Tommaso Teofili created HAMA-732:
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             Summary: Investigate the usage of Apache DirectMemory to store 
vertices
                 Key: HAMA-732
                 URL: https://issues.apache.org/jira/browse/HAMA-732
             Project: Hama
          Issue Type: Improvement
          Components: graph
    Affects Versions: 0.6.0
            Reporter: Tommaso Teofili
            Assignee: Tommaso Teofili
            Priority: Minor
             Fix For: 0.7.0


Since Apache DirectMemory can keep objects outside of the java heap that could 
help on improving performances.

I created a simple extension implementation of VerticesInfo which uses Apache 
DirectMemory CacheService instead of a List, performance seem to be improved.

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