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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6318) SplitLogWorker exited due to ConcurrentModificationException
Date Fri, 06 Jul 2012 09:24:34 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6318?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13407855#comment-13407855
] 

Hadoop QA commented on HBASE-6318:
----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12535309/6318-hbase_v2.patch
  against trunk revision .

    +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 hadoop2.0.  The patch compiles against the hadoop 2.0 profile.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    -1 javac.  The applied patch generated 5 javac compiler warnings (more than the trunk's
current 4 warnings).

    -1 findbugs.  The patch appears to introduce 6 new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

     -1 core tests.  The patch failed these unit tests:
                       org.apache.hadoop.hbase.coprocessor.TestRegionServerCoprocessorExceptionWithAbort

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/2336//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/2336//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/2336//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/2336//console

This message is automatically generated.
                
> SplitLogWorker exited due to ConcurrentModificationException
> ------------------------------------------------------------
>
>                 Key: HBASE-6318
>                 URL: https://issues.apache.org/jira/browse/HBASE-6318
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver
>    Affects Versions: 0.96.0
>            Reporter: Jimmy Xiang
>            Assignee: Jimmy Xiang
>         Attachments: 6138.patch, 6318-hbase.patch, 6318-hbase_v2.patch, 6318-hbase_v2.patch,
6318-hbase_v2.patch, 6318-suggest.txt, 6318.log
>
>
> In playing with 0.96 code on a live cluster, found this issue:
> 2012-07-03 12:13:32,572 ERROR org.apache.hadoop.hbase.regionserver.SplitLogWorker: unexpected
error
> java.util.ConcurrentModificationException
>         at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1100)
>         at java.util.TreeMap$ValueIterator.next(TreeMap.java:1145)
>         at org.apache.hadoop.hbase.regionserver.wal.HLogSplitter$OutputSink.closeLogWriters(HLogSplitter.java:1330)
>         at org.apache.hadoop.hbase.regionserver.wal.HLogSplitter$OutputSink.finishWritingAndClose(HLogSplitter.java:1221)
>         at org.apache.hadoop.hbase.regionserver.wal.HLogSplitter.splitLogFileToTemp(HLogSplitter.java:441)
>         at org.apache.hadoop.hbase.regionserver.wal.HLogSplitter.splitLogFileToTemp(HLogSplitter.java:369)
>         at org.apache.hadoop.hbase.regionserver.SplitLogWorker$1.exec(SplitLogWorker.java:113)
>         at org.apache.hadoop.hbase.regionserver.SplitLogWorker.grabTask(SplitLogWorker.java:276)
>         at org.apache.hadoop.hbase.regionserver.SplitLogWorker.taskLoop(SplitLogWorker.java:197)
>         at org.apache.hadoop.hbase.regionserver.SplitLogWorker.run(SplitLogWorker.java:164)
>         at java.lang.Thread.run(Thread.java:662)
> 2012-07-03 12:13:32,575 INFO org.apache.hadoop.hbase.regionserver.SplitLogWorker: SplitLogWorker
****.cloudera.com,57020,1341335300238 exiting

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