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From wesolowskim <>
Subject [GitHub] spark issue #14137: SPARK-16478 graphX (added graph caching in strongly conn...
Date Wed, 13 Jul 2016 14:11:45 GMT
Github user wesolowskim commented on the issue:
    I added unpersists to additionally created caches and checked performance. is
slightly longer, but returned graph is cached (both vertices and edges). 
    To fully optimize it and remove all unused graphs I'd have to carefully check everything
on large graph since sometimes it's easy to remove cache to early and in this case effect
will be seen after some materialization on graph outside scc. 
    I hope to get it accepted in current state (that is much more performant at least for
larger graphs). 
    Later on I'll try to further optimize it(it is tricky to do it elegantly because sccWorkGraph
gets overwritten twice before it is materialized, and one loop get's executed at least once).

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