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https://issues.apache.org/jira/browse/HAMA-890?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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lujing.zui resolved HAMA-890.
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Resolution: Won't Fix
hostname system problem would cause zookeeper exiting. and cause this probelm.
> PipesApplication connect to ZooKeeperSyncClinetImpl always timeout
> ------------------------------------------------------------------
>
> Key: HAMA-890
> URL: https://issues.apache.org/jira/browse/HAMA-890
> Project: Hama
> Issue Type: Bug
> Affects Versions: 0.7.0
> Environment: Hadoop 2.2.0 distribute mode
> Reporter: lujing.zui
>
> I build a cluster, which contain 4 groomservers.
> I run a pipesApplication, matrixmultiplication, and in one groomserver, it
> occurs a problems to connect to ZooKeeperSyncClient. so entire job failed.
> but in other groomservers, everything is fine.
> I reboot the problematic node, still not solve this problem.
> As my understanding, both sides of this connect are in one node, connection
> accept timeout seems impossible. iptables is off, and network is normal, ping
> every node is ok.
> I am so confused, any one can help me or give me some hint or suggestion?
> Thanks so much!
> the log list below:
> 14/03/15 16:21:05 INFO ipc.Server: Starting Socket Reader #1 for port 61002
> 14/03/15 16:21:05 INFO ipc.Server: IPC Server Responder: starting
> 14/03/15 16:21:05 INFO ipc.Server: IPC Server listener on 61002: starting
> 14/03/15 16:21:05 INFO ipc.Server: IPC Server handler 0 on 61002: starting
> 14/03/15 16:21:05 INFO ipc.Server: IPC Server handler 2 on 61002: starting
> 14/03/15 16:21:05 INFO ipc.Server: IPC Server handler 1 on 61002: starting
> 14/03/15 16:21:05 INFO ipc.Server: IPC Server handler 3 on 61002: starting
> 14/03/15 16:21:05 INFO message.HamaMessageManagerImpl: BSPPeer
> address:hd1.hadoop.lab port:61002
> 14/03/15 16:21:05 INFO ipc.Server: IPC Server handler 4 on 61002: starting
> 14/03/15 16:21:05 INFO Configuration.deprecation: mapred.cache.localFiles is
> deprecated. Instead, use mapreduce.job.cache.local.files
> 14/03/15 16:21:05 INFO sync.ZKSyncClient: Initializing ZK Sync Client
> 14/03/15 16:21:05 INFO sync.ZooKeeperSyncClientImpl: Start connecting to
> Zookeeper! At hd1.hadoop.lab/222.195.92.69:61002
> 14/03/15 16:21:08 ERROR bsp.BSPTask: Error running bsp setup and bsp function.
> java.net.SocketTimeoutException: Accept timed out
> at java.net.PlainSocketImpl.socketAccept(Native Method)
> at
> java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:375)
> at java.net.ServerSocket.implAccept(ServerSocket.java:478)
> at java.net.ServerSocket.accept(ServerSocket.java:446)
> at
> org.apache.hama.pipes.PipesApplication.start(PipesApplication.java:286)
> at org.apache.hama.pipes.PipesBSP.setup(PipesBSP.java:43)
> at org.apache.hama.bsp.BSPTask.runBSP(BSPTask.java:170)
> at org.apache.hama.bsp.BSPTask.run(BSPTask.java:144)
> at
> org.apache.hama.bsp.GroomServer$BSPPeerChild.main(GroomServer.java:1243)
> 14/03/15 16:21:08 ERROR bsp.BSPTask: Error cleaning up after bsp executed.
> java.lang.NullPointerException
> at org.apache.hama.pipes.PipesBSP.cleanup(PipesBSP.java:95)
> at org.apache.hama.bsp.BSPTask.runBSP(BSPTask.java:177)
> at org.apache.hama.bsp.BSPTask.run(BSPTask.java:144)
> at
> org.apache.hama.bsp.GroomServer$BSPPeerChild.main(GroomServer.java:1243)
> 14/03/15 16:21:08 INFO ipc.Server: Stopping server on 61002
> 14/03/15 16:21:08 INFO ipc.Server: IPC Server handler 0 on 61002: exiting
> 14/03/15 16:21:08 INFO ipc.Server: IPC Server handler 2 on 61002: exiting
> 14/03/15 16:21:08 INFO ipc.Server: Stopping IPC Server listener on 61002
> 14/03/15 16:21:08 INFO ipc.Server: IPC Server handler 3 on 61002: exiting
> 14/03/15 16:21:08 INFO ipc.Server: IPC Server handler 4 on 61002: exiting
> 14/03/15 16:21:08 INFO ipc.Server: IPC Server handler 1 on 61002: exiting
> 14/03/15 16:21:08 INFO ipc.Server: Stopping IPC Server Responder
> 14/03/15 16:21:08 ERROR bsp.BSPTask: Shutting down ping service.
> 14/03/15 16:21:08 FATAL bsp.GroomServer: Error running child
> java.net.SocketTimeoutException: Accept timed out
> at java.net.PlainSocketImpl.socketAccept(Native Method)
> at
> java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:375)
> at java.net.ServerSocket.implAccept(ServerSocket.java:478)
> at java.net.ServerSocket.accept(ServerSocket.java:446)
> at
> org.apache.hama.pipes.PipesApplication.start(PipesApplication.java:286)
> at org.apache.hama.pipes.PipesBSP.setup(PipesBSP.java:43)
> at org.apache.hama.bsp.BSPTask.runBSP(BSPTask.java:170)
> at org.apache.hama.bsp.BSPTask.run(BSPTask.java:144)
> at
> org.apache.hama.bsp.GroomServer$BSPPeerChild.main(GroomServer.java:1243)
> java.net.SocketTimeoutException: Accept timed out
> at java.net.PlainSocketImpl.socketAccept(Native Method)
> at
> java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:375)
> at java.net.ServerSocket.implAccept(ServerSocket.java:478)
> at java.net.ServerSocket.accept(ServerSocket.java:446)
> at
> org.apache.hama.pipes.PipesApplication.start(PipesApplication.java:286)
> at org.apache.hama.pipes.PipesBSP.setup(PipesBSP.java:43)
> at org.apache.hama.bsp.BSPTask.runBSP(BSPTask.java:170)
> at org.apache.hama.bsp.BSPTask.run(BSPTask.java:144)
> at
> org.apache.hama.bsp.GroomServer$BSPPeerChild.main(GroomServer.java:1243)
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