Hi, you should create a custom data type, which contains two of the DoubleArrayWritable instances. This custom data type idea is also explained here: http://my.safaribooksonline.com/book/-/9781849517287/4dot-developing-complex-hadoop-mapreduce-applications/ch04s03_html
Good luck. Mirko 2013/10/28 unmesha sreeveni <[email protected]> > > http://stackoverflow.com/questions/19602692/java-lang-classcastexception-in-hadoop-mapreduce > > I tried out, but it is not working. > > I was able to emit 1 2D array..but When i cross checked once more, i am > not able to print the matrix(2D array) in reducer. > > Can anyone suggest me a gud way to emit 2 Matrices from mapper. > > > > -- > *Thanks & Regards* > * > * > Unmesha Sreeveni U.B* > * > *Junior Developer > * > *Amrita Center For Cyber Security > * > * > Amritapuri. > > www.amrita.edu/cyber/ > * >
