Commit Graph

208 Commits

Author SHA1 Message Date
luckyxiaoqiang
8ce82c5400
app/vmselect/promql: add day_of_year() function ()
Co-authored-by: dingxiaoqiang <dingxiaoqiang@bytedance.com>
Co-authored-by: Roman Khavronenko <roman@victoriametrics.com>
(cherry picked from commit d7897e0d70)
2023-11-28 12:49:48 +01:00
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
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
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
Aliaksandr Valialkin
5fd79f47f1
app/vmselect/promql: follow-up for 896c85a4a4
- Clarify the description of the change at docs/CHANGELOG.md
- Make sure that bitmap_*(X, NaN) returns NaN

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4996
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5021
2023-10-02 21:07:46 +02:00
Dmytro Kozlov
90b189dab8
app/vmselect: fix bitmap_*() functions behavior ()
Related issue: https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4996

Signed-off-by: dmitryk-dk d.kozlov@victoriametrics.com

Signed-off-by: dmitryk-dk d.kozlov@victoriametrics.com
Co-authored-by: Nikolay <nik@victoriametrics.com>
2023-10-02 20:13:27 +02:00
Aliaksandr Valialkin
538dc6058d
app/vmselect/promql: run make fmt after 3b9605dba5 2023-09-25 16:15:58 +02:00
Aliaksandr Valialkin
b43ff80d21
app/vmselect/promql: do not sort q1 or q2 results
This makes sure that `q2` series are returned after `q1` series in the same way as Prometheus does

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4763
2023-09-25 16:15:02 +02:00
Aliaksandr Valialkin
c954019e43
app/vmselect/promql: completely substitute median_over_time() WITH template with regular median_over_time() rollup function
This is a follow-up for 34d7a670d0

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5034
2023-09-25 15:31:25 +02:00
Dmytro Kozlov
5477b52991
vmagent: add validation of MetricsQL functions ()
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2023-09-15 13:16:22 +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 ()
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4441

Co-authored-by: wangm <wangmm@tuya.com>
2023-07-31 07:51:09 -07:00
Aliaksandr Valialkin
a0b7def89d
app/vmselect/promql: fix tests after 781947a7e2 2023-07-20 21:25:30 -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 ()
* metricsql: add support of using keep_metric_names for binary operations

This should help to avoid confusion with queries like one in the issue .

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
Roman Khavronenko
79eb33556e
metricsql: support optional 2nd argument for rollup functions ()
* 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
Alexander Marshalov
9bb9bd266b
fix interpolate function for filling only intermediate gaps () ()
* fix interpolate function for filling only intermediate gaps ()

* Update docs/CHANGELOG.md

---------

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2023-02-22 18:41:29 -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
e01f52d517
app/vmselect/promql: updates tests for https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3664 2023-01-17 23:26:06 -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
507e719c3f
app/vmselect/promql: add tests for d3de110070 2022-12-21 20:25:37 -08:00
Aliaksandr Valialkin
7fb314bb59
app/vmselect/promql: do not extend too short lookbehind window for rate() function if it is set explicitly
Previously too short lookbehind window d for rate(m[d]) could be automatically extended
if it didn't cover at least two raw samples. This was needed in order to guarantee
non-empty results from rate(m[d]) on short time ranges.

Now the lookbehind window isn't extended if it is set explicitly,
since it is expected that the user knows what he is doing.

The lookbehind window continues to be extended when needed if it isn't set explicitly.
For example, in the case of rate(m).

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3483
2022-12-20 00:18:32 -08:00
Aliaksandr Valialkin
808ce815e4
app/vmselect/promql: allow passing inf arg into functions, which accept numeric limit on the number of output time series
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3461
2022-12-10 22:48:01 -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
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
2d361a834d
app/vmselect/promql: properly return an empty result from limit_offset() if offset exceeds the number of inner time series
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3312
2022-11-21 16:48:10 +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
9bf8d64605
app/vmselect/promql: follow-up for 930f1ee153
Document the change at docs/CHANGELOG.md
Apply it to histogram_quantile() in the same way as to histogram_share()

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/3225
2022-10-13 12:06:24 +03:00
Aliaksandr Valialkin
baa11a778d
app/vmselect/promql: properly calculate quantiles_over_time() over a single raw sample 2022-10-06 22:37:38 +03:00
Aliaksandr Valialkin
98175493d7
app/vmselect/promql: remove empty series before applying aggregate function
Previously empty series (e.g. series with all NaN samples) were passed to aggregate functions.
Such series must be ingored by all the aggregate functions.
So it is better from consistency PoV filtering out empty series before applying aggregate functions.
2022-09-30 08:44:06 +03:00
Roman Khavronenko
273472dc20
app/vmselect: ignore empty series for limit_offset ()
* app/vmselect: ignore empty series for `limit_offset`

VictoriaMetrics doesn't return empty series (with all NaN values) to
the user. But such series are filtered after transform functions.
It means `limit_offset` will account for empty series as well.

