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Author SHA1 Message Date
Ivan Babrou a6b35ff304
promql: use natural sort in sort_by_label and sort_by_label_desc (#13411) 
These functions are intended for humans, as robots can already sort the results
however they please. Humans like things sorted "naturally":

* https://blog.codinghorror.com/sorting-for-humans-natural-sort-order/

A similar thing has been done to Grafana, which is also used by humans:

* https://github.com/grafana/grafana/pull/78024
* https://github.com/grafana/grafana/pull/78494

Signed-off-by: Ivan Babrou <github@ivan.computer>
 2024-01-16 21:34:09 -03:00
Jeanette Tan 2910b48180 Make mad_over_time experimental and move tests 
Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>
 2023-12-01 01:56:07 +08:00
Alexander Trost 5051a993ab promql: add sort_by_label and sort_by_label_desc functions 
This adds functions to sort a vector by its label value.

Based on https://github.com/prometheus/prometheus/pull/1533

Signed-off-by: Alexander Trost <galexrt@googlemail.com>
 2023-11-28 14:40:07 +01:00
Ivo Gosemann e22b54e253 Adds day_of_year function to PromQL 
Signed-off-by: Ivo Gosemann <ivo.gosemann@sap.com>
 2022-05-20 14:08:34 +02:00
Darshan Chaudhary c4f2e9eec5
Add present_over_time (#9097) 
* Add present_over_time

Signed-off-by: darshanime <deathbullet@gmail.com>

* Add tests for present_over_time

Signed-off-by: darshanime <deathbullet@gmail.com>

* Address PR comments

Signed-off-by: darshanime <deathbullet@gmail.com>

* Add documentation for present_over_time

Signed-off-by: darshanime <deathbullet@gmail.com>

* Update documentation

Signed-off-by: darshanime <deathbullet@gmail.com>

* Update documentation comment

Signed-off-by: darshanime <deathbullet@gmail.com>
 2021-07-29 12:38:11 +02:00
pschou aff3c702ab
promql: Add sgn, clamp and last_over_time functions (#8457) 
* Add sgn, clamp and last_over_time functions

Signed-off-by: schou <pschou@users.noreply.github.com>
 2021-02-20 16:34:52 +01:00
Ganesh Vernekar 9199fcb8d1
'@ <timestamp>' modifier (#8121) 
This commit adds `@ <timestamp>` modifier as per this design doc: https://docs.google.com/document/d/1uSbD3T2beM-iX4-Hp7V074bzBRiRNlqUdcWP6JTDQSs/edit.

An example query:

```
rate(process_cpu_seconds_total[1m]) 
  and
topk(7, rate(process_cpu_seconds_total[1h] @ 1234))
```

which ranks based on last 1h rate and w.r.t. unix timestamp 1234 but actually plots the 1m rate.

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>
 2021-01-20 16:27:39 +05:30
Ganesh Vernekar d30da66d77
Fix timestamp() method for vector selector inside paren (#8164) 
Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>
 2020-11-09 18:21:50 +05:30
Harold Dost bf7c771f54
promql: Organize legacy tests into appropriate files (#7989) 
* Separate tests into:
** Aggregators
** Functions
** Operators
** Selectors
* Remove simple files and place tests into other files.
* Eliminate some of the _over_time tests since there are already plenty of
  edge cases present in the functions.test file.

Relates to #740

Signed-off-by: Harold Dost <harolddost@gmail.com>
 2020-10-07 10:09:20 +01:00
Julien Pivotto d77b56e88e
Fix avg_over_time for nan and float64 overflows (#7346) 
* Fix avg_over_time with Inf and NaN values

Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
 2020-07-13 17:30:50 +02:00
Tobias Guggenmos 3a204be6b7 PromQL: Fix string and parentheses handling in engine (#6612) 
* WIP: PromQL: Allow engine to return strings

Signed-off-by: Tobias Guggenmos <tguggenm@redhat.com>

* Add test suggested by @roidelapluie

Signed-off-by: Tobias Guggenmos <tguggenm@redhat.com>

* Fix typo in React UI

Signed-off-by: Tobias Guggenmos <tguggenm@redhat.com>

* Fix parenthesis handling for functions and aggregator params

Signed-off-by: Tobias Guggenmos <tguggenm@redhat.com>

* Add more tests

Signed-off-by: Tobias Guggenmos <tguggenm@redhat.com>

* Fix React UI test

Signed-off-by: Tobias Guggenmos <tguggenm@redhat.com>
 2020-01-15 18:31:58 +01:00
Julien Pivotto e0afec906f add absent_over_time (#6490) 
* Implement absent_over_time

