Check this out:
http://developer.yahoo.com/hadoop/tutorial/module5.html#writable-notes
It shows how to create a customer writable. If you have "hadoop the
definitive guide" there is a really good explanation about custom data
types.
Happy Halloween
On Thu, Oct 31, 2013 at 3:03 PM, unmesha sreev
this is my post from stackoverflow
but i am not getting any response.
I need to emit a 2D double array as key and value from mapper.There are
questions posted in stackoverflow. But they are not answered.
we have to create a custom datatype.but how?I am new to these custom
datatypes. i dnt have an