Hello, thanks for your question. I did find this post from earlier, so thought that I should check with you that it’s not a similar issue (see the response from niljoshi) [url]https://www.percona.com/forums/questions-discussions/mysql-and-percona-server/13830-access-denied-after-mysql_install_db-user-mysql[/url]
If this is not the issue, let me know and I will ask one of the Percona Server team to take a look.