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From "Edward J. Yoon" <edwardy...@apache.org>
Subject Re: Why my distributed mode does not work?
Date Tue, 16 Apr 2013 21:47:25 GMT
Your version?

On Wed, Apr 17, 2013 at 12:07 AM, Lvxuedong <lxd.1990@gmail.com> wrote:
> Hi, Edward, thank you. But your suggestion seems do not work, do you have some other
advice ?
>
> Is java.lang.NullPointerException related with heap size ?
>
>
>
> 在 2013-4-16,22:13,"Edward J. Yoon" <edwardyoon@apache.org> 写道:
>
>> I guess you need to increase the child processor JVM heap size.
>>
>> - conf/hama-site.xml:
>>
>>  <property>
>>    <name>bsp.child.java.opts</name>
>>    <value>-Xmx2048m</value>
>>  </property>
>>
>> On Tue, Apr 16, 2013 at 10:55 PM, Lyu Xuedong <lxd.1990@gmail.com> wrote:
>>> My project can work well in eclipse, but when I export it as a jar file and
>>> submit it to a two-node hama cluster, some errors and fatal occur if the
>>> input file is over 64M.
>>> I suspect that my configure files of hadoop or hama is somewhere not right,
>>> but a pi estimator can run normally on my cluster and
>>> GroomServer$BSPPerChild can be seen on each nodes. I debug for a whole day,
>>> nothing improved.
>>> What in my input file are a large number of RDF triples: "<subject>
>>> <predicate> <object> ." My task is to create vertices for subjects
and
>>> objects. Predicates are subjects' edges.
>>> What should I do ?
>>>
>>> Terminal output:
>>>
>>> 13/04/16 21:13:36 INFO bgp.HamaBgpComplete: Job begain.
>>> 13/04/16 21:13:37 INFO bsp.FileInputFormat: Total input paths to process : 2
>>> 13/04/16 21:13:38 INFO bsp.BSPJobClient: Running job: job_201304161357_0015
>>> 13/04/16 21:13:41 INFO bsp.BSPJobClient: Current supersteps number: 0
>>> 13/04/16 21:13:47 INFO bsp.BSPJobClient: Current supersteps number: 2
>>> 13/04/16 21:13:53 INFO bsp.BSPJobClient: Current supersteps number: 3
>>> 13/04/16 21:13:59 INFO bsp.BSPJobClient: Current supersteps number: 4
>>> 13/04/16 21:14:05 INFO bsp.BSPJobClient: Current supersteps number: 5
>>> attempt_201304161357_0015_000000_0: 13/04/16 21:13:43 INFO
>>> sync.ZKSyncClient: Initializing ZK Sync Client
>>> attempt_201304161357_0015_000000_0: 13/04/16 21:13:43 INFO
>>> sync.ZooKeeperSyncClientImpl: Start connecting to Zookeeper! At
>>> hadoop1/1.2.3.4:61002
>>> attempt_201304161357_0015_000000_0: 13/04/16 21:13:43 INFO ipc.Server:
>>> Starting SocketReader
>>> attempt_201304161357_0015_000000_0: 13/04/16 21:13:43 INFO ipc.Server: IPC
>>> Server Responder: starting
>>> attempt_201304161357_0015_000000_0: 13/04/16 21:13:43 INFO ipc.Server: IPC
>>> Server handler 0 on 61002: starting
>>> attempt_201304161357_0015_000000_0: 13/04/16 21:13:43 INFO
>>> message.HadoopMessageManagerImpl:  BSPPeer address:hadoop1 port:61002
>>> attempt_201304161357_0015_000000_0: 13/04/16 21:13:43 INFO ipc.Server: IPC
>>> Server listener on 61002: starting
>>> attempt_201304161357_0015_000000_0: 13/04/16 21:14:03 ERROR bsp.BSPTask:
>>> Error running bsp setup and bsp function.
>>> attempt_201304161357_0015_000000_0: java.lang.NullPointerException
>>> attempt_201304161357_0015_000000_0: 13/04/16 21:14:04 INFO ipc.Server:
>>> Stopping server on 61002
>>> attempt_201304161357_0015_000000_0: 13/04/16 21:14:04 INFO ipc.Server: IPC
>>> Server handler 0 on 61002: exiting
>>> attempt_201304161357_0015_000000_0: 13/04/16 21:14:04 INFO ipc.Server:
>>> Stopping IPC Server listener on 61002
>>> attempt_201304161357_0015_000000_0: 13/04/16 21:14:04 INFO ipc.Server:
>>> Stopping IPC Server Responder
>>> attempt_201304161357_0015_000000_0: 13/04/16 21:14:04 INFO
>>> metrics.RpcInstrumentation: shut down
>>> attempt_201304161357_0015_000000_0: 13/04/16 21:14:04 ERROR bsp.BSPTask:
>>> Shutting down ping service.
