://mapreduce-tutorial.blogspot.in/2011/04/custom-data-types.html
I have gone through this link.These r all new to me.
how to override those methods in writable.
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Unmesha Sreeveni U.B*
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*Amrita Center For Cyber Security
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Amritapuri.
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2d double array is a matrix.so i should be able to emit the entire matrix .
Can any one suggest how to write a custom datatype
On Tue, Oct 29, 2013 at 10:54 AM, unmesha sreeveni wrote:
>
>
> http://stackoverflow.com/questions/19602692/java-lang-classcastexception-in-hadoop-mapreduce
&g
toString();
}
Again my output is empty. 3.Inorder to emit a key too as custom datatype
CompareTo is neccessary right .
4.so what should i include in that methods CompareTo,hashcode,equals and
what are these methods intended for.
Any Idea.Pls suggest a solution.
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U
s!
> >
> > Regards,
> > Uma Maheswara Rao Gangumalla
> > On behalf of the Apache Hadoop PMC
> >
>
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*Thanks & Regards *
*Unmesha Sreeveni U.B*
*Hadoop, Bigdata Developer*
*Center for Cyber Security | Amrita Vishwa Vidyapeetham*
http://www.unmeshasreeveni.blogspot.in/
that Gera
> > Shegalov and Robert Kanter have been elected as committers on the Apache
> > Hadoop project. We appreciate all the work they have put into the project
> > so far, and look forward to their future contributions.
> >
> > Welcome, Gera and Robert!
> >
