vrozov commented on code in PR #52630:
URL: https://github.com/apache/spark/pull/52630#discussion_r2434241037
##########
connector/kinesis-asl/src/test/scala/org/apache/spark/streaming/kinesis/KPLBasedKinesisTestUtils.scala:
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@@ -53,6 +52,7 @@ private[kinesis] class KPLDataGenerator(regionName: String)
extends KinesisDataG
}
override def sendData(streamName: String, data: Seq[Int]): Map[String,
Seq[(Int, String)]] = {
+ val executor = Executors.newSingleThreadExecutor()
Review Comment:
Single thread executor helps to avoid synchronization in callbacks.
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