[HIVE-9886] Hive on tez: NPE when converting join to SMB in sub-query

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.0.0, 1.1.0
• Fix Version/s: 1.0.0, 1.2.0
• Component/s: Tez
• Assignee: Vikram Dixit K
• Reporter: Vikram Dixit K
• Created: 06/Mar/15 21:37
• Updated: 18/May/15 19:49
• Resolved: 19/Mar/15 19:33

Description

set hive.auto.convert.sortmerge.join = true;

create table t1(
id string,
od string);

create table t2(
id string,
od string);

select vt1.id from
(select rt1.id from
(select t1.id, row_number() over (partition by id order by od desc) as row_no from t1) rt1
where rt1.row_no=1) vt1
join
(select rt2.id from
(select t2.id, row_number() over (partition by id order by od desc) as row_no from t2) rt2
where rt2.row_no=1) vt2
where vt1.id=vt2.id;

throws NPE:

	at org.apache.hadoop.hive.ql.exec.tez.ReduceRecordProcessor.init(ReduceRecordProcessor.java:146)
	at org.apache.hadoop.hive.ql.exec.tez.TezProcessor.initializeAndRunProcessor(TezProcessor.java:162)
	at org.apache.hadoop.hive.ql.exec.tez.TezProcessor.run(TezProcessor.java:138)
	at org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.run(LogicalIOProcessorRuntimeTask.java:324)
	at org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:176)
	at org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:168)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:415)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
	at org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.call(TezTaskRunner.java:168)
	at org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.call(TezTaskRunner.java:163)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.NullPointerException
	at org.apache.hadoop.hive.ql.exec.AbstractMapJoinOperator.getValueObjectInspectors(AbstractMapJoinOperator.java:96)
	at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.getJoinOutputObjectInspector(CommonJoinOperator.java:167)
	at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.initializeOp(CommonJoinOperator.java:310)
	at org.apache.hadoop.hive.ql.exec.AbstractMapJoinOperator.initializeOp(AbstractMapJoinOperator.java:72)
	at org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator.initializeOp(CommonMergeJoinOperator.java:89)
	at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:385)
	at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:469)
	at org.apache.hadoop.hive.ql.exec.Operator.initializeChildren(Operator.java:425)
	at org.apache.hadoop.hive.ql.exec.SelectOperator.initializeOp(SelectOperator.java:65)
	at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:385)
	at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:469)
	at org.apache.hadoop.hive.ql.exec.Operator.initializeChildren(Operator.java:425)
	at org.apache.hadoop.hive.ql.exec.FilterOperator.initializeOp(FilterOperator.java:66)
	at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:385)
	at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:469)
	at org.apache.hadoop.hive.ql.exec.Operator.initializeChildren(Operator.java:425)
	at org.apache.hadoop.hive.ql.exec.Operator.initializeOp(Operator.java:410)
	at org.apache.hadoop.hive.ql.exec.PTFOperator.initializeOp(PTFOperator.java:89)
	at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:385)
	at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:469)
	at org.apache.hadoop.hive.ql.exec.Operator.initializeChildren(Operator.java:425)
	at org.apache.hadoop.hive.ql.exec.ExtractOperator.initializeOp(ExtractOperator.java:40)
	at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:385)
	at org.apache.hadoop.hive.ql.exec.tez.ReduceRecordProcessor.init(ReduceRecordProcessor.java:116)
	... 14 more

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