Background Today, we'll walk through one of the most requested deployment scenarios in the Apache DolphinScheduler community: deploying an Apache DolphinScheduler 3.1.9 cluster with MySQL as the metadata database using Docker Compose. As many users know, the official Docker Compose deployment provided by DolphinScheduler uses PostgreSQL as the metadata repository by default. This is mainly because the GPLv2 license of MySQL is not fully compatible with Apache License 2.0, preventing the p...