hadoop - 完成任务时在SQLListener.onTaskEnd上引发NullPointerException

Question

我有一个使用Scala的Spark应用程序，该应用程序执行一系列转换，然后将结果写入 Parquet 文件中。

转换部分顺利完成，结果输出正确写入HDFS。该应用程序在30个节点的YARN群集上运行。

但是，Spark应用程序本身不会完成并退出YARN。它将保留在资源管理器中。

挂了大约一个小时(消耗资源和vcore)后，它要么结束，要么抛出错误并杀死自己。

这是应用程序的错误日志。赞赏是否有人能对此事提供一些启示。

16/08/24 14:51:12 INFO impl.ContainerManagementProtocolProxy: Opening proxy : phhdpdn013x.company.com:8041
16/08/24 14:51:22 INFO cluster.YarnClusterSchedulerBackend: Registered executor NettyRpcEndpointRef(null) (phhdpdn013x.company.com:54175) with ID 1
16/08/24 14:51:22 INFO storage.BlockManagerMasterEndpoint: Registering block manager phhdpdn013x.company.com:24700 with 2.1 GB RAM, BlockManagerId(1, phhdpdn013x.company.com, 24700)
16/08/24 14:51:29 INFO cluster.YarnClusterSchedulerBackend: SchedulerBackend is ready for scheduling beginning after waiting maxRegisteredResourcesWaitingTime: 30000(ms)
16/08/24 14:51:29 INFO cluster.YarnClusterScheduler: YarnClusterScheduler.postStartHook done
16/08/24 15:11:00 ERROR scheduler.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$$anonfun$apply$mcV$sp$1.apply(AsynchronousListenerBus.scala:65)
    at scala.util.DynamicVariable.withValue(DynamicVariable.scala:57)
    at org.apache.spark.util.AsynchronousListenerBus$$anon$1$$anonfun$run$1.apply$mcV$sp(AsynchronousListenerBus.scala:64)
    at org.apache.spark.util.Utils$.tryOrStopSparkContext(Utils.scala:1181)
    at org.apache.spark.util.AsynchronousListenerBus$$anon$1.run(AsynchronousListenerBus.scala:63)
16/08/24 15:11:46 ERROR scheduler.LiveListenerBus: Listener SQLListener threw an exception
java.lang.NullPointerException

a

Answer 1

您的Spark版本是什么？
您的错误看起来很像这个问题

https://issues.apache.org/jira/browse/SPARK-12339