[Bug 1190280] [NEW] Nova compute starts too early when combined with libvirt and Xen

Wed Jun 12 15:52:11 UTC 2013

Public bug reported:

I have a nova-compute/libvirt/xen environment (which is not working
properly yet due to another bug I reported here:
https://bugs.launchpad.net/nova/+bug/1190262) and after each reboot
nova-compute is not starting. The log shows that it tries to connect to
localhost:8000 but it fails. Obviously Xen hasn't come up yet before
nova.

2013-06-12 17:36:21.991 1191 INFO nova.manager [-] Skipping periodic task _periodic_update_dns because its interval is negative
2013-06-12 17:36:22.965 1191 INFO nova.virt.driver [-] Loading compute driver 'libvirt.LibvirtDriver'
2013-06-12 17:36:23.743 INFO nova.openstack.common.rpc.common [req-382618f3-28af-4452-8189-1d0ef7de1aaf None None] Connected to AMQP server on 10.0.0.1:5672
2013-06-12 17:36:23.873 1191 AUDIT nova.service [-] Starting compute node (version 2013.1.1)
2013-06-12 17:36:23.937 1191 ERROR nova.virt.libvirt.driver [-] Connection to libvirt failed: unable to connect to 'localhost:8000': Connection refused
2013-06-12 17:36:23.937 1191 TRACE nova.virt.libvirt.driver Traceback (most recent call last):
2013-06-12 17:36:23.937 1191 TRACE nova.virt.libvirt.driver   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 627, in _connect
2013-06-12 17:36:23.937 1191 TRACE nova.virt.libvirt.driver     return libvirt.openAuth(uri, auth, 0)
2013-06-12 17:36:23.937 1191 TRACE nova.virt.libvirt.driver   File "/usr/lib/python2.7/dist-packages/libvirt.py", line 102, in openAuth
2013-06-12 17:36:23.937 1191 TRACE nova.virt.libvirt.driver     if ret is None:raise libvirtError('virConnectOpenAuth() failed')
2013-06-12 17:36:23.937 1191 TRACE nova.virt.libvirt.driver libvirtError: unable to connect to 'localhost:8000': Connection refused
2013-06-12 17:36:23.937 1191 TRACE nova.virt.libvirt.driver 
2013-06-12 17:36:24.012 1191 WARNING nova.virt.libvirt.driver [-] URI xen:/// does not support events
2013-06-12 17:36:24.015 1191 ERROR nova.virt.libvirt.driver [-] Nova requires libvirt version 0.9.6 or greater.
2013-06-12 17:36:24.066 1191 ERROR nova.virt.libvirt.driver [-] Connection to libvirt failed: unable to connect to 'localhost:8000': Connection refused
2013-06-12 17:36:24.066 1191 TRACE nova.virt.libvirt.driver Traceback (most recent call last):
2013-06-12 17:36:24.066 1191 TRACE nova.virt.libvirt.driver   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 627, in _connect
2013-06-12 17:36:24.066 1191 TRACE nova.virt.libvirt.driver     return libvirt.openAuth(uri, auth, 0)
2013-06-12 17:36:24.066 1191 TRACE nova.virt.libvirt.driver   File "/usr/lib/python2.7/dist-packages/libvirt.py", line 102, in openAuth
2013-06-12 17:36:24.066 1191 TRACE nova.virt.libvirt.driver     if ret is None:raise libvirtError('virConnectOpenAuth() failed')
2013-06-12 17:36:24.066 1191 TRACE nova.virt.libvirt.driver libvirtError: unable to connect to 'localhost:8000': Connection refused
2013-06-12 17:36:24.066 1191 TRACE nova.virt.libvirt.driver 
2013-06-12 17:36:24.081 WARNING nova.virt.libvirt.driver [req-a35b8394-98fa-4bdd-9a26-82fe9104bfbf None None] URI xen:/// does not support events
2013-06-12 17:36:24.102 1191 CRITICAL nova [-] 'NoneType' object has no attribute 'numOfDomains'
2013-06-12 17:36:24.102 1191 TRACE nova Traceback (most recent call last):
2013-06-12 17:36:24.102 1191 TRACE nova   File "/usr/bin/nova-compute", line 85, in <module>
2013-06-12 17:36:24.102 1191 TRACE nova     service.wait()
