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From "Davies Liu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-9946) TaskMemoryManager is not thread safe
Date Thu, 13 Aug 2015 20:52:46 GMT
Davies Liu created SPARK-9946:
---------------------------------

             Summary: TaskMemoryManager is not thread safe
                 Key: SPARK-9946
                 URL: https://issues.apache.org/jira/browse/SPARK-9946
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 1.5.0
            Reporter: Davies Liu
            Assignee: Davies Liu
            Priority: Blocker


{code}
Failed to execute query using catalyst:
[info]   Error: Job aborted due to stage failure: Task 6 in stage 6801.0 failed 1 times, most
recent failure: Lost task 6.0 in stage 6801.0 (TID 41123, localhost): java.lang.NullPointerException
[info]   	at org.apache.spark.unsafe.memory.TaskMemoryManager.getPage(TaskMemoryManager.java:226)
[info]   	at org.apache.spark.util.collection.unsafe.sort.UnsafeInMemorySorter$SortedIterator.loadNext(UnsafeInMemorySorter.java:165)
[info]   	at org.apache.spark.sql.execution.UnsafeExternalRowSorter$1.next(UnsafeExternalRowSorter.java:142)
[info]   	at org.apache.spark.sql.execution.UnsafeExternalRowSorter$1.next(UnsafeExternalRowSorter.java:129)
[info]   	at org.apache.spark.sql.execution.RowIteratorFromScala.advanceNext(RowIterator.scala:84)
[info]   	at org.apache.spark.sql.execution.joins.SortMergeJoinScanner.advancedBufferedToRowWithNullFreeJoinKey(SortMergeJoin.scala:302)
[info]   	at org.apache.spark.sql.execution.joins.SortMergeJoinScanner.findNextInnerJoinRows(SortMergeJoin.scala:218)
[info]   	at org.apache.spark.sql.execution.joins.SortMergeJoin$$anonfun$doExecute$1$$anon$1.advanceNext(SortMergeJoin.scala:110)
[info]   	at org.apache.spark.sql.execution.RowIteratorToScala.hasNext(RowIterator.scala:68)
[info]   	at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:327)
[info]   	at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:327)
[info]   	at org.apache.spark.shuffle.sort.BypassMergeSortShuffleWriter.insertAll(BypassMergeSortShuffleWriter.java:99)
[info]   	at org.apache.spark.shuffle.sort.SortShuffleWriter.write(SortShuffleWriter.scala:73)
[info]   	at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:73)
[info]   	at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41)
[info]   	at org.apache.spark.scheduler.Task.run(Task.scala:88)
[info]   	at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:214)
13:27:17.435 WARN org.apache.spark.scheduler.TaskSetManager: Lost task 23.0 in stage 6801.0
(TID 41140, localhost): TaskKilled (killed intentionally)
[info]   	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[info]   	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
13:27:17.436 WARN org.apache.spark.scheduler.TaskSetManager: Lost task 12.0 in stage 6801.0
(TID 41129, localhost): TaskKilled (killed intentionally)
[info]   	at java.lang.Thread.run(Thread.java:745)
{code}



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