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From Efi <kalti...@lab.grid.auth.gr>
Subject ERROR org.apache.hama.bsp.BSPMaster: Can't get connection to Hadoop Namenode!,org.apache.hadoop.ipc.RemoteException: Server IPC version 7 cannot communicate with client version 4
Date Fri, 24 Jan 2014 10:56:24 GMT
Greeting,

I recently tried to install hama-0.6.3 to a hadoop cluster,and I get the 
error mentioned in the subject of the email
The hadoop version is CDH 4.3.0
The HDFS version is  2
I set the HAMA_HOME in hama-env to: /usr/lib/hama
The install directory for hama
I followed the install instructions mentioned here 
http://people.apache.org/~tjungblut/downloads/hamadocs/ApacheHamaInstallationGuide_06.pdf

When I run the start-bspd.sh i get this output in the bspmaster log file:

2014-01-24 11:57:57,204 INFO org.apache.hama.BSPMasterRunner: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting BSPMaster
STARTUP_MSG:   host = master01.hadoop/172.16.20.2
STARTUP_MSG:   args = []
STARTUP_MSG:   version = 1.2.0
STARTUP_MSG:   build = 
https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1.2 -r 
1479473; compiled by 'hortonfo' on Mon May  6 18:29:07 UTC 2013
STARTUP_MSG:   java = 1.6.0_24
************************************************************/
2014-01-24 11:57:57,399 INFO org.apache.hama.bsp.BSPMaster: RPC 
BSPMaster: host master01.hadoop port 40000
2014-01-24 11:57:57,497 INFO org.apache.hama.ipc.Server: Starting Socket 
Reader #1 for port 40000
2014-01-24 11:57:57,536 INFO org.mortbay.log: Logging to 
org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via 
org.mortbay.log.Slf4jLog
2014-01-24 11:57:57,585 INFO org.apache.hama.http.HttpServer: Port 
returned by webServer.getConnectors()[0].getLocalPort() before open() is 
-1. Opening the listener on 40013
2014-01-24 11:57:57,586 INFO org.apache.hama.http.HttpServer: 
listener.getLocalPort() returned 40013 
webServer.getConnectors()[0].getLocalPort() returned 40013
2014-01-24 11:57:57,587 INFO org.apache.hama.http.HttpServer: Jetty 
bound tat org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
         at 
org.apache.hama.BSPMasterRunner.main(BSPMasterRunner.java:56)o port 40013
2014-01-24 11:57:57,587 INFO org.mortbay.log: jetty-6.1.14
2014-01-24 11:57:57,616 INFO org.mortbay.log: Extract 
jar:file:/usr/lib/hama/hama-core-0.6.3.jar!/webapp/bspmaster/ to 
/tmp/Jetty_master01_hadoop_40013_bspmaster____.9m750a/webapp
2014-01-24 11:57:57,870 INFO org.mortbay.log: Started 
SelectChannelConnector@master01.hadoop:40013
2014-01-24 11:57:57,999 ERROR org.apache.hama.bsp.BSPMaster: Can't get 
connection to Hadoop Namenode!
org.apache.hadoop.ipc.RemoteException: Server IPC version 7 cannot 
communicate with client version 4
         at org.apache.hadoop.ipc.Client.call(Client.java:1107)
         at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:229)
         at sun.proxy.$Proxy5.getProtocolVersion(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:85)
         at 
org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:62)
         at sun.proxy.$Proxy5.getProtocolVersion(Unknown Source)
         at org.apache.hadoop.ipc.RPC.checkVersion(RPC.java:422)
         at 
org.apache.hadoop.hdfs.DFSClient.createNamenode(DFSClient.java:183)
         at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:281)
         at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:245)
         at 
org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:100)
         at 
org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1437)
         at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:66)
         at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1455)
         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:317)
         at org.apache.hama.bsp.BSPMaster.startMaster(BSPMaster.java:489)
         at org.apache.hama.bsp.BSPMaster.startMaster(BSPMaster.java:475)
         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)

Any advice on what to do next? Thanks in advance
Regards,
Efi

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