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https://issues.apache.org/jira/browse/SPARK-27391?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jose Torres resolved SPARK-27391.
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Resolution: Fixed
Fix Version/s: 3.0.0
Issue resolved by pull request 24301
[https://github.com/apache/spark/pull/24301]
> deadlock in ContinuousExecution unit tests
> ------------------------------------------
>
> Key: SPARK-27391
> URL: https://issues.apache.org/jira/browse/SPARK-27391
> Project: Spark
> Issue Type: Bug
> Components: Structured Streaming
> Affects Versions: 2.4.0
> Reporter: Jose Torres
> Priority: Major
> Fix For: 3.0.0
>
>
> ContinuousExecution (in the final query execution phrase) holds the lazy val
> lock of its IncrementalExecution for the entire duration of the (indefinite
> length) job. This can cause deadlocks in unit tests, which hook into internal
> APIs and try to instantiate other lazy vals.
>
> (Note that this should not be able to affect production.)
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