Multi-Zone finally working on ESSEX but cant "nova list" (KeyError: 'uuid') + doubts

Asked by Alejandro Comisario on 2012-01-25

Hey guys, we finally got MultiZone working on Essex with KVM as hypervisor (trunk version 2012.1-dev (2012.1-LOCALBRANCH:LOCALREVISION)) we have one Parent zone and one child zone (named "zoneE") all integrated with keystone ( nova, glance ) and we are able to spawn instances across both zones !
After making this work after a couple of days of work, configuration and debbuging we have one doubt, and one ERROR.
So, lets hope you can help us on both of them.

THE DOUBT:
This is deffinitely because we dont clearly understand the whole concept but, why is that "nova.scheduler.least_cost.weighted_sum" function chooses as prefered host the LESS RAM memory host ? this seems to choose just one host till is fully depleted, and then, chooses the other one ! that doesnt sound like a good way of balancing instances across the zones by default, so, since we didnt know how to fix that behavior, just added a "reverse=True" in the sorted functions, so problem "fixed".
The thing is, if there is (maybe trough nova.conf) a way of controlling this ( the sort order ), can any one shed some light on how to do it ?

THE ERROR / BUG:
At the moment that you spawn successfully an instance from the parent zone, to the child zone (the instance is successfully spawned and running on the child zone) the "nova list" (or curl to server/detail) to the parent zone just BROKE.
It apperars that when the parent zone calls the "server/detail" of the child zone, the json returned by the child, has the "uuid" field printed into the "id" field, so you can see on nova-api.log, having a keyerror "uuid" that breaks the call, you can check the pasteBin link below, or you can keep reading and watch the nova-api.log stack from here.

Waiting for some feedback !
Cheers!
Alejandro.

