You are viewing a plain text version of this content. The canonical link for it is here.
Posted to mapreduce-issues@hadoop.apache.org by "Dick King (JIRA)" <ji...@apache.org> on 2010/05/05 18:19:06 UTC
[jira] Commented: (MAPREDUCE-1354) Incremental enhancements to the
JobTracker for better scalability
[ https://issues.apache.org/jira/browse/MAPREDUCE-1354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12864387#action_12864387 ]
Dick King commented on MAPREDUCE-1354:
--------------------------------------
The [changes suggested above|https://issues.apache.org/jira/browse/MAPREDUCE-1354?focusedCommentId=12834139&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#action_12834139] seem good to me, but since the changes are orthogonal to the code of this JIRA I would rather make them a separate change.
> Incremental enhancements to the JobTracker for better scalability
> -----------------------------------------------------------------
>
> Key: MAPREDUCE-1354
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1354
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: jobtracker
> Reporter: Devaraj Das
> Assignee: Arun C Murthy
> Priority: Critical
> Attachments: mapreduce-1354--2010-03-10.patch, MAPREDUCE-1354_yhadoop20.patch, MAPREDUCE-1354_yhadoop20.patch, MAPREDUCE-1354_yhadoop20.patch, MAPREDUCE-1354_yhadoop20.patch, MAPREDUCE-1354_yhadoop20.patch, MAPREDUCE-1354_yhadoop20.patch, MAPREDUCE-1354_yhadoop20.patch, mr-1354-y20.patch
>
>
> It'd be nice to have the JobTracker object not be locked while accessing the HDFS for reading the jobconf file and while writing the jobinfo file in the submitJob method. We should see if we can avoid taking the lock altogether.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.