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From "Bryan Pendleton (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-27) MapRed tries to allocate tasks to nodes that have no available disk space
Date Wed, 08 Feb 2006 19:03:58 GMT
    [ 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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