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From "locker (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (GIRAPH-53) Unable to read additional data from server session, likely server has closed socket
Date Fri, 14 Oct 2011 09:50:11 GMT
Unable to read additional data from server session, likely server has closed socket
-----------------------------------------------------------------------------------

                 Key: GIRAPH-53
                 URL: https://issues.apache.org/jira/browse/GIRAPH-53
             Project: Giraph
          Issue Type: Bug
            Reporter: locker


I've got an error recently. Every thing goes well till it comes to the 103rd superstep. 

2011-10-14 16:23:38,904 INFO org.apache.giraph.comm.BasicRPCCommunications: prepareSuperstep
2011-10-14 16:23:39,018 WARN org.apache.giraph.graph.BspService: process: Unknown and unprocessed
event (path=/_hadoopBsp/job_201110141621_0001/_applicationAttemptsDir/0/_superstepDir/101/_vertexRangeAssignments,
type=NodeDeleted, state=SyncConnected)
2011-10-14 16:23:39,057 INFO org.apache.giraph.graph.BspServiceWorker: registerHealth: Created
my health node for attempt=0, superstep=103 with /_hadoopBsp/job_201110141621_0001/_applicationAttemptsDir/0/_superstepDir/103/_workerHealthyDir/locker-desktop_1
and hostnamePort = ["locker-desktop",30001]
2011-10-14 16:23:39,057 WARN org.apache.giraph.graph.BspService: process: Unknown and unprocessed
event (path=/_hadoopBsp/job_201110141621_0001/_applicationAttemptsDir/0/_superstepDir/101/_superstepFinished,
type=NodeDeleted, state=SyncConnected)
2011-10-14 16:23:39,529 INFO org.apache.zookeeper.ClientCnxn: Unable to read additional data
from server sessionid 0x1330186cff30001, likely server has closed socket, closing socket connection
and attempting reconnect
2011-10-14 16:23:39,630 ERROR org.apache.zookeeper.ClientCnxn: Error while calling watcher

java.lang.RuntimeException: process: Disconnected from ZooKeeper, cannot recover.
	at org.apache.giraph.graph.BspService.process(BspService.java:995)
	at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:488)
2011-10-14 16:23:41,098 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to
server locker-desktop/10.13.30.90:22181
2011-10-14 16:23:41,099 WARN org.apache.zookeeper.ClientCnxn: Session 0x1330186cff30001 for
server null, unexpected error, closing socket connection and attempting reconnect
java.net.ConnectException: Connection refused
	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
	at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1078)
2011-10-14 16:23:41,212 INFO org.apache.hadoop.mapred.TaskLogsTruncater: Initializing logs'
truncater with mapRetainSize=-1 and reduceRetainSize=-1
2011-10-14 16:23:41,306 INFO org.apache.hadoop.io.nativeio.NativeIO: Initialized cache for
UID to User mapping with a cache timeout of 14400 seconds.
2011-10-14 16:23:41,307 INFO org.apache.hadoop.io.nativeio.NativeIO: Got UserName dic for
UID 1001 from the native implementation
2011-10-14 16:23:41,318 WARN org.apache.hadoop.mapred.Child: Error running child
java.lang.RuntimeException: org.apache.zookeeper.KeeperException$ConnectionLossException:
KeeperErrorCode = ConnectionLoss for /_hadoopBsp/job_201110141621_0001/_applicationAttemptsDir/0/_superstepDir/103/_vertexRangeAssignments
	at org.apache.giraph.graph.BspServiceWorker.startSuperstep(BspServiceWorker.java:836)
	at org.apache.giraph.graph.GraphMapper.map(GraphMapper.java:551)
	at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144)
	at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:763)
	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:369)
	at org.apache.hadoop.mapred.Child$4.run(Child.java:259)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:396)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
	at org.apache.hadoop.mapred.Child.main(Child.java:253)
Caused by: org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode =
ConnectionLoss for /_hadoopBsp/job_201110141621_0001/_applicationAttemptsDir/0/_superstepDir/103/_vertexRangeAssignments
	at org.apache.zookeeper.KeeperException.create(KeeperException.java:90)
	at org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
	at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:809)
	at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:837)
	at org.apache.giraph.graph.BspServiceWorker.startSuperstep(BspServiceWorker.java:830)
	... 9 more
I dont know whether it should be called a bug or not. Wait for some help, thx...

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