[jira] [Commented] (MAPREDUCE-4467) IndexCache failures due to missing synchronization

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13419494#comment-13419494 ] 

Hadoop QA commented on MAPREDUCE-4467:
--------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12537395/mapreduce-4467.patch.txt
  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 javac.  The applied patch does not increase the total number of javac compiler warnings.

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

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any 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 passed unit tests in hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/2639//testReport/
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/2639//console

This message is automatically generated.
                
> IndexCache failures due to missing synchronization
> --------------------------------------------------
>
>                 Key: MAPREDUCE-4467
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4467
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 0.23.2
>            Reporter: Andrey Klochkov
>            Assignee: Kihwal Lee
>             Fix For: 0.23.3, 3.0.0, 2.2.0-alpha
>
>         Attachments: mapreduce-4467.patch.txt
>
>
> TestMRJobs.testSleepJob fails randomly due to synchronization error in IndexCache:
> {code}
> 2012-07-20 19:32:34,627 ERROR [New I/O server worker #2-1] mapred.ShuffleHandler (ShuffleHandler.java:exceptionCaught(528)) - Shuffle error: 
> java.lang.IllegalMonitorStateException
> 	at java.lang.Object.wait(Native Method)
> 	at org.apache.hadoop.mapred.IndexCache.getIndexInformation(IndexCache.java:74)
> 	at org.apache.hadoop.mapred.ShuffleHandler$Shuffle.sendMapOutput(ShuffleHandler.java:471)
> 	at org.apache.hadoop.mapred.ShuffleHandler$Shuffle.messageReceived(ShuffleHandler.java:397)
> 	at org.jboss.netty.handler.stream.ChunkedWriteHandler.handleUpstream(ChunkedWriteHandler.java:148)
> 	at org.jboss.netty.handler.codec.http.HttpChunkAggregator.messageReceived(HttpChunkAggregator.java:116)
> 	at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:302)
> 	at org.jboss.netty.handler.codec.replay.ReplayingDecoder.unfoldAndfireMessageReceived(ReplayingDecoder.java:522)
> 	at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:506)
> 	at org.jboss.netty.handler.codec.replay.ReplayingDecoder.messageReceived(ReplayingDecoder.java:443)
> 	at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:274)
> 	at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:261)
> 	at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:349)
> 	at org.jboss.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:280)
> 	at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:200)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> 	at java.lang.Thread.run(Thread.java:662)
> {code}
> A related issue is MAPREDUCE-4384. The change introduced there removed "synchronized" keyword and hence "info.wait()" call fails. Tbis needs to be wrapped into a "synchronized" block.

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