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https://issues.apache.org/jira/browse/HAMA-704?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13570073#comment-13570073
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Suraj Menon commented on HAMA-704:
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You are right, for the graph job, sorting messages would make it easier to join
the messages per vertex reading them using SpilledInputBuffer. So if you are
sure that the messages could be held in memory, you can use a spilling buffer
inside the VerticeInfo class for storing the vertex messages. Please use the
spilling buffer implementation from HAMA-721 patch for performance.
> Optimization of memory usage during message processing
> ------------------------------------------------------
>
> Key: HAMA-704
> URL: https://issues.apache.org/jira/browse/HAMA-704
> Project: Hama
> Issue Type: Improvement
> Components: graph
> Reporter: Edward J. Yoon
> Assignee: Edward J. Yoon
> Priority: Critical
> Attachments: mytest.patch, patch.txt
>
>
> <vertex, message> map seems consume a lot of memory. We should figure out an
> efficient way to reduce memory.
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