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List:       lxc-users
Subject:    Re: [lxc-users] cgrulesengd issues
From:       Serge Hallyn <serge.hallyn () ubuntu ! com>
Date:       2015-05-26 19:44:59
Message-ID: 20150526194459.GB12690 () ubuntumail
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Quoting Mohan G (mohan_gg@yahoo.com):
> Hi,My /etc/cgrules.conf  is 
> root:nfsd memory /sys/fs/cgroups/filer/root:/usr/sbin/exportfs cpuset,memory \
> /sys/fs/cgroups/filer/root:/usr/sbin/rpc.mountd cpuset,memory \
> /sys/fs/cgroups/filer/root:/usr/sbin/rpc.nfsd cpuset,memory \
> /sys/fs/cgroups/filer/root:/usr/sbin/rpc.svcgssd cpuset,memory \
> /sys/fs/cgroups/filer/ my /etc/cgconfig.conf is like below.
> group filer {        memory {                memory.limit_in_bytes=4G;        }
> cpuset {                cpuset.cpus=0-2;        }}
> after the system boots, i don;t see any group created, But then when i run \
> "cgconfigparser", the group gets created,Post this i want the cgrules.conf to take \
> effect, but it does not work after running cgrulesengd.And there are no start-up \
> scripts too in my 3.13 kernel. My requirement is to create the group and move the \
> process as above to the group on system boot.

lxc-users is the wrong list for this.   libcgroup is now
basically unsupported.  Depending on your distro/release (and
more specifically on your init) google for how to spawn a job
into a cgroup in upstart or systemd.

(The problem with libcgroup was that it would try to catch a
started service and change its cgroup after the fact, which was
racy if the service quickly spawned some childre, as libvirt
does.  The proper way is for init to create the cgroups and
spawn the new service in it from the start)

See for instance http://upstart.ubuntu.com/cookbook/#cgroup and
http://www.freedesktop.org/software/systemd/man/systemd.cgroup.html

-serge
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