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Author SHA1 Message Date
beorn7 6c520f6aca Add test to expose #580 
Tests are heavily inspired by @shturec, see #584.

Signed-off-by: beorn7 <bjoern@rabenste.in>
 2019-05-16 17:52:19 +02:00
Björn Rabenstein 775f94f6fc
Merge pull request #581 from prometheus/beorn7/test 
Fix race in TestGoCollectorMemStats
 2019-05-16 15:31:37 +02:00
beorn7 e91cd81632 Remove outdated use-case description from doc comment 
We stopped advertising binary-wide setting of a label quite a while
ago. This doc comment was missed in the cleanup.

Signed-off-by: beorn7 <bjoern@rabenste.in>
 2019-05-16 11:23:48 +02:00
beorn7 709dc4b1de Fix race in TestGoCollectorMemStats 
Related to #573 (but only partially fixes it).

Signed-off-by: beorn7 <bjoern@rabenste.in>
 2019-05-16 10:37:37 +02:00
Camilo Viecco facfcc21f8 fix regression issue 574 
Signed-off-by: Camilo Viecco <camilo_viecco1@symantec.com>
 2019-05-14 11:44:55 -07:00
beorn7 886e2ee0c0 Clarify deprecation of `DefObjectives` 
Previously, the whole `Objectives` field was marked as deprecated by
linters.

Signed-off-by: beorn7 <bjoern@rabenste.in>
 2019-05-08 13:38:43 +02:00
Björn Rabenstein 2d3b0fe0e0
Merge pull request #568 from prometheus/beorn7/go-collector 
Return previous memstats if Go collector needs longer than 1s
 2019-05-07 00:10:32 +02:00
Bjoern Rabenstein 7cf0955421 Handle long ReadMemStats duration in Go collector 
tl;dr: Return previous memstats if reading new ones takes longer than
1s.

See the doc comment of NewGoCollector for details.

Signed-off-by: beorn7 <bjoern@rabenste.in>
 2019-05-06 23:28:31 +02:00
beorn7 547c945a62 Replace fmt.Sprintf by simple concatenation 
In this simple case, it's the fastest and easiest.

Signed-off-by: beorn7 <bjoern@rabenste.in>
 2019-05-06 23:28:31 +02:00
beorn7 016273b1f9 Fix and tweak Go collector tests 
Signed-off-by: beorn7 <bjoern@rabenste.in>
 2019-05-06 23:28:31 +02:00
Björn Rabenstein f1d50bcc55
Merge pull request #559 from nghialt/master 
Add HTTPClient interface to Pusher struct
 2019-05-06 01:31:30 +02:00
NghiaLT 6ea6f07918 Replace HTTPClient with HTTPDoer; Update document accordingly 
Signed-off-by: NghiaLT <nghialt.11@gmail.com>
 2019-05-06 04:28:14 +07:00
Björn Rabenstein 906d2976cb
Merge pull request #567 from prometheus/beorn7/counter 
Make TestCounterAddLarge more robust
 2019-05-04 18:08:04 +02:00
Bjoern Rabenstein bf1f4e4a24 Make TestCounterAddLarge more robust 
The previous `float64(math.MaxUint64 + 1)` is too close to
`float64(math.MaxUint64)` to actually overflow as indended.

The counter code is actually converting forward and backward and
compare the original and twice-converted value. On most platform, this
will create a deviation and thus trigger the expected behavior. By
sheer "luck", one might end up with the same value and thus still use
the uint64 representation. Which is OK within the precision we can
expect. But it breaks the test. With this change, the next
representable floating point value greater than the floating point
value used to represent math.MaxUint64 is used.

Signed-off-by: Bjoern Rabenstein <bjoern@rabenste.in>
 2019-05-03 22:25:32 +02:00
Bjoern Rabenstein 57f7bd35fd Remove remaining traces of pre-go-1.8 handling 
Signed-off-by: Bjoern Rabenstein <bjoern@rabenste.in>
 2019-05-03 21:30:30 +02:00
KevinBetterQ a325fb7566 fix: fix a typo 
Signed-off-by: KevinBetterQ <1093850932@qq.com>
 2019-05-01 17:50:23 +08:00
Bjoern Rabenstein 1173d73405 Increase minimum required Go version to 1.9 
This allows us to simplify a bunch of code while still supporting the
last four Go minor versions.

We have also run into minor annoyances a couple of times by now to
keep supporting 1.7 and 1.8.

