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From Sebastian Schelter <...@apache.org>
Subject Re: IPC error
Date Mon, 20 Feb 2012 23:57:54 GMT
This looks like the code tries to invoke a no-arg constructor of
ArrayWritable (which doesn't exist AFAIK). Do you use a custom
writable? It needs to have a working no-arg constructor.

--sebastian

2012/2/21 Avery Ching <aching@apache.org>:
> I wonder if Giraph is compiled with the correct Hadoop version?  What is the
> Hadoop version you're using?
>
> Avery
>
>
> On 2/20/12 3:41 PM, David Garcia wrote:
>>
>> Hello all,  I'm getting this error and I'm pretty sure that I have my
>> class path stuff setup right. . .maybe not.
>>
>> ERROR org.apache.giraph.comm.BasicRPCCommunications:
>> org.apache.hadoop.ipc.RemoteException: IPC server unable to read call
>> parameters: java.lang.NoSuchMethodException:
>> org.apache.hadoop.io.ArrayWritable.<init>()
>> Any ideas?  This is on super step 0.
>> -David
>
>

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