Introduction
Those DBAs who are experts in one database system look for other database systems to have "similar features." It is a human tendency to look at any new technology and compare it with a world they are familiar with.
Most of the time, I keep addressing Oracle DBAs who are looking for similar features or setup in PostgreSQL, but this time it is for MySQL DBA. MySQL historically ships mysqld_multi to manage multiple instances of MySQL on a server. Even though this is not a core feature in MySQL, but rather a wrapper, I understand that it is something widely used and my colleague Fernando blogged about it.