I am trying to create JDBC connection with my AWS MySQL server but it is giving the following error.
The explorer command failed to run:
java.lang.Throwable:RemoteException: INVALID_ARGUMENT (MagritteExplorer:SqlError) with instance ID e86a834b-ec4f-42a0-b68c-24faac: {reason=Communications link failure
I have checked the configuration and it is good. What could be the problem?
The “Communications link failure” error when trying to establish a JDBC connection to your AWS MySQL server could be due to several reasons:
- Network Connectivity : Ensure that your network allows outbound connections to the AWS MySQL server. Check if there are any firewalls or security groups that might be blocking the connection.
- Database Endpoint and Port : Verify that you are using the correct database endpoint and port number in your JDBC connection string.
- SSL Configuration : If your MySQL server requires SSL, ensure that your JDBC connection is configured to use SSL. You might need to provide the SSL certificate or configure the truststore appropriately.
- Timeout Settings : Check if there are any timeout settings in your JDBC configuration that might be too short, causing the connection to fail before it is established.
- Driver Version : Ensure that you are using a compatible version of the JDBC driver for your MySQL server.
If these steps do not resolve the issue, consider checking the server logs for more detailed error messages that might provide additional insights into the problem.