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From Thomas Jungblut <thomas.jungb...@gmail.com>
Subject Re: failed to run hama pi example
Date Wed, 12 Sep 2012 07:22:49 GMT
oh okay. I'm not sure if 0.5.0 is really compatible to 20.2, personally I
have installed 1.0.3 and it works fine.
Sorry to let you install all the different versions.

2012/9/12 顾荣 <gurongwalker@gmail.com>

> Thanks Thomas. The HDFS works well. I even put a file from local to it
> successfully. It absolutely left the safemode. The namenode starting log is
> as below:
>
> 2012-09-12 15:10:39,002 INFO
> org.apache.hadoop.hdfs.server.namenode.NameNode: STARTUP_MSG:
> /************************************************************
> STARTUP_MSG: Starting NameNode
> STARTUP_MSG:   host = slave021/192.168.1.21
> STARTUP_MSG:   args = []
> STARTUP_MSG:   version = 0.20.2
> STARTUP_MSG:   build =
> https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.20 -r
> 911707; compiled by 'chrisdo' on Fri Feb 19 08:07:34 UTC 2010
> ************************************************************/
> 2012-09-12 15:10:39,092 INFO org.apache.hadoop.ipc.metrics.RpcMetrics:
> Initializing RPC Metrics with hostName=NameNode, port=54310
> 2012-09-12 15:10:39,098 INFO
> org.apache.hadoop.hdfs.server.namenode.NameNode: Namenode up at: slave021/
> 192.168.1.21:54310
> 2012-09-12 15:10:39,100 INFO org.apache.hadoop.metrics.jvm.JvmMetrics:
> Initializing JVM Metrics with processName=NameNode, sessionId=null
> 2012-09-12 15:10:39,101 INFO
> org.apache.hadoop.hdfs.server.namenode.metrics.NameNodeMetrics:
> Initializing NameNodeMeterics using context
> object:org.apache.hadoop.metrics.spi.NullContext
> 2012-09-12 15:10:39,143 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem:
> fsOwner=hadoop,hadoop_user,wheel
> 2012-09-12 15:10:39,144 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: supergroup=supergroup
> 2012-09-12 15:10:39,144 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem:
> isPermissionEnabled=true
> 2012-09-12 15:10:39,150 INFO
> org.apache.hadoop.hdfs.server.namenode.metrics.FSNamesystemMetrics:
> Initializing FSNamesystemMetrics using context
> object:org.apache.hadoop.metrics.spi.NullContext
> 2012-09-12 15:10:39,151 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Registered
> FSNamesystemStatusMBean
> 2012-09-12 15:10:39,177 INFO org.apache.hadoop.hdfs.server.common.Storage:
> Number of files = 1
> 2012-09-12 15:10:39,181 INFO org.apache.hadoop.hdfs.server.common.Storage:
> Number of files under construction = 0
> 2012-09-12 15:10:39,181 INFO org.apache.hadoop.hdfs.server.common.Storage:
> Image file of size 96 loaded in 0 seconds.
> 2012-09-12 15:10:39,181 INFO org.apache.hadoop.hdfs.server.common.Storage:
> Edits file
> /home/hadoop/gurong/hadoop-0.20.2/hadoop_dir/dfs/name/current/edits of size
> 4 edits # 0 loaded in 0 seconds.
> 2012-09-12 15:10:39,236 INFO org.apache.hadoop.hdfs.server.common.Storage:
> Image file of size 96 saved in 0 seconds.
> 2012-09-12 15:10:39,439 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Finished loading
> FSImage in 312 msecs
> 2012-09-12 15:10:39,441 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Total number of blocks
> = 0
> 2012-09-12 15:10:39,441 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Number of invalid
> blocks = 0
> 2012-09-12 15:10:39,441 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Number of
> under-replicated blocks = 0
> 2012-09-12 15:10:39,441 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Number of
> over-replicated blocks = 0
> 2012-09-12 15:10:39,441 INFO org.apache.hadoop.hdfs.StateChange: STATE*
> Leaving safe mode after 0 secs.
