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https://issues.apache.org/jira/browse/SPARK-7100?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen resolved SPARK-7100.
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Resolution: Fixed
Fix Version/s: 1.4.0
Issue resolved by pull request 5669
[https://github.com/apache/spark/pull/5669]
> GradientBoostTrees leaks a persisted RDD
> ----------------------------------------
>
> Key: SPARK-7100
> URL: https://issues.apache.org/jira/browse/SPARK-7100
> Project: Spark
> Issue Type: Bug
> Components: MLlib
> Affects Versions: 1.2.2, 1.3.1
> Reporter: Jim Carroll
> Priority: Minor
> Fix For: 1.4.0
>
>
> It appears GradientBoostedTrees.scala can call 'persist' on an RDD and never
> unpersist it.
> In the master branch it's in GradientBoostedTrees.boost method. It "persists"
> the input RDD if it's not already persisted but doesn't unpersist it.
> I'll be submitting a PR with a fix.
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