Commit Graph

106 Commits

Author SHA1 Message Date
Robert Vollmert 1e201f4328 Reword, using "φ-quantile". 2015-08-03 14:10:20 +02:00
Robert Vollmert 5b1aa4ab69 More explicit documentation of SummaryOpts.Objectives. 2015-08-03 13:49:15 +02:00
beorn7 7abba842b0 Document the possibility to create "empty" metrics in a metric vector.
This fixes https://github.com/prometheus/client_golang/issues/119.
2015-07-15 13:13:56 +02:00
Julius Volz a03cc290e7 Merge pull request #139 from prometheus/fix-untyped-ref
Fix doc-comment reference to Untyped metric.
2015-06-13 12:22:23 +02:00
Julius Volz 209414d85f Mention histograms in doc.go. 2015-06-13 12:20:08 +02:00
Julius Volz b6525949dd Fix doc-comment reference to Untyped metric. 2015-06-13 02:16:27 +02:00
beorn7 59f2c7d8b0 Fix a number of minor things.
- Clarify documentation about sorting requirements.
- Add missing histogram support in consistency check.
- Add label sorting to consistency check.
- Improve error messages when reporting a metric.
  (Previously, the metric name was not printed.)
2015-06-09 12:03:07 +02:00
Tomasz Elendt dd4dd69878 Solve "The Proxy Problem" of InstrumentHandler
InstrumentHandler provides proxy object over given http.ResponseWriter
- responseWriterDelegator that only implements the bare minimum
required of an http.ResponseWriter and doesn’t implement any interface
upgrades (http.Flusher, http.Hijacker, etc.). This commit fixes it by
providing fancyResponseWriterDelegator with all the fancy bells and
whistles if standard library http.ResponseWriter is detected.

Heavily inspired by Goji's middleware.

https://avtok.com/2014/11/05/interface-upgrades.html#the-proxy-problem
2015-06-04 23:48:40 +02:00
Tomasz Elendt 288762e79c Change responseWriterDelegator.written to int64
Change responseWriterDelegator.written to int64 so that responses
bigger than 4GB could be properly observed on 32 bit systems.
2015-06-04 23:14:37 +02:00
beorn7 10eab41b48 Make LabelNameRE public. 2015-06-01 15:41:09 +02:00
Michael Stapelberg 23ef520369 doc fix: s/DefObjectives/DefBuckets/ 2015-05-30 17:30:45 +02:00
beorn7 944920c696 Ensure alignment of struct members used in sync.atomic functions. 2015-05-21 12:19:38 +02:00
Tobias Schmidt 765c1152ca Rename process_goroutines to go_goroutines
The decision was made to use the language name for language specific
metrics, so go_goroutines is the right names similar to
go_gc_duration_seconds.
2015-05-19 15:47:08 -04:00
Oliver 21b132f5a2 record quantiles as well 2015-05-05 12:33:35 -04:00
Oliver ff586eaac1 Add garbage collection stats 2015-05-05 09:52:36 -04:00
beorn7 c8a7ccf663 Improvements after review. 2015-05-04 13:13:06 +02:00
beorn7 70419a3485 Add examples for const summary/histogram. 2015-05-04 12:22:15 +02:00
Bjoern Rabenstein 9c4fec0bce Implement constSummary and constHistogram. 2015-05-04 00:32:15 +02:00
Julius Volz 066ab78410 Correct typo in Counter.Set() docstring. 2015-04-30 18:51:33 +02:00
beorn7 63acb006f7 Purge another trace of ext -> pbutil. 2015-04-07 15:19:47 +02:00
Julius Volz 7b2ff852ca Inline and remove processCollectSupported(). 2015-04-01 01:18:20 +02:00
Julius Volz 2b9d181f5b Merge process_collector{,procfs}.go files into one. 2015-03-31 18:24:46 +02:00
Julius Volz 21b7c6b048 Always build the procfs collector.
The cgo dependency in the "procfs" package is being removed in:

  https://github.com/prometheus/procfs/pull/4

So now it should be fine to always import the "procfs" package and have
it determine dynamically at runtime whether the proc filesystem is
actually there.

This fixes a problem for users which were vendoring client_golang on
MacOS X, but building the result on Linux (the procfs package was
missing in the vendored packages).
2015-03-31 18:07:40 +02:00
beorn7 4ab527fc50 Fix merge conflicts. 2015-03-16 15:15:02 +01:00
beorn7 f3cda15667 Add functions to push individual collectors to a Pushgateway.
Move all Pushgateway related top-level functions to push.go.
2015-03-15 19:29:57 +01:00
beorn7 a762e0612e Allow the metric family injection hook to merge with existing metric families.
If a metric family returned by the injection hook already exists (with
the same name), then its metrics are simply merged into that metric
family. With enabled collect-time checks, even uniqueness is checked,
but in general, things stay the same that the caller is responsible to
ensure metric consistency.

This fixes https://github.com/prometheus/pushgateway/issues/27 .
2015-03-15 16:34:31 +01:00
beorn7 715be73ac9 Return NaN when summaries have no observations yet.
Also, properly handle decay upon Write().

This fixes https://github.com/prometheus/client_golang/issues/85 .
2015-03-15 16:33:56 +01:00
Julius Volz 738b69e61a Use non-rewritten Godep imports. 2015-02-27 16:49:40 +01:00
Julius Volz 169c8a68e1 Use godep with import rewriting for vendoring.
The new vendoring was produced by running:

    godep save -r ./examples/... ./prometheus/... ./text/... ./model/... ./extraction/...

Two things to note:

- "extraction/processor0_0_{1,2}_test.go" imported a package from
  "github.com/prometheus/prometheus", all for just one tiny testing
  function. To not have to deal with a circular vendoring dependency, I
  simply replaced the usage of the function by some in-line logic.

