[
https://issues.apache.org/jira/browse/HADOOP-4749?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12655946#action_12655946
]
he yongqiang commented on HADOOP-4749:
--------------------------------------
hi, Arun
Thank you.
Best regards,
Yongqiang He
2008-12-12
Email: [email protected]
Tel: 86-10-62600966(O)
Research Center for Grid and Service Computing,
Institute of Computing Technology,
Chinese Academy of Sciences
P.O.Box 2704, 100080, Beijing, China
发件人： Arun C Murthy (JIRA)
发送时间： 2008-12-12 17:10:57
收件人： [email protected]
抄送：
主题： [jira] Assigned: (HADOOP-4749) reducer should output input datasize when
shuffling is done
[
https://issues.apache.org/jira/browse/HADOOP-4749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Arun C Murthy reassigned HADOOP-4749:
-------------------------------------
Assignee: he yongqiang
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
> reducer should output input data size when shuffling is done
> ------------------------------------------------------------
>
> Key: HADOOP-4749
> URL: https://issues.apache.org/jira/browse/HADOOP-4749
> Project: Hadoop Core
> Issue Type: Improvement
> Components: mapred
> Affects Versions: 0.19.0
> Reporter: Zheng Shao
> Assignee: he yongqiang
> Fix For: 0.20.0
>
> Attachments: 4749.patch
>
>
> Sometimes we see a single slow reducer because of the load balancing problem.
> This information will be very useful to understand how imbalanced the load is.
> Should be easy to fix I guess, since reducer should have all information
> needed at the end of the shuffling phase.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
