Hi Shesha, Take a look at org.apache.hadoop.hdfs.server.datanode.BlockSender.java
Regards, Uma ________________________________ From: Sesha Kumar [sesha...@gmail.com] Sent: Monday, January 16, 2012 7:50 PM To: hdfs-user@hadoop.apache.org Subject: Data processing in DFSClient Hey guys, Sorry for the typo in my last message.I have corrected it. I would like to perform some additional processing on the data which is streamed to DFSClient. To my knowledge the class DFSInputStream manages the stream operations on the client side whenever a file is being read, but i don't know which class should be modified to add this additional processing capability to data node. Please clarify. Thanks in advance