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https://issues.apache.org/jira/browse/GIRAPH-1085?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15371228#comment-15371228
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Hudson commented on GIRAPH-1085:
--------------------------------
FAILURE: Integrated in Giraph-trunk-Commit #1637 (See
[https://builds.apache.org/job/Giraph-trunk-Commit/1637/])
GIRAPH-1085: Add InMemoryDataAccessor (majakabiljo:
[http://git-wip-us.apache.org/repos/asf?p=giraph.git&a=commit&h=b51ecd27cccc520764c9ae53cabcb61d67d46d15])
* giraph-core/src/main/java/org/apache/giraph/ooc/data/DiskBackedDataStore.java
* giraph-core/src/main/java/org/apache/giraph/utils/io/BigDataOutput.java
*
giraph-core/src/main/java/org/apache/giraph/ooc/persistence/OutOfCoreDataAccessor.java
*
giraph-core/src/main/java/org/apache/giraph/ooc/persistence/InMemoryDataAccessor.java
> 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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