Since the day Oracle bought Sun, we've heard how Oracle is going to kill MySQL, and/or make all its features "enterprise" only.
Both companies have middleware layers for directing queries, but:
- MySQL Proxy/MySQL Router are both GPL2
- MariaDB MaxScale is BSL (it's a product of MariaDB the company, not MariaDB the foundation)
Codership Oy was a company that produced Galera, a plugin for multi-master replication. It was available for the community editions of Oracle MySQL, MariaDB, and integrated via Percona in their build of MySQL to make Percona XtraDB Cluster aka PXC.
MariaDB the company bought Codership Oy last year. Very soon after this happened, the website for Galera started redirecting to MariaDB the company's Enterprise Cluster page with zero mention of the open source project they'd just bought.
Not long after that, they stopped making Galera available for Oracle MySQL, and even removed it from the MariaDB community edition builds. It was to only be available via MariaDB Enterprise edition. They have subsequently taken a minute backstop on the MariaDB Community edition scenario, but it sounds very much like it's "we won't rip it out right now", and essentially the Community edition is likely to have to (try to) support its own internal fork of Galera to keep the functionality.
This is similar to the scenario Percona is now in - supporting their own version of Galera for PXC. The difference is they're a consulting company and have revenue and paid staff to do so. MariaDB the foundation is essentially joined at the hip with MariaDB the company for resources, but they apparently have very different goals.
Literally the only thing the foundation "produces" is the community edition of MariaDB... and they send people for the documentation of said product to MariaDB the company's website. Last year MariaDB the foundation agreed to define and recognise a "Primary Code Contributor" for the project... and it's MariaDB the company.