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From "Ryu Kobayashi (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-20318) NullPointerException when union with lateral view
Date Fri, 11 Jan 2019 07:22:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-20318?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ryu Kobayashi updated HIVE-20318:
---------------------------------
    Attachment:     (was: HIVE-20318.01.patch)

> NullPointerException when union with lateral view
> -------------------------------------------------
>
>                 Key: HIVE-20318
>                 URL: https://issues.apache.org/jira/browse/HIVE-20318
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 3.0.0, 2.3.2, 3.1.0, 3.1.1
>         Environment: Run on MR, hadoop 2.7.3 and Tez
>            Reporter: Wang Yan
>            Assignee: Ryu Kobayashi
>            Priority: Blocker
>
> The following sql throws NullPointerException.
> This sql is not table/data specific and can be run directly.
> {code:sql}
> WITH 
> t1 AS (SELECT 0 AS c1),
> t2 AS (
> 	SELECT 0 AS c1
> 	FROM (
> 		SELECT COLLECT_SET('line') AS c2
> 	     ) t3 lateral VIEW explode(ARRAY("a")) er AS c3
>       )
> SELECT c1
> FROM t1
> UNION ALL
> SELECT c1
> FROM t2
> {code}
> This is the exception.
> {code:java}
>  2018-04-20 01:53:50,845 WARN [Thread-5] org.apache.hadoop.mapred.YarnChild: Exception
running child : java.lang.RuntimeException: Hive Runtime Error while closing operators
>  at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.close(ExecMapper.java:207)
>  at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:61)
>  at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:453)
>  at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)
>  at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164)
>  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:1698)
>  at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
>  Caused by: java.lang.NullPointerException
>  at org.apache.hadoop.hive.conf.HiveConf.getVar(HiveConf.java:3901)
>  at org.apache.hadoop.hive.ql.exec.FileSinkOperator.closeOp(FileSinkOperator.java:1020)
>  at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:697)
>  at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:711)
>  at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:711)
>  at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:711)
>  at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.close(ExecMapper.java:189)
>  ... 8 more
> {code}



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