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https://issues.apache.org/jira/browse/SPARK-16835?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen resolved SPARK-16835.
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Resolution: Won't Fix
> LinearRegression LogisticRegression AFTSuvivalRegression should unpersist
> input training data when exception throws
> -------------------------------------------------------------------------------------------------------------------
>
> Key: SPARK-16835
> URL: https://issues.apache.org/jira/browse/SPARK-16835
> Project: Spark
> Issue Type: Bug
> Components: ML
> Affects Versions: 2.0.1, 2.1.0
> Reporter: Weichen Xu
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> Currently,
> LinearRegression LogisticRegression AFTSuvivalRegression' s `fit` interface
> will persist the `dataframe` passed in if it is not persisted.
> but when possible exception throws, it won't be unpersist.
> As `fit` is a public interface, it is better to unpersist the parameter
> object passed in in any case, if it do `persist` internally.
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