yum install https://repo.percona.com/yum/percona-release-latest.noarch.rpm
yum install Percona-Server-server-57
systemctl start mysql
systemctl enable mysql
sleep 5
grep 'temporary password' /var/log/mysqld.log

# mysql -u root -p
# ALTER USER 'root'@'localhost' IDENTIFIED BY 'StrongPassword';
# flush privileges;