- godep grouped the rewritten imports slightly differently for some
  reason, but at least the standard library imports are still in a
  separate section. Not sure if it's worth manually keeping our old
  import grouping scheme or if we should simply use that godep-generated
  one.
2015-02-26 00:47:03 +01:00
Peter Bourgon 69c8dc87e9 Fix for Histogram in registry.writePB 2015-02-20 19:08:36 +01:00
beorn7 79efd06178 Use binary search to pick bucket.
With the usual number of buckets, this doesn't really make a
difference, but it should scale... See the added TODO for the precise
numbers.
2015-02-20 15:53:53 +01:00
beorn7 9eaf3705d2 Avoid "online serving system". 2015-02-19 16:03:24 +01:00
beorn7 000ef45157 Replaced http by HTTP if used as the name of the protocol in English. 2015-02-19 15:54:26 +01:00
beorn7 b1e7299877 Turned "le" and "quantile" label names into constants. 2015-02-19 15:54:26 +01:00
beorn7 3e50eddd64 Do not count the +Inf bucket for bucket creation.
Add explanation for DefBuckets.
2015-02-19 15:54:26 +01:00
beorn7 4c4f51d546 Catch illegal label names for summaries in histograms. 2015-02-19 15:54:26 +01:00
beorn7 6958242277 Add support for histograms to the Go client library. 2015-02-19 15:54:26 +01:00
beorn7 a7c56882af Mark slow test as such and exclude them from travis. 2015-02-19 15:51:11 +01:00
Julius Volz 765fdaf37e Update protobuf library package name.
The Golang protocol buffer library has now moved to GitHub:

https://github.com/golang/protobuf

Although "go get"-ing the old package name still works, moving
everything to the new one will make vendoring cleaner.

See also https://github.com/matttproud/golang_protobuf_extensions/pull/7
2015-02-14 00:00:34 +01:00
Deyuan Deng 550b950411 Fix document 2015-02-11 17:35:04 -05:00
Tobias Schmidt 98061eecab Add todo comment to bring back error reporting 2015-02-11 14:58:35 -05:00
Tobias Schmidt 7faf9e76ef Handle process collector errors gracefully
As it is expected that the process collector can fail under certain
conditions (proc information for a process only readable by root or
other user for example) and as there is currently no option to configure
the error behavior of the client, this change reverts the error
reporting introduced in 159e96f. This effectively means that errors are
simply ignored and there won't be any samples for the process_* metrics
in case of an error.

Once a user can control how to behave in case of errors returned by
collectors, this change should probably be reverted.
2015-02-10 16:19:27 -05:00
Johannes 'fish' Ziemke 93d11c8e35 Remove procfs dependency unless cgo is enabled 2015-02-09 16:38:04 +01:00
Tobias Schmidt d1d9dee31b Remove dependency on procfs/cgo in non-procfs systems
The procfs package has a cgo dependency (necessary to calculate system
times). As procfs is not available under windows, darwin and supposely
all newer BSD systems, this change remove the procfs dependency on these
systems.
2015-02-02 15:40:04 -05:00
Tobias Schmidt 3cb16a9503 Use clear error interface for process pidFn
If a given pidFn for a process collector can't determine the pid, this
had to be signaled with an invalid pid so far (pid <= 0). In order to
make the error interface clearer for users, this change introduces an
explicit error parameter.
2015-02-02 14:59:24 -05:00
beorn7 4f73a8b017 Improve Gauge and Counter performance.
This is accomplished by using the functions from the atomic packages
instead of a mutex.

benchmark                                      old ns/op     new ns/op     delta
BenchmarkGaugeNoLabels-2                       118           9.40          -92.03%
BenchmarkGaugeNoLabels                         117           9.38          -91.98%
BenchmarkGaugeNoLabels-4                       117           9.40          -91.97%
BenchmarkCounterNoLabels-2                     137           16.8          -87.74%
BenchmarkCounterNoLabels                       136           16.8          -87.65%
BenchmarkCounterNoLabels-4                     136           16.8          -87.65%
BenchmarkGaugeWithLabelValues-4                400           279           -30.25%
BenchmarkGaugeWithLabelValues-2                398           279           -29.90%
BenchmarkGaugeWithLabelValues                  400           283           -29.25%
BenchmarkCounterWithLabelValues-4              397           286           -27.96%
BenchmarkCounterWithLabelValues-2              396           286           -27.78%
BenchmarkCounterWithLabelValues                394           285           -27.66%
BenchmarkCounterWithPreparedMappedLabels       587           454           -22.66%
BenchmarkCounterWithPreparedMappedLabels-2     581           456           -21.51%
BenchmarkCounterWithPreparedMappedLabels-4     654           539           -17.58%
BenchmarkCounterWithMappedLabels-2             1441          1218          -15.48%
BenchmarkCounterWithMappedLabels               1099          963           -12.37%
BenchmarkCounterWithMappedLabels-4             1636          1501          -8.25%
2015-02-02 18:11:11 +01:00
Bjoern Rabenstein d7f8eb1083 Change "Prometheus Team" to "The Prometheus Authors". 2015-02-02 15:14:36 +01:00
Julius Volz f3e101bd1c Fix race condition in writePB().
The RLock already needs to be acquired when reading r.dimHashesByName.

This fixes https://github.com/prometheus/client_golang/issues/61
2015-01-31 22:10:27 +01:00
Bjoern Rabenstein 3798bbca12 Add const labels to counter. 2015-01-28 15:47:48 +01:00
juliusv 3713bd7d97 Merge pull request #48 from prometheus/beorn7/fix-summary-dimensions
Beorn7/fix summary dimensions
2015-01-22 17:03:39 +01:00