persistant data structures storage

[Vijju Reddy <vj...@yahoo.com>]

hello,


I am M Vijender Reddy from Indian Institute of 
Science(IISc),Bangalore. Under the guidance of my professor,Mr Y N 
Srikant i am working on the hdfs file system. I want to know whether there is a option in hdfs to store the persistant data structures like a very big tree and make the other nodes to access that data structure.i also want to know the metadata format stored by a NameNode for each file. Can you tell me how to know the internal details of hdfs in a keen way.


thank you,
vijender reddy