RPC issues..!!

[Sugandha Naolekar <su...@gmail.com>]

Hello!!


I have a 7 node cluster. In which, 3 machines are individually dedicated for
namenode,secondaryNN and Jobtracker and the other 4 are datanodes. Now, I
want to transfer files and dump them into HDFS on the click of a button. For
that purpose, I will have to write a code(preferably java code).

-> Now, there are few files that are located in one of the datanodes or
somewhere else in the cluster?(irrespective). So, Will I have to handle RPC
issues for it? Will I have to get the proxy of it and do all that stuff?

This was the first case.

-> Second case is such::
    Now the file transfer shoud between the node that's remote(not a part of
hadoop cluster) or master/slave config file). Now, in this case, will I have
to install hadoop on that node?

My question seems to be the same everytime, but it's different.

I didn't get any kind of appropriate replies as of now. I hope, if this time
anybody could help me out..!

-- 
Regards!
Sugandha