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https://issues.apache.org/jira/browse/SPARK-25234?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiangrui Meng reassigned SPARK-25234:
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Assignee: Xiangrui Meng
> SparkR:::parallelize doesn't handle integer overflow properly
> -------------------------------------------------------------
>
> Key: SPARK-25234
> URL: https://issues.apache.org/jira/browse/SPARK-25234
> Project: Spark
> Issue Type: Story
> Components: SparkR
> Affects Versions: 2.3.1, 2.4.0
> Reporter: Xiangrui Meng
> Assignee: Xiangrui Meng
> Priority: Major
>
> parallelize uses integer multiplication, which cannot handle size over
> ~47000. This cause issues with lapply
>
> {code:java}
> SparkR:::parallelize(sc, 1:47000, 47000)
> Error in rep(start, end - start) : invalid 'times' argument
> Error in rep(start, end - start) : invalid 'times' argument
> In addition: Warning message:
> In x * length(coll) : NAs produced by integer overflow{code}
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