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From "Hong Tang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-1317) Reducing memory consumption of rumen objects
Date Fri, 18 Dec 2009 11:40:18 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1317?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hong Tang updated MAPREDUCE-1317:
---------------------------------

    Attachment: mapreduce-1317-20091218.patch

Straight forward patch. No additional test is added because it does not change the semantics
of the modified classes, and existing unit tests should provide enough coverage.

> Reducing memory consumption of rumen objects
> --------------------------------------------
>
>                 Key: MAPREDUCE-1317
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1317
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>            Reporter: Hong Tang
>         Attachments: mapreduce-1317-20091218.patch
>
>
> We have encountered OutOfMemoryErrors in mumak and gridmix when dealing with very large
jobs. The purpose of this jira is to optimze memory consumption of rumen produced job objects.

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