Starting with Catalogs
MariaDB starting with 11.8
Catalog support is planned for 11.8.
Contents
Background
mariadb-install-db initializes the MariaDB data directory and creates the system tables in the mysql database.
When used with the --catalog options it will initialize MariaDB server to use catalogs.
The mariadbd server will automatically discover if catalogs are used or not.
Note that one cannot change a 'normal server' to a server with catalogs or a server with catalogs to a 'normal server'. In the future we will add tools that will allow one to easily move an existing server inside a catalog or move an server inside a catalog to a standalone server.
Initializing a New Server with Catalog Support
To initialize a server with 4 catalogs (the def catalog, that holds the catalog root user (CRU) is automatically created):
mariadb_install_db --catalogs="cat1 cat2 cat3" --datadir=/my/data/
The above will create a directory /my/data and the 4 directories under it, one for each catalog.
Adding More Catalogs to a Running Server
Creating Catalogs with CREATE CATALOG
One can create a new catalog with CREATE CATALOG catalog_name
Creating Catalogs with mariadb_install_db
When adding more catalogs to an existing server, mariadb_install_db will start the mariadb client to execute the needed commands on the running server. This is why one has to supply user and password to mariadb_install_db.
mariadb_install_db --catalogs="cat4 cat5 cat6" --datadir=/my/data --catalog-user=monty --catalog-password
One benefit of using mariadb_install_db is that it's possible to create many catalogs with one command.
