On Wed, Mar 20, 2013 at 10:27:21AM +0530, Saurabh Deochake wrote:
> Hi Alex,
> I checked it again and found that blkio controller is already mounted.
> Output of above commands are also same.

Saurabh,

Please check whether libvirt container is mounted in the blkio cgroup controller.
(/cgroup/blkio/libvirt/), and if not the libvirt dameon has to be restarted, if it is
available check for the respective domain is available in the respective container,
(/cgroup/blkio/libvirt/qemu/<domain-name>), if not the respective domain also has to be
restarted to get the cgroups reflected.

I hope this helps.

Regards,
-Satheesh.

>
> So the problem still persists.
>
>
> On Wed, Mar 20, 2013 at 8:23 AM, Alex Jia <ajia@redhat.com> wrote:
>
> > Saurabh, please make sure blkio controller has
> > been mounted on your host firstly then need to
> > restart libvirtd service after manually mounting
> > it.
> >
> > # lssubsys
> > cpuset
> > cpu
> > cpuacct
> > memory
> > devices
> > freezer
> > net_cls
> > blkio
> >
> > or
> >
> > # grep blkio /proc/mounts
> > cgroup /cgroup/blkio cgroup rw,relatime,blkio 0 0
> >
> >
> >
> > --
> > Regards,
> > Alex
> >
> >
> > ----- Original Message -----
> > From: "Saurabh Deochake" <saurabh.d04@gmail.com>
> > To: libvirt-users@redhat.com
> > Sent: Tuesday, March 19, 2013 3:00:53 PM
> > Subject: [libvirt-users] Errors while using blkiotune command
> >
> >
> >
> >
> >
> >
> > Hi all,
> >
> > I want to limit the I/O bandwidth inside the container, so I used virsh
> > command blkiotune. But when I enter a command:
> >
> > virsh # blkiotune lxcguest --weight 250
> >
> > I get following errors:
> >
> > error: Unable to change blkio parameters
> > error: Requested operation is not valid: blkio cgroup isn't mounted
> >
> > I also have blkio cgroup mounted. What can be the problem?
> >
> >
> > Thanks in advance.
> >
> >
> > Regards,
> > Saurabh Deochake
> >
> > _______________________________________________
> > libvirt-users mailing list
> > libvirt-users@redhat.com
> > https://www.redhat.com/mailman/listinfo/libvirt-users
> >

> _______________________________________________
> libvirt-users mailing list
> libvirt-users@redhat.com
> https://www.redhat.com/mailman/listinfo/libvirt-users