Github user liancheng commented on the pull request:
https://github.com/apache/spark/pull/3834#issuecomment-68330655
According to my earlier investigation, this issue seems to be related to
the asynchronous execution feature enabled by default in Hive 0.13.1 JDBC
driver. I'm not pretty sure whether synchronizes `HiveContext.runHive`
completely fixes this issue. But I'd vote to merge this first before we find
the root cause, since doing so does no harm.
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