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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-4085) Kill task attempts longer than a configured queue max time
Date Tue, 01 May 2012 01:12:49 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-4085?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Allen Wittenauer updated MAPREDUCE-4085:

    Attachment: MAPREDUCE-4085-branch-1.0.txt

Here's a code dump of what I'm currently working with on my test setup.  I have a slightly
different version running in front of users that is working well, but lacks the RPC support
this one provides.  Many thanks to those of you who have given some guidance on this...
> Kill task attempts longer than a configured queue max time
> ----------------------------------------------------------
>                 Key: MAPREDUCE-4085
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4085
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>          Components: task
>            Reporter: Allen Wittenauer
>         Attachments: MAPREDUCE-4085-branch-1.0.txt
> For some environments, it is desirable to have certain queues have an SLA with regards
to task turnover.  (i.e., a slot will be free in X minutes and scheduled to the appropriate
job)  Queues should have a 'task time limit' that would cause task attempts over this time
to be killed. This leaves open the possibility that if the task was on a bad node, it could
still be rescheduled up to max.task.attempt times.

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