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    <div class="moz-cite-prefix">Hello,<br>
      <br>
      I am going forward with trying to implementing neutron in
      XenServer. Looking in documentation that is possible with
      DevStack. <a
        href="https://wiki.openstack.org/wiki/QuantumDevstackOvsXcp">https://wiki.openstack.org/wiki/QuantumDevstackOvsXcp</a>
      But there is one catch, in section, where you enable
      services(ENABLED_SERVICES) there is two more services, which isn't
      in havana release: q-agt and q-domua. So, if I am right, this two
      services make possible to run necessary neutron commands from domU
      in to dom0. So, where I can get this services? Or maybe all this
      is included in neutron-plugin-openvswitch-agent package, just need
      to configure it right?<br>
      In /etc/neutron/rootwrap.conf is xenapi section, so I suppose that
      it is required to run neutron + XenServer. And there is
      /usr/bin/neutron-rootwrap-xen-dom0 script, which login to
      XenServer and run commands.<br>
      <br>
      And additional question:<br>
      <br>
      Is anyone trying to live migrate with OpenStack + neutron +
      XenServer setup? I can't live migration, got error: <a
        href="http://paste.openstack.org/show/55683/">http://paste.openstack.org/show/55683/</a><br>
      Maybe this is because my neutron setup is not working completely,
      but maybe this is bug in live migration ...<br>
      <br>
      Thanks.<br>
      <br>
      On 2013.12.16. 21:33, Amir Sadoughi wrote:<br>
    </div>
    <blockquote
      cite="mid:2B57E87C-BA4E-4C9A-A88D-FD6A9033A0A7@rackspace.com"
      type="cite">
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
      Glad to hear it’s working better. To be honest, I haven’t gotten
      further than this.  For my test environment, I end up using VNC to
      statically set the neutron ports' fixed ip inside the instance.
      <div><br>
      </div>
      <div>From what I’ve read, I think at this point you have to setup
        the metadata agent to run listening on 169.254.169.254 or you
        can try something called config drive, but I haven’t bothered
        getting either working yet.</div>
      <div><br>
      </div>
      <div>Hopefully someone else can chime in and help us out both!</div>
      <div><br>
      </div>
      <div>Amir<br>
        <div><br>
        </div>
        <div><br>
          <div>
            <div>On Dec 16, 2013, at 1:23 PM, Mārtiņš Jakubovičs <<a
                moz-do-not-send="true" href="mailto:martins@hostnet.lv">martins@hostnet.lv</a>>
              wrote:</div>
            <br class="Apple-interchange-newline">
            <blockquote type="cite">
              <div text="#000000" bgcolor="#FFFFFF">Thanks you!<br>
                <br>
                At least something is going forward! :) That works, no
                more error and instance boot's.<br>
                I created network in XenServer by command:<br>
                <br>
                xe network-create name-label=br-int<br>
                <br>
                With:<br>
                <br>
                xe network-list name-label=br-int params=bridge<br>
                <br>
                I get bridge name - xapi1<br>
                <br>
                After that in XenServer:<br>
                <br>
                ovs-vsctl add-br xapi1<br>
                <br>
                Got error: ovs-vsctl: cannot create a bridge named xapi1
                because a bridge named xapi1 already exists<br>
                <br>
                In nova-compute I changed integration_bridge to xapi1 in
                ovs_neutron_plugin.ini file. Than in nova-compute i run:<br>
                <br>
                ovs-vsctl del-br br-int<br>
                ovs-vsctl add-br xapi1<br>
                <br>
                Now running instances get br-int network attached, but
                lookls like dhcp is not working. Instance can't assign
                IP. Neutron and nova logs without errors. Maybe is some
                ideas why dhcp is not working? Maybe some there is some
                "painful spots" with dhcp? Or I missed something with
                configuration from above?<br>
                <br>
                <div class="moz-cite-prefix">On 2013.12.16. 18:10, Amir
                  Sadoughi wrote:<br>
                </div>
                <blockquote
                  cite="mid:5E09E4EA-74CA-4767-9086-7F516A3F9104@rackspace.com"
                  type="cite">
                  My apologies, it looks like I scanned your original
                  error message too quickly. 
