[jira] [Created] (SPARK-29877) static PageRank allow checkPoint from previous computations

["Joan Fontanals (Jira)" <ji...@apache.org>]

Joan Fontanals created SPARK-29877:
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             Summary: static PageRank allow checkPoint from previous computations
                 Key: SPARK-29877
                 URL: https://issues.apache.org/jira/browse/SPARK-29877
             Project: Spark
          Issue Type: Wish
          Components: GraphX
    Affects Versions: 2.3.0
            Reporter: Joan Fontanals
             Fix For: 2.3.0


It would be really helpful to have the possibility, when computing staticPageRank to use a previous computation as a checkpoint to continue the iterations.

I have done a small code proposal, but there is a problem because at the end of the iterations a normalization step is performed.

Therefore, if we use this normalized graph as a checkpoint for a new set of iterations, the algorithm will not restart in a coherent way.

I created a branch in my fork: [https://github.com/JoanFM/spark/tree/pageRank_checkPoint]

I hope you can consider this feature, and if you do that you can implement yourself or propose me a way to handle this identified problem

Thank you very much,

Best regards,

Joan



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