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https://issues.apache.org/jira/browse/HADOOP-3630?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12610387#action_12610387
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Hadoop QA commented on HADOOP-3630:
-----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12385249/3630-1.patch
against trunk revision 673869.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 9 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
-1 javac. The applied patch generated 520 javac compiler warnings (more
than the trunk's current 519 warnings).
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
-1 core tests. The patch failed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2796/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2796/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2796/artifact/trunk/build/test/checkstyle-errors.html
Console output:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2796/console
This message is automatically generated.
> CompositeRecordReader: key and values can be in uninitialized state if files
> being joined have no records
> ---------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-3630
> URL: https://issues.apache.org/jira/browse/HADOOP-3630
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.17.0
> Reporter: Jingkei Ly
> Assignee: Chris Douglas
> Fix For: 0.18.0, 0.19.0
>
> Attachments: 3630-0.patch, 3630-1.patch
>
>
> I am using org.apache.hadoop.mapred.join.CompositeInputFormat to do an
> outer-join across a number of SequenceFiles. This works fine in most
> circumstances, but I get NullPointerExceptions/uninitialized data (where
> Writable#readFields() has not been called) when some of the files being
> joined have no records in them.
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