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From Filipe David Manana <fdman...@apache.org>
Subject Re: hama system dir
Date Sat, 30 Oct 2010 11:35:52 GMT
Which version of Hama are you using?

For the latest, make sure your XML config has the following:

  <property>
    <name>bsp.system.dir</name>
    <value>${hadoop.tmp.dir}/bsp/system</value>
    <description>The shared directory where BSP stores control files.
    </description>
  </property>

Let us know if it fixes the issue for you.

regards

On Sat, Oct 30, 2010 at 9:24 AM, Lin Chia-Hung <clin4j@googlemail.com> wrote:
> I follow the getting started page at
> http://wiki.apache.org/hama/GettingStarted#Setting_up_Hama setting up
> the hama system, but I keep getting the following error (saying the
> system dir is null.)
>
> After checking the /tmp/hadoop-${user}/bsp/, seems like there is no
> system dir as BSPMaster contains code that would throws ioexception if
> no system dir; but even adding system folder (e.g. touch
> /tmp/hadoop-${user}/bsp/system) it still throws this error.
>
> How can I solve this problem?
>
> 2010-10-30 16:16:59,585 INFO org.apache.hama.bsp.BSPMaster: problem
> cleaning system directory: null
> java.io.IOException: Call to lab01/140.127.220.29:9000 failed on local
> exception: java.io.EOFException
>        at org.apache.hadoop.ipc.Client.wrapException(Client.java:774)
>        at org.apache.hadoop.ipc.Client.call(Client.java:742)
>        at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:220)
>        at $Proxy4.getProtocolVersion(Unknown Source)
>        at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:359)
>        at org.apache.hadoop.hdfs.DFSClient.createRPCNamenode(DFSClient.java:105)
>        at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:208)
>        at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:169)
>        at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:82)
>        at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1373)
>        at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:66)
>        at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1385)
>        at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:191)
>        at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:95)
>        at org.apache.hama.bsp.BSPMaster.<init>(BSPMaster.java:131)
>        at org.apache.hama.bsp.BSPMaster.startTracker(BSPMaster.java:237)
>        at org.apache.hama.bsp.BSPMaster.startMaster(BSPMaster.java:230)
>        at org.apache.hama.BSPMasterRunner.run(BSPMasterRunner.java:43)
>        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:53)
> Caused by: java.io.EOFException
>        at java.io.DataInputStream.readInt(DataInputStream.java:375)
>        at org.apache.hadoop.ipc.Client$Connection.receiveResponse(Client.java:501)
>        at org.apache.hadoop.ipc.Client$Connection.run(Client.java:446)
>



-- 
Filipe David Manana,
fdmanana@gmail.com, fdmanana@apache.org

"Reasonable men adapt themselves to the world.
 Unreasonable men adapt the world to themselves.
 That's why all progress depends on unreasonable men."

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