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1103 Commits

Author SHA1 Message Date
beorn7 713e6eb604 Let NewConst... functions detect invalid Desc 
The error of the invalid Desc is returned in that case.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-17 11:50:42 +02:00
beorn7 b7b390014b Reformat doc comment of InstrumentHandler 
To help linters detect the Deprecated message.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-14 13:24:05 +02:00
beorn7 cec67c9ec8 Improve deprecated doc comment 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-14 12:48:16 +02:00
Björn Rabenstein 1362cad3aa
Merge pull request #458 from prometheus/beorn7/registry 
Wrappable registerers
 2018-09-14 12:15:22 +02:00
beorn7 fe28f32433 Discourage prefixing every metris with WrapRegistererWithPrefix 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-14 11:59:13 +02:00
beorn7 cf9b2a8c78 Rename WrapWith... to WrapRegistererWith... 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-13 17:43:05 +02:00
beorn7 837c7cb1f4 Update Collector example 
It now uses the new WrapWith function instead of ConstLabels. Describe
is now implemented via DescribeByCollect.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-12 15:34:13 +02:00
beorn7 84d7aa0cd9 Add wrapping of Registerers with labels and prefix 
Essentially middleware for Registerers!

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-12 15:34:07 +02:00
Björn Rabenstein b5bfa0eb2c
Merge pull request #457 from prometheus/beorn7/histogram 
Lock-free atomic observations in Histograms!
 2018-09-12 15:04:00 +02:00
beorn7 1b2bd1d665 Make Histogram observations atomic while keeping them lock-free 
Fixes #275

This is rather tricky and required some studying of the Go memory
model. I have added copious code comments to explain what's going on.

Benchmarks haven't changed significantly, despite the additional
atomic operations now required during Observe. Write performance is
noticable, but it is also much more involved now and has a mutex. (But
note that Write is supposed to be a relatively rare operation and thus
not in the hot path compared to Observe.) Allocs haven't changed at
all.

OLD:

BenchmarkHistogramWithLabelValues-4     10000000               151 ns/op               0 B/op          0 allocs/op
BenchmarkHistogramNoLabels-4            50000000                36.0 ns/op             0 B/op          0 allocs/op
BenchmarkHistogramObserve1-4            50000000                28.1 ns/op             0 B/op          0 allocs/op
BenchmarkHistogramObserve2-4            10000000               160 ns/op               0 B/op          0 allocs/op
BenchmarkHistogramObserve4-4             5000000               378 ns/op               0 B/op          0 allocs/op
BenchmarkHistogramObserve8-4             2000000               768 ns/op               0 B/op          0 allocs/op
BenchmarkHistogramWrite1-4               1000000              1589 ns/op             896 B/op         37 allocs/op
BenchmarkHistogramWrite2-4                500000              2973 ns/op            1792 B/op         74 allocs/op
BenchmarkHistogramWrite4-4                300000              6979 ns/op            3584 B/op        148 allocs/op
BenchmarkHistogramWrite8-4                100000             10701 ns/op            7168 B/op        296 allocs/op

NEW:

BenchmarkHistogramWithLabelValues-4     10000000               191 ns/op               0 B/op          0 allocs/op
BenchmarkHistogramNoLabels-4            30000000                50.1 ns/op             0 B/op          0 allocs/op
BenchmarkHistogramObserve1-4            30000000                40.0 ns/op             0 B/op          0 allocs/op
BenchmarkHistogramObserve2-4            20000000                91.5 ns/op             0 B/op          0 allocs/op
BenchmarkHistogramObserve4-4             5000000               317 ns/op               0 B/op          0 allocs/op
BenchmarkHistogramObserve8-4             2000000               636 ns/op               0 B/op          0 allocs/op
BenchmarkHistogramWrite1-4               1000000              2072 ns/op             896 B/op         37 allocs/op
BenchmarkHistogramWrite2-4                300000              3729 ns/op            1792 B/op         74 allocs/op
BenchmarkHistogramWrite4-4                200000              7847 ns/op            3584 B/op        148 allocs/op
BenchmarkHistogramWrite8-4                100000             16975 ns/op            7168 B/op        296 allocs/op

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-12 15:03:44 +02:00
beorn7 1e08f788cf Add test to expose #275 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-07 19:04:00 +02:00
Björn Rabenstein 7858729281
Merge pull request #456 from prometheus/beorn7/process_collector 
Rework process collector
 2018-09-07 12:25:42 +02:00
beorn7 773f502723 Rework process collector 
This unifies both constructors in one with an options argument.

