Open Stack

Hello,

I'm no expert on the subject, but i think you should just use "mount -t nfs
172.18.32.7:/ /var/lib/nova/instances" instead of "mount -t nfs 172.18.32.7:
/var/lib/nova/instances /var/lib/nova/instances". Also from the stack trace
it seems your libvirtd is not running.

On Thu, Aug 9, 2012 at 7:55 AM, 王鹏 <breakwindwp at gmail.com> wrote:

> HI everyone,
> when I test live migration use NFS ,that's my sitting according to
>
> http://docs.openstack.org/essex/openstack-compute/admin/content/configuring-live-migrations.html
>
> 1.add this line /var/lib/nova/instances *(rw,sync,fsid=0,no_root_squash)
> in /etc/exports
> 2.mount -t nfs 172.18.32.7:/var/lib/nova/instances
> /var/lib/nova/instances at compute
> and change some setting in libvirt.conf and libvird-bin.conf add a option
> -l
> 3.restart service
>
> then I create instance in compute node ,find error
> that's my nova-compute.log as follow:
> 2012-08-09 13:13:03 ERROR nova.manager [-] Error during
> ComputeManager.update_available_resource: Failed to connect socket to
> '/var/run/libvirt/libvirt-sock': No such file or directory
> 2012-08-09 13:13:03 TRACE nova.manager Traceback (most recent call last):
> 2012-08-09 13:13:03 TRACE nova.manager File
> "/usr/lib/python2.7/dist-packages/nova/manager.py", line 155, in
> periodic_tasks
> 2012-08-09 13:13:03 TRACE nova.manager task(self, context)
> 2012-08-09 13:13:03 TRACE nova.manager File
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 2409, in
> update_available_resource
> 2012-08-09 13:13:03 TRACE nova.manager
> self.driver.update_available_resource(context, self.host)
> 2012-08-09 13:13:03 TRACE nova.manager File
> "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/connection.py", line
> 1936, in update_available_resource
> 2012-08-09 13:13:03 TRACE nova.manager 'vcpus_used': self.get_vcpu_used(),
> 2012-08-09 13:13:03 TRACE nova.manager File
> "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/connection.py", line
> 1742, in get_vcpu_used
> 2012-08-09 13:13:03 TRACE nova.manager for dom_id in
> self._conn.listDomainsID():
> 2012-08-09 13:13:03 TRACE nova.manager File
> "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/connection.py", line
> 298, in _get_connection
> 2012-08-09 13:13:03 TRACE nova.manager self.read_only)
> 2012-08-09 13:13:03 TRACE nova.manager File
> "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/connection.py", line
> 341, in _connect
> 2012-08-09 13:13:03 TRACE nova.manager return libvirt.openAuth(uri, auth,
> 0)
> 2012-08-09 13:13:03 TRACE nova.manager File
> "/usr/lib/python2.7/dist-packages/libvirt.py", line 102, in openAuth
> 2012-08-09 13:13:03 TRACE nova.manager if ret is None:raise
> libvirtError('virConnectOpenAuth() failed')
> 2012-08-09 13:13:03 TRACE nova.manager libvirtError: Failed to connect
> socket to '/var/run/libvirt/libvirt-sock': No such file or directory
> 2012-08-09 13:13:03 TRACE nova.manager
>
> what's /var/run/libvirt/libvirt-sock'?
> why this error?
>
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-- 
Cumprimentos / Regards,
Leander
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