It's time to pull the plug!

Signed-off-by: Bjoern Rabenstein <bjoern@rabenste.in>
 2019-04-28 23:28:57 +02:00
NghiaLT c9d77912ac Add HTTPClient interface to Pusher struct 
Signed-off-by: NghiaLT <nghialt.11@gmail.com>
 2019-04-26 16:53:21 +07:00
Simon Pasquier 6894bb3c7c Add .golangci.yml 
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
 2019-04-25 10:38:07 +02:00
Simon Pasquier 15da21f1e4 *: replace golang.org/x/net/context by context 
The context package is available since Go 1.7 which is the minimal version
supported by client_golang.

Signed-off-by: Simon Pasquier <spasquie@redhat.com>
 2019-04-09 15:10:51 +02:00
Sergiusz Urbaniak 60728f445d prometheus/promhttp: actually observe values in trace in example 
This is similar to
https://github.com/prometheus/client_golang/pull/535 fixing ExampleInstrumentRoundTripperDuration.

Signed-off-by: Sergiusz Urbaniak <sergiusz.urbaniak@gmail.com>
 2019-03-06 13:59:53 +01:00
Frank Spitulski 10e34c668f fix(push): incorporate changes from review 
Signed-off-by: Frank Spitulski <fspituls@ucsd.edu>
 2019-02-24 15:15:35 -08:00
Frank Spitulski 7b127b3fe5 feat(push): add format builder option 
Allow users to specify which format the pusher should push in.

Signed-off-by: Frank Spitulski <fspituls@ucsd.edu>
 2019-02-24 12:51:45 -08:00
beorn7 4c99dd6630 Port histogram improvements into noObjectivesSummary 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2019-02-11 19:10:17 +01:00
beorn7 295f7e4861 Fix some comment and naming nits as leftover from #536 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2019-02-11 18:52:52 +01:00
Pascal S. de Kloe 19ff277483 Save memory on histograms: slightly faster with less code (#536) 
Use the highest bit for buffer switch tracking in histograms

Signed-off-by: Pascal S. de Kloe <pascal@quies.net>
 2019-02-11 18:29:02 +01:00
kklipsch a11607d7ae fix client trace examples to actually capture metrics 
Signed-off-by: kklipsch <kklipsch@example.com>
 2019-02-04 20:30:19 +00:00
beorn7 8785922956 Revert "Fix tests to adhere to the recent change in prometheus/common" 
This reverts commit 2c9811f88e.

This is necessary because the changes in prometheus/common got reverted.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2019-01-27 23:18:44 +01:00
Matt Layher da7d5640a2 prometheus: reword comment to avoid cursing 
Signed-off-by: Matt Layher <mdlayher@gmail.com>
 2019-01-16 17:03:06 -05:00
beorn7 b3d6096432 Improve testutil error messages 
This also satisfy newer staticcheck versions.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2019-01-06 00:22:03 +01:00
beorn7 91b385db44 Fix staticcheck errors in push_test.go 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2019-01-05 22:11:07 +01:00
Björn Rabenstein 2945395678
Merge pull request #525 from RomanKrasavtsev/patch-1 
fix typo
 2019-01-05 21:35:34 +01:00
Björn Rabenstein cf7da0f496
Merge pull request #521 from prometheus/beorn7/summary 
Lock-free summaries without objectives
 2019-01-05 21:23:43 +01:00
Roman Krasavtsev c51ed6941c fix typo 
Signed-off-by: Roman Krasavtsev <mr.krasavtsev@gmail.com>
 2019-01-04 21:14:10 +01:00
JoeWrightss fb3d5cb2ad Fix some spelling errors (#523) 
* Fix some spelling errors

