[Bug 842845] Re: problems starting multiple lxc instances concurrently

[Serge Hallyn]

Here is the relevant excerpt from nova-compute.log.  note that the first
line (at /usr/lib/python2.7/dist-
packages/nova/virt/libvirt/connection.py:604)is two lines before the
timer call which should wait until the container is booted.

2011-09-27 21:20:43,830 DEBUG nova.virt.libvirt_conn [-] instance instance-0000003d: is running from (pid=2100) spawn /usr/lib/python2.7/dist-packages/nova/virt/libvirt/connection.py:604
2011-09-27 21:20:43,831 DEBUG nova.compute.manager [-] Checking state of instance-0000003d from (pid=2100) _get_power_state /usr/lib/python2.7/dist-packages/nova/compute/manager.py:188
2011-09-27 21:20:43,868 ERROR nova.exception [-] Uncaught exception
(nova.exception): TRACE: Traceback (most recent call last):
(nova.exception): TRACE:   File "/usr/lib/python2.7/dist-packages/nova/exception.py", line 98, in wrapped
(nova.exception): TRACE:     return f(*args, **kw)
(nova.exception): TRACE:   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 454, in run_instance
(nova.exception): TRACE:     self._run_instance(context, instance_id, **kwargs)
(nova.exception): TRACE:   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 432, in _run_instance
(nova.exception): TRACE:     current_power_state = self._get_power_state(context, instance)
(nova.exception): TRACE:   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 190, in _get_power_state
(nova.exception): TRACE:     return self.driver.get_info(instance['name'])["state"]
(nova.exception): TRACE:   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/connection.py", line 1204, in get_info
(nova.exception): TRACE:     (state, max_mem, mem, num_cpu, cpu_time) = virt_dom.info()
(nova.exception): TRACE:   File "/usr/lib/python2.7/dist-packages/libvirt.py", line 1059, in info
(nova.exception): TRACE:     if ret is None: raise libvirtError ('virDomainGetInfo() failed', dom=self)
(nova.exception): TRACE: libvirtError: internal error Unable to get cgroup for instance-0000003d
(nova.exception): TRACE: 
2011-09-27 21:20:43,869 ERROR nova.rpc [-] Exception during message handling
(nova.rpc): TRACE: Traceback (most recent call last):
(nova.rpc): TRACE:   File "/usr/lib/python2.7/dist-packages/nova/rpc/impl_kombu.py", line 620, in _process_data
(nova.rpc): TRACE:     rval = node_func(context=ctxt, **node_args)
(nova.rpc): TRACE:   File "/usr/lib/python2.7/dist-packages/nova/exception.py", line 129, in wrapped
(nova.rpc): TRACE:     raise Error(str(e))
(nova.rpc): TRACE: Error: internal error Unable to get cgroup for instance-0000003d
(nova.rpc): TRACE: 
2011-09-27 21:20:43,964 INFO nova.virt.libvirt_conn [-] Instance instance-0000003d spawned successfully.

Note also that it says the container spawned successfully.  And while
the libvirt container is in fact running, euca-describe-instances shows:

serge at stack:~$ euca-describe-instances
RESERVATION     r-lj3xi0v8      test-project    default
INSTANCE        i-0000003d      ami-00000003    11.0.0.5        11.0.0.5        pending mykey    3               m1.small        2011-09-28T02:20:25Z    nova    ami-00000000   ami-00000000
INSTANCE        i-0000003c      ami-00000003    11.0.0.4        11.0.0.4        running mykey    2               m1.small        2011-09-28T02:20:24Z    nova    ami-00000000   ami-00000000
INSTANCE        i-0000003b      ami-00000003    11.0.0.3        11.0.0.3        pending mykey    1               m1.small        2011-09-28T02:20:24Z    nova    ami-00000000   ami-00000000
INSTANCE        i-0000003a      ami-00000003    11.0.0.2        11.0.0.2        running mykey    0               m1.small        2011-09-28T02:20:23Z    nova    ami-00000000   ami-00000000


so i-0000003d is marked pending.

-- 
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to nova in Ubuntu.
https://bugs.launchpad.net/bugs/842845

Title:
  problems starting multiple lxc instances concurrently

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/842845/+subscriptions