Thomas Jungblut created HAMA-642:
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Summary: Make GraphRunner disk based
Key: HAMA-642
URL: https://issues.apache.org/jira/browse/HAMA-642
Project: Hama
Issue Type: Improvement
Components: graph
Reporter: Thomas Jungblut
To improve scalability we can improve the graph runner to be disk based.
Which basically means:
- We have just a single Vertex instance that get's refilled.
- We directly write vertices to disk after partitioning
- In every superstep we iterate over the vertices on disk, fill the vertex
instance and call the users compute functions
Problems:
- State other than vertex value can't be stored easy
So I think we should make the graph runner more hybrid, like using the queues
we have implemented in the messaging. So the graphrunner can be configured to
run completely on disk, in cached mode or in in-memory mode.
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