PASTEBIN LINK:
--------------
http://pastebin.com/VGt8A3HX

ENTIRE NOVA-API STACK TRACE:
----------------------------
2012-01-25 14:42:15,793 DEBUG nova [-] HTTP PERF: 0.10457 seconds to GET 172.16.146.139:35357 /v2.0/tokens/8de5e217-9615-443c-8b7e-09cabf4b4af8) from (pid=7488) getresponse /usr/local/lib/python2.6/dist-packages/keystone-1.0-py2.6.egg/keystone/common/bufferedhttp.py:99
2012-01-25 14:42:15,894 DEBUG nova [-] HTTP PERF: 0.10093 seconds to GET 172.16.146.139:35357 /v2.0/tokens/8de5e217-9615-443c-8b7e-09cabf4b4af8) from (pid=7488) getresponse /usr/local/lib/python2.6/dist-packages/keystone-1.0-py2.6.egg/keystone/common/bufferedhttp.py:99
2012-01-25 14:42:15,897 DEBUG routes.middleware [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Matched GET /9574193127d1439fb09d1c0ef3eb26d5/servers/detail from (pid=7488) __call__ /usr/lib/pymodules/python2.6/routes/middleware.py:100
2012-01-25 14:42:15,897 DEBUG routes.middleware [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Route path: '/:(project_id)/servers/:(id)', defaults: {'action': u'process', 'controller': <nova.api.openstack.v2.extensions.RequestExtensionResource object at 0x261b850>} from (pid=7488) __call__ /usr/lib/pymodules/python2.6/routes/middleware.py:102
2012-01-25 14:42:15,898 DEBUG routes.middleware [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Match dict: {'action': u'process', 'controller': <nova.api.openstack.v2.extensions.RequestExtensionResource object at 0x261b850>, 'project_id': u'9574193127d1439fb09d1c0ef3eb26d5', 'id': u'detail'} from (pid=7488) __call__ /usr/lib/pymodules/python2.6/routes/middleware.py:103
2012-01-25 14:42:15,899 INFO nova.api.openstack.wsgi [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] GET http://172.16.162.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5/servers/detail
2012-01-25 14:42:15,899 DEBUG nova.api.openstack.wsgi [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Unrecognized Content-Type provided in request from (pid=7488) deserialize_body /usr/lib/python2.6/dist-packages/nova/api/openstack/wsgi.py:257
2012-01-25 14:42:15,900 DEBUG routes.middleware [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Matched GET /9574193127d1439fb09d1c0ef3eb26d5/servers/detail from (pid=7488) __call__ /usr/lib/pymodules/python2.6/routes/middleware.py:100
2012-01-25 14:42:15,901 DEBUG routes.middleware [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Route path: '/{project_id}/servers/detail', defaults: {'action': u'detail', 'controller': <nova.api.openstack.wsgi.Resource object at 0x26d5a50>} from (pid=7488) __call__ /usr/lib/pymodules/python2.6/routes/middleware.py:102
2012-01-25 14:42:15,902 DEBUG routes.middleware [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Match dict: {'action': u'detail', 'controller': <nova.api.openstack.wsgi.Resource object at 0x26d5a50>, 'project_id': u'9574193127d1439fb09d1c0ef3eb26d5'} from (pid=7488) __call__ /usr/lib/pymodules/python2.6/routes/middleware.py:103
2012-01-25 14:42:15,902 INFO nova.api.openstack.wsgi [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] GET http://172.16.162.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5/servers/detail
2012-01-25 14:42:15,903 DEBUG nova.api.openstack.wsgi [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Unrecognized Content-Type provided in request from (pid=7488) deserialize_body /usr/lib/python2.6/dist-packages/nova/api/openstack/wsgi.py:257
2012-01-25 14:42:15,903 DEBUG nova.compute.api [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Searching by: {'deleted': False, 'local_zone_only': False} from (pid=7488) get_all /usr/lib/python2.6/dist-packages/nova/compute/api.py:937
2012-01-25 14:42:16,116 DEBUG novaclient.client [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] REQ: curl -i http://172.16.146.139:5000/v2.0/tokens -X POST -H "Content-Type: application/json" -H "User-Agent: python-novaclient"
 from (pid=7488) http_log /usr/lib/python2.6/dist-packages/novaclient/client.py:76
2012-01-25 14:42:16,116 DEBUG novaclient.client [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] REQ BODY: {"auth": {"passwordCredentials": {"username": "esmadmin", "password": "123456"}}}
