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https://issues.apache.org/jira/browse/SPARK-1103?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14010099#comment-14010099
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Andrew Ash commented on SPARK-1103:
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https://github.com/apache/spark/pull/126
> Garbage collect RDD information inside of Spark
> -----------------------------------------------
>
> Key: SPARK-1103
> URL: https://issues.apache.org/jira/browse/SPARK-1103
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Reporter: Patrick Wendell
> Assignee: Tathagata Das
> Priority: Blocker
> Fix For: 1.0.0
>
>
> When Spark jobs run for a long period of time, state accumulates. This is
> dealt with now using TTL-based cleaning. Instead we should do proper garbage
> collection using weak references.
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