执行器以状态KILLED exitStatus 1完成

Question

在一台机器上启动主服务器和工作服务器后...

spark-class org.apache.spark.deploy.master.Master -i 127.0.0.1 -p 7070
spark-class org.apache.spark.deploy.worker.Worker 127.0.0.1:7070

并提交以下Spark作业...

spark-submit --class Main --master spark://127.0.0.1:7070 --deploy-mode client /path/to/app.jar

应用程序已成功执行，但由于某种原因，执行器被强制终止：

19/05/10 09:28:31 INFO Worker: Asked to kill executor app-20190510092810-0000/0
19/05/10 09:28:31 INFO ExecutorRunner: Runner thread for executor app-20190510092810-0000/0 interrupted
19/05/10 09:28:31 INFO ExecutorRunner: Killing process!
19/05/10 09:28:31 INFO Worker: Executor app-20190510092810-0000/0 finished with state KILLED exitStatus 1

这是正常行为吗？如果没有，如何防止这种情况发生？

我正在使用Spark 2.4.0。