hadoop-mapreduce-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-270) TaskTracker could send an out-of-band heartbeat when the last running map/reduce completes
Date Mon, 28 Sep 2009 21:59:16 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12760407#action_12760407
] 

Hudson commented on MAPREDUCE-270:
----------------------------------

Integrated in Hadoop-Mapreduce-trunk-Commit #69 (See [http://hudson.zones.apache.org/hudson/job/Hadoop-Mapreduce-trunk-Commit/69/])
    . Fix the tasktracker to optionally send an out-of-band heartbeat on task-completion for
better job-latency. 
Configuration changes:
  add mapreduce.tasktracker.outofband.heartbeat


> TaskTracker could send an out-of-band heartbeat when the last running map/reduce completes
> ------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-270
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-270
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>    Affects Versions: 0.21.0
>            Reporter: Arun C Murthy
>            Assignee: Arun C Murthy
>             Fix For: 0.22.0
>
>         Attachments: MAPREDUCE-270.patch, MAPREDUCE-270.patch, MAPREDUCE-270.patch, MAPREDUCE-270.patch,
MAPREDUCE-270.patch, MAPREDUCE-270_yhadoop20.patch, MAPREDUCE-270_yhadoop20.patch, MAPREDUCE-270_yhadoop20.patch,
MAPREDUCE-270_yhadoop20.patch, MAPREDUCE-270_yhadoop20.patch
>
>
> Currently the TaskTracker strictly respects the heartbeat interval, this causes utilization
issues when all running tasks complete. We could send an out-of-band heartbeat in that case.

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


Mime
View raw message