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https://issues.apache.org/jira/browse/TAJO-1254?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jinho Kim resolved TAJO-1254.
-----------------------------
Resolution: Fixed
committed it.
> Fix getProgress race conditions in Query
> ----------------------------------------
>
> Key: TAJO-1254
> URL: https://issues.apache.org/jira/browse/TAJO-1254
> Project: Tajo
> Issue Type: Bug
> Components: query master
> Affects Versions: 0.9.0
> Reporter: Jinho Kim
> Assignee: Jinho Kim
> Fix For: 0.9.1
>
>
> {noformat}
> org.apache.tajo.engine.query.TestJoinQuery.testLeftOuterJoinWithEmptyTable4(TestJoinQuery.java:400)
> Caused by: org.apache.tajo.rpc.TajoServiceException:
> java.util.ConcurrentModificationException
> at
> org.apache.tajo.rpc.BlockingRpcClient.makeTajoServiceException(BlockingRpcClient.java:171)
> at
> org.apache.tajo.rpc.BlockingRpcClient.access$400(BlockingRpcClient.java:42)
> at
> org.apache.tajo.rpc.BlockingRpcClient$ClientChannelUpstreamHandler.messageReceived(BlockingRpcClient.java:191)
> at
> org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
> at
> org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
> at
> org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
> at
> org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296)
> at
> org.jboss.netty.handler.codec.oneone.OneToOneDecoder.handleUpstream(OneToOneDecoder.java:70)
> at
> org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
> at
> org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
> at
> org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296)
> at
> org.jboss.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:462)
> at
> org.jboss.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:443)
> at
> org.jboss.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:310)
> at
> org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
> at
> org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
> at
> org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
> at
> org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268)
> at
> org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255)
> at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:109)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:312)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:90)
> at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
> at
> org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
> at
> org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:701)
> Caused by: com.google.protobuf.ServiceException:
> java.util.ConcurrentModificationException
> at java.util.HashMap$HashIterator.nextEntry(HashMap.java:810)
> at java.util.HashMap$ValueIterator.next(HashMap.java:839)
> at java.util.AbstractCollection.toArray(AbstractCollection.java:141)
> at java.util.ArrayList.addAll(ArrayList.java:497)
> at org.apache.tajo.master.querymaster.Query.getProgress(Query.java:242)
> {noformat}
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