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Posted to mapreduce-issues@hadoop.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2011/02/27 02:16:58 UTC
[jira] Commented: (MAPREDUCE-2225) MultipleOutputs should not
require the use of 'Writable'
[ https://issues.apache.org/jira/browse/MAPREDUCE-2225?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12999858#comment-12999858 ]
Hadoop QA commented on MAPREDUCE-2225:
--------------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12467578/multipleoutputs.nowritables.r2.diff
against trunk revision 1074251.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 6 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs (version 1.3.9) warnings.
+1 release audit. The applied patch does not increase the total number of release audit warnings.
+1 core tests. The patch passed core unit tests.
-1 contrib tests. The patch failed contrib unit tests.
+1 system test framework. The patch passed system test framework compile.
Test results: https://hudson.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/44//testReport/
Findbugs warnings: https://hudson.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/44//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://hudson.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/44//console
This message is automatically generated.
> MultipleOutputs should not require the use of 'Writable'
> --------------------------------------------------------
>
> Key: MAPREDUCE-2225
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2225
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: job submission
> Affects Versions: 0.20.1
> Environment: Linux
> Reporter: Harsh J Chouraria
> Assignee: Harsh J Chouraria
> Priority: Blocker
> Fix For: 0.22.0
>
> Attachments: multipleoutputs.nowritables.r1.diff, multipleoutputs.nowritables.r2.diff
>
> Original Estimate: 1m
> Remaining Estimate: 1m
>
> MultipleOutputs right now requires for Key/Value classes to utilize the Writable and WritableComparable interfaces, and fails if the associated key/value classes aren't doing so.
> With support for alternates like Avro serialization, using Writables isn't necessary and thus the MO class must not strictly check for them.
> And since comparators may be given separately, key class doesn't need to be checked for implementing a comparable (although it is good design if the key class does implement Comparable at least).
> Am not sure if this brings about an incompatible change (does Java have BIC? No idea).
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