GitHub user andralungu opened a pull request:
https://github.com/apache/flink/pull/1291
[FLINK-2634] [gelly] [WIP] Vertex Centric Triangle Count
This PR builds on the code presented in #1105.
Basically, the reduceOn* calls are replaced with groupReduceOn* calls.
As discussed back then, I made the lib method accept any kind of keys.
While doing so, I found a bit of a bug (which is why I marked this as WIP). The
groupReduceOnNeighbors function has a version that takes a type argument. The
problem with that is: coGroup tries to build a type before the call to
`returns()` which means that it cannot infer the type from the info it has.
I'll explain this a bit better in a Jira.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/andralungu/flink trianglecount-vertexcentric
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/1291.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 #1291
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commit 1fbc09ca35e80f61f31cf7a6166f27f2a6f142c1
Author: andralungu <[email protected]>
Date: 2015-10-22T06:18:43Z
[FLINK-2634] [gelly] Vertex Centric Triangle Count
[FLINK-2634] [gelly] Fixed Type Erasure
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