> 2012-09-12 15:10:39,441 INFO org.apache.hadoop.hdfs.StateChange: STATE*
> Network topology has 0 racks and 0 datanodes
> 2012-09-12 15:10:39,441 INFO org.apache.hadoop.hdfs.StateChange: STATE*
> UnderReplicatedBlocks has 0 blocks
> 2012-09-12 15:10:39,554 INFO org.mortbay.log: Logging to
> org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via
> org.mortbay.log.Slf4jLog
> 2012-09-12 15:10:39,603 INFO org.apache.hadoop.http.HttpServer: Port
> returned by webServer.getConnectors()[0].getLocalPort() before open() is
> -1. Opening the listener on 50070
> 2012-09-12 15:10:39,604 INFO org.apache.hadoop.http.HttpServer:
> listener.getLocalPort() returned 50070
> webServer.getConnectors()[0].getLocalPort() returned 50070
> 2012-09-12 15:10:39,604 INFO org.apache.hadoop.http.HttpServer: Jetty bound
> to port 50070
> 2012-09-12 15:10:39,604 INFO org.mortbay.log: jetty-6.1.14
> 2012-09-12 15:10:48,662 INFO org.mortbay.log: Started
> SelectChannelConnector@0.0.0.0:50070
> 2012-09-12 15:10:48,663 INFO
> org.apache.hadoop.hdfs.server.namenode.NameNode: Web-server up at:
> 0.0.0.0:50070
> 2012-09-12 15:10:48,666 INFO org.apache.hadoop.ipc.Server: IPC Server
> listener on 54310: starting
> 2012-09-12 15:10:48,667 INFO org.apache.hadoop.ipc.Server: IPC Server
> Responder: starting
> 2012-09-12 15:10:48,668 INFO org.apache.hadoop.ipc.Server: IPC Server
> handler 0 on 54310: starting
> 2012-09-12 15:10:48,668 INFO org.apache.hadoop.ipc.Server: IPC Server
> handler 1 on 54310: starting
> 2012-09-12 15:10:48,668 INFO org.apache.hadoop.ipc.Server: IPC Server
> handler 2 on 54310: starting
> 2012-09-12 15:10:48,668 INFO org.apache.hadoop.ipc.Server: IPC Server
> handler 3 on 54310: starting
> 2012-09-12 15:10:48,668 INFO org.apache.hadoop.ipc.Server: IPC Server
> handler 4 on 54310: starting
> 2012-09-12 15:10:48,669 INFO org.apache.hadoop.ipc.Server: IPC Server
> handler 5 on 54310: starting
> 2012-09-12 15:10:48,669 INFO org.apache.hadoop.ipc.Server: IPC Server
> handler 6 on 54310: starting
> 2012-09-12 15:10:48,669 INFO org.apache.hadoop.ipc.Server: IPC Server
> handler 7 on 54310: starting
> 2012-09-12 15:10:48,669 INFO org.apache.hadoop.ipc.Server: IPC Server
> handler 8 on 54310: starting
> 2012-09-12 15:10:48,669 INFO org.apache.hadoop.ipc.Server: IPC Server
> handler 9 on 54310: starting
> 2012-09-12 15:10:48,700 INFO org.apache.hadoop.ipc.Server: Error register
> getProtocolVersion
> java.lang.IllegalArgumentException: Duplicate
> metricsName:getProtocolVersion
>     at
> org.apache.hadoop.metrics.util.MetricsRegistry.add(MetricsRegistry.java:53)
>     at
>
> org.apache.hadoop.metrics.util.MetricsTimeVaryingRate.<init>(MetricsTimeVaryingRate.java:89)
>     at
>
> org.apache.hadoop.metrics.util.MetricsTimeVaryingRate.<init>(MetricsTimeVaryingRate.java:99)
>     at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:523)
>     at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:959)
>     at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:955)
>     at java.security.AccessController.doPrivileged(Native Method)
>     at javax.security.auth.Subject.doAs(Subject.java:416)
>     at org.apache.hadoop.ipc.Server$Handler.run(Server.java:953)
> 2012-09-12 15:11:05,298 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
> NameSystem.registerDatanode: node registration from
> 192.168.1.21:50010storage
> DS-1416037815-192.168.1.21-50010-1347433865293
> 2012-09-12 15:11:05,300 INFO org.apache.hadoop.net.NetworkTopology: Adding
> a new node: /default-rack/192.168.1.21:50010
> 2012-09-12 15:11:15,069 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.audit:
> ugi=webuser,webgroup    ip=/192.168.1.21    cmd=listStatus    src=/
> dst=null    perm=null
> 2012-09-12 15:12:05,034 WARN org.apache.hadoop.ipc.Server: Incorrect header
> or version mismatch from 192.168.1.21:56281 got version 4 expected
> version 3
> 2012-09-12 15:14:51,535 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.audit:
> ugi=hadoop,hadoop_user,wheel    ip=/192.168.1.21    cmd=listStatus
> src=/    dst=null    perm=null
> 2012-09-12 15:15:10,158 INFO
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Number of
> transactions: 2 Total time for transactions(ms): 0Number of transactions
> batched in Syncs: 0 Number of syncs: 0 SyncTimes(ms): 0
>
> I used Hama 0.5 and hadoop 0.20.2. Has somebody test this match can work
> well?