The options argument allows to switch on error reporting, as discussed
in #219.

The change of the contructor signature is breaking, but only mildly
so. Plus, the process collector is rarely used explicitly. I used
Sourcegraph to search for public usages, with the following results:

- 2 occurrences of NewProcessCollectorPIDFn, once in @discordianfish's
  glimpse, once in @fabxc's etcd_exporter (deprecated anyway). Both
  are Prom veterans and will simply do the one line change if needed.
- 8 occurrences of NewProcessCollector, of which 7 are of the form
    NewProcessCollector(os.Getpid(), "")
  Thus, it's a very easy change, which I even hinted at in the doc
  comment.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-07 12:09:26 +02:00
Björn Rabenstein 3525612fea
Merge pull request #455 from prometheus/beorn7/desc 
Add a DescribeByCollect helper
 2018-09-05 14:55:05 +02:00
beorn7 6803bb4021 Add a DescribeByCollect helper 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-05 14:10:51 +02:00
Björn Rabenstein 2dbc3a58c2
Merge pull request #454 from prometheus/beorn7/testing 
Add a single-value extractor and general package doc
 2018-09-04 14:48:51 +02:00
beorn7 74a2f46d2c Add package documentation 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-04 14:02:20 +02:00
beorn7 1301cf8fcd Add helper function to extract a simple float value from a metric 
Signed-off-by: beorn7 <beorn@soundcloud.com>

foo
 2018-09-04 14:02:19 +02:00
Björn Rabenstein d968d2292e
Merge pull request #453 from prometheus/beorn7/deprecation 
Un-export prometheus.LabelPairSorter
 2018-09-03 17:41:12 +02:00
beorn7 da330f4281 Un-export prometheus.LabelPairSorter 
The only known external usage of it was in prometheus/pushgateway,
where it was removed by
https://github.com/prometheus/pushgateway/pull/200 .

Originally, the expectation was that users would implement the Metric
interface now and then. As we know now, neither it is happening, nor
would it make a lot of sense. (Users implement the Collector interface
instead.) By now, LabelPairSorter is essentially noise in the already
quite cluttered namespace in the prometheus package.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-03 16:20:55 +02:00
Björn Rabenstein a10423e9da
Merge pull request #445 from prometheus/beorn7/testing 
Add testutil package
 2018-09-03 00:31:34 +02:00
Björn Rabenstein 74cfc2394a
Merge pull request #452 from prometheus/beorn7/testing2 
Create an internal package
 2018-09-03 00:31:06 +02:00
beorn7 7be86f93c1 Create an internal package 
This is for types we don't want to export but which are used in
different packages within client_golang.

Currently, that's only NormalizeMetricFamilies (used in the prometheus
package and in the testutil package). More to be added as needed.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-03 00:18:11 +02:00
beorn7 5ba0993f6f Improved interface 
- Expected text format is now read from an io.Reader.
- Metrics are gathered from a Gatherer.
- Added a convenience wrapper to collect from a Collector.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-02 21:07:38 +02:00
Björn Rabenstein 676eaf6b94
Merge pull request #451 from prometheus/beorn7/ci 
Add test-short target and use it in CI
 2018-08-28 22:48:07 +02:00
beorn7 db9651a839 Add test-short target and use it in CI 
This is reinstating the old behavior. The longer tests are not only
long but also flaky. (The former is by design, the latter is a bug.)

