I have this issue as well.
I did as instructed via the error message from CWP:
"**Check your MySQL root password in: /usr/local/cwpsrv/htdocs/resources/admin/include/db_conn.php and /root/.my.cnf"
I have purchased support so I put in a ticket.
They got MariaDB working again but said I have lost all my data and need to restore from a back up...?
The thing of it is the /var/lib/mysql/ files are still there.
CWP and phpMyadmin where giving me infinite login loops for a couple of hours but that now seems to be working... but not really...
I go to upload one database using phpMyAdmin and I get errors Like the following error:
#1010 - Error dropping database (can't rmdir './DATABASE_IS_here', errno: 39 "Directory not empty")
I just preformed the following:
service mariadb stop
$mkdir /OLDMYSQL-DIR
cd /OLDMYSQL-DIR
tar cvf mysql-olddirectory.tar /var/lib/mysql gzip mysql-olddirectory.tar
service mariadb start
The day before this happened I did yum update and MariaDB was updated.
HOW CAN I RESCUE MY MYSQL DATABASES?
The lastest support ticket I submitted was hours ago and one yesterday to ask what they did and how there was databases losses... I have still yet to here back.
I am worried that CWP is broke and that my databases are in jeopardy!