[
https://issues.apache.org/jira/browse/HADOOP-5223?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12672716#action_12672716
]
Owen O'Malley commented on HADOOP-5223:
---------------------------------------
We also plan to incorporate HADOOP-1338 into this patch, where the fetchers
will request a list of map outputs and the map outputs look like:
<vint id length> <task id>
<vint compressed size>
<vint raw size>
<map data>
... repeated for each map.
> Refactor reduce shuffle code
> ----------------------------
>
> Key: HADOOP-5223
> URL: https://issues.apache.org/jira/browse/HADOOP-5223
> Project: Hadoop Core
> Issue Type: Improvement
> Components: mapred
> Reporter: Owen O'Malley
> Assignee: Owen O'Malley
> Fix For: 0.21.0
>
>
> The reduce shuffle code has become very complex and entangled. I think we
> should move it out of ReduceTask and into a separate package
> (org.apache.hadoop.mapred.task.reduce). Details to follow.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
