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Posted to issues@tez.apache.org by "Bikas Saha (JIRA)" <ji...@apache.org> on 2013/11/07 03:57:17 UTC

[jira] [Comment Edited] (TEZ-602) TaskScheduler preemption broken after container reuse

    [ https://issues.apache.org/jira/browse/TEZ-602?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13815588#comment-13815588 ] 

Bikas Saha edited comment on TEZ-602 at 11/7/13 2:56 AM:
---------------------------------------------------------

Patch adds the minimal fix. Adds test. The issue was that priorities of assigned containers dont have any relation to the tasks that are running in them and so cannot be compared for preemption calculations. Also has a fix for not preempting containers of the same vertex. The task scheduler code probably needs a significant refactor so that related entities are available together.


was (Author: bikassaha):
Patch adds the minimal fix. Adds test. The issue was that priorities of assigned containers dont have any relation to the tasks that are running in them and so cannot be compared for preemption calculations. Also has a fix for not preempting containers of the same vertex. This code probably needs a significant refactor so that related entities are available together.

> TaskScheduler preemption broken after container reuse
> -----------------------------------------------------
>
>                 Key: TEZ-602
>                 URL: https://issues.apache.org/jira/browse/TEZ-602
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Bikas Saha
>            Assignee: Bikas Saha
>         Attachments: TEZ-602.1.patch
>
>




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