[
https://issues.apache.org/jira/browse/HADOOP-4396?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12639542#action_12639542
]
Raghu Angadi commented on HADOOP-4396:
--------------------------------------
> I was looking at patch for HADOOP-3511 ...
I meant to say HADOOP-3514.
> However, It is not very clear how this change is affecting the data node
> performance?
What is the change in performance you are observing on data nodes compared to
datanodes on 0.18? It was not clear from the comment.
> sort on 400 nodes is now slower than in 18
> ------------------------------------------
>
> Key: HADOOP-4396
> URL: https://issues.apache.org/jira/browse/HADOOP-4396
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.19.0
> Reporter: Jothi Padmanabhan
> Assignee: Jothi Padmanabhan
> Priority: Blocker
> Fix For: 0.19.0
>
>
> Sort on 400 nodes on hadoop release 18 takes about 29 minutes, but with the
> 19 branch takes about 32 minutes. This behavior is consistent.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