Fixes #2882

Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
 2020-01-03 15:26:12 +00:00
Ben Kochie c6399296dc
Fix spelling/typos (#4921) 
* Fix spelling/typos

Fix spelling/typos reported by codespell/misspell.
* UK -> US spelling changes.

Signed-off-by: Ben Kochie <superq@gmail.com>
 2018-11-27 17:44:29 +01:00
Thomas Jackson abf6fe0a98 Change max/min over_time to handle NaNs properly (#4386) 
We only want to return a NaN if the NaN is the only value

Signed-off-by: Thomas Jackson <jacksontj.89@gmail.com>

Fixes #4385
 2018-09-26 08:58:16 +01:00
Harsh Agarwal 18a9a390b5 Add duplicate-labelset check for range/instant vectors (#4589) 
Signed-off-by: Harsh Agarwal <cs15btech11019@iith.ac.in>
 2018-09-18 10:46:13 +01:00
Dan Cech 9f4cb06a37 use Welford/Knuth method to compute standard deviation and variance (#4533) 
* use Welford/Knuth method to compute standard deviation and variance, avoids float precision issues
* use better method for calculating avg and avg_over_time

Signed-off-by: Dan Cech <dcech@grafana.com>
 2018-08-26 10:28:47 +01:00
Krasi Georgiev 4801573b64 time() return milliseconds (#3811) 2018-02-08 11:39:13 +00:00
Fabian Reinartz ca2b68889b Merge branch 'master' into dev-2.0 2017-06-23 13:15:44 +02:00
Harsh Agarwal 16867c89a7 implement label_join issue 1147 (#2806) 
Replace OptionalArgs int with Variadic int.
 2017-06-16 14:51:22 +01:00
Brian Brazil 517b81f927 Add timestamp() function. 
Make the timestamp of instant vectors be the timestamp of the sample
rather than the evaluation. We were not using this anywhere, so this is
safe.

Add a function to return the timestamp of samples in an instant vector.

Fixes #1557
 2017-05-12 12:00:31 +01:00
Fabian Reinartz ccbce0c51f promql: handle NaN in changes() correctly 2016-09-30 11:04:25 +02:00
Matt Bostock a0201036fa PromQL: Add tests for time/date funcs with arg 
Add tests for the date and time functions where an argument is
specified.

Suggested by @grobie:
https://github.com/prometheus/prometheus/pull/1984#issuecomment-246508286

`1136239445` is the reference time used by Go:
https://golang.org/src/time/format.go
 2016-09-12 23:12:43 +01:00
Matt Bostock 9628eb5998 PromQL: Add minute() function 
Returns the minutes from the current time in UTC. Related to the
`hour()` function.

Fixes #1983.
 2016-09-12 20:34:23 +01:00
Brian Brazil 4680daf237 Default date functions to current time. 2016-08-29 18:22:12 +01:00
Brian Brazil ea1318f38b Short names of some date related functions 2016-08-23 22:34:22 +01:00
Brian Brazil d2ca2b496a Add days_in_month function. 2016-08-22 21:15:35 +01:00
Brian Brazil fd7822829c Add date related functions. 
Add day_of_month, day_of_week, hour_of_day, month_of_year and year.
This only work for UTC, and ignore leap seconds the same as Go.
 2016-08-22 21:15:30 +01:00
Fabian Stäber 08b6556ee6 Assume counters start at zero after reset. 2016-08-12 20:21:04 +02:00
Frederic Branczyk dbf83666bb add idelta function 
similar to the irate function the idelta function calculates the delta
function with the last two values
 2016-08-08 10:40:50 +02:00
Frederic Branczyk 0ce5e7fe6d move legacy test for delta function 2016-08-08 10:02:58 +02:00
Brian Brazil 0303ccc6a7 Add quantile aggregator. 2016-07-21 00:09:19 +01:00
Brian Brazil b0342ba9ec Add quantile_over_time function 2016-07-20 23:56:18 +01:00
Brian Brazil 1edd6875f5 Add stddev_over_time and stdvar_over_time. 2016-07-16 00:34:44 +01:00
Brian Brazil 3b0c182eee Move topk/bottomk unittests over to aggregators. 2016-07-04 13:18:28 +01:00
eliothedeman 1543ef92b2 Adds holt-winters query function 2016-03-28 15:42:27 -04:00
beorn7 c740789ce3 Improve predict_linear 
Fixes https://github.com/prometheus/prometheus/issues/1401

