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Re: Cannot communicate

I am on a Ubuntu server. When I go to the link you provided there is a
hyperlink for Ubuntu but it seems like it is the main site. I tried
searching for hadoop native but didn't get any useful results. Is there
some other package that I should install using apt-get?

On Mon, Apr 22, 2013 at 12:02 PM, Vinod Kumar Vavilapalli wrote:

It means what it says: that hadoop native library isn't available for
some reason. See

+Vinod Kumar Vavilapalli
Hortonworks Inc.
http://hortonworks.com/ <http://hortonworks.com/>  

On Apr 22, 2013, at 9:58 AM, [EMAIL PROTECTED]
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<javascript:parent.wgMail.openComposeWindow('[EMAIL PROTECTED]')>

> I was able to add the appropriate Maven dependencies and it "works". I
> have one last question on this thread. With the added dependencies I
> am getting the warning:
> 13/04/22 11:53:18 WARN util.NativeCodeLoader: Unable to load
> native-hadoop library for your platform... using builtin-java classes
> where applicable
> What does this mean? Can it be avoided?
> Thanks again.
> On Mon, Apr 22, 2013 at 11:17 AM, Kevin Burton wrote:
>> What dependency for the Maven project should I use?
>> On Apr 22, 2013, at 10:02 AM, Ted Yu <[EMAIL PROTECTED]
>> <javascript:parent.wgMail.openComposeWindow('[EMAIL PROTECTED]')>  
>> <javascript:parent.wgMail.openComposeWindow('[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
>>> <javascript:parent.wgMail.openComposeWindow('[EMAIL PROTECTED]')>
>>> <javascript:parent.wgMail.openComposeWindow('[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?