @ modifier
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Add support for `@` modifier in MetricsQL according to https://prometheus.io/docs/prometheus/latest/querying/basics/#modifier
Extend the support with the following features:
* Allow using `@` modifier everywhere in the query. For example, `sum(foo) @ end()`
* Allow using arbitrary expression as `@` modifier. For example, `foo @ (end() - 1h)`
returns `foo` value at `end - 1 hour` timestamp on the selected time range `[start ... end]`
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1348
2022-01-13 22:12:06 +02:00
Aliaksandr Valialkin
974d9c0eee
app/vmselect/promql: follow-up after 177e345d8a
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* Document changes_prometheus(), increase_prometheus() and delta_prometheus() functions.
* Simplify their implementation
* Mention these functions in docs/CHANGELOG.md
2021-12-20 13:19:44 +02:00
Roman Khavronenko
8b0d340c18
docs: update MetricsQL.Subquery section description ( #1951 )
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* simplify sentences;
* fix typo.
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2021-12-16 19:09:25 +03:00
Aliaksandr Valialkin
5efe377a26
app/vmselect/promql: add timestamp_with_name(m[d]) function
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This function works the same as `timestamp()`, but doesn't remove source time series names.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/949#issuecomment-995222388
2021-12-15 23:37:07 +02:00
Aliaksandr Valialkin
e1a715b0f5
lib/storage: convert alternate regexps into Graphite wildcards inside __graphite__ pseudo-label
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For example, `{__graphite__=~"foo.(bar|baz)"}` is automatically converted to `{__graphite__=~"foo.{bar,baz}"}` before execution.
This allows using multi-value Grafana template variables such as `{__graphite__=~"foo.($app)"}`.
2021-12-14 19:51:49 +02:00
Aliaksandr Valialkin
d1f8915ed1
app/vmselect/promql: preserve the order of time series passed to limit_offset() function
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Previously time series passed to `limit_offset()` were shuffled according to hash for their labels.
This was unexpected behaviour for most users.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1920 and https://github.com/VictoriaMetrics/VictoriaMetrics/issues/951
2021-12-12 18:04:58 +02:00
Aliaksandr Valialkin
b900560b83
app/vmselect/promql: add now() function, which returns the current timestamp as a floating-point value in seconds
2021-11-17 16:35:30 +02:00
Aliaksandr Valialkin
f39ee8dc95
docs/MetricsQL.md: mention than tlast_over_time() is an alias for timestamp()
2021-11-08 18:29:24 +02:00
Aliaksandr Valialkin
3419ac1d36
app/vmselect/promql: add duration_over_time(m[d], max_interval) function
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This function calculates the actual lifetime of the time series on the given lookbehdind window `d`
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1780
2021-11-08 13:14:09 +02:00
Aliaksandr Valialkin
e44137d46b
docs/MetricsQL.md: clarify documentation for lifetime function
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1780
2021-11-08 12:35:17 +02:00
João Paulo
47d1612bf8
docs: fix multiple typos ( #1787 )
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Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2021-11-05 20:44:02 +02:00
Aliaksandr Valialkin
27044b84d2
app/vmselect/promql: add limit_offset(limit, offset, q) function, which can be used for paging over big number of time series
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1778
2021-11-03 16:02:27 +02:00
Aliaksandr Valialkin
43a58bd618
app/vmselect/promql: add label_graphite_group() function for extracting groups from Graphite metric names
2021-11-03 13:19:08 +02:00
Aliaksandr Valialkin
3d61a10367
docs/MetricsQL.md: add missing blank line before the link to github.com/VictoriaMetrics/metricsql package
2021-10-13 15:10:54 +03:00
Roman Khavronenko
2c6d86226f
docs: mention "PromQL compliance" in MetricsQL docs ( #1691 )
2021-10-11 21:21:29 +03:00
Aliaksandr Valialkin
81c6720392
app/vmselect/promql: add missing trigonometric functions, which are going to be added in Prometheus 2.31
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See https://github.com/prometheus/prometheus/issues/9233
2021-10-11 21:01:33 +03:00
Aliaksandr Valialkin
8679ba71dd
docs/MetricsQL.md: clarify docs for union() function
2021-10-11 17:40:44 +03:00
Aliaksandr Valialkin
986bed8261
docs/MetricsQL.md: add a link to https://medium.com/@romanhavronenko/victoriametrics-promql-compliance-d4318203f51e
2021-10-11 11:00:56 +03:00
Aliaksandr Valialkin
92b92d4d2c
app/vmselect/promql: consistently return the same set of time series from limitk() function
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This is the expected behaviour by most users.
2021-10-08 19:53:52 +03:00
Aliaksandr Valialkin
0e3de5a0cc
app/vmselect/promql: add topk_last and bottomk_last functions
2021-09-30 13:22:52 +03:00
Aliaksandr Valialkin
2efe0acfc9
app/vmselect/promql: add rollup_scrape_interval(m[d]) function
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It calculates the min, max and avg scrape intervals for m over the given lookbehind window d
2021-09-27 19:21:24 +03:00
Aliaksandr Valialkin
9a3d0c43b5
app/vmselect/promql: add quantiles_over_time("phiLabel", phi1, ..., phiN, m[d]) function for calculating multiple quantiles at once
2021-09-17 23:35:10 +03:00
Aliaksandr Valialkin
2951dd0a57
app/vmselect/promql: add histogram_quantiles("phiLabel", phi1, ..., phiN, buckets) function
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This function calculates multiple quantiles over the given buckets at once
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1573
2021-09-17 13:32:39 +03:00
Aliaksandr Valialkin
e60dfc96ff
app/vmselect/promql: add mad(q) and outliers_mad(tolerance, q) functions to MetricsQL
2021-09-16 13:33:53 +03:00
Dima Lazerka
56069a3022
Remove port 3000 and add https to play-grafana link ( #1616 )
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* Remove port 3000 and add https to play-grafana link
* Fix typo
Co-authored-by: Dzmitry Lazerka <dlazerka@gmail.com>
2021-09-14 14:24:30 +03:00
Aliaksandr Valialkin
a8053d9fc6
docs/MetricsQL.md: add a link to VictoriaMetrics github
2021-09-08 00:14:59 +03:00
Aliaksandr Valialkin
5ea689d61b
app/vmselect/promql: add quantile("phiLabel", phi1, ..., phiN, q) aggregate function to MetricsQL
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See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1573
2021-08-27 18:37:20 +03:00
