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3.2. Unmounting a Hierarchy
If you mounted a hierarchy by editing the
/etc/cgconfig.conf configuration file, you can unmount it simply by removing the configuration directive from the mount section of this configuration file. Then restart the service to apply the new configuration.
Similarly, you can unmount a hierarchy by executing the following command as
root:
~]#umount/sys/fs/cgroup/controller_name
Replace controller_name with the name of the hierarchy that contains the resource controller you wish to detach.
Warning
Make sure that you use
umount to remove only hierarchies that you mounted yourself manually. Detaching a hierarchy that contains a default controller (listed in Available Controllers in Red Hat Enterprise Linux 7) will most probably lead to complications requiring a system reboot.
