hadoop-mapreduce-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-2210) Preemption does not obey job priority
Date Mon, 06 Dec 2010 18:31:11 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2210?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Allen Wittenauer updated MAPREDUCE-2210:

    Component/s:     (was: jobtracker)

> Preemption does not obey job priority
> -------------------------------------
>                 Key: MAPREDUCE-2210
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2210
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: contrib/fair-share
>            Reporter: Adam Kramer
> Preemption, as it currently works, kills running tasks that are "unfair" in terms of
the amount of task attention used by one job compared to another.
> The bug is that pre-emption occurs such that HIGH priority jobs have their tasks killed
when the cluster is filled with lower-priority jobs. Pre-emption should only be allowed to
kill tasks for jobs with equal or lower priority.

This message is automatically generated by JIRA.
You can reply to this email to add a comment to the issue online.

View raw message