pan3793 commented on code in PR #54133:
URL: https://github.com/apache/spark/pull/54133#discussion_r2787056530
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sql/catalyst/src/main/scala/org/apache/spark/sql/internal/StaticSQLConf.scala:
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@@ -236,6 +236,15 @@ object StaticSQLConf {
.booleanConf
.createWithDefault(false)
+ val SQL_UI_APP_STATUS_LISTENER_ENABLED =
+ buildStaticConf("spark.sql.ui.appStatusListener.enabled")
+ .doc("Whether to enable SQLAppStatusListener for collecting SQL
execution metrics. " +
+ "Disabling this can significantly reduce driver memory usage for
complex queries with " +
+ "many stages and tasks, but will result in limited SQL execution
information in the UI.")
+ .version("4.0.0")
+ .booleanConf
+ .createWithDefault(true)
Review Comment:
Spark currently under 4.2 development cycle so version should be "4.2.0".
I agree `appStatusListener` should keep enabled by default. But could you
disable it and tigger a round CI, to help us evaluate the impact?
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