Setting up Hardoop environment

[radhika sridhar <ra...@gmail.com>]

Hi All,

I am a Graduate student. I am working on Hadoop for a college project and
have a few question on the hardoop set up.

> I am running hadoop on windows OS with cygin installed.
> In eclipse when i open the org.apache.hadoop.example.WordCount example
> file, i see a void main written for this class.
> so i am trying to run this program from the standalone mode, by passing
> the command line arguments.
>
> 1) Will i be able to run the program this way, because i am running this
> trough the windows system. If not
> how can i do the local set up so that i can make the changes to the file
> and run them on my system to test it?
>
> 2) if i make the changes to the file ( just have added few
> System.Out.println statements) and did a jar file from the examples
> package
> and tried to run it from cygwin, again it failed telling its not able to
> fine the main class. I haven't done any other changes to this apart from
> the print statements
>
> 3) In the example program, during the configuation state, we set the input
> path for the program. Will we be able to set two or more different paths
> this way?
> That is, Suppose i have two different files to be read, say one file is
> already in memory, will i be able to set the configurations such that the
> input for the Map-Reduce is
> to read one file from the disk and read the other from the memory in the
> same Map-Reduce iteration.
Please advise as to how i can proceed from here.

-- 
Thanks,
Radhika Sridhar