[Rdo-list] nova cells with neutron network

[Ihar Hrachyshka]

> On 17 Sep 2015, at 09:41, Sha Li <lisha2010hust at gmail.com> wrote:
> 
> Hi,
> 
> I am try to test the nova cells function with  Juno release.
> My test deployment consits of one api-cell node, one child-cell node and one compute node.
> 
> api-cell node:  nova-api, nova-cells, nova-cert, nova-condoleauth, nova-novncproxy
> child-cell node: nova-cells, nova-conductor, nova-scheduler
> compute node: nova-compute
> 
> I found most deployment example is using nova-network with nova-cells. I want to use neutron. So I had keystone , glance, and neutron-server, neutron-dhcp, neutron-l3  shared between all cells and deployed all on the api-cell node.
> 
> I encounterd similar problem as described in this bug report
> https://bugs.launchpad.net/nova/+bug/1348103
> 
> When boot a new instance, nova-compute fails to get the network-vif-plugged  notification and get time out waiting for the call back.
> But on the neutron server side, it looks like the notification had been successfully sent and get the 200 response code from nova-api server
> 
> I had to set
> vif_plugging_is_fatal = False
> Then the instnace can be spawned normally
> 
> I am wondering how people use neutron with nova-cells, is this going to cause any trouble in large scale production deployment.
> 
> 
> Cheers,
> Sha
> 
> 
> 
> --- neutron server log file
> 2015-08-22 00:20:35.464 16812 DEBUG neutron.notifiers.nova [-] Sending events: [{'status': 'completed', 'tag': u'2839ca4d-b632-4d64-a174-ecfe34a7a746', 'name': 'network-vif-plugged', 'server_uuid': u'092c8bc4-3643-44c0-b79e-ad5caac18b3d'}] send_events /usr/lib/python2.7/site-packages/neutron/notifiers/nova.py:232
> 2015-08-22 00:20:35.468 16812 INFO urllib3.connectionpool [-] Starting new HTTP connection (1): 192.168.81.221
> 2015-08-22 00:20:35.548 16812 DEBUG urllib3.connectionpool [-] "POST /v2/338aad513c604880a6a0dcc58b88b905/os-server-external-events HTTP/1.1" 200 183 _make_request /usr/lib/python2.7/site-packages/urllib3/connectionpool.py:357
> 2015-08-22 00:20:35.550 16812 INFO neutron.notifiers.nova [-] Nova event response: {u'status': u'completed', u'tag': u'2839ca4d-b632-4d64-a174-ecfe34a7a746', u'name': u'network-vif-plugged', u'server_uuid': u'092c8bc4-3643-44c0-b79e-ad5caac18b3d', u'code': 200}
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I suggest to ask at operators@ mailing list in openstack. This list is for RDO, and the question seems more general.

http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators

Ihar
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