[
https://issues.apache.org/jira/browse/MAPREDUCE-5295?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Tsuyoshi OZAWA resolved MAPREDUCE-5295.
---------------------------------------
Resolution: Duplicate
Marked as a duplicate of MAPREDUCE-5221.
> ShuffleConsumerPlugin.Context should remove unused combiner-related methods
> and fields
> --------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-5295
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5295
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Affects Versions: trunk, 2.1.0-beta, 2.0.5-alpha
> Reporter: Tsuyoshi OZAWA
> Assignee: Tsuyoshi OZAWA
> Attachments: MAPREDUCE-5295.1.patch, MAPREDUCE-5295.2.patch,
> MAPREDUCE-5295.3.patch
>
>
> ShuffleConsumerPlugin.Context only supports org.apache.hadoop.mapred.Reducer
> currently. Because of this, Reduce side Combiner is not used when using the
> new API, and just ignored. Please see MAPREDUCE-5221 for more detail.
> (Update Jun. 7th, 2013) The latest version of MergeManagerImpl in
> MAPREDUCE-5294 never calls ShuffleConsumerPlugin.Context#getCombinerClass()
> as [~masokan] pointed out. Because of this, combinerClass field and
> getCombinerClass() method should be removed from
> ShuffleConsumerPlugin.Context.
--
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