>>> attempt_201304161357_0015_000000_0: 13/04/16 21:14:04 FATAL bsp.GroomServer:
>>> Error running child
>>> attempt_201304161357_0015_000000_0: java.lang.NullPointerException
>>> attempt_201304161357_0015_000000_0: java.lang.NullPointerException
>>> 13/04/16 21:15:11 INFO bsp.BSPJobClient: Job failed.
>>>
>>> tasklogs:
>>> attempt_201304161357_0015_000000_0.log
>>> 13/04/16 21:13:43 INFO sync.ZKSyncClient: Initializing ZK Sync Client
>>> 13/04/16 21:13:43 INFO sync.ZooKeeperSyncClientImpl: Start connecting to
>>> Zookeeper! At hadoop1/1.2.3.4:61002
>>> 13/04/16 21:13:43 INFO ipc.Server: Starting SocketReader
>>> 13/04/16 21:13:43 INFO ipc.Server: IPC Server Responder: starting
>>> 13/04/16 21:13:43 INFO ipc.Server: IPC Server handler 0 on 61002: starting
>>> 13/04/16 21:13:43 INFO message.HadoopMessageManagerImpl:  BSPPeer
>>> address:hadoop1 port:61002
>>> 13/04/16 21:13:43 INFO ipc.Server: IPC Server listener on 61002: starting
>>> 13/04/16 21:14:03 ERROR bsp.BSPTask: Error running bsp setup and bsp
>>> function.
>>> java.lang.NullPointerException
>>> 13/04/16 21:14:04 INFO ipc.Server: Stopping server on 61002
>>> 13/04/16 21:14:04 INFO ipc.Server: IPC Server handler 0 on 61002: exiting
>>> 13/04/16 21:14:04 INFO ipc.Server: Stopping IPC Server listener on 61002
>>> 13/04/16 21:14:04 INFO ipc.Server: Stopping IPC Server Responder
>>> 13/04/16 21:14:04 INFO metrics.RpcInstrumentation: shut down
>>> 13/04/16 21:14:04 ERROR bsp.BSPTask: Shutting down ping service.
>>> 13/04/16 21:14:04 FATAL bsp.GroomServer: Error running child
>>> java.lang.NullPointerException
>>> java.lang.NullPointerException
>>>
>>> attempt_201304161357_0015_000001_0.log
>>> 13/04/16 21:13:42 INFO sync.ZKSyncClient: Initializing ZK Sync Client
>>> 13/04/16 21:13:42 INFO sync.ZooKeeperSyncClientImpl: Start connecting to
>>> Zookeeper! At hadoop1/1.2.3.4:61001
>>> 13/04/16 21:13:42 ERROR sync.ZooKeeperSyncClientImpl:
>>> org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode =
>>> NoNode for /bsp/job_201304161357_0015/peers
>>> 13/04/16 21:13:42 INFO ipc.Server: Starting SocketReader
>>> 13/04/16 21:13:42 INFO ipc.Server: IPC Server Responder: starting
>>> 13/04/16 21:13:42 INFO message.HadoopMessageManagerImpl:  BSPPeer
>>> address:hadoop1 port:61001
>>> 13/04/16 21:13:42 INFO ipc.Server: IPC Server listener on 61001: starting
>>> 13/04/16 21:13:42 INFO ipc.Server: IPC Server handler 0 on 61001: starting
>>> 13/04/16 21:14:06 ERROR bsp.BSPPeerImpl: Error while sending messages
>>> java.io.IOException: Call to hadoop1/1.2.3.4:61002 failed on local
>>> exception: java.io.EOFException
>>>    at org.apache.hadoop.ipc.Client.wrapException(Client.java:1103)
>>>    at org.apache.hadoop.ipc.Client.call(Client.java:1071)
>>>    at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225)
>>>    at $Proxy3.put(Unknown Source)
>>>    at
>>> org.apache.hama.bsp.message.HadoopMessageManagerImpl.transfer(HadoopMessageManagerImpl.java:108)
>>>    at org.apache.hama.bsp.BSPPeerImpl.sync(BSPPeerImpl.java:410)
>>>    at org.apache.hama.graph.GraphJobRunner.bsp(GraphJobRunner.java:118)
>>>    at org.apache.hama.bsp.BSPTask.runBSP(BSPTask.java:166)
>>>    at org.apache.hama.bsp.BSPTask.run(BSPTask.java:143)
>>>    at
>>> org.apache.hama.bsp.GroomServer$BSPPeerChild.main(GroomServer.java:1266)
>>> Caused by: java.io.EOFException
>>>    at java.io.DataInputStream.readInt(DataInputStream.java:375)
>>>    at
>>> org.apache.hadoop.ipc.Client$Connection.receiveResponse(Client.java:800)
>>>    at org.apache.hadoop.ipc.Client$Connection.run(Client.java:745)
>>
>>
>>
>> --
>> Best Regards, Edward J. Yoon
>> @eddieyoon



-- 
Best Regards, Edward J. Yoon
@eddieyoon

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