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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1048) Show total slot usage in cluster summary on jobtracker webui
Date Thu, 22 Oct 2009 15:36:59 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1048?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12768719#action_12768719
] 

Hemanth Yamijala commented on MAPREDUCE-1048:
---------------------------------------------

Another issue is about the jobtracker.jspx which now is (almost) a copy of jobtracker.jsp.
It seems a little odd that we must update the pages independently to keep them in sync. Also,
since jobtracker.jspx returns data in an XML format, I am not sure if it is intended to be
used as an interface. In that case, things could break if changes are made to it. I am thinking
we should update the jobtracker.jspx in a separate JIRA after confirming that users who are
using it actually are OK with the change. Also in that JIRA we could figure ways of avoiding
having to make changes to both jsp pages by sharing code.

> Show total slot usage in cluster summary on jobtracker webui
> ------------------------------------------------------------
>
>                 Key: MAPREDUCE-1048
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1048
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: jobtracker
>    Affects Versions: 0.20.1
>            Reporter: Amar Kamat
>            Assignee: Amareshwari Sriramadasu
>             Fix For: 0.22.0
>
>         Attachments: mapred-1048-v1.0.patch, mapred-1048-v1.1.patch, patch-1048-0.20.txt,
patch-1048-1.txt, patch-1048-2.txt, patch-1048-3.txt, patch-1048-4.txt, patch-1048-5.txt,
patch-1048-6.txt, patch-1048-ydist.txt, patch-1048.txt
>
>
> With High-Ram jobs coming into the picture, its important to also show the slot usage
in cluster summary since total-running-maps < total-slots-occupied. 

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