Aman Sinha created DRILL-3779:
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Summary: NPE during mergeAndSpill operation of external sort
Key: DRILL-3779
URL: https://issues.apache.org/jira/browse/DRILL-3779
Project: Apache Drill
Issue Type: Bug
Components: Execution - Relational Operators
Affects Versions: 1.1.0
Reporter: Aman Sinha
Assignee: Aman Sinha
For a query of the following pattern:
{code}
alter session set `planner.enable_hashjoin` = false;
alter session set `planner.width.max_per_node` = 6;
select
t1.c1, t1.c2....t1.c50
from t1 left outer join t2 on ..
left outer join t3 on ...
left outer join t4 on ...
left outer join t5 on ...
where t2.col between t1.c1 and t1.c2
{code}
we get an NPE below. The dataset is large so I cannot attach it here. Will
try to get a repro with smaller data.
{code}
java.sql.SQLException: SYSTEM ERROR: NullPointerException
Fragment 5:0
[Error Id: 3df8da3d-dee2-45d4-9a0a-abaa0ab3775e on se-node11.se.lab:31010]
(java.lang.NullPointerException) null
org.apache.drill.exec.physical.impl.xsort.ExternalSortBatch.getBufferSize():523
org.apache.drill.exec.physical.impl.xsort.ExternalSortBatch.mergeAndSpill():461
org.apache.drill.exec.physical.impl.xsort.ExternalSortBatch.innerNext():334
org.apache.drill.exec.record.AbstractRecordBatch.next():147
org.apache.drill.exec.record.AbstractRecordBatch.next():105
org.apache.drill.exec.record.AbstractRecordBatch.next():95
org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext():51
org.apache.drill.exec.physical.impl.svremover.RemovingRecordBatch.innerNext():92
org.apache.drill.exec.record.AbstractRecordBatch.next():147
org.apache.drill.exec.record.AbstractRecordBatch.next():105
org.apache.drill.exec.physical.impl.join.JoinStatus.nextLeft():127
org.apache.drill.exec.physical.impl.join.JoinStatus.ensureInitial():143
org.apache.drill.exec.physical.impl.join.MergeJoinBatch.innerNext():171
org.apache.drill.exec.record.AbstractRecordBatch.next():147
org.apache.drill.exec.record.AbstractRecordBatch.next():105
org.apache.drill.exec.record.AbstractRecordBatch.next():95
org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext():51
{code}
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