Ryan Williams created SPARK-4667:
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Summary: 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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