[Openstack] Nova.Scheduler TypeError: can't compare datetime.datetime to NoneType

Unmesh Gurjar unmesh.gurjar at gmail.com
Fri Feb 8 05:49:38 UTC 2013


Greg,

IMO, this qualifies as a bug.

To debug what's causing this scenario is your case, I would suggest
checking the database connection setting in nova.conf on your Compute &
Controller host. AFAIK, it either means Compute's status is not being
updated (Compute service down) or its being updated in a different database
server.

Hope it helps.

Regards,
Unmesh G.

On Fri, Feb 8, 2013 at 5:55 AM, Greg Chavez <greg.chavez at gmail.com> wrote:

>
> So I'm getting this when I try to boot a Cirros image in scheduler.log.  I
> have a controller node, network node, and one compute node setup with
> Folsom on RHEL 6.  Any ideas?  Thanks!
>
> 2013-02-07 19:21:45 WARNING nova.scheduler.manager
> [req-358f5c96-e236-4167-b6a9-ccc02c853d41 65fdf1a86cfa4e50aafb6c132106e00f
> cec6647113c74b66b308de14032e591a] Failed to schedule_run_instance: can't
> compare datetime.datetime to NoneType
> 2013-02-07 19:21:45 WARNING nova.scheduler.manager
> [req-358f5c96-e236-4167-b6a9-ccc02c853d41 65fdf1a86cfa4e50aafb6c132106e00f
> cec6647113c74b66b308de14032e591a] [instance:
> 1a318b16-7d98-40ef-acb9-63d705542200] Setting instance to ERROR state.
> 2013-02-07 19:21:45 1688 ERROR nova.openstack.common.rpc.amqp [-]
> Exception during message handling
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp Traceback
> (most recent call last):
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.6/site-packages/nova/openstack/common/rpc/amqp.py", line
> 276, in _process_data
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp     rval =
> self.proxy.dispatch(ctxt, version, method, **args)
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.6/site-packages/nova/openstack/common/rpc/dispatcher.py",
> line 145, in dispatch
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp     return
> getattr(proxyobj, method)(ctxt, **kwargs)
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.6/site-packages/nova/scheduler/manager.py", line 118, in
> run_instance
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp     context,
> ex, request_spec)
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib64/python2.6/contextlib.py", line 23, in __exit__
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp
> self.gen.next()
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.6/site-packages/nova/scheduler/manager.py", line 106, in
> run_instance
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp
> requested_networks, is_first_time, filter_properties)
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.6/site-packages/nova/scheduler/multi.py", line 69, in
> schedule_run_instance
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp     return
> self.drivers['compute'].schedule_run_instance(*args, **kwargs)
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.6/site-packages/nova/scheduler/filter_scheduler.py", line
> 73, in schedule_run_instance
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp
> filter_properties, instance_uuids)
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.6/site-packages/nova/scheduler/filter_scheduler.py", line
> 251, in _schedule
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp
> elevated, topic)
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.6/site-packages/nova/scheduler/host_manager.py", line
> 284, in get_all_host_states
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp
> host_state.update_from_compute_node(compute)
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.6/site-packages/nova/scheduler/host_manager.py", line
> 125, in update_from_compute_node
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp     if
> self.updated and self.updated > compute['updated_at']:
> 2013-02-07 19:21:45 1688 TRACE nova.openstack.common.rpc.amqp TypeError:
> can't compare datetime.datetime to NoneType
>
> --
> \*..+.-
> --Greg Chavez
> +//..;};
>
> _______________________________________________
> Mailing list: https://launchpad.net/~openstack
> Post to     : openstack at lists.launchpad.net
> Unsubscribe : https://launchpad.net/~openstack
> More help   : https://help.launchpad.net/ListHelp
>
>


-- 
Thanks & Regards,
Unmesh G.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack/attachments/20130208/3ffc9f91/attachment.html>


More information about the Openstack mailing list