>
> thanks very much.
>
> walker
>
> 2012/9/12 Thomas Jungblut <thomas.jungblut@gmail.com>
>
> > Still it says:
> > >
> > > " 2012-09-12 14:41:16,218 ERROR org.apache.hama.bsp.BSPMaster: Can't
> get
> > > connection to Hadoop Namenode! "
> >
> >
> > Can you verify that the namenode is not in safemode and has correctly
> > started up?
> > Have a look into the namenode logs please!
> >
> > 2012/9/12 顾荣 <gurongwalker@gmail.com>
> >
> > > By the way, the fs.default.name is 192.168.1.21:54310. I checked the
> > HDFS,
> > > it works well. I installed and ran both HDFS and Hama using the same
> > linux
> > > account.
> > >
> > > 2012/9/12 顾荣 <gurongwalker@gmail.com>
> > >
> > > > Thanks so much, Edward.
> > > >
> > > > I fellowed your suggestion and instanlled a hadoop 0.20.2 instead for
> > > > Hama. However, this time when I start Hama, a fatal happened and the
> > > > bspmaster daemon can not start up. The corresponding error message in
> > the
> > > > baspmaster log file shows as below.
> > > >
> > > > ************************************************************/
> > > > 2012-09-12 14:40:38,238 INFO org.apache.hama.BSPMasterRunner:
> > > STARTUP_MSG:
> > > > /************************************************************
> > > > STARTUP_MSG: Starting BSPMaster
> > > > STARTUP_MSG:   host = slave021/192.168.1.21
> > > > STARTUP_MSG:   args = []
> > > > STARTUP_MSG:   version = 1.0.0
> > > > STARTUP_MSG:   build =
> > > > https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1.0-r
> > > > 1214675; compiled by 'hortonfo' on Fri Dec 16 20:01:27 UTC 2011
> > > > ************************************************************/
> > > > 2012-09-12 14:40:38,414 INFO org.apache.hama.bsp.BSPMaster: RPC
> > > BSPMaster:
> > > > host slave021 port 40000
> > > > 2012-09-12 14:40:38,502 INFO org.apache.hadoop.ipc.Server: Starting
> > > > SocketReader
> > > > 2012-09-12 14:40:38,542 INFO org.mortbay.log: Logging to
> > > > org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via
> > > > org.mortbay.log.Slf4jLog
> > > > 2012-09-12 14:40:38,583 INFO org.apache.hama.http.HttpServer: Port
> > > > returned by webServer.getConnectors()[0].getLocalPort() before open()
> > is
> > > > -1. Opening the listener on 40013
> > > > 2012-09-12 14:40:38,584 INFO org.apache.hama.http.HttpServer:
> > > > listener.getLocalPort() returned 40013
> > > > webServer.getConnectors()[0].getLocalPort() returned 40013
> > > > 2012-09-12 14:40:38,584 INFO org.apache.hama.http.HttpServer: Jetty
> > bound
> > > > to port 40013
> > > > 2012-09-12 14:40:38,584 INFO org.mortbay.log: jetty-6.1.14
> > > > 2012-09-12 14:40:38,610 INFO org.mortbay.log: Extract
> > > >
> > >
> >
> jar:file:/home/hadoop/hama_installs/hama-0.5.0/hama-core-0.5.0.jar!/webapp/bspmaster/
> > > > to /tmp/Jetty_slave021_40013_bspmaster____.1tzgsz/webapp
> > > > 2012-09-12 14:41:16,073 INFO org.mortbay.log: Started
> > > > SelectChannelConnector@slave021:40013
> > > > 2012-09-12 14:41:16,218 ERROR org.apache.hama.bsp.BSPMaster: Can't
> get
> > > > connection to Hadoop Namenode!
