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https://issues.apache.org/jira/browse/HIVE-22715?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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LuGuangMing updated HIVE-22715:
-------------------------------
Attachment: (was: sample.sql)
> SkewJoin throws NullPointException.
> -----------------------------------
>
> Key: HIVE-22715
> URL: https://issues.apache.org/jira/browse/HIVE-22715
> Project: Hive
> Issue Type: Bug
> Affects Versions: 3.1.0
> Reporter: LuGuangMing
> Priority: Major
> Attachments: sample.sql
>
>
> When hive.optimize.skewjoin=ture and hive.auto.convert.join=true it throws
> NullPointException.
> Attached SQL file for reproducing the issue.
> ERROR [main] org.apache.hadoop.hive.ql.exec.mr.ExecMapper:
> java.lang.NullPointerException at
> org.apache.hadoop.hive.ql.exec.MapJoinOperator.loadHashTableInternal(MapJoinOperator.java:333)
> at
> org.apache.hadoop.hive.ql.exec.MapJoinOperator.loadHashTable(MapJoinOperator.java:404)
> at
> org.apache.hadoop.hive.ql.exec.MapJoinOperator.cleanUpInputFileChangedOp(MapJoinOperator.java:410)
> at
> org.apache.hadoop.hive.ql.exec.Operator.cleanUpInputFileChanged(Operator.java:1225)
> at
> org.apache.hadoop.hive.ql.exec.Operator.cleanUpInputFileChanged(Operator.java:1229)
> at
> org.apache.hadoop.hive.ql.exec.Operator.cleanUpInputFileChanged(Operator.java:1229)
> at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:548)
> at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:161) at
> org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54) at
> org.apache.hadoop.hive.ql.exec.mr.ExecMapRunner.run(ExecMapRunner.java:37) at
> org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:465) at
> org.apache.hadoop.mapred.MapTask.run(MapTask.java:349) at
> org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:178) 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:1729)
> at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:172)
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