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From Zesheng Wu <wuzeshen...@gmail.com>
Subject Replace a block with a new one
Date Thu, 17 Jul 2014 09:50:01 GMT
Hi guys,

I recently encounter a scenario which needs to replace an exist block with
a newly written block
The most straightforward way to finish may be like this:
Suppose the original file is A, and we write a new file B which is composed
by the new data blocks, then we merge A and B to C which is the file we
The obvious shortcoming of this method is wasting of network bandwidth

I'm wondering whether there is a way to replace the old block by the new
block directly.
Any thoughts?

Best Wishes!

Yours, Zesheng

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