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https://issues.apache.org/jira/browse/TAJO-1025?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14137098#comment-14137098
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Jinho Kim commented on TAJO-1025:
---------------------------------
[~ykrips]
Could you rebase it against the latest revision?
[~hyunsik] and [ ~ykrips]
We should consider the following :
1. short intermittent network disconnect
2. terminated all taskRunner
3. cleanup (e,g, Reporter, HashShuffleAppender, codegen class ... )
...
Thanks
> Network disconnection during query processing can cause infinite exceptions
> ---------------------------------------------------------------------------
>
> Key: TAJO-1025
> URL: https://issues.apache.org/jira/browse/TAJO-1025
> Project: Tajo
> Issue Type: Bug
> Components: rpc, worker
> Reporter: Hyunsik Choi
> Assignee: Jihun Kang
> Attachments: TAJO-1025.20140915.patch
>
>
> If network is disconnected during query processing, infinite exception will
> be caused as follows:
> Actually, network disconnection may occur rarely in this area, but we should
> consider such a case too.
> {noformat}
> 2014-09-02 09:46:48,673 ERROR org.apache.tajo.rpc.AsyncRpcClient: RPC
> Exception:java.net.SocketException: Network is unreachable
> 2014-09-02 09:46:48,673 ERROR org.apache.tajo.rpc.AsyncRpcClient: null,class
> org.apache.tajo.ipc.QueryMasterProtocol,Network is unreachable
> java.net.SocketException: Network is unreachable
> at sun.nio.ch.Net.connect0(Native Method)
> at sun.nio.ch.Net.connect(Net.java:465)
> at sun.nio.ch.Net.connect(Net.java:457)
> at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:670)
> at
> org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink.connect(NioClientSocketPipelineSink.java:108)
> at
> org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink.eventSunk(NioClientSocketPipelineSink.java:70)
> at
> org.jboss.netty.handler.codec.oneone.OneToOneEncoder.handleDownstream(OneToOneEncoder.java:54)
> at
> org.jboss.netty.handler.codec.oneone.OneToOneEncoder.handleDownstream(OneToOneEncoder.java:54)
> at org.jboss.netty.channel.Channels.connect(Channels.java:634)
> at
> org.jboss.netty.channel.AbstractChannel.connect(AbstractChannel.java:207)
> at
> org.jboss.netty.bootstrap.ClientBootstrap.connect(ClientBootstrap.java:229)
> at
> org.jboss.netty.bootstrap.ClientBootstrap.connect(ClientBootstrap.java:182)
> at org.apache.tajo.rpc.NettyClientBase.connect(NettyClientBase.java:76)
> at org.apache.tajo.rpc.NettyClientBase.init(NettyClientBase.java:63)
> at org.apache.tajo.rpc.AsyncRpcClient.<init>(AsyncRpcClient.java:77)
> at
> org.apache.tajo.rpc.RpcConnectionPool.makeConnection(RpcConnectionPool.java:64)
> at
> org.apache.tajo.rpc.RpcConnectionPool.getConnection(RpcConnectionPool.java:78)
> at org.apache.tajo.worker.TaskRunner$1.run(TaskRunner.java:378)
> at java.lang.Thread.run(Thread.java:744)
> 2014-09-02 09:46:48,673 ERROR org.apache.tajo.rpc.AsyncRpcClient: RPC
> Exception:java.net.SocketException: Network is unreachable
> 2014-09-02 09:46:48,673 ERROR org.apache.tajo.rpc.AsyncRpcClient: null,class
> org.apache.tajo.ipc.QueryMasterProtocol,Network is unreachable
> java.net.SocketException: Network is unreachable
> at sun.nio.ch.Net.connect0(Native Method)
> at sun.nio.ch.Net.connect(Net.java:465)
> at sun.nio.ch.Net.connect(Net.java:457)
> at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:670)
> at
> org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink.connect(NioClientSocketPipelineSink.java:108)
> at
> org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink.eventSunk(NioClientSocketPipelineSink.java:70)
> at
> org.jboss.netty.handler.codec.oneone.OneToOneEncoder.handleDownstream(OneToOneEncoder.java:54)
> at
> org.jboss.netty.handler.codec.oneone.OneToOneEncoder.handleDownstream(OneToOneEncoder.java:54)
> at org.jboss.netty.channel.Channels.connect(Channels.java:634)
> at
> org.jboss.netty.channel.AbstractChannel.connect(AbstractChannel.java:207)
> at
> org.jboss.netty.bootstrap.ClientBootstrap.connect(ClientBootstrap.java:229)
> at
> org.jboss.netty.bootstrap.ClientBootstrap.connect(ClientBootstrap.java:182)
> at org.apache.tajo.rpc.NettyClientBase.connect(NettyClientBase.java:76)
> at org.apache.tajo.rpc.NettyClientBase.init(NettyClientBase.java:63)
> at org.apache.tajo.rpc.AsyncRpcClient.<init>(AsyncRpcClient.java:77)
> at
> org.apache.tajo.rpc.RpcConnectionPool.makeConnection(RpcConnectionPool.java:64)
> at
> org.apache.tajo.rpc.RpcConnectionPool.getConnection(RpcConnectionPool.java:78)
> at org.apache.tajo.worker.TaskRunner$1.run(TaskRunner.java:378)
> at java.lang.Thread.run(Thread.java:744)
> ....
> {noformat}
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