hadoop-mapreduce-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-279) Map-Reduce 2.0
Date Fri, 04 Mar 2011 15:57:37 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13002679#comment-13002679
] 

Arun C Murthy commented on MAPREDUCE-279:
-----------------------------------------

bq. How shuffle works in MapReduce 2.0 ?

Meng - pretty much the same as currently, the map-outputs are served over http.

We have discussed improvements to shuffle along the lines you have suggested for a long while
now (I just don't have the jiras handy) and I agree, they are excellent ideas.

Our hope is that with MRv2 we open up Map-Reduce to significant innovation so that folks can
try various ideas like the ones you suggested... make sense?

> Map-Reduce 2.0
> --------------
>
>                 Key: MAPREDUCE-279
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-279
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: jobtracker, tasktracker
>            Reporter: Arun C Murthy
>            Assignee: Arun C Murthy
>             Fix For: 0.23.0
>
>
> Re-factor MapReduce into a generic resource scheduler and a per-job, user-defined component
that manages the application execution. 

-- 
This message is automatically generated by JIRA.
-
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message