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https://issues.apache.org/jira/browse/HADOOP-3684?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12610093#action_12610093
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Hadoop QA commented on HADOOP-3684:
-----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12385153/H-3684.txt
against trunk revision 673517.
+1 @author. The patch does not contain any @author tags.
-1 tests included. The patch doesn't appear to include any new or modified
tests.
Please justify why no tests are needed for this patch.
-1 patch. The patch command could not apply the patch.
Console output:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2786/console
This message is automatically generated.
> The data_join should allow the user to implement a customer cloning function
> ----------------------------------------------------------------------------
>
> Key: HADOOP-3684
> URL: https://issues.apache.org/jira/browse/HADOOP-3684
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Reporter: Runping Qi
> Fix For: 0.19.0
>
> Attachments: H-3684.txt
>
>
> Currently, the framework uses serialization/deserialization to clone the
> values passed to the resuce function.
> This amounts to a very heavy weight deep copy of the value objects.
> That is way too expensive. Although that may be a generic way to work for all
> possible value classes, thus good as a default way,
> the framework should allow the user to implemet an application specific yet
> efficient cloning function.
>
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