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From 顾荣 <gurongwal...@gmail.com>
Subject Re: failed to run hama pi example
Date Sun, 16 Sep 2012 15:35:01 GMT
Hi, Suraj.

I am reading the "BSP Programming
Model<https://issues.apache.org/jira/secure/attachment/12528218/ApacheHamaBSPProgrammingmodel.pdf>"
pdf in Hama wiki you introduced to me.
I wonder there is a type error in this pdf.
See the "BSPPeer<NullWritable, NullWritable, Text,
DoubleWritable,DoubleWritable> peer" in the code block in page 16. Is it
should be "BSPPeer<NullWritable, NullWritable, Text, DoubleWritable> peer" ?

BTW, this pdf file is a wonderful guide for me,thanks .

Walker.

2012/9/13 顾荣 <gurongwalker@gmail.com>

> Hi, Suraj.
>
> Thanks so much. I am just looking for the introdution material of the
> programming model and the execution mechanism in hama.You guys are so kind.
>
> Regards
> Walker.
>
>
> 2012/9/13 Suraj Menon <surajsmenon@apache.org>
>
>> Sorry Walker I am a little late in responding .. For further help you can
>> refer the PDFs here -  http://wiki.apache.org/hama/GettingStarted
>> It has installation guide and introduction to programming model. I am in
>> the process of converting it to html ebook.
>> The document contents are still evolving but the installation guide has
>> been just enough to start on Hama.
>>
>> Good luck.
>>
>> -Suraj
>>
>> On Wed, Sep 12, 2012 at 9:17 PM, Edward J. Yoon <edwardyoon@apache.org
>> >wrote:
>>
>> > No problem, walker. Thanks a lot for your feedbacks. :-)
>> >
>> > On Wed, Sep 12, 2012 at 11:11 PM, 顾荣 <gurongwalker@gmail.com> wrote:
>> > > Hi, Thomas and Edward.
>> > >
>> > > I am sry, I did not copy the Hadop jar into the Hama lib folder. So,
>> > there
>> > > comes a problem when I use hadoop 0.20.2 for Hama 0.5 at first. When I
>> > use
>> > > hadoop 1.0.3, I did not replace the hadoop jar in Hama lib either.
>> > However,
>> > > by default, Hama 0.5 contains hadoop-core-1.0.0.jar in its lib. Maybe
>> > > because hadoop 1.0.0 do not have too much difference with hadoop
>> 1.0.3 in
>> > > communication protocol, so I passed the pi example fortunately.
>> > >
>> > > By the way, I have tested that the Hama 0.5 can really works well
>>  with
>> > > Hadoop 0.20.2 after replace the hadoop jar files in ${HAMA_HOME}/lib
>> > > folder.
>> > > It makes sense. When starting, the Hama bspmaster needs to communicate
>> > the
>> > > Namenode, thus the hadoop jar it used needs  match the version of the
>> > > running HDFS. That's why it shows the error message such as can not
>> > connect
>> > > the namenode and RPC failed and so on in the log.
>> > >
>> > > During installation, I just followed the this guide
>> > > http://hama.apache.org/getting_started_with_hama.html and missed its
>> > link
>> > > page http://wiki.apache.org/hama/CompatibilityTable. Sorry again.
>> > >
>> > > Regards.
>> > > Walker.
>> > >
>> > > 2012/9/12 Thomas Jungblut <thomas.jungblut@gmail.com>
>> > >
>> > >> Hey walker,
>> > >>
>> > >> did you copy the Hadoop jar into the Hama lib folder? Otherwise I
>> can't
>> > >> explain this.
>> > >>
>> > >> 2012/9/12 Edward J. Yoon <edwardyoon@apache.org>
>> > >>
>> > >> > I'm use 0.20.2 and 0.20.2-cdh versions. There's no problem.
>> > >> >
>> > >> > Sent from my iPad
>> > >> >
>> > >> > On Sep 12, 2012, at 4:59 PM, Thomas Jungblut <
>> > thomas.jungblut@gmail.com>
>> > >> > wrote:
>> > >> >
>> > >> > > Anyone tested the compatibility to Hadoop 20.2 with Hama 0.5?
>> > >> > > [1] says it is compatible.
>> > >> > >
>> > >> > > [1] http://wiki.apache.org/hama/CompatibilityTable
>> > >> > >
>> > >> > > 2012/9/12 顾荣 <gurongwalker@gmail.com>
>> > >> > >
>> > >> > >> Okay, I'll try Hadoop 1.0.3 with Hama 0.50.
>> > >> > >> Thanks Thomas. I can't wait to explore the Hama world now.
>> > >> > >>
>> > >> > >> walker.
>> > >> > >>
>> > >> > >> 2012/9/12 Thomas Jungblut <thomas.jungblut@gmail.com>
>> > >> > >>
>> > >> > >>> 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
>> > >> > >>>>>>>>
>> > >> > >>>>>>>
>> > >> > >>>>>>>
>> > >> > >>>>>>
>> > >> > >>>>>
>> > >> > >>>>
>> > >> > >>>
>> > >> > >>
>> > >> >
>> > >>
>> >
>> >
>> >
>> > --
>> > Best Regards, Edward J. Yoon
>> > @eddieyoon
>> >
>>
>
>

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