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Posted to hdfs-dev@hadoop.apache.org by Kevin Burton <rk...@charter.net> on 2013/04/22 16:50:20 UTC
Cannot communicate
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?
Re: Cannot communicate
Posted by Kevin Burton <rk...@charter.net>.
What dependency for the Maven project should I use?
On Apr 22, 2013, at 10:02 AM, Ted Yu <yu...@gmail.com> 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 <rk...@charter.net>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?
Re: Cannot communicate
Posted by Ted Yu <yu...@gmail.com>.
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 <rk...@charter.net>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?