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https://issues.apache.org/jira/browse/HIVE-13223?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15232725#comment-15232725
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Ashutosh Chauhan commented on HIVE-13223:
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HIVE-13040 has two changes. One is to not generate 0-length files when its
known that they don't contain any data and other is to skip 0-length file while
generating splits. This second change may result in a job which has no split
e.g. when buckets are empty. For exact repro, you may run any of the failures
reported by HiveQA here, e.g.
orc_merge5,orc_merge6,vector_outer_join1,vector_outer_join4 etc.
> HoS may hang for queries that run on 0 splits
> -----------------------------------------------
>
> Key: HIVE-13223
> URL: https://issues.apache.org/jira/browse/HIVE-13223
> Project: Hive
> Issue Type: Bug
> Components: Spark
> Affects Versions: 2.1.0
> Reporter: Ashutosh Chauhan
> Assignee: Ashutosh Chauhan
> Attachments: HIVE-13223.1.patch, HIVE-13223.2.patch, HIVE-13223.patch
>
>
> Can be seen on all timed out tests after HIVE-13040 went in
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