[ 
https://issues.apache.org/jira/browse/SPARK-13210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16005588#comment-16005588
 ] 

David McWhorter commented on SPARK-13210:
-----------------------------------------

[~srowen] Here's the error from Spark 2.1.1 with assertions enabled:

[Stage 28:>  (0 + 7) / 60][Stage 36:>  (7 + 1) / 93][Stage 37:>  (0 + 0) / 
11]2017-05-10 18:43:05 ERROR TaskContextImpl:91 - Error in 
TaskCompletionListener
java.lang.AssertionError
        at 
org.apache.spark.memory.TaskMemoryManager.freePage(TaskMemoryManager.java:288)
        at 
org.apache.spark.memory.MemoryConsumer.freePage(MemoryConsumer.java:140)
        at 
org.apache.spark.memory.MemoryConsumer.freeArray(MemoryConsumer.java:110)
        at 
org.apache.spark.util.collection.unsafe.sort.UnsafeInMemorySorter.free(UnsafeInMemorySorter.java:166)
        at 
org.apache.spark.util.collection.unsafe.sort.UnsafeExternalSorter.cleanupResources(UnsafeExternalSorter.java:329)
        at 
org.apache.spark.util.collection.unsafe.sort.UnsafeExternalSorter$1.onTaskCompletion(UnsafeExternalSorter.java:169)
        at 
org.apache.spark.TaskContextImpl$$anonfun$markTaskCompleted$1.apply(TaskContextImpl.scala:97)
        at 
org.apache.spark.TaskContextImpl$$anonfun$markTaskCompleted$1.apply(TaskContextImpl.scala:95)
        at 
scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
        at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)
        at 
org.apache.spark.TaskContextImpl.markTaskCompleted(TaskContextImpl.scala:95)
        at org.apache.spark.scheduler.Task.run(Task.scala:112)
        at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:322)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
2017-05-10 18:43:06 ERROR Executor:91 - Exception in task 1.0 in stage 28.0 
(TID 465)
org.apache.spark.util.TaskCompletionListenerException
        at 
org.apache.spark.TaskContextImpl.markTaskCompleted(TaskContextImpl.scala:105)
        at org.apache.spark.scheduler.Task.run(Task.scala:112)
        at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:322)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
[Stage 28:>  (0 + 8) / 60][Stage 36:>  (7 + 1) / 93][Stage 37:>  (0 + 0) / 
11]2017-05-10 18:43:06 WARN  TaskSetManager:66 - Lost task 1.0 in stage 28.0 
(TID 465, localhost, executor driver): 
org.apache.spark.util.TaskCompletionListenerException
        at 
org.apache.spark.TaskContextImpl.markTaskCompleted(TaskContextImpl.scala:105)
        at org.apache.spark.scheduler.Task.run(Task.scala:112)
        at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:322)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)

2017-05-10 18:43:06 ERROR TaskSetManager:70 - Task 1 in stage 28.0 failed 1 
times; aborting job


> NPE in Sort
> -----------
>
>                 Key: SPARK-13210
>                 URL: https://issues.apache.org/jira/browse/SPARK-13210
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 1.6.0, 2.0.0
>            Reporter: Davies Liu
>            Assignee: Davies Liu
>            Priority: Critical
>             Fix For: 1.6.1, 2.0.0
>
>
> When run TPCDS query Q78 with scale 10:
> {code}
> 16/02/04 22:39:09 ERROR Executor: Managed memory leak detected; size = 
> 268435456 bytes, TID = 143
> 16/02/04 22:39:09 ERROR Executor: Exception in task 0.0 in stage 47.0 (TID 
> 143)
> java.lang.NullPointerException
>       at 
> org.apache.spark.memory.TaskMemoryManager.getPage(TaskMemoryManager.java:333)
>       at 
> org.apache.spark.util.collection.unsafe.sort.UnsafeInMemorySorter$SortComparator.compare(UnsafeInMemorySorter.java:60)
>       at 
> org.apache.spark.util.collection.unsafe.sort.UnsafeInMemorySorter$SortComparator.compare(UnsafeInMemorySorter.java:39)
>       at 
> org.apache.spark.util.collection.TimSort.countRunAndMakeAscending(TimSort.java:270)
>       at org.apache.spark.util.collection.TimSort.sort(TimSort.java:142)
>       at org.apache.spark.util.collection.Sorter.sort(Sorter.scala:37)
>       at 
> org.apache.spark.util.collection.unsafe.sort.UnsafeInMemorySorter.getSortedIterator(UnsafeInMemorySorter.java:239)
>       at 
> org.apache.spark.util.collection.unsafe.sort.UnsafeExternalSorter.getSortedIterator(UnsafeExternalSorter.java:415)
>       at 
> org.apache.spark.sql.execution.UnsafeExternalRowSorter.sort(UnsafeExternalRowSorter.java:116)
>       at 
> org.apache.spark.sql.execution.UnsafeExternalRowSorter.sort(UnsafeExternalRowSorter.java:168)
>       at org.apache.spark.sql.execution.Sort$$anonfun$1.apply(Sort.scala:87)
>       at org.apache.spark.sql.execution.Sort$$anonfun$1.apply(Sort.scala:60)
>       at 
> org.apache.spark.rdd.RDD$$anonfun$mapPartitionsInternal$1$$anonfun$apply$23.apply(RDD.scala:735)
>       at 
> org.apache.spark.rdd.RDD$$anonfun$mapPartitionsInternal$1$$anonfun$apply$23.apply(RDD.scala:735)
>       at 
> org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38)
>       at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:313)
>       at org.apache.spark.rdd.RDD.iterator(RDD.scala:277)
>       at 
> org.apache.spark.rdd.ZippedPartitionsRDD2.compute(ZippedPartitionsRDD.scala:88)
>       at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:313)
>       at org.apache.spark.rdd.RDD.iterator(RDD.scala:277)
>       at 
> org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38)
>       at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:313)
>       at org.apache.spark.rdd.RDD.iterator(RDD.scala:277)
>       at 
> org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38)
>       at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:313)
>       at org.apache.spark.rdd.RDD.iterator(RDD.scala:277)
>       at 
> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:77)
>       at 
> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:45)
>       at org.apache.spark.scheduler.Task.run(Task.scala:81)
>       at org.apache.spark.executor.Executor$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)
> {code}



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