statsd documentation
A basic page explaining how to have Zuul send metrics to statsd and the metrics being exposed. Change-Id: I3e767989a7bc46a1ed9083ecab60bfeeadcb6439changes/85/49885/3
parent
d7e8f3ac26
commit
a8eea7d354
|
@ -23,6 +23,7 @@ Contents:
|
|||
launchers
|
||||
reporters
|
||||
zuul
|
||||
statsd
|
||||
|
||||
Indices and tables
|
||||
==================
|
||||
|
|
|
@ -0,0 +1,89 @@
|
|||
:title: Statsd reporting
|
||||
|
||||
Statsd reporting
|
||||
================
|
||||
|
||||
Zuul comes with support for the statsd protocol, when enabled and configured
|
||||
(see below), the Zuul scheduler will emit raw metrics to a Statsd receiver
|
||||
which let you in turn generate nice graphics. An example is OpenStack Zuul
|
||||
status page: http://status.openstack.org/zuul/
|
||||
|
||||
Configuration
|
||||
-------------
|
||||
|
||||
Statsd support uses the statsd python module. Note that Zuul will start without
|
||||
the statsd python module, so an existing Zuul installation may be missing it.
|
||||
|
||||
The configuration is done via environnement variables STATSD_HOST and
|
||||
STATSD_PORT. They are interpreted by the statsd module directly and there is no
|
||||
such paremeter in zuul.conf yet. Your init script will have to initialize both
|
||||
of them before launching Zuul.
|
||||
|
||||
Your init script most probably loads a configuration file named
|
||||
``/etc/default/zuul`` which would contain the environment variables::
|
||||
|
||||
$ cat /etc/default/zuul
|
||||
STATSD_HOST=10.0.0.1
|
||||
STATSD_PORT=8125
|
||||
|
||||
Metrics
|
||||
-------
|
||||
|
||||
The metrics are emitted by the Zuul scheduler (`zuul/scheduler.py`):
|
||||
|
||||
**gerrit.events.<type> (counters)**
|
||||
Gerrit emits different kind of message over its `stream-events` interface. As
|
||||
a convenience, Zuul emits metrics to statsd which save you from having to use
|
||||
a different daemon to measure Gerrit events.
|
||||
The Gerrit events have different types defined by Gerrit itself, Zuul will
|
||||
relay any type of event reusing the name defined by Gerrit. Some of the
|
||||
events emitted are:
|
||||
|
||||
* patchset-created
|
||||
* draft-published
|
||||
* change-abandonned
|
||||
* change-restored
|
||||
* change-merged
|
||||
* merge-failed
|
||||
* comment-added
|
||||
* ref-updated
|
||||
* reviewer-added
|
||||
|
||||
Refer to your Gerrit installation documentation for an exhaustive list of
|
||||
Gerrit event types.
|
||||
|
||||
**zuul.pipeline.**
|
||||
Holds metrics specific to jobs. The hierarchy is:
|
||||
|
||||
#. **<pipeline name>** as defined in your `layout.yaml` file (ex: `gate`,
|
||||
`test`, `publish`). It contains:
|
||||
|
||||
#. **all_jobs** counter of jobs triggered by the pipeline.
|
||||
#. **current_changes** A gauge for the number of Gerrit changes being
|
||||
processed by this pipeline.
|
||||
#. **job** subtree detailing per jobs statistics:
|
||||
|
||||
#. **<jobname>** The triggered job name.
|
||||
#. **<build result>** Result as defined in your triggering system. For
|
||||
Jenkins that would be SUCCESS, FAILURE, UNSTABLE, LOST. The
|
||||
metrics holds both an increasing counter and a timing reporting
|
||||
the duration of the build. Whenever the result is a SUCCESS or
|
||||
FAILURE, Zuul will additionally report the duration of the
|
||||
build as a timing event.
|
||||
|
||||
#. **resident_time** timing representing how long the Change has been
|
||||
known by Zuul (which includes build time and Zuul overhead).
|
||||
#. **total_changes** counter of the number of change proceeding since
|
||||
Zuul started.
|
||||
|
||||
Additionally, the `zuul.pipeline.<pipeline name>` hierarchy contains
|
||||
`current_changes` and `resident_time` metrics for each projects. The slash
|
||||
separator used in Gerrit name being replaced by dots.
|
||||
|
||||
As an example, given a job named `myjob` triggered by the `gate` pipeline
|
||||
which took 40 seconds to build, the Zuul scheduler will emit the following
|
||||
statsd events:
|
||||
|
||||
* `zuul.pipeline.gate.job.myjob.SUCCESS` +1
|
||||
* `zuul.pipeline.gate.job.myjob` 40 seconds
|
||||
* `zuul.pipeline.gate.all_jobs` +1
|
Loading…
Reference in New Issue