[SPARK-22517] NullPointerException in ShuffleExternalSorter.spill()

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 2.2.0
• Component/s: Spark Core
• Assignee: Unassigned
• Reporter: Andreas Maier
• Created: 14/Nov/17 09:21
• Updated: 11/Jan/18 15:58
• Resolved: 11/Jan/18 15:58

Description

I see a NullPointerException during sorting with the following stacktrace:

17/11/13 15:02:56 ERROR Executor: Exception in task 138.0 in stage 9.0 (TID 13497)
java.lang.NullPointerException
        at org.apache.spark.memory.TaskMemoryManager.getPage(TaskMemoryManager.java:383)
        at org.apache.spark.shuffle.sort.ShuffleExternalSorter.writeSortedFile(ShuffleExternalSorter.java:193)
        at org.apache.spark.shuffle.sort.ShuffleExternalSorter.spill(ShuffleExternalSorter.java:254)
        at org.apache.spark.memory.TaskMemoryManager.acquireExecutionMemory(TaskMemoryManager.java:203)
        at org.apache.spark.memory.TaskMemoryManager.allocatePage(TaskMemoryManager.java:281)
        at org.apache.spark.memory.MemoryConsumer.allocateArray(MemoryConsumer.java:90)
        at org.apache.spark.shuffle.sort.ShuffleInMemorySorter.reset(ShuffleInMemorySorter.java:100)
        at org.apache.spark.shuffle.sort.ShuffleExternalSorter.spill(ShuffleExternalSorter.java:256)
        at org.apache.spark.memory.TaskMemoryManager.acquireExecutionMemory(TaskMemoryManager.java:203)
        at org.apache.spark.memory.TaskMemoryManager.allocatePage(TaskMemoryManager.java:281)
        at org.apache.spark.memory.MemoryConsumer.allocateArray(MemoryConsumer.java:90)
        at org.apache.spark.shuffle.sort.ShuffleExternalSorter.growPointerArrayIfNecessary(ShuffleExternalSorter.java:328)
        at org.apache.spark.shuffle.sort.ShuffleExternalSorter.insertRecord(ShuffleExternalSorter.java:379)
        at org.apache.spark.shuffle.sort.UnsafeShuffleWriter.insertRecordIntoSorter(UnsafeShuffleWriter.java:246)
        at org.apache.spark.shuffle.sort.UnsafeShuffleWriter.write(UnsafeShuffleWriter.java:167)
        at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:96)
        at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:53)
        at org.apache.spark.scheduler.Task.run(Task.scala:108)
        at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:335)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)

Issue Links

• duplicates: SPARK-21907 NullPointerException in UnsafeExternalSorter.spill()