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https://issues.apache.org/jira/browse/SPARK-36085?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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XiDuo You resolved SPARK-36085.
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Resolution: Won't Fix
> Make broadcast query stage executionContext isolation from AQE
> --------------------------------------------------------------
>
> Key: SPARK-36085
> URL: https://issues.apache.org/jira/browse/SPARK-36085
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.1.2, 3.2.0, 3.3.0
> Reporter: XiDuo You
> Priority: Major
>
> `AdaptiveSparkPlanExec` shares the execution context with
> `BroadcastQueryStage`, but it has a small number thread (hard code 16).
> Unfortunately, it's not enough in some complex queries and no thread is
> available to cancel the broadcast stage.
>
> In normal code path (without AQE), broadcast has it's own execution context
> with a config `spark.sql.broadcastExchange.maxThreadThreshold`. It should
> make sense to make broadcast query stage executionContext isolation from AQE
> and respect the existed thread threshold config.
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