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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 updated SPARK-7100:
-----------------------------
            Priority: Minor  (was: Major)
    Target Version/s:   (was: 1.4.0)
       Fix Version/s:     (was: 1.4.0)

(Don't set fix/target version, and I don't think this is major. Have a look at 
https://cwiki.apache.org/confluence/display/SPARK/Contributing+to+Spark)

> 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
>
> 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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