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https://issues.apache.org/jira/browse/HIVE-11013?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14612703#comment-14612703
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Vikram Dixit K commented on HIVE-11013:
---------------------------------------
+1. I vaguely remember having this code. Not sure if/when it got dropped. Good
catch.
> LLAP: MiniTez tez_join_hash test on the branch fails with NPE (initializeOp
> not called?)
> ----------------------------------------------------------------------------------------
>
> Key: HIVE-11013
> URL: https://issues.apache.org/jira/browse/HIVE-11013
> Project: Hive
> Issue Type: Sub-task
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Attachments: HIVE-11013.patch
>
>
> Line numbers are shifted due to logging; the NPE is at
> {noformat}
> hashMapRowGetters = new ReusableGetAdaptor[mapJoinTables.length];
> {noformat}
> So looks like mapJoinTables is null.
> I added logging to see if they could be set to null from cache, but that
> doesn't seem to be the case.
> Looks like initializeOp is not called.
> {noformat}
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Unexpected
> exception from MapJoinOperator : null
> at
> org.apache.hadoop.hive.ql.exec.MapJoinOperator.process(MapJoinOperator.java:428)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:872)
> at
> org.apache.hadoop.hive.ql.exec.SelectOperator.process(SelectOperator.java:87)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:872)
> at
> org.apache.hadoop.hive.ql.exec.CommonJoinOperator.internalForward(CommonJoinOperator.java:643)
> at
> org.apache.hadoop.hive.ql.exec.CommonJoinOperator.genUniqueJoinObject(CommonJoinOperator.java:656)
> at
> org.apache.hadoop.hive.ql.exec.CommonJoinOperator.genUniqueJoinObject(CommonJoinOperator.java:659)
> at
> org.apache.hadoop.hive.ql.exec.CommonJoinOperator.checkAndGenObject(CommonJoinOperator.java:755)
> at
> org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator.joinObject(CommonMergeJoinOperator.java:315)
> at
> org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator.joinOneGroup(CommonMergeJoinOperator.java:278)
> at
> org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator.joinOneGroup(CommonMergeJoinOperator.java:271)
> at
> org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator.process(CommonMergeJoinOperator.java:257)
> at
> org.apache.hadoop.hive.ql.exec.tez.ReduceRecordSource$GroupIterator.next(ReduceRecordSource.java:361)
> ... 17 more
> Caused by: java.lang.NullPointerException
> at
> org.apache.hadoop.hive.ql.exec.MapJoinOperator.process(MapJoinOperator.java:339)
> ... 29 more
> {noformat}
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