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https://issues.apache.org/jira/browse/MAPREDUCE-2738?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13107950#comment-13107950
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Robert Joseph Evans commented on MAPREDUCE-2738:
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I am working on a patch for this, and I am trying to use the JMX APIs to pull
out the metrics I need for this. I just want to check that JMX seems like the
right way to go on this. Also Some of the metrics, at least in single user
mode without security seem to be broken. Reserved memory GB always is going
negative I filed MAPREDUCE-3036 to look into this and I am going to put this
one on hold until I can get a fix for that one in.
> Missing cluster level stats on the RM UI
> ----------------------------------------
>
> Key: MAPREDUCE-2738
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2738
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 0.23.0
> Reporter: Ramya Sunil
> Assignee: Robert Joseph Evans
> Priority: Blocker
> Fix For: 0.23.0
>
>
> Cluster usage information such as the following are currently not available
> in the RM UI.
> - Total number of apps submitted so far
> - Total number of containers running/total memory usage
> - Total capacity of the cluster (in terms of memory)
> - Reserved memory
> - Total number of NMs - sorting based on Node IDs is an option but when there
> are lost NMs or restarted NMs, the node ids does not correspond to the actual
> value
> - Blacklisted NMs - sorting based on health-status and counting manually is
> not very straight forward
> - Excluded NMs
> - Handle to the jobhistory server
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