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https://issues.apache.org/jira/browse/FLINK-4213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15377224#comment-15377224
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ASF GitHub Bot commented on FLINK-4213:
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GitHub user greghogan opened a pull request:
https://github.com/apache/flink/pull/2248
[FLINK-4213] [gelly] Provide CombineHint in Gelly algorithms
`VertexDegrees` has changed from using a `ReduceFunction` to using a
`GroupReduceFunction` as in directed `TriangleListing`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/greghogan/flink
4213_provide_combinehint_in_gelly_algorithms
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/2248.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #2248
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commit 2a8e5c708acefa881223bb3c8a6371bd5bb6ea9b
Author: Greg Hogan <[email protected]>
Date: 2016-07-14T13:39:02Z
[FLINK-4213] [gelly] Provide CombineHint in Gelly algorithms
----
> Provide CombineHint in Gelly algorithms
> ---------------------------------------
>
> Key: FLINK-4213
> URL: https://issues.apache.org/jira/browse/FLINK-4213
> Project: Flink
> Issue Type: Improvement
> Components: Gelly
> Affects Versions: 1.1.0
> Reporter: Greg Hogan
> Assignee: Greg Hogan
>
> Many graph algorithms will see better {{reduce}} performance with the
> hash-combine compared with the still default sort-combine, e.g. HITS and
> LocalClusteringCoefficient.
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