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https://issues.apache.org/jira/browse/SPARK-25182?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mukul Murthy resolved SPARK-25182.
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Resolution: Duplicate
Target Version/s: (was: 2.4.0)
> Block Manager master and slave thread pools are unbounded
> ---------------------------------------------------------
>
> Key: SPARK-25182
> URL: https://issues.apache.org/jira/browse/SPARK-25182
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 2.3.0
> Reporter: Mukul Murthy
> Priority: Major
>
> Currently, BlockManagerMasterEndpoint and BlockManagerSlaveEndpoint both have
> thread pools with unbounded numbers of threads. In certain cases, this can
> lead to driver OOM errors. We should add an upper bound on the number of
> threads in these thread pools; this should not break any existing behavior
> because they still have queues of size Integer.MAX_VALUE.
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