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https://issues.apache.org/jira/browse/AMBARI-3347?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Oleksandr Diachenko resolved AMBARI-3347.
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Resolution: Fixed
Commited to trunk and to branch-1.4.1.
> Performance issue requesting metrics when dynamic metric name specified.
> ------------------------------------------------------------------------
>
> Key: AMBARI-3347
> URL: https://issues.apache.org/jira/browse/AMBARI-3347
> Project: Ambari
> Issue Type: Task
> Components: controller
> Affects Versions: 1.4.1
> Reporter: Oleksandr Diachenko
> Assignee: Oleksandr Diachenko
> Fix For: 1.4.1
>
> Attachments: AMBARI-3347.patch
>
>
> When requesting metrics like ...
> {code}
> metrics/yarn/Queue/root/default/AvailableMB
> {code}
> ... a request is generated to pull the metrics from the rrd files produced by
> Ganglia. Currently the above request will result in the
> GangliaPropertyProvider making the following request to rrd.py for the
> metrics ...
> {code}
> /cgi-bin/rrd.py?c=HDPResourceManager&h=hostname
> {code}
> Note that this request does not ask for a specific metric like ...
> {code}
> m=yarn.QueueMetrics.Queue=root.default.AvailableMB
> {code}
> ... which means that *all* of the metrics are returned. This is obviously
> not ideal.
> Request to rrd should include a set of regular expressions.
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