                  <div><br>
                  </div>
                  <div>“Found no network for bridge br-int” means you
                    need to run `xe network-create …`. AFAICT, xe
                    network-create does not let you specify the bridge
                    name. So, from the result of xe network-create, you
                    need to invoke `ovs-vsctl add-br …` with the bridge
                    name it specifies and reconfigure Nova/Neutron/OVS
                    plugin to use that bridge as the integration bridge.</div>
                  <div><br>
                  </div>
                  <div>Hopefully that advice will get you further.
                    <div><br>
                    </div>
                    <div>Amir</div>
                    <div><br>
                      <div>
                        <div>On Dec 15, 2013, at 9:31 AM, Mārtiņš
                          Jakubovičs <<a moz-do-not-send="true"
                            href="mailto:martins@hostnet.lv">martins@hostnet.lv</a>>
                          wrote:</div>
                        <br class="Apple-interchange-newline">
                        <blockquote type="cite">
                          <div bgcolor="#FFFFFF" text="#000000">With
                            OpenStack + XenServer is much more questions
                            than should be. For example, what then is
                            this -
                            <a moz-do-not-send="true"
                              href="http://openvswitch.org/openstack/documentation/">
http://openvswitch.org/openstack/documentation/</a><br>
                            <br>
                            Or Nicira NVP, where I can download it?
                            Looks like it is now a part of VMware.<br>
                            <br>
                            <div class="moz-cite-prefix">On 2013.12.15.
                              15:04, 郭龙仓 wrote:<br>
                            </div>
                            <blockquote
cite="mid:CACkq0K+rUje0BAgTb0QCo5B1NjvVtPxK6HN+o2UrTmA1N=W0Cw@mail.gmail.com"
                              type="cite">
                              <div dir="ltr">Yes , you must use <span
                                  style="font-family:arial,sans-serif;font-size:14px">Nicira
                                  NVP with XenServer</span></div>
                              <div class="gmail_extra"><br>
                                <br>
                                <div class="gmail_quote">2013/12/15
                                  Mārtiņš Jakubovičs <span dir="ltr"><<a
                                      moz-do-not-send="true"
                                      href="mailto:martins@hostnet.lv"
                                      target="_blank">martins@hostnet.lv</a>></span><br>
                                  <blockquote class="gmail_quote"
                                    style="margin: 0px 0px 0px 0.8ex;
                                    border-left-width: 1px;
                                    border-left-color: rgb(204, 204,
                                    204); border-left-style: solid;
                                    padding-left: 1ex; position: static;
                                    z-index: auto;">
                                    <div bgcolor="#FFFFFF"
                                      text="#000000">Hello,<br>
                                      <br>
                                      Is <a moz-do-not-send="true"
href="http://docs.openstack.org/havana/install-guide/install/apt/content/neutron-install-network-node.html"
                                        target="_blank">
                                        this right tutorial</a> to
                                      install neutron in OpenStack with
                                      XenServer? In this <a
                                        moz-do-not-send="true"
href="http://docs.openstack.org/admin-guide-cloud/content/ch_networking.html#section_networking-intro"
                                        target="_blank">
                                        section</a> say's that OVS isn't
                                      supported in XenServer with
                                      neutron, is it right? So I must
                                      uninstall OVS and use this Nicira
                                      NVP?
                                      <div>
                                        <div class="h5"><br>
                                          <br>
                                          <div>On 2013.12.13. 10:54,
                                            Mārtiņš Jakubovičs wrote:<br>
                                          </div>
                                          <blockquote type="cite">Hello
                                            all, <br>
                                            <br>
                                            I have problem with setting
                                            up neutron. I have latest
                                            havana realase and XenServer
                                            6.2 as hypervisor.
                                            <br>
                                            I did all step-by-step from
                                            this tutorial <a
                                              moz-do-not-send="true"
href="http://docs.openstack.org/havana/install-guide/install/apt/content/neutron-install-network-node.html"
                                              target="_blank">
http://docs.openstack.org/havana/install-guide/install/apt/content/neutron-install-network-node.html</a><br>
                                            All is going well, I can
                                            create network's, create
                                            router, create subnets,
                                            assign all that stuff... But
                                            when I start to create VM
                                            with selected network
                                            (demo-net or ext-net as
                                            describet in documentation),
                                            VM fail to build and erase
                                            from XenServer.
