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https://issues.apache.org/jira/browse/SPARK-35701?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Herman van Hövell reassigned SPARK-35701:
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Assignee: Haiyang Sun
> Contention on SQLConf.sqlConfEntries and SQLConf.staticConfKeys
> ---------------------------------------------------------------
>
> Key: SPARK-35701
> URL: https://issues.apache.org/jira/browse/SPARK-35701
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.1.2
> Reporter: Haiyang Sun
> Assignee: Haiyang Sun
> Priority: Major
>
> The global locks used to protect {{SQLConf.sqlConfEntries}} map and the
> {{SQLConf.staticConfKeys}} set can cause significant contention on the
> SQLConf instance in a concurrent setting.
> Using copy-on-write versions should reduce the contention given that
> modifications to the configs are relatively rare.
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