Disabling AppArmor for installing PXC on ubuntu 16.04

Yes, As I’ve mentioned before there was a packages conflict in for writing in ‘/usr/share/man/man1/mysqlman.1.gz’
I’ve solved this problem by “–force-overwrite”
[PHP]sudo apt-get -o Dpkg::Options::=“–force-overwrite” install percona-xtradb-cluster-57[/PHP]

Yes, I think so, the vestacp may installed it before. By the way being mysql-client installed or not is something PXC installation process must check it before installing anything.
Please tell the team to check it, Can they install PXC on a vestacp server?

Now phpMyAdmin shows me I’m using Percona Server, So I don’t think I’m using MySQL anymore, Is there any way to fix this single node and use it again? for example by using:
[PHP]SET GLOBAL pxc_strict_mode=MASTER;[/PHP]

I fixed the AppArmor issue by this commands:

sudo ln -s /etc/apparmor.d/usr.sbin.mysqld /etc/apparmor.d/disable/

sudo apparmor_parser -R /etc/apparmor.d/usr.sbin.mysqld

Only disabling MySQL profile is better than removing the whole AppArmor which was mentioned in PXC’s installation tutorial!