                                            <br>
                                            Error message - Exception:
                                            Found no network for bridge
                                            br-int <br>
                                            <br>
                                            I looked in a lot of
                                            documentation, but can't
                                            find what I did wrong. <br>
                                            <br>
                                            Thanks. <br>
                                            <br>
                                            Full error message: <br>
                                            <br>
                                            2013-12-13 10:49:01.677
                                            27965 INFO
                                            nova.virt.xenapi.vm_utils
                                            [req-b9f302a8-8bb4-4336-92a2-eb9c8b96584e
                                            a7712da5cc054f819886dbe5a89429d5
                                            76619aca43f841e0bed1a3b89ce8b426]
                                            VBD
                                            OpaqueRef:9719605d-c322-d591-cede-01dd8940706f
                                            detach rejected, attempt
                                            1/11
                                            <br>
                                            2013-12-13 10:49:03.174
                                            27965 ERROR nova.utils
                                            [req-b9f302a8-8bb4-4336-92a2-eb9c8b96584e
                                            a7712da5cc054f819886dbe5a89429d5
                                            76619aca43f841e0bed1a3b89ce8b426]
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            Failed to spawn, rolling
                                            back
                                            <br>
                                            2013-12-13 10:49:03.174
                                            27965 TRACE nova.utils
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            Traceback (most recent call
                                            last):
                                            <br>
                                            2013-12-13 10:49:03.174
                                            27965 TRACE nova.utils
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py",
                                            line 491, in _spawn
                                            <br>
                                            2013-12-13 10:49:03.174
                                            27965 TRACE nova.utils
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            setup_network_step(undo_mgr,
                                            vm_ref)
                                            <br>
                                            2013-12-13 10:49:03.174
                                            27965 TRACE nova.utils
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py",
                                            line 153, in inner
                                            <br>
                                            2013-12-13 10:49:03.174
                                            27965 TRACE nova.utils
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]    
                                            rv = f(*args, **kwargs)
                                            <br>
                                            2013-12-13 10:49:03.174
                                            27965 TRACE nova.utils
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py",
                                            line 453, in
                                            setup_network_step
                                            <br>
                                            2013-12-13 10:49:03.174
                                            27965 TRACE nova.utils
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            self._create_vifs(instance,
                                            vm_ref, network_info)
                                            <br>
                                            2013-12-13 10:49:03.174
                                            27965 TRACE nova.utils
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py",
                                            line 1576, in _create_vifs
                                            <br>
                                            2013-12-13 10:49:03.174
                                            27965 TRACE nova.utils
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]    
                                            vm_ref=vm_ref,
                                            device=device)
                                            <br>
                                            2013-12-13 10:49:03.174
                                            27965 TRACE nova.utils
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vif.py",
                                            line 55, in plug
                                            <br>
                                            2013-12-13 10:49:03.174
                                            27965 TRACE nova.utils
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]    
                                            self._session,
                                            vif['network']['bridge'])
                                            <br>
                                            2013-12-13 10:49:03.174
                                            27965 TRACE nova.utils
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/network_utils.py",
                                            line 51, in
                                            find_network_with_bridge
                                            <br>
                                            2013-12-13 10:49:03.174
                                            27965 TRACE nova.utils
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]    
                                            raise Exception(_('Found no
                                            network for bridge %s') %
                                            bridge)
                                            <br>
                                            2013-12-13 10:49:03.174
                                            27965 TRACE nova.utils
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            Exception: Found no network
                                            for bridge br-int
                                            <br>
                                            2013-12-13 10:49:03.174
                                            27965 TRACE nova.utils
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            <br>
                                            2013-12-13 10:49:03.186
                                            27965 WARNING
                                            nova.virt.xenapi.vm_utils
                                            [req-b9f302a8-8bb4-4336-92a2-eb9c8b96584e
                                            a7712da5cc054f819886dbe5a89429d5
                                            76619aca43f841e0bed1a3b89ce8b426]
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            VM already halted, skipping
                                            shutdown...
