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54 commits

Author SHA1 Message Date
Aliaksandr Valialkin
3eca49c4a6 docs/MetricsQL.md: fix the indentation for median function 2021-08-23 12:04:43 +03:00
Aliaksandr Valialkin
a4948d92b5 docs/MetricsQL.md: typo fix: convesions->conversions 2021-08-23 12:01:34 +03:00
Aliaksandr Valialkin
8b9dc45c3c docs/MetricsQL.md: typo fixes 2021-08-23 12:00:17 +03:00
Aliaksandr Valialkin
5917c72ddd docs/MetricsQL.md: rehaul the documentation on MetricsQL 
* Document all the functions supported by MetricsQL, including PromQL functions
* Group functions by their type: rollup functions, transform functions, label manipulation functions and aggregate functions.
* Document implicit query transformations.
 2021-08-23 11:46:30 +03:00
Aliaksandr Valialkin
49886ecbc8 app/vmselect/promql: add bitmap_and(), bitmap_or() and bitmap_xor() functions to MetricsQL 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1541
 2021-08-17 13:22:15 +03:00
Aaron France
3c22b5c41e fix: typo in metrics.md docs 2021-07-27 10:53:02 +03:00
Aliaksandr Valialkin
9add9d86a6 app/vmselect/promql: duration handling improvements in MetricsQL queries 
- Support durations anywhere in MetricsQL queries. E.g. sum_over_time(m[1h])/1h is equivalent to sum_over_time(m[1h])/3600
- Support durations without suffix. E.g. rate(m[300]) is equivalent to rate(m[5m])
 2021-07-12 17:19:32 +03:00
Aliaksandr Valialkin
c97212ea63 docs/MetricsQL.md: add a link to technical details about rate() and increase() calculations in Prometheus and VictoriaMetrics 2021-05-28 13:14:23 +03:00
Dan Fredell
e05c03cf00 Fix quote difference on label_move example (#1321) 
Fix quote difference on label_move example
 2021-05-25 12:13:39 +03:00
Aliaksandr Valialkin
e9a63a5942 docs/MetricsQL.md: add a link to a list of supported timezones that can be passed to timezone_offset() function 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1306
 2021-05-21 16:56:07 +03:00
Aliaksandr Valialkin
180829b8c2 app/vmselect/promql: add timezone_offset(tz) function 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1306
 2021-05-20 11:54:06 +03:00
Roman Khavronenko
c47825c255 Docs update from victoriaMetrics.github.io (#1302) 
* port change from 11ca65677b

* port change from afb41dfa43

* port change from f82e3733c9

* port change from d499ab0502
 2021-05-17 01:51:54 +03:00
Aliaksandr Valialkin
2bd99046a1 docs: update docs order 2021-04-24 01:28:13 +03:00
f41gh7
b493937815 updates per-tenant stats docs 
changes docs order
changes per-tenant-stats pic
 2021-04-14 12:31:51 +03:00
Roman Khavronenko
ff3711eea2 docs: update docs ordering and formatting (#1192) 
The major change is adding `sort` directive to docs. For those docs which are copied
from internal packages `sort` is added via makefile command. For the rest it is added
manually since they're updated manually as well.

The rest of changes is connected with markdown formatting. For example, changing headers
in some files (`##` => `#`) makes navigation on .github.io to look better. This especially
useful for `changelog` docs.

Table of contents for `vmctl` is dropped, since we already have it autogenerated on .github.io.

No link changes expected. The corresponding PR to `cluster` branch will be made in follow-up PR.
 2021-04-07 13:43:01 +03:00
Aliaksandr Valialkin
4aa59cae7c app/vmselect/promql: do not delete dst_label if src_label is empty in label_copy(q, src_label, dst_label) and label_move(q, src_label, dst_label) 2021-04-03 22:06:50 +03:00
Aliaksandr Valialkin
b9469de410 app/vmselect/promql: add ability to set label value additionally to label name for the remaining sum of time series returned from topk_* and bottomk_* functions in the form: topk_min(N, m, "label=value") 2021-04-02 23:56:30 +03:00
John Belmonte
edf39aa225 spelling fix: adjacent (#1115) 2021-03-09 09:19:16 +02:00
Aliaksandr Valialkin
5277507932 app/vmselect/promql: add histogram_avg(), histogram_stddev() and histogram_stdvar() functions to MetricsQL 2021-03-04 14:12:52 +02:00
Aliaksandr Valialkin
5dbe88a1c6 app/vmselect/promql: add increase_pure() function to MetricsQL 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/962
 2021-02-22 19:15:31 +02:00
Aliaksandr Valialkin
4b930b9ffe app/vmselect: add ability to set Graphite-compatible filter via {__graphite__="foo.*.bar"} syntax 2021-02-03 01:17:19 +02:00
Aliaksandr Valialkin
c5bdab5a4c app/vmselect/promql: add ability to pass multiple labels to sort_by_label and sort_by_label_desc functions 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/992
 2021-01-13 12:43:47 +02:00
Aliaksandr Valialkin
df6e399f73 app/vmselect/promql: add tfirst_over_time(m[d]) and tlast_over_time(m[d]) MetricsQL functions for returning timestamps for the first and the last samples in m over d 2021-01-12 16:12:47 +02:00
Aliaksandr Valialkin
c0db28cd9a docs/MetricsQL.md: clarify that limitk(k, q) returns an arbitrary set of k time series with each call 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/951
 2020-12-12 14:18:02 +02:00
Aliaksandr Valialkin
d242c2f2bd app/vmselect/promql: add count_eq_over_time(m[d], N) and count_ne_over_time(m[d], N) for calculating the number of samples in m over d that are equal / not equal to N 2020-12-05 12:31:01 +02:00
Aliaksandr Valialkin
8cf76d8747 app/vmselect/promql: add label_uppercase(q, label1, ... labelN) and label_lowercase(q, label1, ... labelN) functions 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/936
 2020-12-03 21:46:18 +02:00
John Belmonte
7ac49ac176 MetricsQL docs: parameter consistency (#915) 
* MetricsQL docs: parameter consistency

if I understand correctly:
  * `fun(q)` - fun takes instant vector
  * `fun(m[d])` - fun takes range vector

* Update docs/MetricsQL.md

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
 2020-11-20 11:43:07 +02:00
Aliaksandr Valialkin
6ce80425a6 docs/MetricsQL.md: fix a link to with templates page 2020-11-05 16:12:59 +02:00
Aliaksandr Valialkin
40a4f5ded4 docs/MetricsQL.md: add missing whitespace 2020-11-02 23:49:45 +02:00
Aliaksandr Valialkin
c4464594b7 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 2020-10-20 20:09:55 +03:00
Aliaksandr Valialkin
9b91305a31 docs/MetricsQL.md: small clarifications 2020-10-17 12:01:33 +03:00
Aliaksandr Valialkin
ac525462ce docs/MetricsQL.md: mention that VictoriaMetrics keeps metric names after applying functions which dont change time series meaning 2020-10-12 13:25:28 +03:00
John Belmonte
a72a2566d7 fix typo on outliersk() doc (#758) 2020-09-11 01:59:55 +03:00
Aliaksandr Valialkin
478d8f8393 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 15:28:58 +03:00
Aliaksandr Valialkin
285665e93b app/vmselect/promql: allow passing multiple args to aggregate functions such as avg(q1, q2, q3) 2020-08-15 01:15:16 +03:00
Aliaksandr Valialkin
87d7710c8e docs/MetricsQL.md: mention that MetricsQL removes all the NaN values from results 2020-08-07 07:51:40 +03:00
Aliaksandr Valialkin
bdb881c43b app/vmselect/promql: add zscore-related functions: zscore_over_time(m[d]) and zscore(q) by (...) 2020-08-03 21:52:15 +03:00
Aliaksandr Valialkin
312acf7ce9 docs/MetricsQL.md: small fixes in the docs 2020-07-28 13:28:01 +03:00
Aliaksandr Valialkin
cf69b1ea6f 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 16:14:12 +03:00
Aliaksandr Valialkin
8d1721d128 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 01:17:15 +03:00
Aliaksandr Valialkin
4d2011a87d app/vmselect/promql: add mode() aggregate function 2020-07-20 15:30:11 +03:00
Aliaksandr Valialkin
427fa43ce2 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 18:29:10 +03:00
Aliaksandr Valialkin
c64914a7e4 app/vmselect/promql: keep all labels for time series from any() call 2020-07-17 15:17:37 +03:00
Aliaksandr Valialkin
f10e8809c0 app/vmselect: add interpolate function for filling gaps with linearly interpolated values 
See https://stackoverflow.com/q/62565021/274937 for details
 2020-07-02 14:54:46 +03:00
Aliaksandr Valialkin
d83c68ca03 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 12:06:34 +03:00
Aliaksandr Valialkin
ec6fb5a323 docs/MetricsQL.md: add a link to https://medium.com/@valyala/promql-tutorial-for-beginners-9ab455142085 2020-05-20 00:51:27 +03:00
Aliaksandr Valialkin
fc81ea38d4 app/vmselect/promql: add outliersk(N, m) aggregate function for anomaly detection across groups of similar time series 2020-05-19 13:52:44 +03:00
Aliaksandr Valialkin
408ade27a9 app/vmselect/promql: add any(x) by (y) aggregate function, which returns any time series from q for each group y 2020-05-12 19:50:29 +03:00
Aliaksandr Valialkin
21c2982ac8 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 19:50:12 +03:00
Aliaksandr Valialkin
8f591b848a docs/MetricsQL.md: document first_over_time and last_over_time functions 2020-05-03 12:47:16 +03:00