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  1. Apache Drill
  2. DRILL-4273

If query is cancelled during external sort memory is leaked, merge join fragment is running forever on a forman node

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Details

    • Bug
    • Status: Closed
    • Critical
    • Resolution: Fixed
    • 1.5.0
    • None
    • Execution - Flow
    • None

    Description

      Query was cancelled during external sort.

      Here is what happened:

      1. Query got stuck in CANCELLATION_REQUESTED mode: ( queryid = 2967b65e-ea42-a736-9f5d-3513914ada88 )
      2. On a forman node 6:0 (executing merge join) fragment kept running forever (see stack below)

      "2967b65e-ea42-a736-9f5d-3513914ada88:frag:6:0" daemon prio=10 tid=0x0000000001af5800 nid=0x769b runnable [0x00007fa82fc7c000]
         java.lang.Thread.State: RUNNABLE
              at java.lang.Throwable.getStackTraceElement(Native Method)
              at java.lang.Throwable.getOurStackTrace(Throwable.java:827)
              - locked <0x00000006eef95f80> (a java.lang.Exception)
              at java.lang.Throwable.getStackTrace(Throwable.java:816)
              at java.lang.Thread.getStackTrace(Thread.java:1589)
              at org.apache.drill.common.StackTrace.<init>(StackTrace.java:33)
              at org.apache.drill.common.HistoricalLog$Event.<init>(HistoricalLog.java:39)
              at org.apache.drill.common.HistoricalLog.recordEvent(HistoricalLog.java:95)
              - locked <0x00000006eef95870> (a org.apache.drill.common.HistoricalLog)
              at io.netty.buffer.DrillBuf.<init>(DrillBuf.java:84)
              at org.apache.drill.exec.memory.AllocatorManager$BufferLedger.newDrillBuf(AllocatorManager.java:285)
              at org.apache.drill.exec.memory.BaseAllocator.bufferWithoutReservation(BaseAllocator.java:222)
              at org.apache.drill.exec.memory.BaseAllocator.buffer(BaseAllocator.java:204)
              at org.apache.drill.exec.memory.BaseAllocator.buffer(BaseAllocator.java:177)
              at org.apache.drill.exec.vector.IntVector.allocateBytes(IntVector.java:201)
              at org.apache.drill.exec.vector.IntVector.allocateNew(IntVector.java:183)
              at org.apache.drill.exec.vector.NullableIntVector.allocateNew(NullableIntVector.java:216)
              at org.apache.drill.exec.vector.AllocationHelper.allocateNew(AllocationHelper.java:56)
              at org.apache.drill.exec.physical.impl.join.MergeJoinBatch.allocateBatch(MergeJoinBatch.java:429)
              at org.apache.drill.exec.physical.impl.join.MergeJoinBatch.innerNext(MergeJoinBatch.java:172)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:162)
              at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:215)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:109)
              at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51)
              at org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext(ProjectRecordBatch.java:132)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:162)
              at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:215)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:109)
              at org.apache.drill.exec.physical.impl.xsort.ExternalSortBatch.innerNext(ExternalSortBatch.java:295)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:162)
              at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:215)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:109)
              at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51)
              at org.apache.drill.exec.physical.impl.svremover.RemovingRecordBatch.innerNext(RemovingRecordBatch.java:94)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:162)
              at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:215)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119)
              at org.apache.drill.exec.record.RecordIterator.nextBatch(RecordIterator.java:97)
              at org.apache.drill.exec.record.RecordIterator.next(RecordIterator.java:183)
              at org.apache.drill.exec.record.RecordIterator.prepare(RecordIterator.java:167)
              at org.apache.drill.exec.physical.impl.join.JoinStatus.prepare(JoinStatus.java:86)
              at org.apache.drill.exec.physical.impl.join.MergeJoinBatch.innerNext(MergeJoinBatch.java:162)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:162)
              at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:215)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:109)
              at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51)
              at org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext(ProjectRecordBatch.java:132)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:162)
              at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:215)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:109)
              at org.apache.drill.exec.physical.impl.xsort.ExternalSortBatch.innerNext(ExternalSortBatch.java:295)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:162)
