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<p>Hello guys,</p>
<p>After investigate to find an architecture to have the following
metrics on SF, we have 3 solutions:</p>
<p>What we need:</p>
<p><insert-markdown content="story.description"
ng-show="!editingDescription" class="ng-isolate-scope">
<div>
<p>The goal of this story is to collect and represent system
metrics:</p>
<ul>
<li>cpu</li>
<li>memory</li>
<li>disk space</li>
<li>disk io</li>
<li>network io</li>
</ul>
<p>Then services metrics needs to also be enabled:</p>
<ul>
<li>zuul</li>
<li>nodepool</li>
</ul>
</div>
</insert-markdown></p>
<p>3 solutions:<br>
</p>
<p>1)<br>
- collectd for system metrics<br>
- statsd to collect zuul/nodepool<br>
- graphite/carbon/whisper for time series<br>
- grafana for dashboard</p>
<p>pro:<br>
- all tools packaged in epel<br>
- a lot of documentation available<br>
- reference arch for osp [1]<br>
- native integration with grafana<br>
- big community<br>
con:<br>
- old tools (2006 for graphite)<br>
- seems to have performance issues with whisper<br>
- native integration with grafana</p>
<p>2)<br>
- collectd for system metrics<br>
- telegraf to collect zuul/nodepool statsd metrics for influxdb<br>
- influxdb for time series<br>
- grafana for dashboard</p>
<p>pro:<br>
- a lot of documentation available<br>
- influxdb have very good performances<br>
- the new ref arch for metrics<br>
- native integration with grafana<br>
- big community<br>
con:<br>
- influx db is not packaged in epel, but repo are available</p>
<p>3)</p>
<p>- collectd for system metrics<br>
- gnocchi-statsd to collect zuul/nodepool metrics<br>
- collectd-gnocchi to collect collectd metrics<br>
- gnocchi for time series<br>
- grafana for dashboard with grafana-plugins-gnocchi</p>
<p>pro:<br>
- dvp by redhat folks<br>
- Julien could help us for the integration<br>
- packages are available for gnocchi ocata on:<br>
<a class="moz-txt-link-freetext" href="http://buildlogs.centos.org/centos/7/cloud/x86_64/rdo-trunk-master-tested/delorean.repo">http://buildlogs.centos.org/centos/7/cloud/x86_64/rdo-trunk-master-tested/delorean.repo</a><br>
<a class="moz-txt-link-freetext" href="https://trunk.rdoproject.org/centos7-master/delorean-deps.repo">https://trunk.rdoproject.org/centos7-master/delorean-deps.repo</a><br>
- openstack project</p>
<p> - we already use gnocchi and statsd gnocchi on SF<br>
</p>
<p>con:<br>
- collectd-gnocchi is not available yet (and need to use
gnocchi 3.1 aka master)<br>
- we have to use master branch (ocata), it will be release on
january/febuary<br>
- poor community compare to graphite/influxdb<br>
- poor documentation</p>
<p><br>
</p>
<p>So now, we have to decide which solution we will use in SF =)<br>
</p>
<p>Regards</p>
<p>Nico</p>
<p><br>
</p>
<p>[1] <a class="external"
href="https://access.redhat.com/documentation/en/red-hat-openstack-platform/9/paged/red-hat-openstack-platform-operational-tools/chapter-4-installing-the-performance-monitoring-suite">https://access.redhat.com/documentation/en/red-hat-openstack-platform/9/paged/red-hat-openstack-platform-operational-tools/chapter-4-installing-the-performance-monitoring-suite</a><br>
</p>
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