See Computation for how to mutate the graph:

addVertexRequest
removeVertexRequest
addEdgeRequest
removeEdgeRequest

On 8/12/13 10:41 PM, Puneet Agarwal wrote:
Hi,

I have a need to add some additional nodes in the graph, after a few supersteps in my algorithm.

As per the Pregel paper it is allowed. Will that be feasible in Giraph ?

If yes, how does it work?

Regards
Puneet
IIT Delhi

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