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-08-28 15:13:08 +02:00
Björn Rabenstein 1216062c28
Merge pull request #448 from tariq1890/fix_docker_label 
Using the recommended label syntax for maintainer in Dockerfile.
 2018-08-28 15:00:45 +02:00
Björn Rabenstein 3653aff4d5
Merge pull request #450 from hotpxl/master 
Typo in summary.go
 2018-08-28 00:10:46 +02:00
Yutian Li 94f32c433e typo 
Signed-off-by: Yutian Li <hotpxless@gmail.com>
 2018-08-27 12:01:30 -04:00
Tariq Ibrahim 6b1dd88302 Using the recommended label syntax for maintainer in Dockerfile. 
Signed-off-by: Tariq Ibrahim <tariq.ibrahim@microsoft.com>
 2018-08-27 08:28:47 -07:00
Guillaume Le Floch 4eb539fa85 Add prometheus common makefile (#446) 
* Add prometheus common makefile
* Override test target to depends on get_dep
* Exclude staticcheck for go version 1.7.x and 1.8.x

Signed-off-by: glefloch <glfloch@gmail.com>
 2018-08-24 12:10:16 +02:00
beorn7 154f28a316 Fix import grouping 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-08-23 00:05:02 +02:00
beorn7 e60f998e9b Make license headers consistent 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-08-22 23:59:40 +02:00
beorn7 df0210c26c Rename testutils to testutil and move below prometheus dir 
`testutil` is more in line with stdlib naming conventions.

The package should be below `prometheus` as it only provides utils to
test exposition code, not to test HTTP client code.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-08-22 23:57:08 +02:00
beorn7 fc4994c93c Remove removeUnusedWhitespace 
It wasn't needed, as is now proven by the tests

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-08-22 23:54:26 +02:00
beorn7 545fe31ad6 Merge branch 'testutils' of git://github.com/brancz/client_golang into beorn7/testing 2018-08-22 23:48:23 +02:00
Björn Rabenstein ebce7d0078
Merge pull request #444 from glefloch/license 
Add missing license headers
 2018-08-22 19:59:59 +02:00
glefloch 61943b1eff Remove Makefile 
Signed-off-by: glefloch <glfloch@gmail.com>
 2018-08-22 16:53:48 +02:00
glefloch 949c45bad2 Add missing header and fix review comments 
Signed-off-by: glefloch <glfloch@gmail.com>
 2018-08-22 15:32:42 +02:00
glefloch 0d7f5cb39b Add check license in CI 
Signed-off-by: glefloch <glfloch@gmail.com>
 2018-08-22 14:35:50 +02:00
glefloch cb71127117 Add missing license headers 
Signed-off-by: glefloch <glfloch@gmail.com>
 2018-08-22 13:53:56 +02:00
Björn Rabenstein 29e6500a95
Merge pull request #443 from prometheus/beorn7/timestamp 
Add a wrapper to add a timestamp to a metric
 2018-08-21 15:54:28 +02:00
beorn7 abaece07d1 Fix import grouping 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-08-18 16:02:33 +02:00
beorn7 5240f7e8f5 Add a wrapper to add a timestamp to a metric 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-08-18 15:56:08 +02:00
Frederic Branczyk 5b23715fac
Merge pull request #440 from simonpasquier/fix-vm-metric-name 
Update the name of the maximum VM metric
 2018-08-08 10:05:07 +02:00
Simon Pasquier d6dbfbfc28 Update the name of the maximum VM metric 
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
 2018-08-08 08:09:48 +02:00
Björn Rabenstein 420e2efa8f
Merge pull request #438 from simonpasquier/add-max-vsize-process-metric 
Add process_maximum_virtual_memory_bytes metric
 2018-08-07 21:38:51 +02:00
Björn Rabenstein 0d7f07276c
Merge pull request #439 from lidalei/master 
go routine to goroutine
 2018-08-07 21:35:41 +02:00
Dalei Li 927ca8e4f4 go routine to goroutine 
Signed-off-by: Dalei Li <dalei.li@icloud.com>
 2018-08-07 21:23:58 +02:00
Simon Pasquier 4ab15af0dc Add process_maximum_virtual_memory_bytes metric 
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
 2018-08-07 17:10:30 +02:00