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HDFS, mail # dev - Cannot communicate


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Re: Cannot communicate
Kevin Burton 2013-04-22, 16:17
What dependency for the Maven project should I use?

On Apr 22, 2013, at 10:02 AM, Ted Yu <[EMAIL PROTECTED]> wrote:

> The exception was due to incompatible RPC versions between Apache maven
> artifacts and CDH4.
>
> I suggest you build the project with same hadoop version as in your cluster.
>
> On Mon, Apr 22, 2013 at 7:50 AM, Kevin Burton <[EMAIL PROTECTED]>wrote:
>
>> I am relatively new to Hadoop and am working through a Manning publication
>> "Hadoop in Action". One of the first program in the book (page 44) gives me
>> a Java exception: org.apache.hadoop.ipc.RemoteException: Server IPC version
>> 7 cannot communicate with client version 3.
>>
>> My Hadoop distribution is CDH4. The Java Maven project takes its
>> dependency from Apache. The exception comes from a line involving the
>> "Configuration" class.
>>
>> Any idea on how to avoid this exception?