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Hadoop >> mail # user >> Am i crazy? - question about hadoop streaming


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Re: Am i crazy? - question about hadoop streaming
I am sure if you ask at provider's specific list you'll get a better answer
than from common Hadoop list ;)

Cos

On Wed, Sep 14, 2011 at 09:48PM, Mark Kerzner wrote:
> Hi,
>
> I am using the latest Cloudera distribution, and with that I am able to use
> the latest Hadoop API, which I believe is 0.21, for such things as
>
> import org.apache.hadoop.mapreduce.Reducer;
>
> So I am using mapreduce, not mapred, and everything works fine.
>
> However, in a small streaming job, trying it out with Java classes first, I
> get this error
>
> Exception in thread "main" java.lang.RuntimeException: class mypackage.Map
> not org.apache.hadoop.mapred.Mapper -- which it really is not, it is a
> mapreduce.Mapper.
>
> So it seems that Cloudera backports some of the advances but for streaming
> it is still the old API.
>
> So it is me or the world?
>
> Thank you,
> Mark