 from (pid=7488) http_log /usr/lib/python2.6/dist-packages/novaclient/client.py:78
2012-01-25 14:42:16,117 DEBUG novaclient.client [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] RESP:{'date': 'Wed, 25 Jan 2012 19:42:16 GMT', 'vary': 'X-Auth-Token', 'content-length': '1583', 'status': '200', 'content-type': 'application/json; charset=UTF-8'} {"access": {"token": {"expires": "2012-01-26T15:42:15.970710", "tenants": [{"id": "df58327d2b6c4e86b1df9b4671c5b54b", "name": "esmadmin"}], "id": "d9164294-0e8f-4f01-94c6-eb4b460c95ee", "tenant": {"id": "df58327d2b6c4e86b1df9b4671c5b54b", "name": "esmadmin"}}, "serviceCatalog": [{"endpoints": [{"adminURL": "http://172.16.163.5:8774/v1.1/df58327d2b6c4e86b1df9b4671c5b54b", "region": "zoneE", "id": "5", "internalURL": "http://172.16.163.5:8774/v1.1/df58327d2b6c4e86b1df9b4671c5b54b", "publicURL": "http://172.16.163.5:8774/v1.1/df58327d2b6c4e86b1df9b4671c5b54b"}], "type": "compute", "name": "nova"}, {"endpoints": [{"adminURL": "http://172.16.147.123/v1.1/df58327d2b6c4e86b1df9b4671c5b54b", "region": "RegionOne", "id": "2", "internalURL": "http://172.16.147.123:9292/v1.1/df58327d2b6c4e86b1df9b4671c5b54b", "publicURL": "http://172.16.147.123/v1.1/df58327d2b6c4e86b1df9b4671c5b54b"}], "type": "image", "name": "glance"}, {"endpoints": [{"adminURL": "http://172.16.146.139:35357/v2.0", "region": "RegionOne", "id": "3", "internalURL": "http://172.16.146.139:5000/v2.0", "publicURL": "http://172.16.146.139:5000/v2.0"}], "type": "identity", "name": "keystone"}, {"endpoints": [{"adminURL": "http://172.16.0.88:8080/", "region": "RegionOne", "id": "4", "internalURL": "http://172.16.0.88:8080/v1/AUTH_df58327d2b6c4e86b1df9b4671c5b54b", "publicURL": "http://172.16.0.88:8080/v1/AUTH_df58327d2b6c4e86b1df9b4671c5b54b"}], "type": "object-store", "name": "swift"}], "user": {"id": "4a4774f4374b4a928df9319009302a34", "roles": [{"name": "KeystoneAdmin", "id": "3"}], "name": "esmadmin"}}}
 from (pid=7488) http_log /usr/lib/python2.6/dist-packages/novaclient/client.py:79
2012-01-25 14:42:16,119 DEBUG novaclient.client [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Using Endpoint URL: http://172.16.146.139:35357/v2.0/tokens/8de5e217-9615-443c-8b7e-09cabf4b4af8/endpoints from (pid=7488) _fetch_endpoints_from_auth /usr/lib/python2.6/dist-packages/novaclient/client.py:185
2012-01-25 14:42:16,238 DEBUG novaclient.client [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] REQ: curl -i http://172.16.146.139:35357/v2.0/tokens/8de5e217-9615-443c-8b7e-09cabf4b4af8/endpoints -X GET -H "X-Auth_Token: d9164294-0e8f-4f01-94c6-eb4b460c95ee" -H "User-Agent: python-novaclient"
 from (pid=7488) http_log /usr/lib/python2.6/dist-packages/novaclient/client.py:76
2012-01-25 14:42:16,239 DEBUG novaclient.client [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] RESP:{'status': '200', 'content-length': '870', 'content-location': 'http://172.16.146.139:35357/v2.0/tokens/8de5e217-9615-443c-8b7e-09cabf4b4af8/endpoints', 'vary': 'X-Auth-Token', 'date': 'Wed, 25 Jan 2012 19:42:16 GMT', 'content-type': 'application/json; charset=UTF-8'} {"endpoints_links": [{"href": "http://172.16.146.139:35357/tokens/8de5e217-9615-443c-8b7e-09cabf4b4af8/endpoints?marker=3&limit=10", "rel": "next"}], "endpoints": [{"internalURL": "http://172.16.162.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5", "name": "nova", "adminURL": "http://172.16.162.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5", "region": "RegionOne", "tenantId": "9574193127d1439fb09d1c0ef3eb26d5", "type": "compute", "id": 2, "publicURL": "http://172.16.162.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5"}, {"internalURL": "http://172.16.163.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5", "name": "nova", "adminURL": "http://172.16.163.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5", "region": "zoneE", "tenantId": "9574193127d1439fb09d1c0ef3eb26d5", "type": "compute", "id": 3, "publicURL": "http://172.16.163.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5"}]}
 from (pid=7488) http_log /usr/lib/python2.6/dist-packages/novaclient/client.py:79
2012-01-25 14:42:16,737 DEBUG novaclient.client [-] REQ: curl -i http://172.16.163.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5/servers/detail -X GET -H "User-Agent: python-novaclient" -H "X-Auth-Token: 8de5e217-9615-443c-8b7e-09cabf4b4af8"
