Github user SaintBacchus commented on the pull request:
https://github.com/apache/spark/pull/9026#issuecomment-147660393
Actually there are two metastores. In hive-1.2.1 when we use
`metastoe.Hive`, it will create the metastore in static code block. As spark
have two class loader(main class loader and hive metastore class loader), there
will be two metasotres.
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