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Posted to issues@spark.apache.org by "Michał Wesołowski (JIRA)" <ji...@apache.org> on 2016/07/16 09:33:20 UTC
[jira] [Commented] (SPARK-5484) Pregel should checkpoint
periodically to avoid StackOverflowError
[ https://issues.apache.org/jira/browse/SPARK-5484?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15380653#comment-15380653 ]
Michał Wesołowski commented on SPARK-5484:
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[~ankurd] do you plan to prepare another solution? I could see your pull request was closed, but did solve problem and was best thing at a time. The only thing I could see lacking was no ckeckpoint directory cleaning, and I guess I would change checkpoint iterations to 35 since it worked better during my tests.
More general solution proposed within Spark-5561 needs a change withing PeriodicRDDCheckpointer and PeriodicGraphCheckpointer - either to move it from mllib or change access modifier.
> Pregel should checkpoint periodically to avoid StackOverflowError
> -----------------------------------------------------------------
>
> Key: SPARK-5484
> URL: https://issues.apache.org/jira/browse/SPARK-5484
> Project: Spark
> Issue Type: Bug
> Components: GraphX
> Reporter: Ankur Dave
> Assignee: Ankur Dave
>
> Pregel-based iterative algorithms with more than ~50 iterations begin to slow down and eventually fail with a StackOverflowError due to Spark's lack of support for long lineage chains. Instead, Pregel should checkpoint the graph periodically.
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