Signed-off-by: JoeWrightss <zhoulin.xie@daocloud.io>
 2018-12-30 21:31:21 +01:00
gkze ee4e5e071e Fix typo again 
Signed-off-by: gkze <george.kontridze@gmail.com>
 2018-12-26 17:39:47 -08:00
beorn7 226b83ac2e Provide lock-free implementation for Summary without objectives 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-12-24 11:23:13 +01:00
beorn7 a006a7550a Remove unused constants and fields 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-12-24 11:22:57 +01:00
gkze 67bb2a7be3 Fix typo 
Signed-off-by: gkze <george.kontridze@gmail.com>
 2018-12-21 15:40:57 -08:00
beorn7 2c9811f88e Fix tests to adhere to the recent change in prometheus/common 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-12-18 17:20:25 +01:00
beorn7 000ceb266b Fix doc comment typo 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-12-18 16:30:34 +01:00
beorn7 619eb595ba Simplify an `append` to `copy` 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-12-06 11:37:34 +01:00
beorn7 fae889635c Fix #512 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-12-06 11:35:30 +01:00
beorn7 9542e4005c Expose #512 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-12-06 11:22:30 +01:00
beorn7 48d3ae798b Return observed duration from Timer.ObserveDuration 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-12-03 21:10:34 +01:00
beorn7 8d9c21f0cf Nitpicking a doc comment 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-11-20 13:41:38 +01:00
Björn Rabenstein f6443e74d4
Merge pull request #495 from SvenDowideit/add-extra-hints-to-clustermanager-example 
Add the last few lines needed to show a new user how the Collector/Gatherer fits together
 2018-11-20 13:35:42 +01:00
Dowideit, Sven (O&A, St. Lucia) 8324e65597 Add the last few lines needed to show a new user how the Collector/Gatherer fits together 
Signed-off-by: Dowideit, Sven (O&A, St. Lucia) <Sven.Dowideit@csiro.au>
 2018-11-20 15:46:27 +10:00
Peter Jausovec a199184c14 Update the label is not valid error message to include the fqName 
Fixes #504.

Signed-off-by: Peter Jausovec <peter.jausovec@oracle.com>
 2018-11-19 16:51:57 -08:00
beorn7 8c67c139e2 Remove accidental gogo/protobuf import 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-11-16 13:23:08 +01:00
beorn7 c4c1f3461e Fix tiny punctuation issue in doc comment 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-11-15 18:40:33 +01:00
PhilipGough f9739b3d97
Compare text strings directly in testutil 
Signed-off-by: PhilipGough <philip.p.gough@gmail.com>
 2018-11-15 16:03:57 +00:00
PhilipGough 30503fe98e
Exposes bug #498 - unexpected results for Histograms in testutil 
Signed-off-by: PhilipGough <philip.p.gough@gmail.com>
 2018-11-14 11:58:43 +00:00
beorn7 86702ea6b4 Fix metric comparison for empty labels 
reflect.DeepEqual is not suitable for zero occurrences of repeated
proto messages. This changes the comparison to act on the string
representation of proto messages.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-11-13 16:25:02 +01:00
beorn7 1db43792db Expose bug #494 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-11-13 15:48:48 +01:00
Björn Rabenstein da11cf2c83
Merge pull request #488 from peterj/master 
Add more info to the inconsistent cardinality errors
 2018-11-02 19:52:54 +01:00
Sevag Hanssian 88f4223778
Fix permissions of tempfile 
Signed-off-by: Sevag Hanssian <sevag.hanssian@gmail.com>
 2018-11-02 09:59:03 -07:00
Peter Jausovec f1bec54758 Update the ExampleRegister test 
Signed-off-by: Peter Jausovec <peter.jausovec@oracle.com>
 2018-11-02 09:46:03 -07:00
Sevag Hanssian 924d5919f3
Improve WriteToTextfile doc 
Signed-off-by: Sevag Hanssian <sevag.hanssian@gmail.com>
 2018-11-02 09:31:41 -07:00
Peter Jausovec b686a9e02e Remove fmt from import 
Signed-off-by: Peter Jausovec <peter.jausovec@oracle.com>
 2018-11-02 09:21:12 -07:00
Peter Jausovec ea348d7c20 Update code based on the PR feedback 
Signed-off-by: Peter Jausovec <peter.jausovec@oracle.com>
 2018-11-02 09:01:14 -07:00
Sevag Hanssian 42e6616334
Use code that already existed 
Signed-off-by: Sevag Hanssian <sevag.hanssian@gmail.com>
 2018-11-02 08:37:26 -07:00
Sevag Hanssian 1d54dabd43
Add WriteToTextfile test 
Signed-off-by: Sevag Hanssian <sevag.hanssian@gmail.com>
 2018-10-31 23:34:50 -07:00
Sevag Hanssian c5bdd15ac3
Remove typo 
Signed-off-by: Sevag Hanssian <sevag.hanssian@gmail.com>
 2018-10-31 15:31:42 -07:00
Sevag Hanssian e6fe89ce22
Add support for histograms and summaries 
Signed-off-by: Sevag Hanssian <sevag.hanssian@gmail.com>
 2018-10-31 15:27:11 -07:00
Sevag Hanssian 9416ff209b
First commit - WriteToTextfile 
Signed-off-by: Sevag Hanssian <sevag.hanssian@gmail.com>
 2018-10-31 14:22:11 -07:00
Peter Jausovec ceb819208d copy/pasta error 
Signed-off-by: Peter Jausovec <peter.jausovec@oracle.com>
 2018-10-31 11:16:16 -07:00
Peter Jausovec 4fe949f2fd Add missing fmt import 
Signed-off-by: Peter Jausovec <peter.jausovec@oracle.com>
 2018-10-31 11:09:12 -07:00
Peter Jausovec 902733d080 Add more info to the inconsistent cardinality errors 
Signed-off-by: Peter Jausovec <peter.jausovec@oracle.com>
 2018-10-31 11:01:42 -07:00
beorn7 fb0f7fe8c2 Pull up HTTP changes into deprecated functions 
So that also users of those can benefit. Obviously, we will end
updating deprecated functions one day (at latest once v0.10 is out).

