[SOLVED] MySQL communication problem - Public Key Retrieval is not allowed with HTTP 500

[nasdk]

Turns out solution above is temporarily by it’s nature.
There was another case like mine and @tmortagne helped there a lot.

All you need to do is add allowPublicKeyRetrieval=true in your connection string in file hibernate.xfg.xml (/etc/xwiki/hibernate.xfg.xml - in my case)

It should look like this in my case.
jdbc:mysql://localhost/xwiki?useSSL=false&allowPublicKeyRetrieval=true

Link to original post.

Error Message 11007 on fresh install using Tomcat9 and MySQL

No, you should modify the value of the existing URL to add a new parameter, as in jdbc:mysql://localhost/xwiki?useSSL=false&allowPublicKeyRetrieval=true (& needs to be escaped in an XML file so we use &).