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https://issues.apache.org/jira/browse/GIRAPH-1052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15233019#comment-15233019
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Hudson commented on GIRAPH-1052:
--------------------------------
FAILURE: Integrated in Giraph-trunk-Commit #1598 (See
[https://builds.apache.org/job/Giraph-trunk-Commit/1598/])
GIRAPH-1052: Fix makeSymmetricUnweighted (majakabiljo:
[http://git-wip-us.apache.org/repos/asf?p=giraph.git&a=commit&h=bac93fadea1a696e9017e273be594b4b0981f010])
*
giraph-block-app-8/src/main/java/org/apache/giraph/block_app/library/prepare_graph/PrepareGraphPieces.java
> Fix makeSymmetricUnweighted
> ---------------------------
>
> Key: GIRAPH-1052
> URL: https://issues.apache.org/jira/browse/GIRAPH-1052
> Project: Giraph
> Issue Type: Bug
> Reporter: Maja Kabiljo
> Assignee: Maja Kabiljo
>
> PrepareGraphPieces.makeSymmetricUnweighted is currently very inefficient for
> skewed degree graphs, because it reuses set objects based on the number of in
> edges, but also adds all out edges to the set, so sets which should be small
> can become huge.
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