Maja Kabiljo created GIRAPH-667:
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Summary: Decouple Vertex data and Computation, make Computation
and Combiner classes switchable
Key: GIRAPH-667
URL: https://issues.apache.org/jira/browse/GIRAPH-667
Project: Giraph
Issue Type: New Feature
Reporter: Maja Kabiljo
Assignee: Maja Kabiljo
Currently, our Vertex class holds a lot of stuff which shouldn't be there,
related to global graph and worker state. We should decouple vertex and
computation, vertex should be provided by the infrastructure and user should
implement the computation.
In many real-world applications there are several different stages, where
different kind of computation is done and different type of messages are sent.
This can be done currently by having complicated compute() and encoding the
message type inside of the message. Much better would be to provide a way to
change which Computation is used by Giraph. Applications can then be considered
as pieces which can be put together in a pipeline coordinated by master.
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