2013-06-12 17:36:24.102 1191 TRACE nova   File "/usr/lib/python2.7/dist-packages/nova/service.py", line 689, in wait
2013-06-12 17:36:24.102 1191 TRACE nova     _launcher.wait()
2013-06-12 17:36:24.102 1191 TRACE nova   File "/usr/lib/python2.7/dist-packages/nova/service.py", line 209, in wait
2013-06-12 17:36:24.102 1191 TRACE nova     super(ServiceLauncher, self).wait()
2013-06-12 17:36:24.102 1191 TRACE nova   File "/usr/lib/python2.7/dist-packages/nova/service.py", line 179, in wait
2013-06-12 17:36:24.102 1191 TRACE nova     service.wait()
2013-06-12 17:36:24.102 1191 TRACE nova   File "/usr/lib/python2.7/dist-packages/eventlet/greenthread.py", line 168, in wait
2013-06-12 17:36:24.102 1191 TRACE nova     return self._exit_event.wait()
2013-06-12 17:36:24.102 1191 TRACE nova   File "/usr/lib/python2.7/dist-packages/eventlet/event.py", line 116, in wait
2013-06-12 17:36:24.102 1191 TRACE nova     return hubs.get_hub().switch()
2013-06-12 17:36:24.102 1191 TRACE nova   File "/usr/lib/python2.7/dist-packages/eventlet/hubs/hub.py", line 187, in switch
2013-06-12 17:36:24.102 1191 TRACE nova     return self.greenlet.switch()
2013-06-12 17:36:24.102 1191 TRACE nova   File "/usr/lib/python2.7/dist-packages/eventlet/greenthread.py", line 194, in main
2013-06-12 17:36:24.102 1191 TRACE nova     result = function(*args, **kwargs)
2013-06-12 17:36:24.102 1191 TRACE nova   File "/usr/lib/python2.7/dist-packages/nova/service.py", line 147, in run_server
2013-06-12 17:36:24.102 1191 TRACE nova     server.start()
2013-06-12 17:36:24.102 1191 TRACE nova   File "/usr/lib/python2.7/dist-packages/nova/service.py", line 429, in start
2013-06-12 17:36:24.102 1191 TRACE nova     self.manager.init_host()
2013-06-12 17:36:24.102 1191 TRACE nova   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 597, in init_host
2013-06-12 17:36:24.102 1191 TRACE nova     self._destroy_evacuated_instances(context)
2013-06-12 17:36:24.102 1191 TRACE nova   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 434, in _destroy_evacuated_instances
2013-06-12 17:36:24.102 1191 TRACE nova     local_instances = self._get_instances_on_driver(context)
2013-06-12 17:36:24.102 1191 TRACE nova   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 397, in _get_instances_on_driver
2013-06-12 17:36:24.102 1191 TRACE nova     driver_uuids = self.driver.list_instance_uuids()
2013-06-12 17:36:24.102 1191 TRACE nova   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 681, in list_instance_uuids
2013-06-12 17:36:24.102 1191 TRACE nova     for name in self.list_instances()]
2013-06-12 17:36:24.102 1191 TRACE nova   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 663, in list_instances
2013-06-12 17:36:24.102 1191 TRACE nova     for domain_id in self.list_instance_ids():
2013-06-12 17:36:24.102 1191 TRACE nova   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 657, in list_instance_ids
2013-06-12 17:36:24.102 1191 TRACE nova     if self._conn.numOfDomains() == 0:
2013-06-12 17:36:24.102 1191 TRACE nova AttributeError: 'NoneType' object has no attribute 'numOfDomains'
2013-06-12 17:36:24.102 1191 TRACE nova

** Affects: nova (Ubuntu)
     Importance: Undecided
         Status: New

** Summary changed:

- Nova compute starts to early when combined with libvirt and Xen
+ Nova compute starts too early when combined with libvirt and Xen

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https://bugs.launchpad.net/bugs/1190280

Title:
  Nova compute starts too early when combined with libvirt and Xen

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