How to approach a “Got minus one from a read call” error when connecting to an Amazon RDS Oracle instance

Question

I\'m running Oracle 11GR2 on an Amazon RDS instance. occasionally I get an IO Error: Got minus one from a read call when making a call to DriverManager.ge

Answer 1

I got this error message from using an oracle database in a docker despite the fact i had publish port to host option "-p 1521:1521". I was using jdbc url that was using ip address 127.0.0.1, i changed it to the host machine real ip address and everything worked then.