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From Steve Loughran <ste...@apache.org>
Subject Re: hello guys
Date Thu, 04 Aug 2011 09:58:51 GMT
On 03/08/11 12:59, Vijju Reddy wrote:
> 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.


Because Hadoop is open source, all the source is there for you to 
download and explore. There are even plug-in points for scheduling work 
and placing blocks of files that would be ideal for anyone to start 
doing university work on, as you can be confident you won't break the 
rest of the system.

For details of how the NameNode works, find the NameNode class and 
follow its classes down.

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