 from (pid=7488) http_log /usr/lib/python2.6/dist-packages/novaclient/client.py:76
2012-01-25 14:42:16,738 DEBUG novaclient.client [-] RESP:{'date': 'Wed, 25 Jan 2012 19:42:16 GMT', 'status': '200', 'content-length': '2397', 'content-type': 'application/json', 'content-location': u'http://172.16.163.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5/servers/detail'} {"servers": [{"OS-EXT-STS:task_state": null, "addresses": {}, "links": [{"href": "http://172.16.163.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5/servers/d40dc517-3eba-4eaa-bf2a-b15fac8ee2c4", "rel": "self"}, {"href": "http://172.16.163.5:8774/9574193127d1439fb09d1c0ef3eb26d5/servers/d40dc517-3eba-4eaa-bf2a-b15fac8ee2c4", "rel": "bookmark"}], "image": {"id": "b05ba8d5-9f71-40df-851f-709771da62a9", "links": [{"href": "http://172.16.163.5:8774/9574193127d1439fb09d1c0ef3eb26d5/images/b05ba8d5-9f71-40df-851f-709771da62a9", "rel": "bookmark"}]}, "OS-EXT-STS:vm_state": "active", "flavor": {"id": "1", "links": [{"href": "http://172.16.163.5:8774/9574193127d1439fb09d1c0ef3eb26d5/flavors/1", "rel": "bookmark"}]}, "id": "d40dc517-3eba-4eaa-bf2a-b15fac8ee2c4", "user_id": "dsmadmin", "RAX-DCF:diskConfig": "MANUAL", "accessIPv4": "", "accessIPv6": "", "progress": null, "OS-EXT-STS:power_state": 1, "config_drive": "", "status": "ACTIVE", "updated": "2012-01-25T19:41:15Z", "hostId": "64fe9962f6dc6c376f4e8f9eb6c871aaf0da3771d9a415f0bf60a770", "key_name": "", "name": "vmtest1", "created": "2012-01-25T19:40:57Z", "tenant_id": "9574193127d1439fb09d1c0ef3eb26d5", "metadata": {"My Server Name": "vmtest1"}}, {"OS-EXT-STS:task_state": null, "addresses": {}, "links": [{"href": "http://172.16.163.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5/servers/8f00967a-bb2a-4f24-bf5d-48b1f3c77388", "rel": "self"}, {"href": "http://172.16.163.5:8774/9574193127d1439fb09d1c0ef3eb26d5/servers/8f00967a-bb2a-4f24-bf5d-48b1f3c77388", "rel": "bookmark"}], "image": {"id": "b05ba8d5-9f71-40df-851f-709771da62a9", "links": [{"href": "http://172.16.163.5:8774/9574193127d1439fb09d1c0ef3eb26d5/images/b05ba8d5-9f71-40df-851f-709771da62a9", "rel": "bookmark"}]}, "OS-EXT-STS:vm_state": "active", "flavor": {"id": "1", "links": [{"href": "http://172.16.163.5:8774/9574193127d1439fb09d1c0ef3eb26d5/flavors/1", "rel": "bookmark"}]}, "id": "8f00967a-bb2a-4f24-bf5d-48b1f3c77388", "user_id": "dsmadmin", "RAX-DCF:diskConfig": "MANUAL", "accessIPv4": "", "accessIPv6": "", "progress": null, "OS-EXT-STS:power_state": 1, "config_drive": "", "status": "ACTIVE", "updated": "2012-01-25T19:38:31Z", "hostId": "028036137ae671554f81f2262ee84138a1f375d32b91550a34fdaca1", "key_name": "", "name": "vmtest1", "created": "2012-01-25T19:38:22Z", "tenant_id": "9574193127d1439fb09d1c0ef3eb26d5", "metadata": {"My Server Name": "vmtest1"}}]}
 from (pid=7488) http_log /usr/lib/python2.6/dist-packages/novaclient/client.py:79
2012-01-25 14:42:16,741 ERROR nova.api.openstack.v2 [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Caught error: 'uuid'
(nova.api.openstack.v2): TRACE: Traceback (most recent call last):
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/v2/__init__.py", line 62, in __call__
(nova.api.openstack.v2): TRACE: return req.get_response(self.application)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/request.py", line 1053, in get_response
(nova.api.openstack.v2): TRACE: application, catch_exc_info=False)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/request.py", line 1022, in call_application
(nova.api.openstack.v2): TRACE: app_iter = application(self.environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/local/lib/python2.6/dist-packages/keystone-1.0-py2.6.egg/keystone/middleware/auth_token.py", line 186, in __call__
(nova.api.openstack.v2): TRACE: return self._forward_request(env, start_response, proxy_headers)
(nova.api.openstack.v2): TRACE: File "/usr/local/lib/python2.6/dist-packages/keystone-1.0-py2.6.egg/keystone/middleware/auth_token.py", line 312, in _forward_request
(nova.api.openstack.v2): TRACE: return self.app(env, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
