Hey @avengers,   Just thought, this could add some more value to this question here.   Spark SQL uses a Hive Metastore to manage the metadata of persistent relational entities (e.g. databases, tables, columns, partitions) in a relational database (for fast access) [1].   Also, I don't think there would be a MetaStore crash if we use it along with HiveOnSpark.   [1] https://jaceklaskowski.gitbooks.io/mastering-spark-sql/spark-sql-hive-metastore.html ... View more