              at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:215)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:109)
              at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51)
              at org.apache.drill.exec.physical.impl.svremover.RemovingRecordBatch.innerNext(RemovingRecordBatch.java:94)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:162)
              at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:215)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119)
              at org.apache.drill.exec.record.RecordIterator.nextBatch(RecordIterator.java:97)
              at org.apache.drill.exec.record.RecordIterator.next(RecordIterator.java:183)
              at org.apache.drill.exec.record.RecordIterator.prepare(RecordIterator.java:167)
              at org.apache.drill.exec.physical.impl.join.JoinStatus.prepare(JoinStatus.java:86)
              at org.apache.drill.exec.physical.impl.join.MergeJoinBatch.innerNext(MergeJoinBatch.java:162)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:162)
              at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:215)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:109)
              at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51)
              at org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext(ProjectRecordBatch.java:132)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:162)
              at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:215)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:109)
              at org.apache.drill.exec.physical.impl.xsort.ExternalSortBatch.innerNext(ExternalSortBatch.java:295)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:162)
              at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:215)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:109)
              at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51)
              at org.apache.drill.exec.physical.impl.svremover.RemovingRecordBatch.innerNext(RemovingRecordBatch.java:94)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:162)
              at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:215)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119)
              at org.apache.drill.exec.record.RecordIterator.nextBatch(RecordIterator.java:97)
              at org.apache.drill.exec.record.RecordIterator.next(RecordIterator.java:183)
              at org.apache.drill.exec.record.RecordIterator.prepare(RecordIterator.java:167)
              at org.apache.drill.exec.physical.impl.join.JoinStatus.prepare(JoinStatus.java:86)
              at org.apache.drill.exec.physical.impl.join.MergeJoinBatch.innerNext(MergeJoinBatch.java:162)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:162)
              at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:215)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:109)
              at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51)
              at org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext(ProjectRecordBatch.java:132)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:162)
              at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:215)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119)
              at org.apache.drill.exec.test.generated.HashAggregatorGen53.doWork(HashAggTemplate.java:314)
              at org.apache.drill.exec.physical.impl.aggregate.HashAggBatch.innerNext(HashAggBatch.java:133)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:162)
              at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:215)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:109)
              at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51)
              at org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext(ProjectRecordBatch.java:132)
              at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:162)
              at org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:215)
              at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:104)
              at org.apache.drill.exec.physical.impl.SingleSenderCreator$SingleSenderRootExec.innerNext(SingleSenderCreator.java:92)
              at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:94)
              at org.apache.drill.exec.work.fragment.FragmentExecutor$1.run(FragmentExecutor.java:256)
              at org.apache.drill.exec.work.fragment.FragmentExecutor$1.run(FragmentExecutor.java:250)
              at java.security.AccessController.doPrivileged(Native Method)
              at javax.security.auth.Subject.doAs(Subject.java:415)
              at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1595)
              at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:250)
              at org.apache.drill.common.SelfCleaningRunnable.run(SelfCleaningRunnable.java:38)
              at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
              at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
              at java.lang.Thread.run(Thread.java:745)
      

