[jira] Updated: (HADOOP-4435) The JobTracker should display the amount of heap memory used

["Robert Chansler (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-4435?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Chansler updated HADOOP-4435:
------------------------------------

    Release Note: 
Changed JobTracker web status page to display the amount of heap memory in use. This changes the JobSubmissionProtocol.


  was:
The JobTracker WebUI displays the amount of heap memory in use. This changes the JobSubmissionProtocol.


    Hadoop Flags: [Incompatible change, Reviewed]  (was: [Reviewed, Incompatible change])

Edit release note for publication.

> 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, clusterSummary.patch, clusterSummary2.patch, clusterSummary3.patch, clusterSummary4.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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