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vasia / gelly-streaming

An experimental Graph Streaming API for Apache Flink
Apache License 2.0
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The result of ExactTriangleCount #33

Closed lilicao701 closed 7 years ago

lilicao701 commented 7 years ago

Hi, I want to test ExactTriangleCount with the fellow test data in my IDEA local model , but the result I think is not right: new Edge<>(1, 2, NullValue.getInstance()), new Edge<>(2, 3, NullValue.getInstance()), new Edge<>(2, 6, NullValue.getInstance()), new Edge<>(5, 6, NullValue.getInstance()), new Edge<>(1, 4, NullValue.getInstance()), new Edge<>(5, 3, NullValue.getInstance()), new Edge<>(3, 4, NullValue.getInstance()), new Edge<>(3, 6, NullValue.getInstance()), new Edge<>(1, 3, NullValue.getInstance())),

In addition，the results are not the same for each run， and one time the result is like this: 1> (-1,1) 3> (6,1) 8> (2,1) 2> (3,1) 7> (1,1) 2> (3,2) 8> (4,1) 1> (-1,2)

with vertexID=3, the triangle is 4 ,not 1; so I want to know how to run this algorithm?

thank you very much.

vasia commented 7 years ago

Hi @lilicao701, is this the whole output you're getting? This is a streaming algorithm, so the more edges you see the triangles change. That's why you first see (3, 1), then (3, 2). There should also be a (3, 4) later on.

lilicao701 commented 7 years ago

@ vasia: Thank you very much for answer this problem, I find that the cause of the error, is Flink version , in my develop IDEA, the flink version is 1.1.5 (main cause of Parallelism) , when I change to Flink-1.2.0 ,the result is right.