Major Description
The following message is in the logs after killing a stage:
scala> INFO Executor: Executor killed task 1.0 in stage 7.0 (TID 33) INFO Executor: Executor killed task 0.0 in stage 7.0 (TID 32) WARN TaskSetManager: Lost task 1.0 in stage 7.0 (TID 33, localhost): TaskKilled (killed intentionally) WARN TaskSetManager: Lost task 0.0 in stage 7.0 (TID 32, localhost): TaskKilled (killed intentionally) INFO TaskSchedulerImpl: Removed TaskSet 7.0, whose tasks have all completed, from pool ERROR LiveListenerBus: Listener SQLListener threw an exception java.lang.NullPointerException at org.apache.spark.sql.execution.ui.SQLListener.onTaskEnd(SQLListener.scala:167) at org.apache.spark.scheduler.SparkListenerBus$class.onPostEvent(SparkListenerBus.scala:42) at org.apache.spark.scheduler.LiveListenerBus.onPostEvent(LiveListenerBus.scala:31) at org.apache.spark.scheduler.LiveListenerBus.onPostEvent(LiveListenerBus.scala:31) at org.apache.spark.util.ListenerBus$class.postToAll(ListenerBus.scala:55) at org.apache.spark.util.AsynchronousListenerBus.postToAll(AsynchronousListenerBus.scala:37) at org.apache.spark.util.AsynchronousListenerBus$$anon$1$$anonfun$run$1$$anonfun$apply$mcV$sp$1.apply$mcV$sp(AsynchronousListenerBus.scala:80) at org.apache.spark.util.AsynchronousListenerBus$$anon$1$$anonfun$run$1$$anonfun$apply$mcV$sp$1.apply(AsynchronousListenerBus.scala:65) at org.apache.spark.util.AsynchronousListenerBus$$anon$1$$anonfun$run$1$$anonfun$apply$mcV$sp$1.apply(AsynchronousListenerBus.scala:65) at scala.util.DynamicVariable.withValue(DynamicVariable.scala:58) at org.apache.spark.util.AsynchronousListenerBus$$anon$1$$anonfun$run$1.apply$mcV$sp(AsynchronousListenerBus.scala:64) at org.apache.spark.util.Utils$.tryOrStopSparkContext(Utils.scala:1169) at org.apache.spark.util.AsynchronousListenerBus$$anon$1.run(AsynchronousListenerBus.scala:63) ERROR LiveListenerBus: Listener SQLListener threw an exception java.lang.NullPointerException at org.apache.spark.sql.execution.ui.SQLListener.onTaskEnd(SQLListener.scala:167) at org.apache.spark.scheduler.SparkListenerBus$class.onPostEvent(SparkListenerBus.scala:42) at org.apache.spark.scheduler.LiveListenerBus.onPostEvent(LiveListenerBus.scala:31) at org.apache.spark.scheduler.LiveListenerBus.onPostEvent(LiveListenerBus.scala:31) at org.apache.spark.util.ListenerBus$class.postToAll(ListenerBus.scala:55) at org.apache.spark.util.AsynchronousListenerBus.postToAll(AsynchronousListenerBus.scala:37) at org.apache.spark.util.AsynchronousListenerBus$$anon$1$$anonfun$run$1$$anonfun$apply$mcV$sp$1.apply$mcV$sp(AsynchronousListenerBus.scala:80) at org.apache.spark.util.AsynchronousListenerBus$$anon$1$$anonfun$run$1$$anonfun$apply$mcV$sp$1.apply(AsynchronousListenerBus.scala:65) at org.apache.spark.util.AsynchronousListenerBus$$anon$1$$anonfun$run$1$$anonfun$apply$mcV$sp$1.apply(AsynchronousListenerBus.scala:65) at scala.util.DynamicVariable.withValue(DynamicVariable.scala:58) at org.apache.spark.util.AsynchronousListenerBus$$anon$1$$anonfun$run$1.apply$mcV$sp(AsynchronousListenerBus.scala:64) at org.apache.spark.util.Utils$.tryOrStopSparkContext(Utils.scala:1169) at org.apache.spark.util.AsynchronousListenerBus$$anon$1.run(AsynchronousListenerBus.scala:63)
To reproduce, start a job and kill the stage from web UI, e.g.:
val rdd = sc.parallelize(0 to 9, 2)
rdd.mapPartitionsWithIndex { case (n, it) => Thread.sleep(10 * 1000); it }.count
Go to web UI and in Stages tab click "kill" for the stage.
