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Date: Sun, 31 May 2009 20:05:08 -0700 (PDT)
From: "Hadoop QA (JIRA)" <jira@apache.org>
To: core-dev@hadoop.apache.org
Subject: [jira] Commented: (HADOOP-5836) Bug in S3N handling of directory
 markers using an object with a trailing "/" causes jobs to fail
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    [ https://issues.apache.org/jira/browse/HADOOP-5836?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12714956#action_12714956 ] 

Hadoop QA commented on HADOOP-5836:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12409482/HADOOP-5836-2.patch
  against trunk revision 780465.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 10 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 Eclipse classpath. The patch retains Eclipse classpath integrity.

    +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 failed contrib unit tests.

Test results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-vesta.apache.org/443/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-vesta.apache.org/443/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-vesta.apache.org/443/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-vesta.apache.org/443/console

This message is automatically generated.

> Bug in S3N handling of directory markers using an object with a trailing "/" causes jobs to fail
> ------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-5836
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5836
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: fs/s3
>    Affects Versions: 0.18.3
>            Reporter: Ian Nowland
>            Assignee: Ian Nowland
>             Fix For: 0.21.0
>
>         Attachments: HADOOP-5836-0.patch, HADOOP-5836-2.patch
>
>
> Some tools which upload to S3 and use a object terminated with a "/" as a directory marker, for instance "s3n://mybucket/mydir/". If asked to iterate that "directory" via listStatus(), then the current code will return an empty file "", which the InputFormatter happily assigns to a split, and which later causes a task to fail, and probably the job to fail. 

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