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From Sean Owen <>
Subject Re: Installing mahout on a cluster of Linux VM's Examples not compiling
Date Fri, 10 Jun 2011 15:59:12 GMT
Nope, you never have to install client code on a Hadoop node. Hadoop sends
all the code that is needed to the workers.
However, you have to give it all the code it needs to run. I am guess you
are not using the "job" files, but rather just one of the Mahout jar files.
That alone doesn't have what you need. Try the core "job" file.

On Fri, Jun 10, 2011 at 4:47 PM, Walshe, Maurice (RBI-UK) <> wrote:

> Hi All
> Been banging my head against getting mahout 0.50 installed on my test
> cluster the examples just wont compile and when I try the precompiled
> kmeans the map completes but the reducer fails with a java exception.
>  java.lang.ClassNotFoundException: org.apache.mahout.math.Vector
> ???
> I Just thought do you have to install mahout on all the task tracker
> nodes ? the instructions dont explicitly say so but the writer may have
> assumed that every one knew this.
> Rgds Maurice
> Ps Hosts are windows xp and using vmware player with ubuntu 10.10 as
> guest operating system
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