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https://issues.apache.org/jira/browse/MAPREDUCE-1784?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12866720#action_12866720
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Hadoop QA commented on MAPREDUCE-1784:
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-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12444268/mapred-1784-1.patch
against trunk revision 943372.
+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 new tests are needed for this
patch.
Also please list what manual steps were performed to
verify this patch.
+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 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 passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h4.grid.sp2.yahoo.net/183/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h4.grid.sp2.yahoo.net/183/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results:
http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h4.grid.sp2.yahoo.net/183/artifact/trunk/build/test/checkstyle-errors.html
Console output:
http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h4.grid.sp2.yahoo.net/183/console
This message is automatically generated.
> IFile should check for null compressor
> --------------------------------------
>
> Key: MAPREDUCE-1784
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1784
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 0.22.0
> Reporter: Eli Collins
> Assignee: Eli Collins
> Priority: Minor
> Fix For: 0.22.0
>
> Attachments: mapred-1784-1.patch
>
>
> IFile assumes that when it has a codec it can always get a compressor. This
> fails when mapred.compress.map.output is true but the native libraries are
> not installed, resulting in an NPE:
> {code}
> java.lang.NullPointerException
> at org.apache.hadoop.mapred.IFile$Writer.<init>(IFile.java:102)
> at
> org.apache.hadoop.mapred.MapTask$MapOutputBuffer.sortAndSpill(MapTask.java:1198)
> at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.flush(MapTask.java:1091)
> at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:359)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:307)
> at org.apache.hadoop.mapred.Child.main(Child.java:170)
> {code}
> Let's make IFile handle this case by logging and using non-compressed
> streams.l
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