Hi Ted, Thank you. Yes. This issue is related to https://issues.apache.org/jira/browse/SPARK-4170
Regards, Rajesh On Wed, Dec 23, 2015 at 12:09 AM, Ted Yu <yuzhih...@gmail.com> wrote: > This should be related: > https://issues.apache.org/jira/browse/SPARK-4170 > > On Tue, Dec 22, 2015 at 9:34 AM, Madabhattula Rajesh Kumar < > mrajaf...@gmail.com> wrote: > >> Hi, >> >> I have a standalone cluster. One Master + One Slave. I'm getting below >> "NULL POINTER" exception. >> >> Could you please help me on this issue. >> >> >> *Code Block :-* >> val accum = sc.accumulator(0) >> sc.parallelize(Array(1, 2, 3, 4)).foreach(x => accum += x) *==> This >> line giving exception.* >> >> Exception :- >> >> 15/12/22 09:18:26 WARN scheduler.TaskSetManager: Lost task 1.0 in stage >> 0.0 (TID 1, 172.25.111.123): *java.lang.NullPointerException* >> at com.cc.ss.etl.Main$$anonfun$1.apply$mcVI$sp(Main.scala:25) >> at com.cc.ss.etl.Main$$anonfun$1.apply(Main.scala:25) >> at com.cc.ss.etl.Main$$anonfun$1.apply(Main.scala:25) >> at scala.collection.Iterator$class.foreach(Iterator.scala:727) >> at >> org.apache.spark.InterruptibleIterator.foreach(InterruptibleIterator.scala:28) >> at >> org.apache.spark.rdd.RDD$$anonfun$foreach$1$$anonfun$apply$28.apply(RDD.scala:890) >> at >> org.apache.spark.rdd.RDD$$anonfun$foreach$1$$anonfun$apply$28.apply(RDD.scala:890) >> at >> org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:1848) >> at >> org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:1848) >> at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:66) >> at org.apache.spark.scheduler.Task.run(Task.scala:88) >> at >> org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:214) >> at >> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) >> at >> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) >> at java.lang.Thread.run(Thread.java:745) >> >> 15/12/22 09:18:26 INFO scheduler.TaskSetManager: Lost task 0.0 in stage >> 0.0 (TID 0) on executor 172.25.111.123: java.lang.NullPointerException >> (null) [duplicate 1] >> 15/12/22 09:18:26 INFO scheduler.TaskSetManager: Starting task 0.1 in >> stage 0.0 (TID 2, 172.25.111.123, PROCESS_LOCAL, 2155 bytes) >> 15/12/22 09:18:26 INFO scheduler.TaskSetManager: Starting task 1.1 in >> stage 0.0 (TID 3, 172.25.111.123, PROCESS_LOCAL, 2155 bytes) >> 15/12/22 09:18:26 WARN scheduler.TaskSetManager: Lost task 1.1 in stage >> 0.0 (TID 3, 172.25.111.123): >> >> Regards, >> Rajesh >> > >
