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Posted to issues@hivemall.apache.org by "Makoto Yui (Jira)" <ji...@apache.org> on 2020/07/27 06:38:00 UTC
[jira] [Closed] (HIVEMALL-296) NPE happens in General
classifier/regressor when the number of input records is zero
[ https://issues.apache.org/jira/browse/HIVEMALL-296?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Makoto Yui closed HIVEMALL-296.
-------------------------------
Resolution: Fixed
> NPE happens in General classifier/regressor when the number of input records is zero
> ------------------------------------------------------------------------------------
>
> Key: HIVEMALL-296
> URL: https://issues.apache.org/jira/browse/HIVEMALL-296
> Project: Hivemall
> Issue Type: Bug
> Affects Versions: 0.6.0
> Reporter: Makoto Yui
> Assignee: Makoto Yui
> Priority: Minor
> Fix For: 0.6.2
>
>
> The following error happens when the number of input records is zero.
> {code}
> Caused by: java.lang.NullPointerException
> at hivemall.GeneralLearnerBaseUDTF.forwardModel(GeneralLearnerBaseUDTF.java:763)
> at hivemall.GeneralLearnerBaseUDTF.close(GeneralLearnerBaseUDTF.java:560)
> at org.apache.hadoop.hive.ql.exec.UDTFOperator.closeOp(UDTFOperator.java:152)
> 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.mr.ExecReducer.close(ExecReducer.java:279)
> {code}
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