What Is Spark Metastore?
What Is Spark Metastore? A Hive metastore warehouse (aka spark-warehouse) is the directory where Spark SQL persists tables whereas a Hive metastore (aka metastore_db) is a relational database to manage the metadata of the persistent relational entities, e.g. databases, tables, columns, partitions. What is a Metastore? Metastore is the central repository of Apache Hive metadata.