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https://issues.apache.org/jira/browse/HADOOP-4377?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12645902#action_12645902
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Hadoop QA commented on HADOOP-4377:
-----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12393516/hadoop-s3n-tmpdir.patch
against trunk revision 712247.
+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 tests are needed for 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 Eclipse classpath. The patch retains Eclipse classpath integrity.
+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/Hadoop-Patch/3551/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3551/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3551/artifact/trunk/build/test/checkstyle-errors.html
Console output:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3551/console
This message is automatically generated.
> Race condition creating S3 buffer directory for NativeS3FileSystem
> ------------------------------------------------------------------
>
> Key: HADOOP-4377
> URL: https://issues.apache.org/jira/browse/HADOOP-4377
> Project: Hadoop Core
> Issue Type: Bug
> Components: fs/s3
> Affects Versions: 0.18.1
> Reporter: David Phillips
> Assignee: David Phillips
> Attachments: hadoop-s3n-tmpdir.patch, hadoop-s3n-tmpdir.patch
>
>
> The buffer directory is checked for existence, then created if it doesn't
> exist. But the create can fail if the another process creates it in between.
> We can fix this by checking for existence again if the create fails. I've
> seen "Cannot create S3 buffer directory" occur, and this race is the most
> plausible explanation.
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