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https://issues.apache.org/jira/browse/HIVE-8497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14175385#comment-14175385
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Prasanth J commented on HIVE-8497:
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LGTM, +1
> StatsNoJobTask doesn't close RecordReader, FSDataInputStream of which keeps
> open to prevent stale data clean
> ------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-8497
> URL: https://issues.apache.org/jira/browse/HIVE-8497
> Project: Hive
> Issue Type: Bug
> Affects Versions: 0.14.0
> Environment: Windows
> Reporter: Xiaobing Zhou
> Assignee: Xiaobing Zhou
> Priority: Critical
> Attachments: HIVE-8497.1.patch
>
>
> run the test
> {noformat}
> mvn -Phadoop-2 test -Dtest=TestCliDriver -Dqfile=alter_merge_stats_orc.q
> {noformat}
> to reproduce it. Simply, this query does three data loads which generates
> three base orc files.
> ANALYZE TABLE...COMPUTE STATISTICS NOSCAN will execute StatsNoJobTask to get
> stats, where file handle is held so as not able to clean base file. As a
> result, after running ALTER TABLE..CONCATENATE, follow-up queries go to stale
> base file and merged file.
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