[jira] [Created] (FLINK-2909) Gelly Graph Generators

[Shang Yuanchun (Jira)]

Greg Hogan created FLINK-2909:
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             Summary: Gelly Graph Generators
                 Key: FLINK-2909
                 URL: https://issues.apache.org/jira/browse/FLINK-2909
             Project: Flink
          Issue Type: New Feature
          Components: Gelly
    Affects Versions: 1.0
            Reporter: Greg Hogan
            Assignee: Greg Hogan


Include a selection of graph generators in Gelly. Generated graphs will be useful for performing scalability, stress, and regression testing as well as benchmarking and comparing algorithms, for both Flink users and developers. Generated data is infinitely scalable yet described by a few simple parameters and can often substitute for user data or sharing large files when reporting issues.

There are at multiple categories of graphs as documented by [NetworkX|https://networkx.github.io/documentation/latest/reference/generators.html] and elsewhere.

Graphs may be a well-defined, i.e. the [Chvátal graph|https://en.wikipedia.org/wiki/Chv%C3%A1tal_graph]. These may be sufficiently small to populate locally.

Graphs may be scalable, i.e. complete and star graphs. These should use Flink's distributed parallelism.

Graphs may be stochastic, i.e. [RMat graphs|http://snap.stanford.edu/class/cs224w-readings/chakrabarti04rmat.pdf] . A key consideration is that the graphs should source randomness from a seedable PRNG and generate the same Graph regardless of parallelism.



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