Hi, I am running spark streaming job on yarn-client mode. If run muliple jobs, some of the jobs failing and giving below error message. Is there any configuration missing? ERROR apache.spark.util.Utils - Uncaught exception in thread main java.lang.NullPointerException at org.apache.spark.network.netty.NettyBlockTransferService.close(NettyBlockTransferService.scala:152) at org.apache.spark.storage.BlockManager.stop(BlockManager.scala:1228) at org.apache.spark.SparkEnv.stop(SparkEnv.scala:100) at org.apache.spark.SparkContext$$anonfun$stop$12.apply$mcV$sp(SparkContext.scala:1749) at org.apache.spark.util.Utils$.tryLogNonFatalError(Utils.scala:1185) at org.apache.spark.SparkContext.stop(SparkContext.scala:1748) at org.apache.spark.SparkContext.<init>(SparkContext.scala:593) at org.apache.spark.streaming.StreamingContext$.createNewSparkContext(StreamingContext.scala:878) at org.apache.spark.streaming.StreamingContext.<init>(StreamingContext.scala:81) at org.apache.spark.streaming.api.java.JavaStreamingContext.<init>(JavaStreamingContext.scala:134) at com.infinite.spark.SparkTweetStreamingHDFSLoad.init(SparkTweetStreamingHDFSLoad.java:212) at com.infinite.spark.SparkTweetStreamingHDFSLoad.main(SparkTweetStreamingHDFSLoad.java:162) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:674) at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:180) at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:205) at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:120) at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala) INFO org.apache.spark.SparkContext - Successfully stopped SparkContext Exception in thread "main" org.apache.spark.SparkException: Yarn application has already ended! It might have been killed or unable to launch application master. at org.apache.spark.scheduler.cluster.YarnClientSchedulerBackend.waitForApplication(YarnClientSchedulerBackend.scala:123) at org.apache.spark.scheduler.cluster.YarnClientSchedulerBackend.start(YarnClientSchedulerBackend.scala:63) at org.apache.spark.scheduler.TaskSchedulerImpl.start(TaskSchedulerImpl.scala:144) at org.apache.spark.SparkContext.<init>(SparkContext.scala:523) at org.apache.spark.streaming.StreamingContext$.createNewSparkContext(StreamingContext.scala:878) at org.apache.spark.streaming.StreamingContext.<init>(StreamingContext.scala:81) at org.apache.spark.streaming.api.java.JavaStreamingContext.<init>(JavaStreamingContext.scala:134) at com.infinite.spark.SparkTweetStreamingHDFSLoad.init(SparkTweetStreamingHDFSLoad.java:212) at com.infinite.spark.SparkTweetStreamingHDFSLoad.main(SparkTweetStreamingHDFSLoad.java:162) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:674) at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:180) at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:205) at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:120) at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala) INFO apache.spark.storage.DiskBlockManager - Shutdown hook called INFO apache.spark.util.ShutdownHookManager - Shutdown hook called INFO apache.spark.util.ShutdownHookManager - Deleting directory /tmp/spark-945fa8f4-477c-4a65-a572-b247e9249061/userFiles-857fece4-83c4-441a-8d3e-2a6ae8e3193a INFO apache.spark.util.ShutdownHookManager - Deleting directory /tmp/spark-945fa8f4-477c-4a65-a572-b247e9249061
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