[DRILL-5744] External sort fails with OOM error

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.10.0
• Fix Version/s: 1.12.0
• Component/s: Execution - Relational Operators
• Assignee: Paul Rogers
• Reporter: Robert Hou
• Created: 28/Aug/17 18:40
• Updated: 11/Sep/17 19:57
• Resolved: 11/Sep/17 19:57

Description

Query is:

ALTER SESSION SET `exec.sort.disable_managed` = false;
alter session set `planner.width.max_per_node` = 1;
alter session set `planner.disable_exchanges` = true;
alter session set `planner.width.max_per_query` = 1;
alter session set `planner.memory.max_query_memory_per_node` = 152428800;
select count(*) from (
  select * from (
    select s1.type type, flatten(s1.rms.rptd) rptds, s1.rms, s1.uid 
    from (
      select d.type type, d.uid uid, flatten(d.map.rm) rms from dfs.`/drill/testdata/resource-manager/nested-large.json` d order by d.uid
    ) s1
  ) s2
  order by s2.rms.mapid
);
ALTER SESSION SET `exec.sort.disable_managed` = true;
alter session set `planner.width.max_per_node` = 17;
alter session set `planner.disable_exchanges` = false;
alter session set `planner.width.max_per_query` = 1000;
alter session set `planner.memory.max_query_memory_per_node` = 2147483648;

Stack trace is:

2017-08-23 06:59:42,763 [266275e5-ebdb-14ae-d52d-00fa3a154f6d:frag:0:0] INFO  o.a.d.e.w.fragment.FragmentExecutor - User Error Occurred: One or more nodes
 ran out of memory while executing the query. (Unable to allocate buffer of size 4194304 (rounded from 3276750) due to memory limit. Current allocation: 7
9986944)
org.apache.drill.common.exceptions.UserException: RESOURCE ERROR: One or more nodes ran out of memory while executing the query.

Unable to allocate buffer of size 4194304 (rounded from 3276750) due to memory limit. Current allocation: 79986944

[Error Id: 4f4959df-0921-4a50-b75e-56488469ab10 ]
	at org.apache.drill.common.exceptions.UserException$Builder.build(UserException.java:550) ~[drill-common-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:244) [drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.common.SelfCleaningRunnable.run(SelfCleaningRunnable.java:38) [drill-common-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_51]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_51]
	at java.lang.Thread.run(Thread.java:744) [na:1.7.0_51]
Caused by: org.apache.drill.exec.exception.OutOfMemoryException: Unable to allocate buffer of size 4194304 (rounded from 3276750) due to memory limit. Cur
rent allocation: 79986944
	at org.apache.drill.exec.memory.BaseAllocator.buffer(BaseAllocator.java:238) ~[drill-memory-base-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.memory.BaseAllocator.buffer(BaseAllocator.java:213) ~[drill-memory-base-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.vector.VarCharVector.allocateNew(VarCharVector.java:402) ~[vector-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.vector.NullableVarCharVector.allocateNew(NullableVarCharVector.java:236) ~[vector-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.vector.AllocationHelper.allocatePrecomputedChildCount(AllocationHelper.java:33) ~[vector-1.12.0-SNAPSHOT.jar:1.12.0-SNAPS
HOT]
	at org.apache.drill.exec.vector.AllocationHelper.allocate(AllocationHelper.java:46) ~[vector-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.record.VectorInitializer.allocateVector(VectorInitializer.java:113) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT
]
	at org.apache.drill.exec.record.VectorInitializer.allocateVector(VectorInitializer.java:95) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.record.VectorInitializer.allocateMap(VectorInitializer.java:130) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.record.VectorInitializer.allocateVector(VectorInitializer.java:93) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.record.VectorInitializer.allocateBatch(VectorInitializer.java:85) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.physical.impl.xsort.managed.PriorityQueueCopierWrapper$BatchMerger.next(PriorityQueueCopierWrapper.java:262) ~[drill-java
-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.physical.impl.xsort.managed.ExternalSortBatch.load(ExternalSortBatch.java:374) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12
.0-SNAPSHOT]
	at org.apache.drill.exec.physical.impl.xsort.managed.ExternalSortBatch.innerNext(ExternalSortBatch.java:303) ~[drill-java-exec-1.12.0-SNAPSHOT.jar
:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:164) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:109) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.
0-SNAPSHOT]
	at org.apache.drill.exec.physical.impl.svremover.RemovingRecordBatch.innerNext(RemovingRecordBatch.java:93) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:
1.12.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:164) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:109) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.
0-SNAPSHOT]
	at org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext(ProjectRecordBatch.java:133) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.1
2.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:164) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:109) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.physical.impl.aggregate.StreamingAggBatch.innerNext(StreamingAggBatch.java:151) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.1
2.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:164) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:109) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.
0-SNAPSHOT]
	at org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext(ProjectRecordBatch.java:133) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.1
2.0-SNAPSHOT]
	at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:164) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:105) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.physical.impl.ScreenCreator$ScreenRoot.innerNext(ScreenCreator.java:81) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAP
SHOT]
	at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:95) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.work.fragment.FragmentExecutor$1.run(FragmentExecutor.java:234) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at org.apache.drill.exec.work.fragment.FragmentExecutor$1.run(FragmentExecutor.java:227) ~[drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	at java.security.AccessController.doPrivileged(Native Method) ~[na:1.7.0_51]
	at javax.security.auth.Subject.doAs(Subject.java:415) ~[na:1.7.0_51]
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1595) ~[hadoop-common-2.7.0-mapr-1607.jar:na]
	at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:227) [drill-java-exec-1.12.0-SNAPSHOT.jar:1.12.0-SNAPSHOT]
	... 4 common frames omitted

commit-id:
1.12.0-SNAPSHOT e9065b55ea560e7f737d6fcb4948f9e945b9b14f DRILL-5660: Parquet metadata caching improvements 15.08.2017 @ 09:31:00 PDT Unknown 15.08.2017 @ 12:02:27 PDT

q34 single

Issue Links

• Is contained by: DRILL-5758 Rollup of external sort fixes to issues found by QA