[
https://issues.apache.org/jira/browse/HADOOP-3827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12616880#action_12616880
]
Hadoop QA commented on HADOOP-3827:
-----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12386848/HADOOP-3827_0_20080724.patch
against trunk revision 679743.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 3 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 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/2950/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2950/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2950/artifact/trunk/build/test/checkstyle-errors.html
Console output:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2950/console
This message is automatically generated.
> Jobs with empty map-outputs and intermediate compression fail
> -------------------------------------------------------------
>
> Key: HADOOP-3827
> URL: https://issues.apache.org/jira/browse/HADOOP-3827
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.18.0
> Reporter: Arun C Murthy
> Assignee: Arun C Murthy
> Priority: Blocker
> Fix For: 0.18.0
>
> Attachments: HADOOP-3827_0_20080724.patch
>
>
> The corner case where there are zero map-outputs doesn't pass the codec to
> the IFile.Writer leading to un-compressed data and subsequently failure on
> the reduce when it tries to decompress that data.
> The straight-forward fix is to pass the codec:
> {noformat}
> Writer<K, V> writer = new Writer<K, V>(job, finalOut,
> - keyClass, valClass, null);
> + keyClass, valClass, codec);
> {noformat}
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