                                            <br>
                                            2013-12-13 10:49:03.472
                                            27965 ERROR
                                            nova.virt.xenapi.vm_utils
                                            [req-b9f302a8-8bb4-4336-92a2-eb9c8b96584e
                                            a7712da5cc054f819886dbe5a89429d5
                                            76619aca43f841e0bed1a3b89ce8b426]
                                            ['HANDLE_INVALID', 'VDI',
                                            'OpaqueRef:e9a1bc76-8046-8afd-8997-caed632a80a5']
                                            <br>
                                            2013-12-13 10:49:03.472
                                            27965 TRACE
                                            nova.virt.xenapi.vm_utils
                                            Traceback (most recent call
                                            last):
                                            <br>
                                            2013-12-13 10:49:03.472
                                            27965 TRACE
                                            nova.virt.xenapi.vm_utils  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vm_utils.py",
                                            line 439, in destroy_vdi
                                            <br>
                                            2013-12-13 10:49:03.472
                                            27965 TRACE
                                            nova.virt.xenapi.vm_utils
                                            session.call_xenapi('VDI.destroy',
                                            vdi_ref)
                                            <br>
                                            2013-12-13 10:49:03.472
                                            27965 TRACE
                                            nova.virt.xenapi.vm_utils  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/driver.py",
                                            line 757, in call_xenapi
                                            <br>
                                            2013-12-13 10:49:03.472
                                            27965 TRACE
                                            nova.virt.xenapi.vm_utils
                                            return
                                            session.xenapi_request(method,
                                            args)
                                            <br>
                                            2013-12-13 10:49:03.472
                                            27965 TRACE
                                            nova.virt.xenapi.vm_utils  
                                            File
                                            "/usr/local/lib/python2.7/dist-packages/XenAPI.py",
                                            line 133, in xenapi_request
                                            <br>
                                            2013-12-13 10:49:03.472
                                            27965 TRACE
                                            nova.virt.xenapi.vm_utils
                                            result =
                                            _parse_result(getattr(self,
                                            methodname)(*full_params))
                                            <br>
                                            2013-12-13 10:49:03.472
                                            27965 TRACE
                                            nova.virt.xenapi.vm_utils  
                                            File
                                            "/usr/local/lib/python2.7/dist-packages/XenAPI.py",
                                            line 203, in _parse_result
                                            <br>
                                            2013-12-13 10:49:03.472
                                            27965 TRACE
                                            nova.virt.xenapi.vm_utils
                                            raise
                                            Failure(result['ErrorDescription'])
                                            <br>
                                            2013-12-13 10:49:03.472
                                            27965 TRACE
                                            nova.virt.xenapi.vm_utils
                                            Failure: ['HANDLE_INVALID',
                                            'VDI',
                                            'OpaqueRef:e9a1bc76-8046-8afd-8997-caed632a80a5']
                                            <br>
                                            2013-12-13 10:49:03.472
                                            27965 TRACE
                                            nova.virt.xenapi.vm_utils <br>
                                            2013-12-13 10:49:03.475
                                            27965 ERROR
                                            nova.virt.xenapi.vm_utils
                                            [req-b9f302a8-8bb4-4336-92a2-eb9c8b96584e
                                            a7712da5cc054f819886dbe5a89429d5
                                            76619aca43f841e0bed1a3b89ce8b426]
                                            Unable to destroy VDI
                                            OpaqueRef:e9a1bc76-8046-8afd-8997-caed632a80a5
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 ERROR
                                            nova.compute.manager
                                            [req-b9f302a8-8bb4-4336-92a2-eb9c8b96584e
                                            a7712da5cc054f819886dbe5a89429d5
                                            76619aca43f841e0bed1a3b89ce8b426]
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            Instance failed to spawn
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            Traceback (most recent call
                                            last):
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/compute/manager.py",
                                            line 1407, in _spawn
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]    
                                            block_device_info)
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/driver.py",
                                            line 216, in spawn
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]    
                                            admin_password,
                                            network_info,
                                            block_device_info)
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py",
                                            line 359, in spawn
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]    
                                            network_info,
                                            block_device_info,
                                            name_label, rescue)
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py",
                                            line 505, in _spawn
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            undo_mgr.rollback_and_reraise(msg=msg,
                                            instance=instance)
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/utils.py",
                                            line 979, in
                                            rollback_and_reraise
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]    
                                            self._rollback()
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py",
                                            line 491, in _spawn
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            setup_network_step(undo_mgr,
                                            vm_ref)
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py",
                                            line 153, in inner
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]    
                                            rv = f(*args, **kwargs)
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py",
                                            line 453, in
                                            setup_network_step
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            self._create_vifs(instance,
                                            vm_ref, network_info)
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py",
                                            line 1576, in _create_vifs
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]    
                                            vm_ref=vm_ref,
                                            device=device)
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vif.py",
                                            line 55, in plug
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]    
                                            self._session,
                                            vif['network']['bridge'])
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/network_utils.py",
                                            line 51, in
                                            find_network_with_bridge
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]    
                                            raise Exception(_('Found no
                                            network for bridge %s') %
                                            bridge)
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            Exception: Found no network
                                            for bridge br-int
                                            <br>
                                            2013-12-13 10:49:03.476
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            <br>
                                            2013-12-13 10:49:03.548
                                            27965 AUDIT
                                            nova.compute.manager
                                            [req-b9f302a8-8bb4-4336-92a2-eb9c8b96584e
                                            a7712da5cc054f819886dbe5a89429d5
                                            76619aca43f841e0bed1a3b89ce8b426]
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            Terminating instance
                                            <br>
                                            2013-12-13 10:49:04.174
                                            27965 INFO
                                            nova.virt.xenapi.vmops
                                            [req-b9f302a8-8bb4-4336-92a2-eb9c8b96584e
                                            a7712da5cc054f819886dbe5a89429d5
                                            76619aca43f841e0bed1a3b89ce8b426]
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            Destroying VM
                                            <br>
                                            2013-12-13 10:49:04.179
                                            27965 WARNING
                                            nova.virt.xenapi.vmops
                                            [req-b9f302a8-8bb4-4336-92a2-eb9c8b96584e
                                            a7712da5cc054f819886dbe5a89429d5
                                            76619aca43f841e0bed1a3b89ce8b426]
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            VM is not present, skipping
                                            destroy...
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 ERROR
                                            nova.compute.manager
                                            [req-b9f302a8-8bb4-4336-92a2-eb9c8b96584e
                                            a7712da5cc054f819886dbe5a89429d5
                                            76619aca43f841e0bed1a3b89ce8b426]
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            Error: Found no network for
                                            bridge br-int
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            Traceback (most recent call
                                            last):
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/compute/manager.py",
                                            line 1037, in
                                            _build_instance
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            set_access_ip=set_access_ip)
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/compute/manager.py",
                                            line 1410, in _spawn
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]    
                                            LOG.exception(_('Instance
                                            failed to spawn'),
                                            instance=instance)
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/compute/manager.py",
                                            line 1407, in _spawn
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]    
                                            block_device_info)
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/driver.py",
                                            line 216, in spawn
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]    
                                            admin_password,
                                            network_info,
                                            block_device_info)
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py",
                                            line 359, in spawn
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]    
                                            network_info,
                                            block_device_info,
                                            name_label, rescue)
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py",
                                            line 505, in _spawn
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            undo_mgr.rollback_and_reraise(msg=msg,
                                            instance=instance)
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/utils.py",
                                            line 979, in
                                            rollback_and_reraise
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]    
                                            self._rollback()
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py",
                                            line 491, in _spawn
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            setup_network_step(undo_mgr,
                                            vm_ref)
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py",
                                            line 153, in inner
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]    
                                            rv = f(*args, **kwargs)
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py",
                                            line 453, in
                                            setup_network_step
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            self._create_vifs(instance,
                                            vm_ref, network_info)
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py",
                                            line 1576, in _create_vifs
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]    
                                            vm_ref=vm_ref,
                                            device=device)
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vif.py",
                                            line 55, in plug
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]    
                                            self._session,
                                            vif['network']['bridge'])
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]  
                                            File
                                            "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/network_utils.py",
                                            line 51, in
                                            find_network_with_bridge
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]    
                                            raise Exception(_('Found no
                                            network for bridge %s') %
                                            bridge)
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
                                            Exception: Found no network
                                            for bridge br-int
                                            <br>
                                            2013-12-13 10:49:04.422
                                            27965 TRACE
                                            nova.compute.manager
                                            [instance:
                                            5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
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