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https://issues.apache.org/jira/browse/SPARK-4667?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ryan Williams closed SPARK-4667.
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Resolution: Not a Problem
> Spillable can request more than twice its current memory from pool
> ------------------------------------------------------------------
>
> Key: SPARK-4667
> URL: https://issues.apache.org/jira/browse/SPARK-4667
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Reporter: Ryan Williams
>
> [Spillable|https://github.com/apache/spark/blob/0eb4a7fb0fa1fa56677488cbd74eb39e65317621/core/src/main/scala/org/apache/spark/util/collection/Spillable.scala#L78]
> has a comment that says "{{Claim up to double our current memory from the
> shuffle memory pool}}", but then it proceeds to request {{2 * currentMemory -
> myMemoryThreshold}}, which can more than double its current memory amount.
> The requested amount (or the comment) should be changed.
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