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https://issues.apache.org/jira/browse/SPARK-27728?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David C Navas updated SPARK-27728:
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Attachment: RaceConditions.pdf
> Address thread-safety of InMemoryStore and ElementTrackingStores.
> -----------------------------------------------------------------
>
> Key: SPARK-27728
> URL: https://issues.apache.org/jira/browse/SPARK-27728
> Project: Spark
> Issue Type: Sub-task
> Components: Spark Core
> Affects Versions: 2.3.3
> Reporter: David C Navas
> Priority: Major
> Attachments: RaceConditions.pdf
>
>
> There are a couple of thread-safety issues we discovered in trying to track
> down excessive memory use. These are detailed in the attachment. One is a
> problem that looks like it might be a race condition in the ordering of
> updating elements in the tracking store, and the other is an incorrect (and
> likely unnecessary) caching of the size of an underlying data-structure.
>
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