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Posted to mapreduce-issues@hadoop.apache.org by "Allen Wittenauer (JIRA)" <ji...@apache.org> on 2012/05/01 03:12:49 UTC

[jira] [Updated] (MAPREDUCE-4085) Kill task attempts longer than a configured queue max time

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

Allen Wittenauer updated MAPREDUCE-4085:
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    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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