[ 
https://issues.apache.org/jira/browse/HBASE-9827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13803637#comment-13803637
 ] 

Hadoop QA commented on HBASE-9827:
----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12609928/trunk-9827.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author 
tags.

    {color:green}+1 tests included{color}.  The patch appears to include 3 new 
or modified tests.

    {color:green}+1 hadoop1.0{color}.  The patch compiles against the hadoop 
1.0 profile.

    {color:green}+1 hadoop2.0{color}.  The patch compiles against the hadoop 
2.0 profile.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any 
warning messages.

    {color:green}+1 javac{color}.  The applied patch does not increase the 
total number of javac compiler warnings.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new 
Findbugs (version 1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase 
the total number of release audit warnings.

    {color:green}+1 lineLengths{color}.  The patch does not introduce lines 
longer than 100

    {color:red}-1 site{color}.  The patch appears to cause mvn site goal to 
fail.

    {color:green}+1 core tests{color}.  The patch passed unit tests in .

Test results: 
https://builds.apache.org/job/PreCommit-HBASE-Build/7611//testReport/
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/7611//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/7611//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-thrift.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/7611//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/7611//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/7611//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop1-compat.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/7611//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/7611//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/7611//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HBASE-Build/7611//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Console output: 
https://builds.apache.org/job/PreCommit-HBASE-Build/7611//console

This message is automatically generated.

> Intermittent TestLogRollingNoCluster#testContendedLogRolling failure
> --------------------------------------------------------------------
>
>                 Key: HBASE-9827
>                 URL: https://issues.apache.org/jira/browse/HBASE-9827
>             Project: HBase
>          Issue Type: Test
>            Reporter: Ted Yu
>            Assignee: Jimmy Xiang
>         Attachments: trunk-9827.patch
>
>
> From 
> https://builds.apache.org/job/HBase-TRUNK/lastCompletedBuild/testReport/org.apache.hadoop.hbase.regionserver.wal/TestLogRollingNoCluster/testContendedLogRolling/
>  :
> {code}
> java.lang.AssertionError
>       at org.junit.Assert.fail(Assert.java:86)
>       at org.junit.Assert.assertTrue(Assert.java:41)
>       at org.junit.Assert.assertFalse(Assert.java:64)
>       at org.junit.Assert.assertFalse(Assert.java:74)
>       at 
> org.apache.hadoop.hbase.regionserver.wal.TestLogRollingNoCluster.testContendedLogRolling(TestLogRollingNoCluster.java:79)
> ...
> 2013-10-23 00:20:36,872 INFO  [18] wal.FSHLog(527): Rolled WAL 
> /home/jenkins/jenkins-slave/workspace/HBase-TRUNK/trunk/hbase-server/target/test-data/39875b32-a156-48ac-875f-9f67689d3a2e/logs/hlog.1382487636870
>  with entries=28, filesize=30.0k; new WAL 
> /home/jenkins/jenkins-slave/workspace/HBase-TRUNK/trunk/hbase-server/target/test-data/39875b32-a156-48ac-875f-9f67689d3a2e/logs/hlog.1382487636872
> 2013-10-23 00:20:36,873 INFO  [51] wal.TestLogRollingNoCluster$Appender(135): 
> Caught exception from Appender:51
> java.io.IOException: cannot get log writer
>       at 
> org.apache.hadoop.hbase.regionserver.wal.HLogFactory.createWriter(HLogFactory.java:197)
>       at 
> org.apache.hadoop.hbase.regionserver.wal.HLogFactory.createWALWriter(HLogFactory.java:177)
>       at 
> org.apache.hadoop.hbase.regionserver.wal.FSHLog.createWriterInstance(FSHLog.java:566)
>       at 
> org.apache.hadoop.hbase.regionserver.wal.FSHLog.rollWriter(FSHLog.java:509)
>       at 
> org.apache.hadoop.hbase.regionserver.wal.FSHLog.rollWriter(FSHLog.java:470)
>       at 
> org.apache.hadoop.hbase.regionserver.wal.TestLogRollingNoCluster$Appender.run(TestLogRollingNoCluster.java:118)
> Caused by: java.io.IOException: File already 
> exists:/home/jenkins/jenkins-slave/workspace/HBase-TRUNK/trunk/hbase-server/target/test-data/39875b32-a156-48ac-875f-9f67689d3a2e/logs/hlog.1382487636872
>       at 
> org.apache.hadoop.fs.RawLocalFileSystem.create(RawLocalFileSystem.java:249)
>       at 
> org.apache.hadoop.fs.RawLocalFileSystem.create(RawLocalFileSystem.java:241)
>       at 
> org.apache.hadoop.fs.ChecksumFileSystem$ChecksumFSOutputSummer.<init>(ChecksumFileSystem.java:335)
>       at 
> org.apache.hadoop.fs.ChecksumFileSystem.create(ChecksumFileSystem.java:381)
>       at 
> org.apache.hadoop.fs.ChecksumFileSystem.createNonRecursive(ChecksumFileSystem.java:395)
>       at 
> org.apache.hadoop.fs.FileSystem.createNonRecursive(FileSystem.java:610)
>       at 
> org.apache.hadoop.hbase.regionserver.wal.ProtobufLogWriter.init(ProtobufLogWriter.java:68)
>       at 
> org.apache.hadoop.hbase.regionserver.wal.HLogFactory.createWriter(HLogFactory.java:194)
> {code}
> Looks like 
> target/test-data/39875b32-a156-48ac-875f-9f67689d3a2e/logs/hlog.1382487636872 
> was created already and the second FileSystem.createNonRecursive() call 
> failed.



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