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Posted to common-dev@hadoop.apache.org by "Bryan Pendleton (JIRA)" <ji...@apache.org> on 2006/02/08 20:03:58 UTC

[jira] Commented: (HADOOP-27) MapRed tries to allocate tasks to nodes that have no available disk space

    [ http://issues.apache.org/jira/browse/HADOOP-27?page=comments#action_12365610 ] 

Bryan Pendleton commented on HADOOP-27:
---------------------------------------

Just to add specifics: since a task processor might've already completed previous tasks - when it runs out of space, it shouldn't be allocated new jobs, but it should stay available for serving map output to reduce jobs that need the completed output. Likewise, once such tasks have been cleared, and more space is available, the task runner should return to available status automatically.

> MapRed tries to allocate tasks to nodes that have no available disk space
> -------------------------------------------------------------------------
>
>          Key: HADOOP-27
>          URL: http://issues.apache.org/jira/browse/HADOOP-27
>      Project: Hadoop
>         Type: Bug
>   Components: mapred
>     Reporter: Mike Cafarella

>
>   What it says above.  MapRed TaskTrackers should not offer task service if the local disk
> space is too constrained.

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