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From Deepak Nettem <>
Subject Changing Graph Size
Date Sun, 22 Jan 2012 19:30:10 GMT
Hi Folks,

I have a Graph processing problem where after each iteration, some vertices
get vanished. That is, they get merged into their neighbouring nodes based
on certain conditions and the graph keeps getting simplified after each

I was wondering if Giraph is worth trying for this.

I was going through the documentation and it says that the input data has
to be sorted.Why is this necessary?

Also, how does the  so called 'master' divide vertices in ranges? Does it
use some kind of a range partitioner? If there is range partitioning,
that's a problem for me, because of vanishing vertices - there will be load


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