[
https://issues.apache.org/jira/browse/HIVE-2929?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Siying Dong updated HIVE-2929:
------------------------------
Resolution: Fixed
Status: Resolved (was: Patch Available)
> race condition in DAG execute tasks for hive
> --------------------------------------------
>
> Key: HIVE-2929
> URL: https://issues.apache.org/jira/browse/HIVE-2929
> Project: Hive
> Issue Type: Bug
> Reporter: Namit Jain
> Assignee: Namit Jain
> Attachments: hive.2929.1.patch
>
>
> select ...
> (
> SubQuery involving MapReduce
> union all
> SubQuery involving MapReduce
> );
> or
> select ...
> (SubQuery involving MapReduce)
> join
> (SubQuery involving MapReduce)
> ;
> If both the subQueries finish at nearly the same time, there is a race
> condition in which the results of the subQuery finishing last will be
> completely missed.
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