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From Ravi Prakash <ravihad...@gmail.com>
Subject Re: datanode to blocks mapping
Date Thu, 16 Feb 2012 16:59:04 GMT

I'm glad I could help. I suggest you import the source code in an IDE (we
use Eclipse) and navigate around it. The outline view in Eclipse is a
lifesaver :)

BlocksMap does not seem to have that API. I would try FSNamesystem on the
namenode. On the client side, the DFSClient class is what opens a file (and
takes care of all the block-mapping).

Hope this helps,

On Wed, Feb 15, 2012 at 6:56 PM, Selwa <elhamab99@gmail.com> wrote:

> Ravi,
> thank u very much for your reply.
> i am using version 0.21.0 . hope your comment will help me a lot.
> BTW, after i got the blocksMap, can i request this blocksMap to return
> blocks of a given file.
> i mean how to map a filename to its blocks?
> Best wishes,
> Selwa
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