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https://issues.apache.org/jira/browse/HIVE-14951?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15573083#comment-15573083
 ] 

Zhiyuan Yang commented on HIVE-14951:
-------------------------------------

Here's the error message:
{code:java}
Error: Error while running task ( failure ) : 
attempt_1475017598908_0282_2_02_000000_3:java.lang.RuntimeException: 
java.lang.RuntimeException: org.apache.hadoop.hive.ql.metadata.HiveException: 
Hive Runtime Error while processing row (tag=0) {"key":{"_col0":2},"value":null}
        at 
org.apache.hadoop.hive.ql.exec.tez.TezProcessor.initializeAndRunProcessor(TezProcessor.java:173)
        at 
org.apache.hadoop.hive.ql.exec.tez.TezProcessor.run(TezProcessor.java:139)
        at 
org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.run(LogicalIOProcessorRuntimeTask.java:370)
        at 
org.apache.tez.runtime.task.TaskRunner2Callable$1.run(TaskRunner2Callable.java:73)
        at 
org.apache.tez.runtime.task.TaskRunner2Callable$1.run(TaskRunner2Callable.java:61)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:422)
        at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
        at 
org.apache.tez.runtime.task.TaskRunner2Callable.callInternal(TaskRunner2Callable.java:61)
        at 
org.apache.tez.runtime.task.TaskRunner2Callable.callInternal(TaskRunner2Callable.java:37)
        at org.apache.tez.common.CallableWithNdc.call(CallableWithNdc.java:36)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.RuntimeException: 
org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while 
processing row (tag=0) {"key":{"_col0":2},"value":null}
        at 
org.apache.hadoop.hive.ql.exec.tez.ReduceRecordSource.pushRecord(ReduceRecordSource.java:284)
        at 
org.apache.hadoop.hive.ql.exec.tez.ReduceRecordProcessor.run(ReduceRecordProcessor.java:252)
        at 
org.apache.hadoop.hive.ql.exec.tez.TezProcessor.initializeAndRunProcessor(TezProcessor.java:150)
        ... 14 more
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error 
while processing row (tag=0) {"key":{"_col0":2},"value":null}
        at 
org.apache.hadoop.hive.ql.exec.tez.ReduceRecordSource$GroupIterator.next(ReduceRecordSource.java:352)
        at 
org.apache.hadoop.hive.ql.exec.tez.ReduceRecordSource.pushRecord(ReduceRecordSource.java:274)
        ... 16 more
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: 
java.lang.RuntimeException: org.apache.hadoop.hive.ql.metadata.HiveException: 
Hive Runtime Error while processing row (tag=1) {"key":{"_col0":1},"value":null}
        at 
org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator.fetchOneRow(CommonMergeJoinOperator.java:416)
        at 
org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator.fetchNextGroup(CommonMergeJoinOperator.java:379)
        at 
org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator.doFirstFetchIfNeeded(CommonMergeJoinOperator.java:485)
        at 
org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator.process(CommonMergeJoinOperator.java:207)
        at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:838)
        at 
org.apache.hadoop.hive.ql.exec.GroupByOperator.forward(GroupByOperator.java:1016)
        at 
org.apache.hadoop.hive.ql.exec.GroupByOperator.processAggr(GroupByOperator.java:821)
        at 
org.apache.hadoop.hive.ql.exec.GroupByOperator.processKey(GroupByOperator.java:695)
        at 
org.apache.hadoop.hive.ql.exec.GroupByOperator.process(GroupByOperator.java:761)
        at 
org.apache.hadoop.hive.ql.exec.tez.ReduceRecordSource$GroupIterator.next(ReduceRecordSource.java:343)
        ... 17 more
Caused by: java.lang.RuntimeException: 
org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while 
processing row (tag=1) {"key":{"_col0":1},"value":null}
        at 
org.apache.hadoop.hive.ql.exec.tez.ReduceRecordSource.pushRecord(ReduceRecordSource.java:284)
        at 
org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator.fetchOneRow(CommonMergeJoinOperator.java:404)
        ... 26 more
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error 
while processing row (tag=1) {"key":{"_col0":1},"value":null}
        at 
org.apache.hadoop.hive.ql.exec.tez.ReduceRecordSource$GroupIterator.next(ReduceRecordSource.java:352)
        at 
org.apache.hadoop.hive.ql.exec.tez.ReduceRecordSource.pushRecord(ReduceRecordSource.java:274)
        ... 27 more
Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
        at 
org.apache.hadoop.hive.ql.exec.GroupByOperator.process(GroupByOperator.java:708)
        at 
org.apache.hadoop.hive.ql.exec.tez.ReduceRecordSource$GroupIterator.next(ReduceRecordSource.java:343)
        ... 28 more
{code}

> ArrayIndexOutOfBoundsException in GroupByOperator
> -------------------------------------------------
>
>                 Key: HIVE-14951
>                 URL: https://issues.apache.org/jira/browse/HIVE-14951
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Zhiyuan Yang
>
> Query:
> select * from (select distinct a from f16) as f16, (select distinct a from 
> f1) as fprime where f16.a = fprime.a;
> Table: 
> create table f1 (a int, b string);
> create table f16 (a int, b string);
> Config:
> set hive.auto.convert.sortmerge.join=true;
> set hive.auto.convert.join=false;



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