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27 Commits

Author SHA1 Message Date
Björn Rabenstein
41035469d3
Document the native histogram feature flag and PromQL (#11446) 
Signed-off-by: beorn7 <beorn@grafana.com>
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
Co-authored-by: Ganesh Vernekar <ganeshvern@gmail.com>
 2022-10-14 18:16:12 +05:30
SuperQ
a3dd323a53
Make regex-matching docs more obvious 
Split out the note about regex-matching into a separate paragraph to
make it more obvious. Move it up, closer to the definition.

Signed-off-by: SuperQ <superq@gmail.com>
 2022-01-14 23:18:31 +01:00
beorn7
b39f2739e5 PromQL: Always enable negative offset and @ modifier 
This follows the line of argument that the invariant of not looking
ahead of the query time was merely emerging behavior and not a
documented stable feature. Any query that looks ahead of the query
time was simply invalid before the introduction of the negative offset
and the @ modifier.

Signed-off-by: beorn7 <beorn@grafana.com>
 2022-01-11 17:08:55 +01:00
Levi Harrison
b9b5adfe62 Rename links 
Signed-off-by: Levi Harrison <git@leviharrison.dev>
 2021-08-06 21:54:44 -06:00
schou
65658091ed moved details of feature to disabled features.md 
Signed-off-by: schou <pschou@users.noreply.github.com>
 2021-03-03 21:42:17 -05:00
schou
946dba6a7f small suggested changes 
Signed-off-by: schou <pschou@users.noreply.github.com>
 2021-03-03 21:35:51 -05:00
schou
71712183ac minor wording updates 
Signed-off-by: schou <pschou@users.noreply.github.com>
 2021-02-23 20:26:35 -05:00
schou
22cd48868a adding feature flag, promql-negative-offset 
Signed-off-by: schou <pschou@users.noreply.github.com>
 2021-02-23 20:25:56 -05:00
schou
8aa9cc3978 add blob to basics documentation about negative shift 
Signed-off-by: schou <pschou@users.noreply.github.com>
 2021-02-23 20:25:56 -05:00
Ganesh Vernekar
86c71856e8
Add start() and end() pre-processors for @ modifier (#8425) 
* Add start() and end() pre-processors for @ modifier

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>

* Fix reviews

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>

* Fix review comments

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>

* Fix review comments

Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>
 2021-02-09 21:33:16 +05:30
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
Justin Toh
5f103aaecc
docs: Fix "time duration" link (#8209) 
Signed-off-by: Justin Toh <tohjustin@hotmail.com>
 2020-11-20 12:25:45 +00:00
Julien Pivotto
d867491364
Human-friendly durations in PromQL (#7713) 
* Add support for user-friendly durations

Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
 2020-08-04 21:12:41 +02:00
Julius Volz
9da59c856d
Improve scalar literal format documentation (#7651) 
* Improve scalar literal format documentation

Signed-off-by: Julius Volz <julius.volz@gmail.com>

* Address review comments

Signed-off-by: Julius Volz <julius.volz@gmail.com>

* Fixup

Signed-off-by: Julius Volz <julius.volz@gmail.com>
 2020-07-25 13:34:57 +02:00
Brian Brazil
44ad28dd5e
PromQL: Allow more keywords as metric names (#6933) 
* Allow more keywords as metric names
* Add documentation about forbidden keywords

Signed-off-by: Tobias Guggenmos <tobias.guggenmos@uni-ulm.de>
 2020-03-05 13:20:53 +00:00
Tobias Guggenmos
1e0cd28bf6 PromQL: Support trailing commas in grouping opts (#6480) 
* PromQL: Support trailing commas in grouping opts

Fixes #6470

Signed-off-by: Tobias Guggenmos <tguggenm@redhat.com>
 2019-12-20 11:28:56 +00:00
Julien Pivotto
2a190d1168 Fix small typo in docs (#6345) 
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
 2019-11-20 10:12:47 +01:00
Tobias Guggenmos
fbcf41c90b doc: Add documentation about comments in PromQL (#6198) 
* Add documentation about comments

Signed-off-by: Tobias Guggenmos <tguggenm@redhat.com>
 2019-10-25 11:01:59 +01:00
Semyon Slepov
33f085a4d6 Remove bits about substring matching from the docs (#5549) 
Substring matching for labels doesn't work anymore.
These parts are misleading, and contradict with the rest of the
documentation.

Signed-off-by: Semyon Slepov <slepovss@gmail.com>
 2019-05-09 11:12:32 +01:00
Ganesh Vernekar
dbe55c1352 Subquery (#4831) 
Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>
 2018-12-22 13:47:13 +00:00
Julius Volz
c96828fb57 Mention PromQL by name in querying basics doc (#4996) 
Signed-off-by: Julius Volz <julius.volz@gmail.com>
 2018-12-18 11:57:00 +01:00
Brian Brazil
cd54add5b8
Clarify that {a="b",a!="c"} is possible. (#4492) 
Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
 2018-08-13 11:38:57 +01:00
Matthias Rampke
cae4538b3e Docs: state that all regular expressions are RE2. (#3518) 
We already mentioned that regular expressions are RE2 for
[relabeling][0], but left open what the regular expression syntax
anywhere else is.

In the querying examples and reference, make it explicit that _all_
regular expressions are RE2.

[0]: https://prometheus.io/docs/prometheus/latest/configuration/configuration/#relabel_config
 2017-12-01 17:26:06 +00:00
Ben Kochie
40f33f45cb Fix docs that use regexp anchors (#3504) 
Remove/fix docs that use anchors in label regexp matches.
 2017-11-22 12:11:21 +00:00
Brian Brazil
7187771f20
Document new staleness (#3380) 
Remove "interpolation" for this heading, that hasn't
been in these docs for a long time.
 2017-11-01 12:40:47 +00:00
Tobias Schmidt
f432b8176d Consolidate configuration and rules docs in docs/configuration/ 2017-10-27 09:54:02 +02:00
Tobias Schmidt
e6cdc2d355 Import querying documentation from prometheus/docs 2017-10-26 22:36:47 +02:00