> > > > java.io.IOException: Call to /192.168.1.21:54310 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 $Proxy5.getProtocolVersion(Unknown Source)
> > > >     at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:396)
> > > >     at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:379)
> > > >     at
> > > >
> org.apache.hadoop.hdfs.DFSClient.createRPCNamenode(DFSClient.java:119)
> > > >     at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:238)
> > > >     at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:203)
> > > >     at
> > > >
> > >
> >
> org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:89)
> > > >     at
> > > >
> org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1386)
> > > >     at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:66)
> > > >     at
> org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1404)
> > > >     at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:254)
> > > >     at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:123)
> > > >     at org.apache.hama.bsp.BSPMaster.<init>(BSPMaster.java:299)
> > > >     at org.apache.hama.bsp.BSPMaster.startMaster(BSPMaster.java:454)
> > > >     at org.apache.hama.bsp.BSPMaster.startMaster(BSPMaster.java:449)
> > > >     at org.apache.hama.BSPMasterRunner.run(BSPMasterRunner.java:46)
> > > >     at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
> > > >     at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
> > > >     at org.apache.hama.BSPMasterRunner.main(BSPMasterRunner.java:56)
> > > > Caused by: java.io.EOFException
> > > >     at java.io.DataInputStream.readInt(DataInputStream.java:392)
> > > >     at
> > > >
> > org.apache.hadoop.ipc.Client$Connection.receiveResponse(Client.java:800)
> > > >     at org.apache.hadoop.ipc.Client$Connection.run(Client.java:745)
> > > > 2012-09-12 14:41:16,222 FATAL org.apache.hama.BSPMasterRunner:
> > > > java.lang.NullPointerException
> > > >     at org.apache.hama.bsp.BSPMaster.getSystemDir(BSPMaster.java:862)
> > > >     at org.apache.hama.bsp.BSPMaster.<init>(BSPMaster.java:308)
> > > >     at org.apache.hama.bsp.BSPMaster.startMaster(BSPMaster.java:454)
> > > >     at org.apache.hama.bsp.BSPMaster.startMaster(BSPMaster.java:449)
> > > >     at org.apache.hama.BSPMasterRunner.run(BSPMasterRunner.java:46)
> > > >     at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
> > > >     at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
> > > >     at org.apache.hama.BSPMasterRunner.main(BSPMasterRunner.java:56)
> > > >
> > > > 2012-09-12 14:41:16,223 INFO org.apache.hama.BSPMasterRunner:
> > > > SHUTDOWN_MSG:
> > > > /************************************************************
> > > > SHUTDOWN_MSG: Shutting down BSPMaster at slave021/192.168.1.21
> > > > ************************************************************/
> > > >
> > > > Would please give me some tips again?
> > > >
> > > > Thanks,again.
> > > >
> > > > walker
> > > >
> > > > 2012/9/12 Edward J. Yoon <edwardyoon@apache.org>
> > > >
> > > > Unfortunately we don't support Hadoop secure version yet.
> > > >>
> > > >> Instead of 0.20.205, Please use hadoop non-secure 0.20.2 or 1.0.3
> > > >> versions.
> > > >>
> > > >> Thanks.
> > > >>
> > > >> On Wed, Sep 12, 2012 at 11:25 AM, 顾荣 <gurongwalker@gmail.com>
> wrote:
> > > >> > Hi,all.
> > > >> >
> > > >> > I set up a hama cluster of 3 nodes and start hama successfully.
> > > However,
> > > >> > when I run the pi example, the job failed with a very strange
> > message
> > > as
> > > >> > below.
