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95 Commits

Author SHA1 Message Date
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
Fabian Reinartz
e3b6ec9784 Switch to common/log 2015-10-03 10:21:43 +02:00
Brian Brazil
653ff71f1f promql: Reduce flakiness of concurrency test 2015-09-23 10:07:30 +01:00
Fabian Reinartz
171f50706a Fix unkeyed field errors. 2015-09-18 17:00:08 +02:00
Fabian Reinartz
36ec8ba460 Fix missing return on error 2015-09-18 16:50:13 +02:00
Fabian Reinartz
e005f939fd Fix scalar construction in function 2015-09-18 16:49:32 +02:00
Fabian Reinartz
eca41f5319 Run gofmt 2015-09-16 14:33:12 +02:00
Brian Brazil
fa793d917e Merge pull request #1080 from prometheus/query-timeout-test 
promql: Bump sleep in query timeout test
 2015-09-14 13:00:47 +01:00
Brian Brazil
ce7f31e03c promql: Bump sleep in query timeout test 
This test is flaky, I'm presuming the time.AfterFunc
call is being delayed so the evaluation isn't getting
cancelled.
 2015-09-14 11:49:18 +01:00
Julius Volz
347630431c Merge pull request #1077 from prometheus/cleanups 
Fix some dead code, missing error checks, shadowings.
 2015-09-14 12:37:26 +02:00
Julius Volz
af513468eb Fix some dead code, missing error checks, shadowings. 
I applied
https://medium.com/@jgautheron/quality-pipeline-for-go-projects-497e34d6567
and was greeted with a deluge of warnings, most of which were not
applicable or really fixable realistically. These are some of the first
ones I decided to fix.
 2015-09-14 12:21:34 +02:00
Brian Brazil
29de4ee2b0 Merge pull request #1078 from prometheus/whats-our-vector-victor 
Remove optional vector() 2nd argument
 2015-09-13 14:14:20 +01:00
Brian Brazil
9b382647b5 Remove optional vector() 2nd argument 2015-09-13 09:13:22 +01:00
Fabian Reinartz
a1617d90f4 Merge pull request #1073 from prometheus/whats-our-vector-victor 
promql: Add vector function.
 2015-09-12 08:36:13 +02:00
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
6d3e054692 Fix bool modifier in recording rules and printing. 
Fixes https://github.com/prometheus/prometheus/issues/1065
 2015-09-10 01:37:05 +02:00
Brian Brazil
9ec11b1847 Merge pull request #1049 from prometheus/bool-nofilter 
promql: Add 'bool' modifier to comparison functions
 2015-09-03 15:08:38 +01:00
Brian Brazil
29e8dc2c49 promql: Add 'bool' modifier to comparison functions 
When doing comparison operations on vectors, filtering
sometimes gets in the way and you have to go to a fair bit of
effort to workaround it in order to always return a result.
The 'bool' modifier instead of filtering returns 0/1 depending
on the result of the compairson.

This is also a prerequisite to removing plain scalar/scalar comparisons,
as it maintains the current behaviour under a new syntax.
 2015-09-02 14:51:44 +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
744d5d5a7a Merge pull request #1029 from prometheus/vet-fixes 
Fix "go vet" errors.
 2015-08-26 12:50:18 +02:00
Julius Volz
995d3b831d Fix most golint warnings. 
This is with `golint -min_confidence=0.5`.

