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https://issues.apache.org/jira/browse/HADOOP-4435?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Owen O'Malley updated HADOOP-4435:
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    Status: Open  (was: Patch Available)

You need to change the client protocol version.

> The JobTracker should display the amount of heap memory used
> ------------------------------------------------------------
>
>                 Key: HADOOP-4435
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4435
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: mapred
>            Reporter: dhruba borthakur
>            Assignee: dhruba borthakur
>            Priority: Minor
>             Fix For: 0.20.0
>
>         Attachments: clusterSummary.patch
>
>
> It would be nice to make the JobTracker UI display the amount of heap memory 
> currently in use. This is similar to the DFS UI that already displays the 
> amount if heap memory used by the NameNode.

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