(nova.api.openstack.v2): TRACE: return resp(environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
(nova.api.openstack.v2): TRACE: return resp(environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 147, in __call__
(nova.api.openstack.v2): TRACE: resp = self.call_func(req, *args, **self.kwargs)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 208, in call_func
(nova.api.openstack.v2): TRACE: return self.func(req, *args, **kwargs)
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/wsgi.py", line 499, in __call__
(nova.api.openstack.v2): TRACE: response = req.get_response(self.application)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/request.py", line 1053, in get_response
(nova.api.openstack.v2): TRACE: application, catch_exc_info=False)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/request.py", line 1022, in call_application
(nova.api.openstack.v2): TRACE: app_iter = application(self.environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
(nova.api.openstack.v2): TRACE: return resp(environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/routes/middleware.py", line 131, in __call__
(nova.api.openstack.v2): TRACE: response = self.app(environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
(nova.api.openstack.v2): TRACE: return resp(environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 147, in __call__
(nova.api.openstack.v2): TRACE: resp = self.call_func(req, *args, **self.kwargs)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 208, in call_func
(nova.api.openstack.v2): TRACE: return self.func(req, *args, **kwargs)
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/wsgi.py", line 567, in __call__
(nova.api.openstack.v2): TRACE: action_result = self.dispatch(request, action, args)
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/wsgi.py", line 599, in dispatch
(nova.api.openstack.v2): TRACE: return controller_method(req=request, **action_args)
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/v2/extensions.py", line 166, in process
(nova.api.openstack.v2): TRACE: res = req.get_response(self.application)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/request.py", line 1053, in get_response
(nova.api.openstack.v2): TRACE: application, catch_exc_info=False)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/request.py", line 1022, in call_application
(nova.api.openstack.v2): TRACE: app_iter = application(self.environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
(nova.api.openstack.v2): TRACE: return resp(environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/routes/middleware.py", line 131, in __call__
(nova.api.openstack.v2): TRACE: response = self.app(environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
(nova.api.openstack.v2): TRACE: return resp(environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 147, in __call__
(nova.api.openstack.v2): TRACE: resp = self.call_func(req, *args, **self.kwargs)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 208, in call_func
(nova.api.openstack.v2): TRACE: return self.func(req, *args, **kwargs)
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/wsgi.py", line 567, in __call__
(nova.api.openstack.v2): TRACE: action_result = self.dispatch(request, action, args)
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/wsgi.py", line 599, in dispatch
(nova.api.openstack.v2): TRACE: return controller_method(req=request, **action_args)
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/v2/servers.py", line 75, in detail
(nova.api.openstack.v2): TRACE: servers = self._get_servers(req, is_detail=True)
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/v2/servers.py", line 150, in _get_servers
(nova.api.openstack.v2): TRACE: self._add_instance_faults(context, limited_list)
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/v2/servers.py", line 89, in _add_instance_faults
(nova.api.openstack.v2): TRACE: faults = self.compute_api.get_instance_faults(ctxt, instances)
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/compute/api.py", line 1607, in get_instance_faults
(nova.api.openstack.v2): TRACE: uuids = [instance['uuid'] for instance in instances]
(nova.api.openstack.v2): TRACE: KeyError: 'uuid'
(nova.api.openstack.v2): TRACE:

