Rishikesh wrote:
Rishikesh wrote:
Hi daniel,
Sorry for late response, was busy with some other high priority task.
Daniel P. Berrange wrote:
On Wed, Oct 07, 2009 at 08:12:02PM +0530, Dhaval Giani wrote:
The most likely suspect is that the cgroups controllers were mounted or
unmounted after libvirtd started. A restart of libvirtd ought to resolve
the problem if this is indeed the case
Ok, Here i tried one more scenario, i think this is what you meant:
1> Stop libvirtd
2> Run cgroup " /etc/init.d/cgconfig start"
3> Start libvirtd
4> And then try to create a container.
Though above steps are also failing. But now i am getting some different
failure. I am not seeing the earlier warning messages. You can see
below on shell 1.
My previous post was following this steps:
1> Run cgroup once again
2> service libvirtd restart
3> Create a container
Here are the different error which i am getting:
Shell:1
[root@mhs21a ~]# libvirtd
libvir: Linux Container error : failed to connect to client socket: No
such file or directory
11:17:36.743: error : lxcVmStart:1007 : Failed to read pid file
/var/run/libvirt/lxc/vm1.pid: No such file or directory
libvir: Linux Container error : Failed to read pid file
/var/run/libvirt/lxc/vm1.pid: No such file or directory
Shell 2:
[root@mhs21a ~]# vim /etc/cgconfig.conf
[root@mhs21a ~]# /etc/init.d/cgconfig start
Starting cgconfig service: [ OK ]
[root@mhs21a ~]# virsh -c lxc:///
Welcome to virsh, the virtualization interactive terminal.
Type: 'help' for help with commands
'quit' to quit
virsh # list --all
Id Name State
----------------------------------
- vm1 shut off
virsh # start vm1
error: Failed to start domain vm1
error: Failed to read pid file /var/run/libvirt/lxc/vm1.pid: No such
file or directory
virsh # list --all
Id Name State
----------------------------------
- vm1 shut off
virsh #
So now we need to deal with two issue:
- One we need to decide , ( is it neccessary to stop libvirt before
creating cgroup ?)
- How container can be started using cgroup ?
-Rishi
Cgroup config file & controllers mount shows like this :
[root@mhs21a ~]# cat /proc/mounts | grep cgroup
cgroup /cgroups/cpu cgroup rw,relatime,cpu 0 0
cgroup /cgroups/cpuacct cgroup rw,relatime,cpuacct 0 0
cgroup /cgroups/memory cgroup rw,relatime,memory 0 0
[root@mhs21a ~]# cat /etc/cgconfig.
cat: /etc/cgconfig.: No such file or directory
[root@mhs21a ~]# cat /etc/cgconfig.conf
#
# Copyright IBM Corporation. 2007
#
group test1/fruits/mango {
perm {
task {
uid = test;
gid = test;
}
admin {
uid = root;
gid = root;
}
}
cpu {
cpu.shares = 1024;
}
}
mount {
cpu = /cgroups/cpu;
cpuacct = /cgroups/cpuacct;
memory = /cgroups/memory;
}
[root@mhs21a ~]#
Actually not , restarting libvirt daemon did not help me.
I had controllers mounted as per /proc/mount . And i am really seeing an
issue after starting cgconfig services on my system.
Shell :1
virsh # start vm1
Domain vm1 started
virsh # list --all
Id Name State
----------------------------------
- vm1 shut off
virsh #
Shell 2:
[root@mls41 ~]# service libvirtd restart
Stopping libvirtd daemon: [ OK ]
Starting libvirtd daemon: [ OK ]
[root@mls41 ~]# cat /proc/mounts | grep cgroup
cgroup /cgroup cgroup rw,relatime,cpuacct,cpu 0 0
[root@mls41 ~]#
Let me know if you need some more info.
-Rishi
Daniel;
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