This remove the last (and in fact bogus) use of BoundaryValues.

Thus, a whole lot of unused (and arguably sub-optimal / ugly) code can
be removed here, too.
 2016-02-25 12:10:55 +01:00
Brian Brazil c77c3a8c56 promql: Limit extrapolation of delta/rate/increase 
The new implementation detects the start and end of a series by
looking at the average sample interval within the range. If the first
(last) sample in the range is more than 1.1*interval distant from the
beginning (end) of the range, it is considered the first (last) sample
of the series as a whole, and extrapolation is limited to half the
interval (rather than all the way to the beginning (end) of the
range). In addition, if the extrapolated starting point of a counter
(where it is zero) is within the range, it is used as the starting
point of the series.

Fixes #581
 2016-01-08 15:32:43 +01:00
Brian Brazil bac1f28cad Similar to topk/bottomk, have sort/sort_desc put NaN at end. 
This makes topk and bottomk consistent with the sorting functions,
as per #1271.
 2015-12-31 14:52:48 +00:00
Brian Brazil 88ca82304c Make topk/bottomk prefer returning real numbers over NaN. 2015-12-22 13:53:43 +00:00
Brian Brazil edf3e123f5 Move topk/bottomk tests from legacy. 2015-12-22 12:38:32 +00:00
James Sanford 5b53262b7a promql: Add clamp_max/clamp_min functions. 2015-11-26 13:38:06 -08:00
Brian Brazil f08abdb48b promql: Add irate() function 
irate is a rate function that only looks at the most
recent two data points, and calucaltes a per-second value
from that. This produces much more granular graphs for
fast moving data, and works sanely across many scrape intervals.

It doesn't do so well for slowly moving data.
 2015-10-09 21:44:35 +01:00
Brian Brazil 9b382647b5 Remove optional vector() 2nd argument 2015-09-13 09:13:22 +01:00
Brian Brazil 69f5fa0c1e promql: Add vector function. 
Currently the only way to convert a scalar to a vector is to
use absent(), which isn't very clean. This adds a vector()
function that's the inverse of scalar() and lets your optionally
set labels.

Example usage would be
vector(time() % 86400) < 3600
to filter to only the first hour of the day.
 2015-09-11 12:09:34 +01:00
Julius Volz 61c42c8da0 Change relabel_replace() to do full-string matches. 
THIS IS A BREAKING CHANGE.

Fixes part of https://github.com/prometheus/prometheus/issues/996
 2015-09-01 15:49:28 +02:00
Julius Volz 27ed874358 Implement label_replace() 
Implements part of https://github.com/prometheus/prometheus/issues/959.
 2015-08-18 14:20:07 +02:00
Brian Brazil d6a80c2b76 promql: Add support for predict_linear(my_timeseries[1h], 7200) 
This will give a prediction for the value of my_timeseries in 2 hours,
based on the last hour of data.
 2015-08-05 15:16:49 +01:00
Brian Brazil f34de493d5 Add increase() function, to replace delta(..., 1). 
This calculates how much a counter increases over
a given period of time, which is the area under the curve
of it's rate.

increase(x[5m]) is equivilent to rate(x[5m]) * 300.
 2015-05-26 22:49:21 +01:00
Julius Volz d44a89c6e8 Implement changes() function. 
changes() takes a range vector and returns the number of times a value
has changed in the given time window for each time series as an instant
vector.
 2015-05-26 19:06:22 +02:00
Julius Volz 6f33ed9e59 Add resets() function to count counter resets. 
resets() returns for every range vector element how many counter
resets there have been in the specified range.
 2015-05-26 17:56:52 +02:00