Question information

Language:
Chinese Edit question
Status:
Solved
For:
OpenStack Compute (nova) Edit question
Assignee:
No assignee Edit question
Solved by:
Alejandro Comisario
Solved:
2012-01-26
Last query:
2012-01-26
Last reply:
2012-01-26
Sandy Walsh (sandy-walsh) said : #1

Nice.

The Less Ram thing is to enforce Fill First (vs Spread First). But obviously each company is going to have their own strategies for how they want it to behave.

-S

________________________________________
From: <email address hidden> [<email address hidden>] on behalf of Alejandro Comisario [<email address hidden>]
Sent: Wednesday, January 25, 2012 5:01 PM
To: Sandy Walsh
Subject: [Question #185840]: Multi-Zone finally working on ESSEX but cant "nova list" (KeyError: 'uuid') + doubts

New question #185840 on OpenStack Compute (nova):
https://answers.launchpad.net/nova/+question/185840

Hey guys, we finally got MultiZone working on Essex with KVM as hypervisor (trunk version 2012.1-dev (2012.1-LOCALBRANCH:LOCALREVISION)) we have one Parent zone and one child zone (named "zoneE") all integrated with keystone ( nova, glance ) and we are able to spawn instances across both zones !
After making this work after a couple of days of work, configuration and debbuging we have one doubt, and one ERROR.
So, lets hope you can help us on both of them.

