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From "Hong Tang (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (MAPREDUCE-1687) Stress submission policy does not always stress the cluster.
Date Wed, 28 Apr 2010 06:04:33 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1687?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hong Tang reassigned MAPREDUCE-1687:
------------------------------------

    Assignee: Hong Tang

> Stress submission policy does not always stress the cluster.
> ------------------------------------------------------------
>
>                 Key: MAPREDUCE-1687
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1687
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: contrib/gridmix
>            Reporter: Hong Tang
>            Assignee: Hong Tang
>         Attachments: mr-1687-yhadoop-20.1xx-20100416.patch, mr-1687-yhadoop-20.1xx-20100423-2.patch,
mr-1687-yhadoop-20.1xx-20100423.patch
>
>
> Currently, the rough idea of stress submission policy is to continue submitting jobs
until the pending map tasks reach 2x of the cluster capacity. This proves to be inadequate
and we saw a large job could monopolize the whole cluster.

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