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https://issues.apache.org/jira/browse/HAMA-783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13860181#comment-13860181
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Edward J. Yoon commented on HAMA-783:
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According to my tests, this patch reduces memory usage by about 20 ~ 60%. I'll
commit this tomorrow.
> Efficient InMemory Storage for Vertices
> ---------------------------------------
>
> Key: HAMA-783
> URL: https://issues.apache.org/jira/browse/HAMA-783
> Project: Hama
> Issue Type: Improvement
> Components: graph
> Reporter: Edward J. Yoon
> Fix For: 0.7.0
>
> Attachments: patch.txt
>
>
> Currently there are ListVerticesInfo, DiskVerticesInfo and DirectMemory, but
> I personally think we have to do a big re-design of the vertices storage and
> graph job runner.
> Actually, the size of split is not so great. Maybe, 60 ~ 200MB. Hence, I
> don't think DiskVerticesInfo will be really helpful. Instead, we can use the
> Serialization like Spark.
> Update:
> 1) We also need to consider the checkpointing for Fault Tolerance,
> periodically.
> 2) If DiskVerticesInfo shows good performance, we can use just the
> DiskVerticesInfo.
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