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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-2917) Corner case in container reservations
Date Wed, 31 Aug 2011 06:49:10 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2917?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arun C Murthy updated MAPREDUCE-2917:
-------------------------------------

    Attachment: MAPREDUCE-2917.patch

Patch to allow apps to make extra reservations slowly, over time. Thus the application gets
other containers and frees up the original reservation - thus solving the deadlock.

> Corner case in container reservations
> -------------------------------------
>
>                 Key: MAPREDUCE-2917
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2917
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2, resourcemanager
>    Affects Versions: 0.23.0
>            Reporter: Arun C Murthy
>            Assignee: Arun C Murthy
>             Fix For: 0.23.0
>
>         Attachments: MAPREDUCE-2917.patch
>
>
> Saw a corner case in container reservations where the node on which the AM is running
was reserved, and hence never fulfilled leaving the application hanging.

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