MAMP - WSO2 DSS - Error establishing data source connection: Communications link failure The last packet sent successfully to the server

Question

I'm running MAMP and WSO2 Carbon data service at the same time. What I'm trying to do is adding a new data source by connecting to mysql server. I have added the com.mysql.jdbc.Driver to lib folder.

Full error which I'm getting when trying to test the connection

Error establishing data source connection: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

Answer 1

This seems to be a problem with mysql server configuration. Please have a look at following threads.

Solving a "communications link failure" with JDBC and MySQL

Why I get this error 'Communications link failure The last packet sent...' when connecting to MySQL with Java (Netbeans)?

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException:Communications link failure

Answer 2

In my case simply putting useSSL=false on end of connection string did the magic

jdbc:mysql://localhost:3306/USERS?useSSL=false