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I am able to access AWS MySQL running on Kubernetes (required access keyId and secret key while setup & configuration).

Errors

When connecting with Spring Boot application to MySQL, I am getting errors:

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

Screenshot: enter image description here

How can I fix this?

hc_dev
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Thomas Ngo
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  • Does this answer your question? [How to fix this java mysql exception: Communications link failure?](https://stackoverflow.com/questions/48262498/how-to-fix-this-java-mysql-exception-communications-link-failure) – hc_dev Jun 23 '22 at 20:04
  • Did you troubleshoot using [AWS MySQL docs](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_ConnectToInstance.html#USER_ConnectToInstance.JDBCDriverMySQL), especially the connection URL ? – hc_dev Jun 23 '22 at 20:07

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