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-10-22 12:36:33 +02:00
beorn7 62361fc0fb Use streaming encoding of metrics 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-10-22 01:04:52 +02:00
beorn7 752f50d366 Merge branch 'use-gzip-pool' of github.com:glefloch/client_golang into beorn7/http 2018-10-20 00:51:31 +02:00
glefloch c2c6fd2ab4 Fix PR comments 
Signed-off-by: glefloch <glfloch@gmail.com>
 2018-10-19 13:51:45 +02:00
glefloch fdf4cbc87b Use sync.Pool for gzipWriter 
Signed-off-by: glefloch <glfloch@gmail.com>
 2018-10-17 13:17:33 +02:00
beorn7 5e8ac3cd58 Add a concurrent end-to-end test for observe-register-gather 
This is an attempt to expose
https://github.com/istio/istio/issues/8906 .  The failure to do so
makes me believe the error is either already fixed in current
client_golang, or something weird I haven't spotted yet is happening
in the istio code.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-10-10 16:59:24 +02:00
beorn7 e1fb14a776 Adjust TestRegisterWithOrGet to the present 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-10-10 15:41:21 +02:00
beorn7 edb489a1ef Add check for duplicated label names 
Fixes #471

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-30 16:25:48 +02:00
beorn7 dd9e125455 Expose failure to detect duplicate label names 
This is #471.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-30 16:25:48 +02:00
beorn7 ff0177896a Be more precise about concurrency requirements 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-29 10:47:28 +02:00
beorn7 7eb5e8a08a Drain the desc channel after registering 
This avoids leaking goroutines.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-29 10:44:19 +02:00
David E Worth c2c648fdcb
fix exponential buckets failure message 
it appears there is a copy/paste error in the exponential buckets test failure message which is fixed here.

Signed-off-by: David Worth <dworth@strava.com>
 2018-09-25 17:42:06 -06:00
beorn7 7973e4709d Ensure 64bit alignment on 32bit platforms for histograms 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-24 13:28:13 +02:00
beorn7 3a6edf5ff8 Handle items newly deprecated in Go 1.11 
Remove where possible and ignore staticcheck warnings where we have
to.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-19 13:30:14 +02:00
beorn7 663a9ad019 Make Help strings optional 
This is in line with
https://prometheus.io/docs/instrumenting/writing_clientlibs/#metric-description-and-help

Since the zero value of a string in Go is `""`, we cannot distinguish
between a Help string not set and an empty Help string. Thus, we just
make it formally optional here with an encouragement to set it in the
doc comment.

In v0.10, the Help string will probably become a "normal" argument of
the constructor rather than a field in an Opts struct.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-17 12:07:31 +02:00
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
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
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
beorn7 6803bb4021 Add a DescribeByCollect helper 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-09-05 14:10:51 +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
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
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
Yutian Li 94f32c433e typo 
Signed-off-by: Yutian Li <hotpxless@gmail.com>
 2018-08-27 12:01:30 -04:00
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
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 cb71127117 Add missing license headers 
Signed-off-by: glefloch <glfloch@gmail.com>
 2018-08-22 13:53:56 +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
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
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
Björn Rabenstein bcbbc08eb2
Merge pull request #429 from prometheus/beorn7/summary 
Add more checks around summaries and histograms
 2018-07-13 22:10:52 +02:00
beorn7 4572e24546 Add suffix collision checks during gathering 
So far, if a gauge was named `xxx_count`, and a summary or histogram
`xxx`, this would have led to a legal protobuf exposition but would
have created a name collision on `xxx_count` in the text format and
within the Prometheus server.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-07-13 16:29:17 +02:00
Eric Daniels 2d0312e3dd
forgot some &s 
Signed-off-by: Eric Daniels <eric@erdaniels.com>
 2018-07-13 09:28:19 -04:00
beorn7 767a0218df Add more label checksn during gathering 
Including check for an invalid "quantile" label in summaries.

