Avoiding “MySQL server has gone away” on infrequently used Python / Flask server with SQLAlchemy

Question

How can Flask / SQLAlchemy be configured to create a new database connection if one is not present?

I have an infrequently visited Python / Flask server which uses S

Answer 1

When I encountered this error I was storing a LONGBLOB / LargeBinary image ~1MB in size. I had to adjust the max_allowed_packet config setting in MySQL.

I used mysqld --max-allowed-packet=16M