> > > >> >
> > > >> >  hama jar
> > > /home/hadoop/hama_installs/hama-0.5.0/hama-examples-0.5.0.jar
> > > >> pi
> > > >> > org.apache.hadoop.ipc.RemoteException: java.io.IOException:
> > > >> > java.lang.NoSuchMethodException:
> > > >> >
> > > org.apache.hadoop.hdfs.protocol.ClientProtocol.create(java.lang.String,
> > > >> > org.apache.hadoop.fs.permission.FsPermission, java.lang.String,
> > > boolean,
> > > >> > boolean, short, long)
> > > >> >     at java.lang.Class.getMethod(Class.java:1605)
> > > >> >     at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:557)
> > > >> >     at
> org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1388)
> > > >> >     at
> org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1384)
> > > >> >     at java.security.AccessController.doPrivileged(Native Method)
> > > >> >     at javax.security.auth.Subject.doAs(Subject.java:396)
> > > >> >     at
> > > >> >
> > > >>
> > >
> >
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
> > > >> >     at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1382)
> > > >> >
> > > >> >     at org.apache.hadoop.ipc.Client.call(Client.java:1066)
> > > >> >     at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225)
> > > >> >     at $Proxy2.create(Unknown Source)
> > > >> >     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > > >> >     at
> > > >> >
> > > >>
> > >
> >
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> > > >> >     at
> > > >> >
> > > >>
> > >
> >
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> > > >> >     at java.lang.reflect.Method.invoke(Method.java:616)
> > > >> >     at
> > > >> >
> > > >>
> > >
> >
> org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:82)
> > > >> >     at
> > > >> >
> > > >>
> > >
> >
> org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:59)
> > > >> >     at $Proxy2.create(Unknown Source)
> > > >> >     at
> > > >> >
> > > >>
> > >
> >
> org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.<init>(DFSClient.java:3245)
> > > >> >     at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:713)
> > > >> >     at
> > > >> >
> > > >>
> > >
> >
> org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:182)
> > > >> >     at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:555)
> > > >> >     at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:536)
> > > >> >     at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:443)
> > > >> >     at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:229)
> > > >> >     at
> > > >> >
> > > org.apache.hadoop.fs.FileSystem.copyFromLocalFile(FileSystem.java:1195)
> > > >> >     at
> > > >> >
> > > org.apache.hadoop.fs.FileSystem.copyFromLocalFile(FileSystem.java:1171)
> > > >> >     at
> > > >> >
> > > org.apache.hadoop.fs.FileSystem.copyFromLocalFile(FileSystem.java:1143)
> > > >> >     at
> > > >> >
> > > >>
> > >
> org.apache.hama.bsp.BSPJobClient.submitJobInternal(BSPJobClient.java:349)
> > > >> >     at
> > > org.apache.hama.bsp.BSPJobClient.submitJob(BSPJobClient.java:294)
> > > >> >     at org.apache.hama.bsp.BSPJob.submit(BSPJob.java:218)
> > > >> >     at
> org.apache.hama.bsp.BSPJob.waitForCompletion(BSPJob.java:225)
> > > >> >     at
> > org.apache.hama.examples.PiEstimator.main(PiEstimator.java:139)
> > > >> >     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > > >> >     at
> > > >> >
> > > >>
> > >
> >
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> > > >> >     at
> > > >> >
> > > >>
> > >
> >
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> > > >> >     at java.lang.reflect.Method.invoke(Method.java:616)
> > > >> >     at
> > > >> >
> > > >>
> > >
> >
> org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
> > > >> >     at
> > > >> org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
> > > >> >     at
> > > >> org.apache.hama.examples.ExampleDriver.main(ExampleDriver.java:39)
> > > >> >     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > > >> >     at
> > > >> >
> > > >>
> > >
> >
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> > > >> >     at
> > > >> >
> > > >>
> > >
> >
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> > > >> >     at java.lang.reflect.Method.invoke(Method.java:616)
> > > >> >     at org.apache.hama.util.RunJar.main(RunJar.java:147)
> > > >> >
> > > >> > My hama verison is 0.5 and hadoop version is 0.20.205. This error
> > > seems
> > > >> to
> > > >> > comes from the
> > "org.apache.hadoop.hdfs.protocol.ClientProtocol.create"
> > > >> > method, this is a normal method. I am kind of confused...
> > > >> >
> > > >> > Thanks in advance.
> > > >> >
> > > >> > walker
> > > >>
> > > >>
> > > >>
> > > >> --
> > > >> Best Regards, Edward J. Yoon
> > > >> @eddieyoon
> > > >>
> > > >
> > > >
> > >
> >
>

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