I left several lint warnings untouched because they were either
incorrect or I felt it was better not to change them at the moment.
 2015-08-26 12:44:46 +02:00
Julius Volz
963ad82dcb Fix "go vet" errors. 
I ignored all errors of the type "composite literal uses unkeyed
fields". Most of them are wrong because of
https://github.com/golang/go/issues/9171.
 2015-08-26 02:05:04 +02:00
Julius Volz
077a753e6b Merge pull request #1006 from prometheus/true-values 
promql: Remove interpolation of vector values.
 2015-08-25 16:11:07 +02:00
Fabian Reinartz
d6b8da8d43 Switch promql types to common/model 2015-08-25 13:49:14 +02:00
Brian Brazil
fb585e4591 promql: Remove interpolation of vector values. 
The current behaviour produces values that are not
from rules or scrapes. So if for example I have
a boolean 0/1 it can be returned as 0.2344589. This
prevents a number of advanced use cases, introduces
race conditions and can produce misleading graphs.
 2015-08-24 17:37:31 +01:00
Fabian Reinartz
1535ef1457 Replace metric.SamplePair with model.SamplePair 2015-08-22 14:52:35 +02:00
Fabian Reinartz
438e232c9b Fix grouping of import blocks 2015-08-22 09:42:45 +02:00
Fabian Reinartz
306e8468a0 Switch from client_golang/model to common/model 2015-08-21 13:33:38 +02:00
Brian Brazil
296f551418 Merge pull request #1014 from prometheus/scalar-rules 
rules: Allow recorded rules expressions to be scalars.
 2015-08-19 22:10:49 +01:00
Brian Brazil
e6a67476c2 rules: Allow recorded rules expressions to be scalars. 
This is useful if you want to build up a constant metric,
such as a set of alert thresholds that vary by label value.
 2015-08-19 21:09:00 +01:00
Laurie Malau
cdf38ab93a Log runtime errors during query evaluation instead of panicking. 2015-08-19 16:56:41 +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
Fabian Reinartz
690b5f1575 Remove multi-statement queries 
This commit removes the possibility to have multi-statement queries
which had no full support anyway. This makes the caller responsible
for multi-statement semantics.
Multiple tests are no longer timing-dependent.
 2015-08-10 14:26:20 +02:00
Julius Volz
e324910ff2 Merge pull request #936 from prometheus/predict 
promql: Add support for predict(my_timeseries[1h], 2h)
 2015-08-05 16:40:51 +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
Fabian Reinartz
579fdf65e2 Implement unary expression for vector types. 
Closes #956
 2015-08-04 15:46:36 +02:00
Fabian Reinartz
c322422412 Merge pull request #954 from prometheus/fabxc/fuzz-fix 
Add missing check for nil expression
 2015-08-03 16:48:20 +02:00
Fabian Reinartz
adf109795c forbid unexpected (runtime) errors in parse tests 2015-08-03 12:53:31 +02:00
Fabian Reinartz
c20e25f718 Add missing check for nil expression 2015-08-03 12:28:40 +02:00
Brian Brazil
a0f0b82348 promql: Test errors aren't always ParseErr 2015-08-02 23:26:21 +01:00
Fabian Reinartz
5279d50d92 Handle parser runtime panics gracefully 2015-08-02 13:42:18 +02:00
Julius Volz
4e4b468fba Fix lexer bug treating non-Latin Unicode digits as digits. 
Fixes https://github.com/prometheus/prometheus/issues/939
 2015-07-29 02:11:13 +02:00
Fabian Reinartz
3d67d75935 promql: implement JSON array format for scalar and string 2015-07-06 13:09:26 +02:00
Fabian Reinartz
77e8983221 promql: add MarshalJSON method for SamplePair 2015-07-06 10:29:59 +02:00
Fabian Reinartz
c1d37bc55b Merge pull request #843 from prometheus/fabxc/runbook 
promql: add runbook to alert statement.
 2015-06-25 14:07:45 +02:00
Fabian Reinartz
70d7a987a7 promql: add json tags, fix query constructor. 2015-06-25 13:44:05 +02:00
Fabian Reinartz
749ae450c5 promql: add runbook to alert statement. 
This commit adds the RUNBOOK keyword to alert statements. The field
is optional and expected to be a link.
 2015-06-25 13:00:52 +02:00
Fabian Reinartz
7f85b9b215 promql: add MarshalJSON method for ExprType. 2015-06-25 12:01:26 +02:00
Fabian Reinartz
1eff186555 Merge pull request #810 from prometheus/fabxc/lmatch 
Match empty labels.
 2015-06-22 15:45:50 +02:00
Fabian Reinartz
5b91ea9b36 storage: improve label matching and allow unset matching. 
Matching of empty labels now also matches metrics where the label
was not explicitly set to the empty string.
 2015-06-22 15:33:44 +02:00