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https://issues.apache.org/jira/browse/SPARK-16478?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen updated SPARK-16478:
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Assignee: Michał Wesołowski
Priority: Minor (was: Major)
Issue Type: Improvement (was: Bug)
> strongly connected components doesn't cache returned RDD
> --------------------------------------------------------
>
> Key: SPARK-16478
> URL: https://issues.apache.org/jira/browse/SPARK-16478
> Project: Spark
> Issue Type: Improvement
> Components: GraphX
> Affects Versions: 1.6.2
> Reporter: Michał Wesołowski
> Assignee: Michał Wesołowski
> Priority: Minor
> Fix For: 2.1.0
>
>
> Strongly Connected Components algorithm caches intermediary RDD's but doesn't
> cache the one that is going to be returned. With large enough graph comparing
> to available memory when one tries to take action on returned RDD whole RDD
> has to be computed from scratch which takes much more time than
> StronglyConnectedComponents alone .
> I managed to replicate the issue on databrics platform.
> [Here|https://databricks-prod-cloudfront.cloud.databricks.com/public/4027ec902e239c93eaaa8714f173bcfc/4889410027417133/3634650767364730/3117184429335832/latest.html]
> is notebook.
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