Use S3 for HIVE metastore?

Question

I'm configuring S3 to be a data warehouse for Hive. However, I'm not sure if the 'metastore' part of Hive can use S3 as a storage or not.

Most tutorials (ie https://data-flair.training/blogs/apache-hive-metastore/ ) mention that the metastore only supports Derby and a few other RDBMS.

Is that true? Configuring metastore to use s3 as storage sounds like a simple config change to me.

Answer 1

The Hive Metastore persists the metadata for Hive tables and partitions. It is backed by a relational database, and currently MySQL, Postgres, Oracle, and MS SQL Server are supported. S3 is an object store , not a relational database.

This is the ER diagram showing the various tables, columns and constraints stored in the Hive Metastore.