Mysqld running without Mysql package - strange

[bb42]

Starting top in my Proxmox VE host showed the mysqld Process eating 82% CPU time.
But there is no mysqladmin around to stop it officially.
dpkg -l shows mysql-common to be installed though.
Then again there is no mysqld in /etc/init.d
Strange.
So I killed the process - ok - the web-UI still works
Where does mysqld come from - it must have been started after the reboot (month ago), or is this sign of a hacking attempt?

 

[tom]

maybe you run a container with a running mysql?

 

[bb42]

Aehm, yes .. scratching his neck .. mysql is/was running in an openvz container.
But, was it not the idea of a virtual environment to encapsulate the processes from the clients versus the host?
Then I expect not to see any container-processes in the host (and vice versa).

 

[Nemesiz]

put kernel.pid_ns_hide_child=1 into /etc/sysctl.conf and reboot

 

[tom]

containers are a bit different. start reading here:

http://openvz.org

if you do not want these container features, use a VM (qemu).

 

[tom]

put kernel.pid_ns_hide_child=1 into /etc/sysctl.conf and reboot

this breaks some features, like live-migration

https://openvz.org/Processes_scope_and_visibility

 

[bb42]

Thanks, I can live with the processes showing up on the host.
I was just irritated about the concept behind that, now I've understood a bit more about that.