** Changed in: nova
Status: Fix Committed => Fix Released
** Changed in: nova
Milestone: None => kilo-3
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https://bugs.launchpad.net/bugs/1398349
Title:
nova service-update fails for services on non-child (top) cell
Status in OpenStack Compute (Nova):
Fix Released
Bug description:
Nova service-update fails for services on non-child (top) cell.
How to reproduce:
1) List available services using below command.
$ nova --os-username admin service-list
Output:
+----------------+------------------+---------------------+----------+---------+-------+----------------------------+-----------------+
| Id | Binary | Host | Zone | Status | State | Updated_at | Disabled Reason |
+----------------+------------------+---------------------+----------+---------+-------+----------------------------+-----------------+
| region!child@1 | nova-conductor | region!child@ubuntu | internal | enabled
| up | 2014-08-18T06:17:36.000000 | - |
| region!child@3 | nova-cells | region!child@ubuntu | internal | enabled | up
| 2014-08-18T06:17:29.000000 | - |
| region!child@4 | nova-scheduler | region!child@ubuntu | internal | enabled
| up | 2014-08-18T06:17:30.000000 | - |
| region!child@5 | nova-compute | region!child@ubuntu | nova | enabled | up |
2014-08-18T06:17:31.000000 | - |
| region@1 | nova-cells | region@ubuntu | internal | enabled | up |
2014-08-18T06:17:29.000000 | - |
| region@2 | nova-cert | region@ubuntu | internal | enabled | down |
2014-08-18T06:08:28.000000 | - |
| region@3 | nova-consoleauth | region@ubuntu | internal | enabled | up |
2014-08-18T06:17:37.000000 | - |
+----------------+------------------+---------------------+----------+---------+-------+----------------------------+-----------------+
2) disable one of the services on top cell (e.g. nova-cert)
$ nova --os-username admin service-disable 'region@ubuntu' nova-cert
The above command gives the following error:
a) On user console:
ERROR (ClientException): The server has either erred or is incapable of
performing the requested operation. (HTTP 500) (Request-ID:
req-529f926f-fbda-4748-afb7-dfe8c7cc7877)
b) In nova-api logs, it shows following error message:
2014-12-01 00:50:08.459 TRACE nova.api.openstack Traceback (most recent call
last):
2014-12-01 00:50:08.459 TRACE nova.api.openstack File
"/usr/local/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line
134, in _dispatch_and_reply
2014-12-01 00:50:08.459 TRACE nova.api.openstack incoming.message))
2014-12-01 00:50:08.459 TRACE nova.api.openstack File
"/usr/local/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line
177, in _dispatch
2014-12-01 00:50:08.459 TRACE nova.api.openstack return
self._do_dispatch(endpoint, method, ctxt, args)
2014-12-01 00:50:08.459 TRACE nova.api.openstack
2014-12-01 00:50:08.459 TRACE nova.api.openstack File
"/usr/local/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line
123, in _do_dispatch
2014-12-01 00:50:08.459 TRACE nova.api.openstack result =
getattr(endpoint, method)(ctxt, **new_args)
2014-12-01 00:50:08.459 TRACE nova.api.openstack
2014-12-01 00:50:08.459 TRACE nova.api.openstack File
"/opt/stack/nova/nova/cells/manager.py", line 296, in service_update
2014-12-01 00:50:08.459 TRACE nova.api.openstack service =
response.value_or_raise()
2014-12-01 00:50:08.459 TRACE nova.api.openstack File
"/opt/stack/nova/nova/cells/messaging.py", line 407, in process
2014-12-01 00:50:08.459 TRACE nova.api.openstack next_hop =
self._get_next_hop()
2014-12-01 00:50:08.459 TRACE nova.api.openstack File
"/opt/stack/nova/nova/cells/messaging.py", line 362, in _get_next_hop
2014-12-01 00:50:08.459 TRACE nova.api.openstack dest_hops =
target_cell.count(_PATH_CELL_SEP)
2014-12-01 00:50:08.459 TRACE nova.api.openstack
2014-12-01 00:50:08.459 TRACE nova.api.openstack AttributeError: 'NoneType'
object has no attribute 'count'
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