We have an AppEngine application that periodically loses connection to our Cloud SQL (MySQL) database. This has happened twice in the last three months. Each time, the application fails to connect for a while, then recovers on its own.
Our Cloud SQL instance is not in High Availability (HA). We would like to understand the possible causes of these intermittent disconnections and how to mitigate them.
Has anyone experienced similar issues? Could this be due to maintenance, networking issues, or something else? Would enabling HA help in preventing these disruptions?
Any insights or guidance, including how to work with Google Support on this, would be greatly appreciated!
