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https://issues.apache.org/jira/browse/TAJO-1385?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14367359#comment-14367359
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ASF GitHub Bot commented on TAJO-1385:
--------------------------------------
Github user ykrips commented on the pull request:
https://github.com/apache/tajo/pull/407#issuecomment-83034089
I have found an exception on this patch. Could you check this exception?
```
java.util.concurrent.TimeoutException: Timed-out
at org.apache.tajo.util.BasicFuture.get(BasicFuture.java:70)
at
org.apache.tajo.master.rm.TajoWorkerResourceManager.getClusterResourceSummary(TajoWorkerResourceManager.java:370)
at
org.apache.tajo.master.QueryCoordinatorService$ProtocolServiceHandler.heartbeat(QueryCoordinatorService.java:116)
at
org.apache.tajo.ipc.QueryCoordinatorProtocol$QueryCoordinatorProtocolService$1.heartbeat(QueryCoordinatorProtocol.java:13756)
at
org.apache.tajo.ipc.QueryCoordinatorProtocol$QueryCoordinatorProtocolService.callMethod(QueryCoordinatorProtocol.java:13920)
at
org.apache.tajo.rpc.AsyncRpcServer$ServerHandler.channelRead(AsyncRpcServer.java:124)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)
at
io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)
at
io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:182)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)
at
io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:846)
at
io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:130)
at
io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)
at
io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
at
io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
at
io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
at java.lang.Thread.run(Thread.java:695)
```
> Remove locking on RMContext
> ---------------------------
>
> Key: TAJO-1385
> URL: https://issues.apache.org/jira/browse/TAJO-1385
> Project: Tajo
> Issue Type: Improvement
> Reporter: Navis
> Assignee: Navis
> Priority: Trivial
>
> Seemed not necessary.
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