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From: Kevin Burton <rkevinburton@charter.net>
Subject: Re: Cannot communicate
Date: Mon, 22 Apr 2013 11:17:39 -0500
To: "hdfs-dev@hadoop.apache.org" <hdfs-dev@hadoop.apache.org>

What dependency for the Maven project should I use?

On Apr 22, 2013, at 10:02 AM, Ted Yu <yuzhihong@gmail.com> wrote:

> The exception was due to incompatible RPC versions between Apache maven
> artifacts and CDH4.
>=20
> I suggest you build the project with same hadoop version as in your cluste=
r.
>=20
> On Mon, Apr 22, 2013 at 7:50 AM, Kevin Burton <rkevinburton@charter.net>wr=
ote:
>=20
>> I am relatively new to Hadoop and am working through a Manning publicatio=
n
>> "Hadoop in Action". One of the first program in the book (page 44) gives m=
e
>> a Java exception: org.apache.hadoop.ipc.RemoteException: Server IPC versi=
on
>> 7 cannot communicate with client version 3.
>>=20
>> My Hadoop distribution is CDH4. The Java Maven project takes its
>> dependency from Apache. The exception comes from a line involving the
>> "Configuration" class.
>>=20
>> Any idea on how to avoid this exception?