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https://issues.apache.org/jira/browse/SPARK-22004?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16165853#comment-16165853
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Weichen Xu commented on SPARK-22004:
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I will create PR once SPARK-21086 merged.
> CrossValidator, TrainValidationSplit dump sub models to disk when fitting:
> Scala API
> ------------------------------------------------------------------------------------
>
> Key: SPARK-22004
> URL: https://issues.apache.org/jira/browse/SPARK-22004
> Project: Spark
> Issue Type: Sub-task
> Components: ML
> Affects Versions: 2.3.0
> Reporter: Weichen Xu
>
> We add a parameter indicating whether to persist models to disk during
> training (default = off). This will use ML persistence to dump models to a
> directory so they are available later but do not consume memory.
> Note: when persisting the model list, use indices as the sub-model path
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