Github user vasia commented on the pull request:
https://github.com/apache/flink/pull/765#issuecomment-140903149
Thanks for the explanation @mfahimazizi.
So, if you put the edge label inside the message that you send in the
messaging function, then you will know which values to add during odd and even
supersteps. All you have to do is create a message that contains both the node
value and the edge label.
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