      drillbit.log.node_133 (forman node ) had message printed forever:

      2016-01-15 01:33:28,230 [2967b65e-ea42-a736-9f5d-3513914ada88:frag:6:0] WARN  o.a.d.e.e.ExpressionTreeMaterializer - Unable to find value vector of path `ss_sold_date_sk`, returning null instance.
      

      Log is flooded with this message (node 133):

      [Thu Jan 14 18:00:15] # grep "WARN  o.a.d.e.e.ExpressionTreeMaterializer" drillbit.log |wc -l
        409187
      

      After server was restarted:

      1. Query profile was never saved in profiles directory as if it never ran
      2. I saved JSON profile off the screen just before that, can be found here: 2967b65e-ea42-a736-9f5d-3513914ada88.sys.drill
      3. drillbit.log showed leak :
      This is just a sample, full printout can be found here: after_shutdown.log

      2016-01-15 01:52:41,938 [Drillbit-ShutdownHook#0] WARN  o.apache.drill.exec.server.Drillbit - Failure on close()
      java.lang.RuntimeException: Exception while closing
              at org.apache.drill.common.DrillAutoCloseables.closeNoChecked(DrillAutoCloseables.java:46) ~[drill-common-1.5.0-SNAPSHOT.jar:1.5.0-SNAPSHOT]
              at org.apache.drill.exec.server.BootStrapContext.close(BootStrapContext.java:127) ~[drill-java-exec-1.5.0-SNAPSHOT.jar:1.5.0-SNAPSHOT]
              at org.apache.drill.common.AutoCloseables.close(AutoCloseables.java:76) ~[drill-common-1.5.0-SNAPSHOT.jar:1.5.0-SNAPSHOT]
              at org.apache.drill.common.AutoCloseables.close(AutoCloseables.java:64) ~[drill-common-1.5.0-SNAPSHOT.jar:1.5.0-SNAPSHOT]
              at org.apache.drill.exec.server.Drillbit.close(Drillbit.java:149) ~[drill-java-exec-1.5.0-SNAPSHOT.jar:1.5.0-SNAPSHOT]
              at org.apache.drill.exec.server.Drillbit$ShutdownThread.run(Drillbit.java:243) [drill-java-exec-1.5.0-SNAPSHOT.jar:1.5.0-SNAPSHOT]
      Caused by: java.lang.IllegalStateException: Allocator[ROOT] closed with outstanding child allocators.
      Allocator(ROOT) 0/186835008/681513280/51539607552 (res/actual/peak/limit)
        child allocators: 2
          Allocator(query:2967b65e-ea42-a736-9f5d-3513914ada88) 1048576/0/0/268435456 (res/actual/peak/limit)
            child allocators: 0
            ledgers: 0
            reservations: 0
          Allocator(frag:6:0) 184000000/185786432/210798976/240311229512 (res/actual/peak/limit)
            child allocators: 33
              Allocator(op:6:0:14:ExternalSort) 20000000/10000000/10073728/38903689 (res/actual/peak/limit)
                child allocators: 1
                  Allocator(op:6:0:14:ExternalSort:copier) 10000000/0/0/20000000 (res/actual/peak/limit)
                    child allocators: 0
                    ledgers: 0
                    reservations: 0
                ledgers: 0
                reservations: 0
              Allocator(op:6:0:28:ExternalSort) 20000000/10000640/10020480/38903689 (res/actual/peak/limit)
                child allocators: 1
                  Allocator(op:6:0:28:ExternalSort:copier) 10000000/0/0/20000000 (res/actual/peak/limit)
                    child allocators: 0
                    ledgers: 0
                    reservations: 0
                ledgers: 2
                  ledger (allocator: op:6:0:28:ExternalSort), isOwning: true, size: 128, references: 1
                    BufferLedger[438592] holds 1 buffers.
                      {DrillBuf[641717], udle identityHashCode == 1405213628, identityHashCode == 1547779737}
                  ledger (allocator: op:6:0:28:ExternalSort), isOwning: true, size: 512, references: 2
                    BufferLedger[438590] holds 14 buffers.
                      {DrillBuf[620704], udle identityHashCode == 1455534019, identityHashCode == 1174034356}
                      {DrillBuf[641715], udle identityHashCode == 1455534019, identityHashCode == 1896324428}
                      {DrillBuf[641716], udle identityHashCode == 1455534019, identityHashCode == 1896324428}
                      {DrillBuf[641710], udle identityHashCode == 1455534019, identityHashCode == 1896324428}
                      {DrillBuf[641707], udle identityHashCode == 1455534019, identityHashCode == 496598622}
                      {DrillBuf[641711], udle identityHashCode == 1455534019, identityHashCode == 1896324428}
                      {DrillBuf[641714], udle identityHashCode == 1455534019, identityHashCode == 1896324428}
                      {DrillBuf[620708], udle identityHashCode == 1455534019, identityHashCode == 496598622}
                      {DrillBuf[620696], udle identityHashCode == 1455534019, identityHashCode == 1174034356}
      
      • Not sure if this is reproducible case, I will try. Hope there is enough information to give it a clue on what happened.

      Attachments

        1. drillbit.log.node_136
          1.56 MB
          Victoria Markman
        2. drillbit.log.node_135
          568 kB
          Victoria Markman
        3. drillbit.log.node_134
          88 kB
          Victoria Markman
        4. drillbit.log.node_133
          8.17 MB
          Victoria Markman
        5. after_shutdown.log
          112 kB
          Victoria Markman
        6. 2967b65e-ea42-a736-9f5d-3513914ada88.sys.drill
          321 kB
          Victoria Markman

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            Unassigned Unassigned
            vicky Victoria Markman
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            Dates

              Created:
              Updated:
              Resolved: