Hi, Thanks a lot for your answer. Here is the link of the tutorial that I used to install OpenStack: http://docs.openstack.org/essex/openstack-compute/install/apt/openstack-install-guide-essex.pdf Page 41 shows an overview of the architecture of OpenStack with Xen. Actually, I am trying to use libvirt to connect to the hypervisor. I modified a little the code of openstack to make the connection to the hypervisor from a para virtualized domU possible (just modified the url to let make a remote connection).
Regards, Afef 2012/9/5 John Garbutt <john.garb...@citrix.com> > Hi,**** > > ** ** > > Sorry for the slow response, I have been out of email contact.**** > > ** ** > > You are best running all the services in a DomU, in the single server case. > **** > > You only need the xenapi plugins running on Dom0, assuming you are not > running Quantum.**** > > ** ** > > When you add the second machine, you only need compute, network (and > console I think)**** > > ** ** > > Can you please point me to the bit of the Essex install guide that tells > you to run the other services in Dom0 so I can get that updated to stop any > further confusion?**** > > ** ** > > If you want to get something running quickly, I recommend trying DevStack. > You can then using that as a template for a more production focused setup. > **** > > ** ** > > I hope that helps,**** > > John**** > > ** ** > > *From:* openstack-bounces+john.garbutt=citrix....@lists.launchpad.net[mailto: > openstack-bounces+john.garbutt=citrix....@lists.launchpad.net] *On Behalf > Of *Afef MDHAFFAR > *Sent:* Tuesday, September 4, 2012 3:03 PM > *To:* openstack@lists.launchpad.net > *Subject:* [Openstack] boot image + glance connection failed**** > > ** ** > > Hi all,**** > > ** ** > > I got these errors when trying to boot an image. There are related to > glance. I install openstack on an Ubuntu 12.04 (with Xen Server).**** > > Dom0 runs nova-api, glance service, nova-scheduler, nova-cert and > nova-console.**** > > DomU runs nova-compute and nova-network.**** > > ** ** > > Do I have to install glance service on DomU????**** > > ** ** > > Here are log errors (picked from nova-compute.log). **** > > ** ** > > ** ** > > 2012-09-04 15:54:40 ERROR nova.image.glance > [req-a516f35c-4207-4180-86b9-3a85687067b7 cf8971efd8934844b559d26e238506cc > 141d12e2431f47a5bf77f90da4800960] Connection error contacting glance > server, retrying**** > > 2012-09-04 15:54:40 TRACE nova.image.glance Traceback (most recent call > last):**** > > 2012-09-04 15:54:40 TRACE nova.image.glance File > "/usr/lib/python2.7/dist-packages/nova/image/glance.py", line 145, in > _call_retry**** > > 2012-09-04 15:54:40 TRACE nova.image.glance return getattr(client, > name)(*args, **kwargs)**** > > 2012-09-04 15:54:40 TRACE nova.image.glance File > "/usr/lib/python2.7/dist-packages/glance/client.py", line 101, in > get_image_meta**** > > 2012-09-04 15:54:40 TRACE nova.image.glance res = > self.do_request("HEAD", "/images/%s" % image_id)**** > > 2012-09-04 15:54:40 TRACE nova.image.glance File > "/usr/lib/python2.7/dist-packages/glance/common/client.py", line 58, in > wrapped**** > > 2012-09-04 15:54:40 TRACE nova.image.glance return func(self, *args, > **kwargs)**** > > 2012-09-04 15:54:40 TRACE nova.image.glance File > "/usr/lib/python2.7/dist-packages/glance/common/client.py", line 420, in > do_request**** > > 2012-09-04 15:54:40 TRACE nova.image.glance headers=headers)**** > > 2012-09-04 15:54:40 TRACE nova.image.glance File > "/usr/lib/python2.7/dist-packages/glance/common/client.py", line 75, in > wrapped**** > > 2012-09-04 15:54:40 TRACE nova.image.glance return func(self, method, > url, body, headers)**** > > 2012-09-04 15:54:40 TRACE nova.image.glance File > "/usr/lib/python2.7/dist-packages/glance/common/client.py", line 562, in > _do_request**** > > 2012-09-04 15:54:40 TRACE nova.image.glance raise > exception.ClientConnectionError(e)**** > > 2012-09-04 15:54:40 TRACE nova.image.glance ClientConnectionError: There > was an error connecting to a server**** > > 2012-09-04 15:54:40 TRACE nova.image.glance Details: [Errno 111] > ECONNREFUSED**** > > 2012-09-04 15:54:40 TRACE nova.image.glance**** > > 2012-09-04 15:54:41 ERROR nova.rpc.amqp > [req-a516f35c-4207-4180-86b9-3a85687067b7 cf8971efd8934844b559d26e238506cc > 141d12e2431f47a5bf77f90da4800960] Exception during message handling**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp Traceback (most recent call last): > **** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp File > "/usr/lib/python2.7/dist-packages/nova/rpc/amqp.py", line 253, in > _process_data**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp rval = node_func(context=ctxt, > **node_args)**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp File > "/usr/lib/python2.7/dist-packages/nova/exception.py", line 114, in wrapped > **** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp return f(*args, **kw)**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp File > "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 183, in > decorated_function**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp sys.exc_info())**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp File > "/usr/lib/python2.7/contextlib.py", line 24, in __exit__**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp self.gen.next()**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp File > "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 177, in > decorated_function**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp return function(self, context, > instance_uuid, *args, **kwargs)**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp File > "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 657, in > run_instance**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp do_run_instance()**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp File > "/usr/lib/python2.7/dist-packages/nova/utils.py", line 945, in inner**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp retval = f(*args, **kwargs)*** > * > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp File > "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 656, in > do_run_instance**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp self._run_instance(context, > instance_uuid, **kwargs)**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp File > "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 457, in > _run_instance**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp > self._set_instance_error_state(context, instance_uuid)**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp File > "/usr/lib/python2.7/contextlib.py", line 24, in __exit__**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp self.gen.next()**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp File > "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 426, in > _run_instance**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp image_meta = > self._check_image_size(context, instance)**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp File > "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 504, in > _check_image_size**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp image_meta = > _get_image_meta(context, instance['image_ref'])**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp File > "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 190, in > _get_image_meta**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp return > image_service.show(context, image_id)**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp File > "/usr/lib/python2.7/dist-packages/nova/image/glance.py", line 241, in show > **** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp > _reraise_translated_image_exception(image_id)**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp File > "/usr/lib/python2.7/dist-packages/nova/image/glance.py", line 239, in show > **** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp image_id)**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp File > "/usr/lib/python2.7/dist-packages/nova/image/glance.py", line 153, in > _call_retry**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp reason=_('Maximum attempts > reached'))**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp GlanceConnectionFailed: Connection > to glance failed: Maximum attempts reached**** > > 2012-09-04 15:54:41 TRACE nova.rpc.amqp**** > > ** ** > > ** ** > > Thank you for your help,**** > > Afef**** > > ** ** > -- Afef MDHAFFAR http://www.redcad.org/members/mdhaffar/
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