For example, let's consider following data set:
```
time series:
foo{label="1"} NaN, NaN, NaN, NaN // empty series
foo{label="2"} 1, 2, 3, 4
foo{label="3"} 4, 3, 2, 1
```

When user requests all series for metric `foo` the empty series
will be filtered out:
```
/query=foo:
foo{label="v2"} 1, 2, 3, 4
foo{label="v3"} 4, 3, 2, 1
```

But `limit_offset(1, 1, foo)` is applied to original series, not filtered yet.
So it will return `foo{label="v2"}` (skips the first in list)
```
/query=limit_offset(1, 1, foo):
foo{label="v2"} 1, 2, 3, 4
```

Expected result would be to apply `limit_offset` to already filtered list,
so in result we receive `foo{label="v3"}`:
```
/query=limit_offset(1, 1, foo):
foo{label="v3"} 4, 3, 2, 1
```

The change does exactly that - filters empty series before applying `limit_offset`.

Signed-off-by: hagen1778 <roman@victoriametrics.com>

* app/vmselect: ignore empty series for `limit_offset`

Signed-off-by: hagen1778 <roman@victoriametrics.com>

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2022-09-30 08:44:05 +03:00
Dmytro Kozlov
36ea8537d9
vmselect/promql: add alphanumeric sort by label (sort_by_label_numeric) ()
* 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
Aliaksandr Valialkin
8aaaf221cc
app/vmselect/promql: follow-up after 2d71b4859c
- Use getScalar() function for obtaining the expected scalar from phi arg
- Reduce the error message returned to the user when incorrect phi is passed to histogram_quantiles
- Improve the description of this bugfix in the docs/CHANGELOG.md

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3026
2022-08-27 01:38:17 +03:00
Dmytro Kozlov
2cf29cc4d1
vmselect/promql: fix panic in histogram_quantiles function ()
* 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
Dmytro Kozlov
d32a6359b0
vmselect/promql: enable search.maxPointsSubqueryPerTimeseries for sub-queries ()
* vmselect/promql: enable search.maxPointsPerTimeSeriesSubquery for sub-queries

* vmselect/promql: cleanup

* vmselect/promql: rename config flag

* vmselect/promql: add tests

* vmselect/promql: use test object instead of log

* vmselect/promql: fix posible panic is subquery has more points. add description

* vmselect/promql: update tests descriptions

* vmselect/promql: update doInternal validation

* vmselect/promql: fix linter

* vmselect/promql: fix linter

* vmselect/promql: update documentation and release notes

* wip

- Properly apply -search.maxPointsSubqueryPerTimeseries limit to subqueries.
  Previously the -search.maxPointsPerTimeseries limit was unexpectedly applied to subqueries
  if it was smaller than the -search.maxPointsSubqueryPerTimeseries .
- Clarify docs for -search.maxPointsSubqueryPerTimeseries command-line flag .
- Document -search.maxPointsPerTimeseries and -search.maxPointsSubqueryPerTimeseries flags at https://docs.victoriametrics.com/#resource-usage-limits .
- Update docs/CHANGELOG.md .

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2922

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-08-24 15:27:41 +03:00
Dmytro Kozlov
ab645b5fab
vmselect/promql: add tests for vmrangeBucketsToLE ()
* vmselect/promql: add tests for vmrangeBucketsToLE

* vmselect/promql: cleanup

* vmselect/promql: cleanup

* vmselect/promql: fix panic tests want result

* vmselect/promql: cleanup

* vmselect/promql: update test name

* vmselect/promql: fix linter error

* vmselect/promql: refactor testcases

* vmselect/promql: cleanup

* vmselect/promql: remove unused reassign to workers, fix typo

* wip

* wip

* wip

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-07-26 20:43:43 +03:00
Aliaksandr Valialkin
d920b0afec
app/vmselect/promql: properly return q1 series from q1 ifnot q2 when q2 returns nothing 2022-07-18 14:24:23 +03:00
Roman Khavronenko
78da074ad3
metricsql: properly evaluate timezone_offset over time interval ()
* metricsql: properly evaluate `timezone_offset` over time interval

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2771
Signed-off-by: hagen1778 <roman@victoriametrics.com>

* Update docs/CHANGELOG.md

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-07-08 14:04:40 +03:00
Aliaksandr Valialkin
8516670582
app/vmselect/promql: properly calculate histogram_quantile over unexpected le buckets
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2819
2022-07-05 13:20:41 +03:00
Aliaksandr Valialkin
fa08220d27
app/vmselect/promql: properly handle partial counter resets in rate(), irate(), increase() and remove_resets() functions
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2787
2022-06-30 22:40:26 +03:00
Aliaksandr Valialkin
afced37c0b
all: add initial support for query tracing
See https://docs.victoriametrics.com/Single-server-VictoriaMetrics.html#query-tracing

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1403
2022-06-01 02:31:44 +03:00
Aliaksandr Valialkin
68bfa05437
app/vmselect/promql: do not return values from label_value() if the original time series has no values at the selected timestamps 2022-05-09 17:58:39 +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
dac24aa342
app/vmselect/promql: properly handle scalar default vector, scalar if vector and scalar ifnot vector queries
Previously `vector` time series could be unexpectedly returned from such queries
2022-04-21 15:34:14 +03:00