Also, improve error messages.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-07-13 14:14:39 +02:00
beorn7 e064aa97f1 Check quantile label during SummaryVec construction 
Also, document the existing behavior more clearly.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-07-13 13:43:21 +02:00
Eric Daniels c02aadb406
remove references to delegators 
Signed-off-by: Eric Daniels <eric@erdaniels.com>
 2018-07-12 17:56:44 -04:00
Eric Daniels b3076e068e
Make delegators wrapping responseWriterDelegator have value receivers 
Signed-off-by: Eric Daniels <eric@erdaniels.com>
 2018-07-12 11:37:51 -04:00
beorn7 ad1b9f7754 Introduce unchecked Collectors 
Fixes #47 . See there for more detailed discussion.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-07-09 14:33:18 +02:00
neeral fe6c0fa342 Do not sanitize prefix in Graphite bridge 
Refer to #418.

Signed-off-by: neeral <neeral@users.noreply.github.com>
 2018-06-22 13:00:54 -07:00
beorn7 f6b1978ed4 Use stricter wording for Gather returning a non-nil error 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-06-07 14:35:06 +02:00
beorn7 c06fb788be Relax consistency checks during gathering 
Also, clarify in the doc comment.

Previously, the assumption was that inconsistent label dimensions are
violating the exposition format spec. However, especially with the
knowledge that OpenMetrics will explicitly allow inconsistent label
dimensions in expositions, we should allow it in client_golang, too.

Note that registration with proper Descs provided will still check for
consistont label dimensions. However, you can "cheat" with custom
Collectors as you can collect metrics that don't follew the provided
Desc (this will be made more explicit and less cheaty once #47 is
fixed). You can also create expositions with inconsistent label
dimensions by merging Gatherers with the Gatherers slice type. (The
latter is used in the Pushgateway.)

Effectively, normal direct instrumentation will always have consistent
label dimensions in this way, but you can cover special use cases with
custom collectors or merging of different Gatherers.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-06-06 19:30:53 +02:00
beorn7 1b56b5c497 Be more robust about nil pointers in protobuf 
While not strictly correct, it can easily happen that proto messages
are created that use nil pointers instead of pointers in empty strings
to denote an empty string.

Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-05-29 17:57:33 +02:00
beorn7 d66ac8f863 Document the stop-the-world implications of the Go collector 
Signed-off-by: beorn7 <beorn@soundcloud.com>
 2018-05-19 21:14:04 +02:00
Karsten Weiss d7590aab3c Fix three shadow variable warnings (govet -shadow) 
Fixes:
http.go:118: declaration of "part" shadows declaration at http.go:117
http_test.go:50: declaration of "respBody" shadows declaration at http_test.go:25
promhttp/http.go:305: declaration of "part" shadows declaration at promhttp/http.go:304

Signed-off-by: Karsten Weiss <knweiss@gmail.com>
 2018-04-13 23:25:14 +02:00
Karsten Weiss f3a13af35c http.go: Move helper function nowSeries() to test case 
Fixes:
http.go:142:1⚠️ nowSeries is unused (deadcode)

Signed-off-by: Karsten Weiss <knweiss@gmail.com>
 2018-04-13 23:25:14 +02:00
Karsten Weiss 0a453dce84 Build process_collector_test.go only on Linux 
The test case requires the /proc filesystem. The change prevents this skip
message during "go test -v" on platforms other than Linux:

=== RUN   TestProcessCollector
--- SKIP: TestProcessCollector (0.00s)
	process_collector_test.go:15: skipping TestProcessCollector, procfs not available: could not read /proc: stat /proc: no such file or directory

