org.apache.spark.SparkException: Job aborted due to stage failure: Task 32 in stage 85.0 failed 4 times, most recent failure: Lost task 32.3 in stage 85.0 (TID 1668, ip-10-81-194-241.ec2.internal): java.lang.NullPointerException I've provided one of the stack traces below: Driver stacktrace:

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Job aborted due to stage failure: Task 32 in stage 85.0 failed 4 times, most recent failure: Lost task 32.3 in stage 85.0 (TID 1668, ip-10-81-194-241.ec2.internal): java.lang.NullPointerException I've provided one of the stack traces below: Driver stacktrace:
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Job aborted due to stage failure: Task 191 in stage 0.0 failed 4 times, most recent failure: Lost task 191.3 in stage 0.0 (TID 483, cluster-4-w-40.c.ll-1167.internal): ExecutorLostFailure (executor 114 exited caused by one of the running tasks
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org.apache.spark.SparkException: Job aborted due to stage failure: Task 32 in stage 85.0 failed 4 times, most recent failure: Lost task 32.3 in stage 85.0 (TID 1668, ip-10-81-194-241.ec2.internal): java.lang.NullPointerException
 I've provided one of the stack traces below: Driver stacktrace:	at org.apache.spark.scheduler.DAGScheduler.org$apache$spark$scheduler$DAGScheduler$$failJobAndIndependentStages(DAGScheduler.scala:1431)	at org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGScheduler.scala:1419)	at org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGScheduler.scala:1418)	at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)	at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47)	at org.apache.spark.scheduler.DAGScheduler.abortStage(DAGScheduler.scala:1418)	at org.apache.spark.scheduler.DAGScheduler$$anonfun$handleTaskSetFailed$1.apply(DAGScheduler.scala:799)	at org.apache.spark.scheduler.DAGScheduler$$anonfun$handleTaskSetFailed$1.apply(DAGScheduler.scala:799)	at scala.Option.foreach(Option.scala:236)	at org.apache.spark.scheduler.DAGScheduler.handleTaskSetFailed(DAGScheduler.scala:799)	at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.doOnReceive(DAGScheduler.scala:1640)	at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:1599)	at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:1588)	at org.apache.spark.util.EventLoop$$anon$1.run(EventLoop.scala:48)	at org.apache.spark.scheduler.DAGScheduler.runJob(DAGScheduler.scala:620)	at org.apache.spark.SparkContext.runJob(SparkContext.scala:1837)	at org.apache.spark.SparkContext.runJob(SparkContext.scala:1850)	at org.apache.spark.SparkContext.runJob(SparkContext.scala:1927)	at org.apache.spark.rdd.PairRDDFunctions$$anonfun$saveAsHadoopDataset$1.apply$mcV$sp(PairRDDFunctions.scala:1209)	at org.apache.spark.rdd.PairRDDFunctions$$anonfun$saveAsHadoopDataset$1.apply(PairRDDFunctions.scala:1154)	at org.apache.spark.rdd.PairRDDFunctions$$anonfun$saveAsHadoopDataset$1.apply(PairRDDFunctions.scala:1154)	at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:150)	at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:111)	at org.apache.spark.rdd.RDD.withScope(RDD.scala:316)	at org.apache.spark.rdd.PairRDDFunctions.saveAsHadoopDataset(PairRDDFunctions.scala:1154)	at org.apache.spark.rdd.PairRDDFunctions$$anonfun$saveAsHadoopFile$4.apply$mcV$sp(PairRDDFunctions.scala:1060)	at org.apache.spark.rdd.PairRDDFunctions$$anonfun$saveAsHadoopFile$4.apply(PairRDDFunctions.scala:1026)	at org.apache.spark.rdd.PairRDDFunctions$$anonfun$saveAsHadoopFile$4.apply(PairRDDFunctions.scala:1026)	at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:150)	at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:111)	at org.apache.spark.rdd.RDD.withScope(RDD.scala:316)	at org.apache.spark.rdd.PairRDDFunctions.saveAsHadoopFile(PairRDDFunctions.scala:1026)	at org.apache.spark.rdd.PairRDDFunctions$$anonfun$saveAsHadoopFile$1.apply$mcV$sp(PairRDDFunctions.scala:952)	at org.apache.spark.rdd.PairRDDFunctions$$anonfun$saveAsHadoopFile$1.apply(PairRDDFunctions.scala:952)	at org.apache.spark.rdd.PairRDDFunctions$$anonfun$saveAsHadoopFile$1.apply(PairRDDFunctions.scala:952)	at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:150)	at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:111)	at org.apache.spark.rdd.RDD.withScope(RDD.scala:316)	at org.apache.spark.rdd.PairRDDFunctions.saveAsHadoopFile(PairRDDFunctions.scala:951)	at org.apache.spark.rdd.RDD$$anonfun$saveAsTextFile$1.apply$mcV$sp(RDD.scala:1457)	at org.apache.spark.rdd.RDD$$anonfun$saveAsTextFile$1.apply(RDD.scala:1436)	at org.apache.spark.rdd.RDD$$anonfun$saveAsTextFile$1.apply(RDD.scala:1436)	at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:150)	at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:111)	at org.apache.spark.rdd.RDD.withScope(RDD.scala:316)	at org.apache.spark.rdd.RDD.saveAsTextFile(RDD.scala:1436)