I did not get your complete idea here but before that, file will be splitted into blocks. Then how will you extract ?
Why con't you create tar file and one index file which will maintain index of each file..something like this?
From: Sesha Kumar [[EMAIL PROTECTED]]
Sent: Wednesday, January 18, 2012 8:24 PM
To: [EMAIL PROTECTED]
Subject: Re: Data processing in DFSClient
Sorry for the delay. I'm trying to implement an IEEE paper which combines a bunch of files into a single file and when the file is requested the datanode extracts the desired file from the block and sends the file to DFSClient.