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https://issues.apache.org/jira/browse/GIRAPH-1085?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15365188#comment-15365188
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Maja Kabiljo commented on GIRAPH-1085:
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https://reviews.facebook.net/D60435
> Add InMemoryDataAccessor
> ------------------------
>
> Key: GIRAPH-1085
> URL: https://issues.apache.org/jira/browse/GIRAPH-1085
> Project: Giraph
> Issue Type: New Feature
> Reporter: Maja Kabiljo
> Assignee: Maja Kabiljo
>
> When we deal with graphs which have a lot of vertices with very little total
> data associated with them (values + edges) we start experiencing memory
> problems because of too many objects created, since every vertex has multiple
> objects associated with it. To solve this problem, we should have a
> serialized partition representation (current ByteArrayPartition just keeps
> byte[] per vertex, not per partition). We can leverage the out-of-core
> infrastructure and just add data accessor which won't be backed by disk but
> in memory buffers.
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