gaborgsomogyi commented on a change in pull request #23156: [SPARK-24063][SS]
Add maximum epoch queue threshold for ContinuousExecution
URL: https://github.com/apache/spark/pull/23156#discussion_r259340889
##########
File path:
sql/core/src/test/scala/org/apache/spark/sql/streaming/continuous/ContinuousSuite.scala
##########
@@ -343,3 +343,33 @@ class ContinuousMetaSuite extends ContinuousSuiteBase {
}
}
}
+
+class ContinuousEpochBacklogSuite extends ContinuousSuiteBase {
+ import testImplicits._
+
+ override protected def createSparkSession = new TestSparkSession(
+ new SparkContext(
+ "local[1]",
+ "continuous-stream-test-sql-context",
+ sparkConf.set("spark.sql.testkey", "true")))
+
+ // This test forces the backlog to overflow by not standing up enough
executors for the query
+ // to make progress.
+ test("epoch backlog overflow") {
+ withSQLConf(("spark.sql.streaming.continuous.epochBacklogQueueSize",
"10")) {
Review comment:
Fixed.
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