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https://issues.apache.org/jira/browse/SPARK-12690?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-12690:
------------------------------------
Assignee: Apache Spark
> NullPointerException in UnsafeInMemorySorter.free()
> ---------------------------------------------------
>
> Key: SPARK-12690
> URL: https://issues.apache.org/jira/browse/SPARK-12690
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 1.6.0
> Reporter: Carson Wang
> Assignee: Apache Spark
> Priority: Minor
>
> {code}
> ERROR spark.TaskContextImpl: Error in TaskCompletionListener
> java.lang.NullPointerException
> at
> org.apache.spark.util.collection.unsafe.sort.UnsafeInMemorySorter.free(UnsafeInMemorySorter.java:110)
> at
> org.apache.spark.util.collection.unsafe.sort.UnsafeExternalSorter.cleanupResources(UnsafeExternalSorter.java:288)
> at
> org.apache.spark.util.collection.unsafe.sort.UnsafeExternalSorter$1.onTaskCompletion(UnsafeExternalSorter.java:141)
> at
> org.apache.spark.TaskContextImpl$$anonfun$markTaskCompleted$1.apply(TaskContextImpl.scala:79)
> at
> org.apache.spark.TaskContextImpl$$anonfun$markTaskCompleted$1.apply(TaskContextImpl.scala:77)
> at
> scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
> at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47)
> at
> org.apache.spark.TaskContextImpl.markTaskCompleted(TaskContextImpl.scala:77)
> at org.apache.spark.scheduler.Task.run(Task.scala:91)
> at
> org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:213)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> at java.lang.Thread.run(Thread.java:722)
> {code}
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