I've installed nova-compute along with xen and libvirt in a fresh Ubuntu 11.10 install. But I'm experiencing some problems to get it running.
nova-compute service fails to start and nova-compute.log shows this error message: 2011-12-26 09:36:03,679 CRITICAL nova [-] [Errno 2] No such file or directory: '/var/lib/nova/instances/Domain-0/console.ring' (nova): TRACE: Traceback (most recent call last): (nova): TRACE: File "/usr/bin/nova-compute", line 49, in <module> (nova): TRACE: service.wait() (nova): TRACE: File "/usr/lib/python2.7/dist-packages/nova/service.py", line 357, in wait (nova): TRACE: _launcher.wait() (nova): TRACE: File "/usr/lib/python2.7/dist-packages/nova/service.py", line 107, in wait (nova): TRACE: service.wait() (nova): TRACE: File "/usr/lib/python2.7/dist-packages/eventlet/greenthread.py", line 166, in wait (nova): TRACE: return self._exit_event.wait() (nova): TRACE: File "/usr/lib/python2.7/dist-packages/eventlet/event.py", line 116, in wait (nova): TRACE: return hubs.get_hub().switch() (nova): TRACE: File "/usr/lib/python2.7/dist-packages/eventlet/hubs/hub.py", line 177, in switch (nova): TRACE: return self.greenlet.switch() (nova): TRACE: File "/usr/lib/python2.7/dist-packages/eventlet/greenthread.py", line 192, in main (nova): TRACE: result = function(*args, **kwargs) (nova): TRACE: File "/usr/lib/python2.7/dist-packages/nova/service.py", line 77, in run_server (nova): TRACE: server.start() (nova): TRACE: File "/usr/lib/python2.7/dist-packages/nova/service.py", line 137, in start (nova): TRACE: self.manager.init_host() (nova): TRACE: File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 157, in init_host (nova): TRACE: self.driver.init_host(host=self.host) (nova): TRACE: File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/connection.py", line 253, in init_host (nova): TRACE: self._start_console_logger(name, fifo_path, ringbuffer_path) (nova): TRACE: File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/connection.py", line 297, in _start_console_logger (nova): TRACE: self.console_loggers[name] = ConsoleLogger(fifo_path, ringbuffer_path) (nova): TRACE: File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/connection.py", line 186, in __init__ (nova): TRACE: FLAGS.libvirt_console_log_size) (nova): TRACE: File "/usr/lib/python2.7/dist-packages/nova/utils.py", line 932, in __init__ (nova): TRACE: self.f = self._open(backing_file) (nova): TRACE: File "/usr/lib/python2.7/dist-packages/nova/utils.py", line 970, in _open (nova): TRACE: fd = os.open(filename, os.O_RDWR | os.O_CREAT, 0666) (nova): TRACE: OSError: [Errno 2] No such file or directory: '/var/lib/nova/instances/Domain-0/console.ring' Is there anything else I need to do to make Diablo work with Xen? It seems that openstack is considering Domain-0 an instance. I have a Ubuntu 10.04 configuration that works fine, I've found out that in this configuration "virsh list" doesn't show Domain-0, so that may be the problem. But for libvirt showing the Domain-0 vm seems like the correct behaviour, nova-compute is the one that should ignore it. I've filed a bug ( https://bugs.launchpad.net/bugs/912701 ) and also a question ( https://answers.launchpad.net/nova/+question/182917 ), but I've got no answer yet. This is pretty critical, is there something I can do to workaround it? I would want to avoid using xenapi directly.
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