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From "Amar Kamat (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4435) The JobTracker should display the amount of heap memory used
Date Thu, 23 Oct 2008 11:38:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4435?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12642141#action_12642141
] 

Amar Kamat commented on HADOOP-4435:
------------------------------------

2 comments :
1) What if we display heap-details as part of _cluster-summary_.  Something like
{noformat}
State:
Started:
Version:
Heap Information:
{noformat}
Can we show it as a percentage bar? Now {{generateSummaryTable()}} remains same and its a
one line change in {{jobtracker.jsp}}
2) Will it be a big change to pull out {{FsShell.byteDesc()}} into {{util}}?


> 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
>
>
> 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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