Oleksandr Diachenko created AMBARI-3347:
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Summary: 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 rrd should include a set of regular expressions.
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