Re: NullPointerException

[Saurabh Guru]

I am using the following versions:

<dependency>
                        <groupId>org.apache.spark</groupId>
                        <artifactId>spark-streaming_2.10</artifactId>
                        <version>1.6.0</version>
                </dependency>

                <dependency>
                        <groupId>org.apache.spark</groupId>
                        <artifactId>spark-streaming-kafka_2.10</artifactId>
                        <version>1.6.0</version>
                </dependency>

                <dependency>
                        <groupId>org.elasticsearch</groupId>
                        <artifactId>elasticsearch-spark_2.10</artifactId>
                        <version>2.2.0</version>
                </dependency>

Thanks,
Saurabh

:)



> On 12-Mar-2016, at 12:56 PM, Ted Yu <yuzhih...@gmail.com> wrote:
> 
> Which Spark release do you use ?
> 
> I wonder if the following may have fixed the problem:
> SPARK-8029 Robust shuffle writer
> 
> JIRA is down, cannot check now.
> 
> On Fri, Mar 11, 2016 at 11:01 PM, Saurabh Guru <saurabh.g...@gmail.com 
> <mailto:saurabh.g...@gmail.com>> wrote:
> I am seeing the following exception in my Spark Cluster every few days in 
> production.
> 
> 2016-03-12 05:30:00,541 - WARN  TaskSetManager - Lost task 0.0 in stage 
> 12528.0 (TID 18792, ip-1X-1XX-1-1XX.us 
> <http://ip-10-180-1-188.us/>-west-1.compute.internal
> ): java.lang.NullPointerException
>        at 
> org.apache.spark.util.collection.ExternalSorter.insertAll(ExternalSorter.scala:192)
>        at 
> org.apache.spark.shuffle.sort.SortShuffleWriter.write(SortShuffleWriter.scala:64)
>        at 
> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:73)
>        at 
> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41)
>        at org.apache.spark.scheduler.Task.run(Task.scala:89)
>        at 
> org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:213)
>        at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>        at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>        at java.lang.Thread.run(Thread.java:745)
> 
> 
> I have debugged in local machine but haven’t been able to pin point the cause 
> of the error. Anyone knows why this might occur? Any suggestions? 
> 
> 
> Thanks,
> Saurabh
> 
> 
> 
>