Hello!

I try to get the tutorial of pig0.7.0 running in mapreduce mode. But I
always get IOExceptions. Looking into the HDFS-Logfiles I found a
message "Incorrect header or version mismatch from ... got version2
expected version 3". I don't know what to do. Is it a bug in the tutorial?

For completness: I'm running Hadoop Version 0.20.2 in a clustered setup.

Thanks, Rico.

Pig 0.7 is compatible with hadoop 0.20.x, so I am not sure why you are
seeing this error.

You can try creating a pig jar without hadoop and specify the hadoop jar
used for your cluster in classpath -

svn co http://svn.apache.org/repos/asf/hadoop/pig/branches/branch-0.7
cd branch-0.7
ant jar-withouthadoop
ls pig-withouthadoop.jar #use this jar
Please let us know if this fixed your problem.

-Thejas

On 8/16/10 1:52 AM, "Rico Bergmann" <[EMAIL PROTECTED]>
wrote:

> Hello!
>
> I try to get the tutorial of pig0.7.0 running in mapreduce mode. But I
> always get IOExceptions. Looking into the HDFS-Logfiles I found a
> message "Incorrect header or version mismatch from ... got version2
> expected version 3". I don't know what to do. Is it a bug in the tutorial?
>
> For completness: I'm running Hadoop Version 0.20.2 in a clustered setup.
>
> Thanks, Rico.
>
>

Thanks for the advise. It worked.

Kind regards, Rico.
Thejas M Nair wrote:
> Pig 0.7 is compatible with hadoop 0.20.x, so I am not sure why you are
> seeing this error.
>
> You can try creating a pig jar without hadoop and specify the hadoop jar
> used for your cluster in classpath -
>
> svn co http://svn.apache.org/repos/asf/hadoop/pig/branches/branch-0.7
> cd branch-0.7
> ant jar-withouthadoop
> ls pig-withouthadoop.jar #use this jar
>
>
> Please let us know if this fixed your problem.
>
> -Thejas
>
>
>
> On 8/16/10 1:52 AM, "Rico Bergmann" <[EMAIL PROTECTED]>
> wrote:
>
>  
>> Hello!
>>
>> I try to get the tutorial of pig0.7.0 running in mapreduce mode. But I
>> always get IOExceptions. Looking into the HDFS-Logfiles I found a
>> message "Incorrect header or version mismatch from ... got version2
>> expected version 3". I don't know what to do. Is it a bug in the tutorial?
>>
>> For completness: I'm running Hadoop Version 0.20.2 in a clustered setup.
>>
>> Thanks, Rico.
>>
>>
>>    
>
>
>  

--
Rico Bergmann

Research Assistant

Humboldt-Universitaet zu Berlin
Institut fuer Informatik
Rudower Chaussee 25

12489 Berlin

Raum  IV.222