Signed-off-by: Karsten Weiss <knweiss@gmail.com>
 2018-04-13 23:25:14 +02:00
Karsten Weiss 7a495a15b3 Type processCollector: Remove unused field 'pid' 
Fixes:
process_collector.go:19:2: field pid is unused (U1000)

Signed-off-by: Karsten Weiss <knweiss@gmail.com>
 2018-04-13 23:25:14 +02:00
Karsten Weiss ea0d27e8cf Type responseWriterDelegator: Remove unused fields 
Fixes:
http.go:355:2: field handler is unused (U1000)
http.go:355:11: field method is unused (U1000)

Signed-off-by: Karsten Weiss <knweiss@gmail.com>
 2018-04-13 23:25:14 +02:00
Karsten Weiss 958ea82988 Fix typos 
Signed-off-by: Karsten Weiss <knweiss@gmail.com>
 2018-04-13 23:23:52 +02:00
Karsten Weiss 245fde70cb Simplify if expr in ExampleNewExpvarCollector() 
Signed-off-by: Karsten Weiss <knweiss@gmail.com>
 2018-04-13 23:23:52 +02:00
Karsten Weiss 587d5265f8 metric.go: Remove unused type hashSorter 
Fixes:
metric.go:130:6: type hashSorter is unused (U1000)

Signed-off-by: Karsten Weiss <knweiss@gmail.com>
 2018-04-13 23:23:52 +02:00
Karsten Weiss e01f7ec4fb Remove unnecessary conversion 
Fixes:
go_collector.go:268:66⚠️ unnecessary conversion (unconvert)

Signed-off-by: Karsten Weiss <knweiss@gmail.com>
 2018-04-13 23:18:25 +02:00
Karsten Weiss 66b5a26cec Remove unnecessary for loop in makeLabelPairs() 
Fixes:
value.go:155:2: should replace loop with labelPairs = append(labelPairs, desc.constLabelPairs...) (S1011)

Signed-off-by: Karsten Weiss <knweiss@gmail.com>
 2018-04-13 23:18:20 +02:00
Karsten Weiss daa9993ded Use direct API calls 
Fixes:
prometheus/http_test.go:117:5⚠️ should use resp.Body.String() instead of string(resp.Body.Bytes()) (S1030) (megacheck)
prometheus/http_test.go:118:56⚠️ should use resp.Body.String() instead of string(resp.Body.Bytes()) (S1030) (megacheck)

Signed-off-by: Karsten Weiss <knweiss@gmail.com>
 2018-04-13 23:17:58 +02:00
Eric Boren ddd94f24c5 Fix unprotected write in metricMap 2018-04-09 10:10:15 -04:00
Luke Hanley f504d69aff promhttp: fix DNSDone should call Done, not Start (#395) 
When tracing, it appears DNSDone is instead calling the supplied DNSStart function
 2018-03-28 15:04:30 +02:00
beorn7 d7f8852e05 Fix TestHandler 
prometheus/common has changed and now adds the charset to the
Content-Type header.
 2018-03-19 14:04:12 +01:00
Adam Thomason 660e6909cc promauto: add NewCounterFunc and NewGaugeFunc 2018-03-17 14:01:36 -07:00
beorn7 b82bcfe55f Add a package promauto that provides auto-registering metrics 
Finally, I found an easy solution to provide the "evil"
auto-registration without getting death threats from the wardens of Go
purity. The reasoning can be found in the package's doc comment.
 2018-02-16 12:55:57 +01:00
Brian Brazil a331f1ea4a Add Godoc link at the top of the README 
For those following that link, make it more obvious
which subpackage they probably want.
 2018-02-15 11:45:41 +00:00
Björn Rabenstein 7e8a70d021
Merge pull request #381 from prometheus/beorn7/push 
Add completely new push syntax
 2018-02-14 19:20:02 +01:00
beorn7 361cb3a7d0 Delete another use of HostnameGrouping from a doc comment 2018-02-14 18:59:17 +01:00
beorn7 38de287a56 Remove obsolete copyright notices 2018-02-14 18:49:18 +01:00
beorn7 779cbe15b2 Remove HostnameGrouping method 2018-02-14 17:19:52 +01:00
beorn7 3c2baee2d1 Add completely new push syntax 
This allows adding more options in elegant ways, showcased here by
HTTP basic auth and by injecting a custom http.Client.

Fixes #341 and #372.
 2018-02-14 13:40:57 +01:00
Brian Brazil 02aee00fdb
Fix a typo 2018-02-14 11:10:46 +00:00