Help with generic error

[Paul Haynes]

I was hoping someone may be able to shed some light on the possible reasons for the generic error message we are seeing when using Connector/ODBC. Usually we are connecting to an RDS database in AWS via ProxySQL.

The most common time this is seen is when trying to open a datareader, at which point we receive the error:

ERROR [HY000] [MySQL][ODBC 8.0(w) Driver][mysqld-5.7.40]

Nothing else is returned in the message. This is unreliable to recreate, but when we have seen it on occassion the connection remains open, but effectively corrupt because further attempts to retry opening the data reader always return this message.

Does anyone know what may be causing this issue, or how we can find more information out about the error?