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https://issues.apache.org/jira/browse/SPARK-21862?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joseph K. Bradley updated SPARK-21862:
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Shepherd: Joseph K. Bradley
> Add overflow check in PCA
> -------------------------
>
> Key: SPARK-21862
> URL: https://issues.apache.org/jira/browse/SPARK-21862
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Affects Versions: 2.2.0, 2.3.0
> Reporter: Weichen Xu
> Assignee: Weichen Xu
> Priority: Minor
>
> We should add overflow check in PCA, otherwise it is possible to throw
> `NegativeArraySizeException` when `k` and `numFeatures` are too large.
> The overflow checking formula is here:
> https://github.com/scalanlp/breeze/blob/master/math/src/main/scala/breeze/linalg/functions/svd.scala#L87
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