THE DOUBT:
This is deffinitely because we dont clearly understand the whole concept but, why is that "nova.scheduler.least_cost.weighted_sum" function chooses as prefered host the LESS RAM memory host ? this seems to choose just one host till is fully depleted, and then, chooses the other one ! that doesnt sound like a good way of balancing instances across the zones by default, so, since we didnt know how to fix that behavior, just added a "reverse=True" in the sorted functions, so problem "fixed".
The thing is, if there is (maybe trough nova.conf) a way of controlling this ( the sort order ), can any one shed some light on how to do it ?

THE ERROR / BUG:
At the moment that you spawn successfully an instance from the parent zone, to the child zone (the instance is successfully spawned and running on the child zone) the "nova list" (or curl to server/detail) to the parent zone just BROKE.
It apperars that when the parent zone calls the "server/detail" of the child zone, the json returned by the child, has the "uuid" field printed into the "id" field, so you can see on nova-api.log, having a keyerror "uuid" that breaks the call, you can check the pasteBin link below, or you can keep reading and watch the nova-api.log stack from here.

Waiting for some feedback !
Cheers!
Alejandro.

PASTEBIN LINK:
--------------
http://pastebin.com/VGt8A3HX

ENTIRE NOVA-API STACK TRACE:
----------------------------
2012-01-25 14:42:15,793 DEBUG nova [-] HTTP PERF: 0.10457 seconds to GET 172.16.146.139:35357 /v2.0/tokens/8de5e217-9615-443c-8b7e-09cabf4b4af8) from (pid=7488) getresponse /usr/local/lib/python2.6/dist-packages/keystone-1.0-py2.6.egg/keystone/common/bufferedhttp.py:99
2012-01-25 14:42:15,894 DEBUG nova [-] HTTP PERF: 0.10093 seconds to GET 172.16.146.139:35357 /v2.0/tokens/8de5e217-9615-443c-8b7e-09cabf4b4af8) from (pid=7488) getresponse /usr/local/lib/python2.6/dist-packages/keystone-1.0-py2.6.egg/keystone/common/bufferedhttp.py:99
2012-01-25 14:42:15,897 DEBUG routes.middleware [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Matched GET /9574193127d1439fb09d1c0ef3eb26d5/servers/detail from (pid=7488) __call__ /usr/lib/pymodules/python2.6/routes/middleware.py:100
2012-01-25 14:42:15,897 DEBUG routes.middleware [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Route path: '/:(project_id)/servers/:(id)', defaults: {'action': u'process', 'controller': <nova.api.openstack.v2.extensions.RequestExtensionResource object at 0x261b850>} from (pid=7488) __call__ /usr/lib/pymodules/python2.6/routes/middleware.py:102
2012-01-25 14:42:15,898 DEBUG routes.middleware [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Match dict: {'action': u'process', 'controller': <nova.api.openstack.v2.extensions.RequestExtensionResource object at 0x261b850>, 'project_id': u'9574193127d1439fb09d1c0ef3eb26d5', 'id': u'detail'} from (pid=7488) __call__ /usr/lib/pymodules/python2.6/routes/middleware.py:103
2012-01-25 14:42:15,899 INFO nova.api.openstack.wsgi [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] GET http://172.16.162.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5/servers/detail
2012-01-25 14:42:15,899 DEBUG nova.api.openstack.wsgi [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Unrecognized Content-Type provided in request from (pid=7488) deserialize_body /usr/lib/python2.6/dist-packages/nova/api/openstack/wsgi.py:257
2012-01-25 14:42:15,900 DEBUG routes.middleware [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Matched GET /9574193127d1439fb09d1c0ef3eb26d5/servers/detail from (pid=7488) __call__ /usr/lib/pymodules/python2.6/routes/middleware.py:100
2012-01-25 14:42:15,901 DEBUG routes.middleware [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Route path: '/{project_id}/servers/detail', defaults: {'action': u'detail', 'controller': <nova.api.openstack.wsgi.Resource object at 0x26d5a50>} from (pid=7488) __call__ /usr/lib/pymodules/python2.6/routes/middleware.py:102
2012-01-25 14:42:15,902 DEBUG routes.middleware [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Match dict: {'action': u'detail', 'controller': <nova.api.openstack.wsgi.Resource object at 0x26d5a50>, 'project_id': u'9574193127d1439fb09d1c0ef3eb26d5'} from (pid=7488) __call__ /usr/lib/pymodules/python2.6/routes/middleware.py:103
2012-01-25 14:42:15,902 INFO nova.api.openstack.wsgi [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] GET http://172.16.162.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5/servers/detail
2012-01-25 14:42:15,903 DEBUG nova.api.openstack.wsgi [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Unrecognized Content-Type provided in request from (pid=7488) deserialize_body /usr/lib/python2.6/dist-packages/nova/api/openstack/wsgi.py:257
2012-01-25 14:42:15,903 DEBUG nova.compute.api [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Searching by: {'deleted': False, 'local_zone_only': False} from (pid=7488) get_all /usr/lib/python2.6/dist-packages/nova/compute/api.py:937
2012-01-25 14:42:16,116 DEBUG novaclient.client [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] REQ: curl -i http://172.16.146.139:5000/v2.0/tokens -X POST -H "Content-Type: application/json" -H "User-Agent: python-novaclient"
 from (pid=7488) http_log /usr/lib/python2.6/dist-packages/novaclient/client.py:76
2012-01-25 14:42:16,116 DEBUG novaclient.client [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] REQ BODY: {"auth": {"passwordCredentials": {"username": "esmadmin", "password": "123456"}}}
