You are viewing a plain text version of this content. The canonical link for it is here.
Posted to mapreduce-dev@hadoop.apache.org by "Tsuyoshi OZAWA (JIRA)" <ji...@apache.org> on 2013/06/03 11:06:21 UTC
[jira] [Reopened] (MAPREDUCE-5294) Shuffle#MergeManager should
support org.apache.hadoop.mapreduce.Reducer
[ https://issues.apache.org/jira/browse/MAPREDUCE-5294?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tsuyoshi OZAWA reopened MAPREDUCE-5294:
---------------------------------------
Sorry, I resolved this jira wrongly, so reopen it.
> Shuffle#MergeManager should support org.apache.hadoop.mapreduce.Reducer
> -----------------------------------------------------------------------
>
> Key: MAPREDUCE-5294
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5294
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: mrv2
> Affects Versions: trunk, 2.1.0-beta, 2.0.5-alpha
> Reporter: Tsuyoshi OZAWA
> Assignee: Tsuyoshi OZAWA
>
> Shuffle#MergeManager only accepts org.apache.hadoop.mapred.Reducer currently. Because of this, Reduce-side Combiner is not used when using the new API, and just ignored. By supporting it and using the feature from ReduceTask, Reduce-side combiner can be enabled with new API. Please see MAPREDUCE-5221 for more detail.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira