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Posted to user@giraph.apache.org by xeniad20 <xe...@gmail.com> on 2014/08/07 22:46:56 UTC

giraph 1.1.0 Execution Error

Hi experts,

I try to execute Giraph 1.1.0 on a small cluster but I have the 
following Errors:

2014-08-07 23:35:46,141 INFO org.apache.zookeeper.ClientCnxn: Opening 
socket connection to server DataNode2/10.190.12.33:22181. Will not 
attempt to authenticate using SASL (unknown error)
2014-08-07 23:35:46,142 WARN org.apache.zookeeper.ClientCnxn: Session 
0x147b22ebf420001 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:708)
     at 
org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
2014-08-07 23:35:46,243 WARN org.apache.giraph.zk.ZooKeeperExt: 
deleteExt: Connection loss on attempt 2, waiting 5000 msecs before retrying.
org.apache.zookeeper.KeeperException$ConnectionLossException: 
KeeperErrorCode = ConnectionLoss for 
/_hadoopBsp/job_201408072332_0003/_applicationAttemptsDir/0/_superstepDir/1/_workerHealthyDir/datanode1_1
     at org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
     at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
     at org.apache.zookeeper.ZooKeeper.delete(ZooKeeper.java:873)
     at org.apache.giraph.zk.ZooKeeperExt.deleteExt(ZooKeeperExt.java:302)
     at 
org.apache.giraph.worker.BspServiceWorker.unregisterHealth(BspServiceWorker.java:768)
     at 
org.apache.giraph.worker.BspServiceWorker.failureCleanup(BspServiceWorker.java:782)
     at 
org.apache.giraph.graph.GraphTaskManager.workerFailureCleanup(GraphTaskManager.java:900)
     at org.apache.giraph.graph.GraphMapper.run(GraphMapper.java:100)
     at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
     at org.apache.hadoop.mapred.MapTask.run(MapTask.java:364)
     at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
     at java.security.AccessController.doPrivileged(Native Method)
     at javax.security.auth.Subject.doAs(Subject.java:415)
     at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
     at org.apache.hadoop.mapred.Child.main(Child.java:249)
2014-08-07 23:35:48,126 INFO org.apache.zookeeper.ClientCnxn: Opening 
socket connection to server DataNode2/10.190.12.33:22181. Will not 
attempt to authenticate using SASL (unknown error)
2014-08-07 23:35:48,127 WARN org.apache.zookeeper.ClientCnxn: Session 
0x147b22ebf420001 for server null, unexpected error, closing socket 
connection and attempting reconnect
java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at 
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:708)
     at 
org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
2014-08-07 23:35:49,368 FATAL org.apache.giraph.graph.GraphMapper: 
uncaughtException: OverrideExceptionHandler on thread Thread-12, msg = 
createExt: Failed to create 
/_hadoopBsp/job_201408072332_0003/_workerProgresses/1 after 3 tries!, 
exiting...
java.lang.IllegalStateException: createExt: Failed to create 
/_hadoopBsp/job_201408072332_0003/_workerProgresses/1 after 3 tries!
     at org.apache.giraph.zk.ZooKeeperExt.createExt(ZooKeeperExt.java:182)
     at 
org.apache.giraph.zk.ZooKeeperExt.createOrSetExt(ZooKeeperExt.java:247)
     at 
org.apache.giraph.worker.WorkerProgress.writeToZnode(WorkerProgress.java:110)
     at 
org.apache.giraph.worker.WorkerProgressWriter$1.run(WorkerProgressWriter.java:59)
     at java.lang.Thread.run(Thread.java:724)

However Giraph 1.0.0 version run without any problems.
What might be the solution for the above errors?

Any help is appreciated.

Thanks
Xenia

Re: giraph 1.1.0 Execution Error

Posted by Xenia Demetriou <xe...@gmail.com>.

Hi Vivek,

How can I see in which port Zookeeper running in my cluster?
Giraph start Zookeeper for me.

Thanks


2014-08-08 8:34 GMT+03:00 Sardeshmukh, Vivek <vi...@uiowa.edu>:

> Hi Xenia,
>
> I think there is some problem with Zookeeper. Can you make sure that
> Zookeeper server is running. If it is running then is it on port 22181?
> (because your Giraph job is trying to connect on this port). If Zookeeper
> is running on some different port then try running your Giraph job with
> -Dgiraph.zkList=<zookeper server ip>:<zookeeper port>
>
> I'm not sure whether you have to start an instance of zookeeper separately
> or Giraph will start one for you, I have a separate instance running on my
> cluster and I specify the server and port via -Dgiraph.zkList option.
>
> I hope that works.
>
> Vivek
>
> ________________________________________
> From: xeniad20 <xe...@gmail.com>
> Sent: Thursday, August 7, 2014 3:46 PM
> To: user@giraph.apache.org
> Subject: giraph 1.1.0 Execution Error
>
> Hi experts,
>
> I try to execute Giraph 1.1.0 on a small cluster but I have the
> following Errors:
>
> 2014-08-07 23:35:46,141 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server DataNode2/10.190.12.33:22181. Will not
> attempt to authenticate using SASL (unknown error)
> 2014-08-07 23:35:46,142 WARN org.apache.zookeeper.ClientCnxn: Session
> 0x147b22ebf420001 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:708)
>      at
>
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>      at
> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2014-08-07 23:35:46,243 WARN org.apache.giraph.zk.ZooKeeperExt:
> deleteExt: Connection loss on attempt 2, waiting 5000 msecs before
> retrying.
> org.apache.zookeeper.KeeperException$ConnectionLossException:
> KeeperErrorCode = ConnectionLoss for
>
> /_hadoopBsp/job_201408072332_0003/_applicationAttemptsDir/0/_superstepDir/1/_workerHealthyDir/datanode1_1
>      at
> org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
>      at
> org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
>      at org.apache.zookeeper.ZooKeeper.delete(ZooKeeper.java:873)
>      at org.apache.giraph.zk.ZooKeeperExt.deleteExt(ZooKeeperExt.java:302)
>      at
>
> org.apache.giraph.worker.BspServiceWorker.unregisterHealth(BspServiceWorker.java:768)
>      at
>
> org.apache.giraph.worker.BspServiceWorker.failureCleanup(BspServiceWorker.java:782)
>      at
>
> org.apache.giraph.graph.GraphTaskManager.workerFailureCleanup(GraphTaskManager.java:900)
>      at org.apache.giraph.graph.GraphMapper.run(GraphMapper.java:100)
>      at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
>      at org.apache.hadoop.mapred.MapTask.run(MapTask.java:364)
>      at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
>      at java.security.AccessController.doPrivileged(Native Method)
>      at javax.security.auth.Subject.doAs(Subject.java:415)
>      at
>
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
>      at org.apache.hadoop.mapred.Child.main(Child.java:249)
> 2014-08-07 23:35:48,126 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server DataNode2/10.190.12.33:22181. Will not
> attempt to authenticate using SASL (unknown error)
> 2014-08-07 23:35:48,127 WARN org.apache.zookeeper.ClientCnxn: Session
> 0x147b22ebf420001 for server null, unexpected error, closing socket
> connection and attempting reconnect
> java.net.ConnectException: Connection refused
>      at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>      at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:708)
>      at
>
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>      at
> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2014-08-07 23:35:49,368 FATAL org.apache.giraph.graph.GraphMapper:
> uncaughtException: OverrideExceptionHandler on thread Thread-12, msg =
> createExt: Failed to create
> /_hadoopBsp/job_201408072332_0003/_workerProgresses/1 after 3 tries!,
> exiting...
> java.lang.IllegalStateException: createExt: Failed to create
> /_hadoopBsp/job_201408072332_0003/_workerProgresses/1 after 3 tries!
>      at org.apache.giraph.zk.ZooKeeperExt.createExt(ZooKeeperExt.java:182)
>      at
> org.apache.giraph.zk.ZooKeeperExt.createOrSetExt(ZooKeeperExt.java:247)
>      at
>
> org.apache.giraph.worker.WorkerProgress.writeToZnode(WorkerProgress.java:110)
>      at
>
> org.apache.giraph.worker.WorkerProgressWriter$1.run(WorkerProgressWriter.java:59)
>      at java.lang.Thread.run(Thread.java:724)
>
> However Giraph 1.0.0 version run without any problems.
> What might be the solution for the above errors?
>
> Any help is appreciated.
>
> Thanks
> Xenia
>

Re: giraph 1.1.0 Execution Error

Posted by Xenia Demetriou <xe...@gmail.com>.

Hi experts,

I found the solution for the Zookeeper Exception. I have change the
hostname of the machines to lowercase.
Now any example in Giraph can executed.

Thanks for your help.



2014-08-08 8:34 GMT+03:00 Sardeshmukh, Vivek <vi...@uiowa.edu>:

> Hi Xenia,
>
> I think there is some problem with Zookeeper. Can you make sure that
> Zookeeper server is running. If it is running then is it on port 22181?
> (because your Giraph job is trying to connect on this port). If Zookeeper
> is running on some different port then try running your Giraph job with
> -Dgiraph.zkList=<zookeper server ip>:<zookeeper port>
>
> I'm not sure whether you have to start an instance of zookeeper separately
> or Giraph will start one for you, I have a separate instance running on my
> cluster and I specify the server and port via -Dgiraph.zkList option.
>
> I hope that works.
>
> Vivek
>
> ________________________________________
> From: xeniad20 <xe...@gmail.com>
> Sent: Thursday, August 7, 2014 3:46 PM
> To: user@giraph.apache.org
> Subject: giraph 1.1.0 Execution Error
>
> Hi experts,
>
> I try to execute Giraph 1.1.0 on a small cluster but I have the
> following Errors:
>
> 2014-08-07 23:35:46,141 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server DataNode2/10.190.12.33:22181. Will not
> attempt to authenticate using SASL (unknown error)
> 2014-08-07 23:35:46,142 WARN org.apache.zookeeper.ClientCnxn: Session
> 0x147b22ebf420001 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:708)
>      at
>
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>      at
> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2014-08-07 23:35:46,243 WARN org.apache.giraph.zk.ZooKeeperExt:
> deleteExt: Connection loss on attempt 2, waiting 5000 msecs before
> retrying.
> org.apache.zookeeper.KeeperException$ConnectionLossException:
> KeeperErrorCode = ConnectionLoss for
>
> /_hadoopBsp/job_201408072332_0003/_applicationAttemptsDir/0/_superstepDir/1/_workerHealthyDir/datanode1_1
>      at
> org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
>      at
> org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
>      at org.apache.zookeeper.ZooKeeper.delete(ZooKeeper.java:873)
>      at org.apache.giraph.zk.ZooKeeperExt.deleteExt(ZooKeeperExt.java:302)
>      at
>
> org.apache.giraph.worker.BspServiceWorker.unregisterHealth(BspServiceWorker.java:768)
>      at
>
> org.apache.giraph.worker.BspServiceWorker.failureCleanup(BspServiceWorker.java:782)
>      at
>
> org.apache.giraph.graph.GraphTaskManager.workerFailureCleanup(GraphTaskManager.java:900)
>      at org.apache.giraph.graph.GraphMapper.run(GraphMapper.java:100)
>      at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
>      at org.apache.hadoop.mapred.MapTask.run(MapTask.java:364)
>      at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
>      at java.security.AccessController.doPrivileged(Native Method)
>      at javax.security.auth.Subject.doAs(Subject.java:415)
>      at
>
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
>      at org.apache.hadoop.mapred.Child.main(Child.java:249)
> 2014-08-07 23:35:48,126 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server DataNode2/10.190.12.33:22181. Will not
> attempt to authenticate using SASL (unknown error)
> 2014-08-07 23:35:48,127 WARN org.apache.zookeeper.ClientCnxn: Session
> 0x147b22ebf420001 for server null, unexpected error, closing socket
> connection and attempting reconnect
> java.net.ConnectException: Connection refused
>      at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>      at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:708)
>      at
>
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>      at
> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2014-08-07 23:35:49,368 FATAL org.apache.giraph.graph.GraphMapper:
> uncaughtException: OverrideExceptionHandler on thread Thread-12, msg =
> createExt: Failed to create
> /_hadoopBsp/job_201408072332_0003/_workerProgresses/1 after 3 tries!,
> exiting...
> java.lang.IllegalStateException: createExt: Failed to create
> /_hadoopBsp/job_201408072332_0003/_workerProgresses/1 after 3 tries!
>      at org.apache.giraph.zk.ZooKeeperExt.createExt(ZooKeeperExt.java:182)
>      at
> org.apache.giraph.zk.ZooKeeperExt.createOrSetExt(ZooKeeperExt.java:247)
>      at
>
> org.apache.giraph.worker.WorkerProgress.writeToZnode(WorkerProgress.java:110)
>      at
>
> org.apache.giraph.worker.WorkerProgressWriter$1.run(WorkerProgressWriter.java:59)
>      at java.lang.Thread.run(Thread.java:724)
>
> However Giraph 1.0.0 version run without any problems.
> What might be the solution for the above errors?
>
> Any help is appreciated.
>
> Thanks
> Xenia
>

Re: giraph 1.1.0 Execution Error

Posted by Xenia Demetriou <xe...@gmail.com>.

Also I try to install Zookeeper separately but I still have the same error.


2014-08-08 8:34 GMT+03:00 Sardeshmukh, Vivek <vi...@uiowa.edu>:

> Hi Xenia,
>
> I think there is some problem with Zookeeper. Can you make sure that
> Zookeeper server is running. If it is running then is it on port 22181?
> (because your Giraph job is trying to connect on this port). If Zookeeper
> is running on some different port then try running your Giraph job with
> -Dgiraph.zkList=<zookeper server ip>:<zookeeper port>
>
> I'm not sure whether you have to start an instance of zookeeper separately
> or Giraph will start one for you, I have a separate instance running on my
> cluster and I specify the server and port via -Dgiraph.zkList option.
>
> I hope that works.
>
> Vivek
>
> ________________________________________
> From: xeniad20 <xe...@gmail.com>
> Sent: Thursday, August 7, 2014 3:46 PM
> To: user@giraph.apache.org
> Subject: giraph 1.1.0 Execution Error
>
> Hi experts,
>
> I try to execute Giraph 1.1.0 on a small cluster but I have the
> following Errors:
>
> 2014-08-07 23:35:46,141 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server DataNode2/10.190.12.33:22181. Will not
> attempt to authenticate using SASL (unknown error)
> 2014-08-07 23:35:46,142 WARN org.apache.zookeeper.ClientCnxn: Session
> 0x147b22ebf420001 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:708)
>      at
>
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>      at
> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2014-08-07 23:35:46,243 WARN org.apache.giraph.zk.ZooKeeperExt:
> deleteExt: Connection loss on attempt 2, waiting 5000 msecs before
> retrying.
> org.apache.zookeeper.KeeperException$ConnectionLossException:
> KeeperErrorCode = ConnectionLoss for
>
> /_hadoopBsp/job_201408072332_0003/_applicationAttemptsDir/0/_superstepDir/1/_workerHealthyDir/datanode1_1
>      at
> org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
>      at
> org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
>      at org.apache.zookeeper.ZooKeeper.delete(ZooKeeper.java:873)
>      at org.apache.giraph.zk.ZooKeeperExt.deleteExt(ZooKeeperExt.java:302)
>      at
>
> org.apache.giraph.worker.BspServiceWorker.unregisterHealth(BspServiceWorker.java:768)
>      at
>
> org.apache.giraph.worker.BspServiceWorker.failureCleanup(BspServiceWorker.java:782)
>      at
>
> org.apache.giraph.graph.GraphTaskManager.workerFailureCleanup(GraphTaskManager.java:900)
>      at org.apache.giraph.graph.GraphMapper.run(GraphMapper.java:100)
>      at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
>      at org.apache.hadoop.mapred.MapTask.run(MapTask.java:364)
>      at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
>      at java.security.AccessController.doPrivileged(Native Method)
>      at javax.security.auth.Subject.doAs(Subject.java:415)
>      at
>
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
>      at org.apache.hadoop.mapred.Child.main(Child.java:249)
> 2014-08-07 23:35:48,126 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server DataNode2/10.190.12.33:22181. Will not
> attempt to authenticate using SASL (unknown error)
> 2014-08-07 23:35:48,127 WARN org.apache.zookeeper.ClientCnxn: Session
> 0x147b22ebf420001 for server null, unexpected error, closing socket
> connection and attempting reconnect
> java.net.ConnectException: Connection refused
>      at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>      at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:708)
>      at
>
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>      at
> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2014-08-07 23:35:49,368 FATAL org.apache.giraph.graph.GraphMapper:
> uncaughtException: OverrideExceptionHandler on thread Thread-12, msg =
> createExt: Failed to create
> /_hadoopBsp/job_201408072332_0003/_workerProgresses/1 after 3 tries!,
> exiting...
> java.lang.IllegalStateException: createExt: Failed to create
> /_hadoopBsp/job_201408072332_0003/_workerProgresses/1 after 3 tries!
>      at org.apache.giraph.zk.ZooKeeperExt.createExt(ZooKeeperExt.java:182)
>      at
> org.apache.giraph.zk.ZooKeeperExt.createOrSetExt(ZooKeeperExt.java:247)
>      at
>
> org.apache.giraph.worker.WorkerProgress.writeToZnode(WorkerProgress.java:110)
>      at
>
> org.apache.giraph.worker.WorkerProgressWriter$1.run(WorkerProgressWriter.java:59)
>      at java.lang.Thread.run(Thread.java:724)
>
> However Giraph 1.0.0 version run without any problems.
> What might be the solution for the above errors?
>
> Any help is appreciated.
>
> Thanks
> Xenia
>

RE: giraph 1.1.0 Execution Error

Posted by "Sardeshmukh, Vivek" <vi...@uiowa.edu>.

Hi Xenia, 

I think there is some problem with Zookeeper. Can you make sure that Zookeeper server is running. If it is running then is it on port 22181? (because your Giraph job is trying to connect on this port). If Zookeeper is running on some different port then try running your Giraph job with -Dgiraph.zkList=<zookeper server ip>:<zookeeper port> 

I'm not sure whether you have to start an instance of zookeeper separately or Giraph will start one for you, I have a separate instance running on my cluster and I specify the server and port via -Dgiraph.zkList option. 

I hope that works. 

Vivek

________________________________________
From: xeniad20 <xe...@gmail.com>
Sent: Thursday, August 7, 2014 3:46 PM
To: user@giraph.apache.org
Subject: giraph 1.1.0 Execution Error

Hi experts,

I try to execute Giraph 1.1.0 on a small cluster but I have the
following Errors:

2014-08-07 23:35:46,141 INFO org.apache.zookeeper.ClientCnxn: Opening
socket connection to server DataNode2/10.190.12.33:22181. Will not
attempt to authenticate using SASL (unknown error)
2014-08-07 23:35:46,142 WARN org.apache.zookeeper.ClientCnxn: Session
0x147b22ebf420001 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:708)
     at
org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
2014-08-07 23:35:46,243 WARN org.apache.giraph.zk.ZooKeeperExt:
deleteExt: Connection loss on attempt 2, waiting 5000 msecs before retrying.
org.apache.zookeeper.KeeperException$ConnectionLossException:
KeeperErrorCode = ConnectionLoss for
/_hadoopBsp/job_201408072332_0003/_applicationAttemptsDir/0/_superstepDir/1/_workerHealthyDir/datanode1_1
     at org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
     at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
     at org.apache.zookeeper.ZooKeeper.delete(ZooKeeper.java:873)
     at org.apache.giraph.zk.ZooKeeperExt.deleteExt(ZooKeeperExt.java:302)
     at
org.apache.giraph.worker.BspServiceWorker.unregisterHealth(BspServiceWorker.java:768)
     at
org.apache.giraph.worker.BspServiceWorker.failureCleanup(BspServiceWorker.java:782)
     at
org.apache.giraph.graph.GraphTaskManager.workerFailureCleanup(GraphTaskManager.java:900)
     at org.apache.giraph.graph.GraphMapper.run(GraphMapper.java:100)
     at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
     at org.apache.hadoop.mapred.MapTask.run(MapTask.java:364)
     at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
     at java.security.AccessController.doPrivileged(Native Method)
     at javax.security.auth.Subject.doAs(Subject.java:415)
     at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
     at org.apache.hadoop.mapred.Child.main(Child.java:249)
2014-08-07 23:35:48,126 INFO org.apache.zookeeper.ClientCnxn: Opening
socket connection to server DataNode2/10.190.12.33:22181. Will not
attempt to authenticate using SASL (unknown error)
2014-08-07 23:35:48,127 WARN org.apache.zookeeper.ClientCnxn: Session
0x147b22ebf420001 for server null, unexpected error, closing socket
connection and attempting reconnect
java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:708)
     at
org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
2014-08-07 23:35:49,368 FATAL org.apache.giraph.graph.GraphMapper:
uncaughtException: OverrideExceptionHandler on thread Thread-12, msg =
createExt: Failed to create
/_hadoopBsp/job_201408072332_0003/_workerProgresses/1 after 3 tries!,
exiting...
java.lang.IllegalStateException: createExt: Failed to create
/_hadoopBsp/job_201408072332_0003/_workerProgresses/1 after 3 tries!
     at org.apache.giraph.zk.ZooKeeperExt.createExt(ZooKeeperExt.java:182)
     at
org.apache.giraph.zk.ZooKeeperExt.createOrSetExt(ZooKeeperExt.java:247)
     at
org.apache.giraph.worker.WorkerProgress.writeToZnode(WorkerProgress.java:110)
     at
org.apache.giraph.worker.WorkerProgressWriter$1.run(WorkerProgressWriter.java:59)
     at java.lang.Thread.run(Thread.java:724)

However Giraph 1.0.0 version run without any problems.
What might be the solution for the above errors?

Any help is appreciated.

Thanks
Xenia