cloud-fan commented on a change in pull request #31053:
URL: https://github.com/apache/spark/pull/31053#discussion_r557037436
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File path:
sql/core/src/test/scala/org/apache/spark/sql/SparkSessionBuilderSuite.scala
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@@ -196,6 +198,71 @@ class SparkSessionBuilderSuite extends SparkFunSuite with
BeforeAndAfterEach {
assert(postFirstCreation == postSecondCreation)
}
+ test("SPARK-32165: SparkContext only register one SQLAppStatusListener") {
+ val conf = new SparkConf()
+ .setMaster("local")
+ .setAppName("test-register-one-SQLAppStatusListener")
+ val context = new SparkContext(conf)
+ SparkSession
+ .builder()
+ .sparkContext(context)
+ .master("local")
+ .getOrCreate()
+ // Touches the sessionState so it initiate SQLAppStatusListener and
ExecutionListenerBus
+ .sessionState
+
+ assert(countListener("SQLAppStatusListener", context) === 1)
+ assert(countListener("ExecutionListenerBus", context) === 1)
+ val postFirstCreation = context.listenerBus.listeners.size()
+ SparkSession.clearActiveSession()
+ SparkSession.clearDefaultSession()
+
+ SparkSession
+ .builder()
+ .sparkContext(context)
+ .master("local")
+ .getOrCreate()
+ .sessionState
+ assert(countListener("SQLAppStatusListener", context) === 1)
+ assert(countListener("ExecutionListenerBus", context) === 2)
+ val postSecondCreation = context.listenerBus.listeners.size()
+ SparkSession.clearActiveSession()
+ SparkSession.clearDefaultSession()
+ // Minus 1 because the listener `ExecutionListenerBus` is created per
SparkSession
+ assert(postFirstCreation == postSecondCreation - 1)
Review comment:
is it duplicated with checking
`assert(countListener("ExecutionListenerBus", context) === 2)`?
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