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https://issues.apache.org/jira/browse/HADOOP-1518?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12507595
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Hudson commented on HADOOP-1518:
--------------------------------
Integrated in Hadoop-Nightly #133 (See
[http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Nightly/133/])
> Add session id to metric data
> -----------------------------
>
> Key: HADOOP-1518
> URL: https://issues.apache.org/jira/browse/HADOOP-1518
> Project: Hadoop
> Issue Type: Improvement
> Reporter: David Bowen
> Assignee: David Bowen
> Fix For: 0.14.0
>
> Attachments: 1518.patch, patch.txt
>
>
> In the context of Hadoop-On-Demand (HOD), we want to be able to aggregate
> metrics across the machines in the virtual cluster that corresponds to a HOD
> session. To enable this, we'd like to tag all the map/reduce related metrics
> with a session id. The session id would be a string created by HOD (it might
> be a Torque job id) and put into the hadoop-site.xml file for the virtual
> cluster.
> The default value for the session id would be the empty string, so that
> non-HOD usage of the metrics is not affected accept for the addition of a tag
> which is always the empty string.
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