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Posted to mapreduce-issues@hadoop.apache.org by "Tsuyoshi OZAWA (JIRA)" <ji...@apache.org> on 2012/08/28 19:20:07 UTC

[jira] [Updated] (MAPREDUCE-4599) Ensure not to launch container on blacklisted nodes

     [ https://issues.apache.org/jira/browse/MAPREDUCE-4599?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tsuyoshi OZAWA updated MAPREDUCE-4599:
--------------------------------------

    Attachment: MAPREDUCE-4599.patch

Implemented AMNodeMap to maintain blacklists of bad nodes. The blacklists are updated when changing the states of AMNode objects.
                
> Ensure not to launch container on blacklisted nodes
> ---------------------------------------------------
>
>                 Key: MAPREDUCE-4599
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4599
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: applicationmaster
>    Affects Versions: MR-3902
>            Reporter: Tsuyoshi OZAWA
>            Assignee: Tsuyoshi OZAWA
>            Priority: Minor
>         Attachments: MAPREDUCE-4599.patch
>
>
> The current implementation of RMContainerAllocator doesn't ensure not to launch containers on blacklisted nodes. This may cause some skews by tasks on bad nodes.

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