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https://issues.apache.org/jira/browse/HAMA-642?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Jungblut updated HAMA-642:
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Description:
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
- How do we deal with random access after messages have arrived?
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.
was:
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.
> 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
> - How do we deal with random access after messages have arrived?
> 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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