 from (pid=7488) http_log /usr/lib/python2.6/dist-packages/novaclient/client.py:78
2012-01-25 14:42:16,117 DEBUG novaclient.client [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] RESP:{'date': 'Wed, 25 Jan 2012 19:42:16 GMT', 'vary': 'X-Auth-Token', 'content-length': '1583', 'status': '200', 'content-type': 'application/json; charset=UTF-8'} {"access": {"token": {"expires": "2012-01-26T15:42:15.970710", "tenants": [{"id": "df58327d2b6c4e86b1df9b4671c5b54b", "name": "esmadmin"}], "id": "d9164294-0e8f-4f01-94c6-eb4b460c95ee", "tenant": {"id": "df58327d2b6c4e86b1df9b4671c5b54b", "name": "esmadmin"}}, "serviceCatalog": [{"endpoints": [{"adminURL": "http://172.16.163.5:8774/v1.1/df58327d2b6c4e86b1df9b4671c5b54b", "region": "zoneE", "id": "5", "internalURL": "http://172.16.163.5:8774/v1.1/df58327d2b6c4e86b1df9b4671c5b54b", "publicURL": "http://172.16.163.5:8774/v1.1/df58327d2b6c4e86b1df9b4671c5b54b"}], "type": "compute", "name": "nova"}, {"endpoints": [{"adminURL": "http://172.16.147.123/v1.1/df58327d2b6c4e86b1df9b4671c5b54b", "region": "RegionOne", "id": "2", "internalURL": "http://172.16.147.123:9292/v1.1/df58327d2b6c4e86b1df9b4671c5b54b", "publicURL": "http://172.16.147.123/v1.1/df58327d2b6c4e86b1df9b4671c5b54b"}], "type": "image", "name": "glance"}, {"endpoints": [{"adminURL": "http://172.16.146.139:35357/v2.0", "region": "RegionOne", "id": "3", "internalURL": "http://172.16.146.139:5000/v2.0", "publicURL": "http://172.16.146.139:5000/v2.0"}], "type": "identity", "name": "keystone"}, {"endpoints": [{"adminURL": "http://172.16.0.88:8080/", "region": "RegionOne", "id": "4", "internalURL": "http://172.16.0.88:8080/v1/AUTH_df58327d2b6c4e86b1df9b4671c5b54b", "publicURL": "http://172.16.0.88:8080/v1/AUTH_df58327d2b6c4e86b1df9b4671c5b54b"}], "type": "object-store", "name": "swift"}], "user": {"id": "4a4774f4374b4a928df9319009302a34", "roles": [{"name": "KeystoneAdmin", "id": "3"}], "name": "esmadmin"}}}
 from (pid=7488) http_log /usr/lib/python2.6/dist-packages/novaclient/client.py:79
2012-01-25 14:42:16,119 DEBUG novaclient.client [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Using Endpoint URL: http://172.16.146.139:35357/v2.0/tokens/8de5e217-9615-443c-8b7e-09cabf4b4af8/endpoints from (pid=7488) _fetch_endpoints_from_auth /usr/lib/python2.6/dist-packages/novaclient/client.py:185
2012-01-25 14:42:16,238 DEBUG novaclient.client [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] REQ: curl -i http://172.16.146.139:35357/v2.0/tokens/8de5e217-9615-443c-8b7e-09cabf4b4af8/endpoints -X GET -H "X-Auth_Token: d9164294-0e8f-4f01-94c6-eb4b460c95ee" -H "User-Agent: python-novaclient"
 from (pid=7488) http_log /usr/lib/python2.6/dist-packages/novaclient/client.py:76
2012-01-25 14:42:16,239 DEBUG novaclient.client [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] RESP:{'status': '200', 'content-length': '870', 'content-location': 'http://172.16.146.139:35357/v2.0/tokens/8de5e217-9615-443c-8b7e-09cabf4b4af8/endpoints', 'vary': 'X-Auth-Token', 'date': 'Wed, 25 Jan 2012 19:42:16 GMT', 'content-type': 'application/json; charset=UTF-8'} {"endpoints_links": [{"href": "http://172.16.146.139:35357/tokens/8de5e217-9615-443c-8b7e-09cabf4b4af8/endpoints?marker=3&limit=10", "rel": "next"}], "endpoints": [{"internalURL": "http://172.16.162.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5", "name": "nova", "adminURL": "http://172.16.162.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5", "region": "RegionOne", "tenantId": "9574193127d1439fb09d1c0ef3eb26d5", "type": "compute", "id": 2, "publicURL": "http://172.16.162.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5"}, {"internalURL": "http://172.16.163.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5", "name": "nova", "adminURL": "http://172.16.163.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5", "region": "zoneE", "tenantId": "9574193127d1439fb09d1c0ef3eb26d5", "type": "compute", "id": 3, "publicURL": "http://172.16.163.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5"}]}
 from (pid=7488) http_log /usr/lib/python2.6/dist-packages/novaclient/client.py:79
2012-01-25 14:42:16,737 DEBUG novaclient.client [-] REQ: curl -i http://172.16.163.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5/servers/detail -X GET -H "User-Agent: python-novaclient" -H "X-Auth-Token: 8de5e217-9615-443c-8b7e-09cabf4b4af8"
 from (pid=7488) http_log /usr/lib/python2.6/dist-packages/novaclient/client.py:76
2012-01-25 14:42:16,738 DEBUG novaclient.client [-] RESP:{'date': 'Wed, 25 Jan 2012 19:42:16 GMT', 'status': '200', 'content-length': '2397', 'content-type': 'application/json', 'content-location': u'http://172.16.163.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5/servers/detail'} {"servers": [{"OS-EXT-STS:task_state": null, "addresses": {}, "links": [{"href": "http://172.16.163.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5/servers/d40dc517-3eba-4eaa-bf2a-b15fac8ee2c4", "rel": "self"}, {"href": "http://172.16.163.5:8774/9574193127d1439fb09d1c0ef3eb26d5/servers/d40dc517-3eba-4eaa-bf2a-b15fac8ee2c4", "rel": "bookmark"}], "image": {"id": "b05ba8d5-9f71-40df-851f-709771da62a9", "links": [{"href": "http://172.16.163.5:8774/9574193127d1439fb09d1c0ef3eb26d5/images/b05ba8d5-9f71-40df-851f-709771da62a9", "rel": "bookmark"}]}, "OS-EXT-STS:vm_state": "active", "flavor": {"id": "1", "links": [{"href": "http://172.16.163.5:8774/9574193127d1439fb09d1c0ef3eb26d5/flavors/1", "rel": "bookmark"}]}, "id": "d40dc517-3eba-4eaa-bf2a-b15fac8ee2c4", "user_id": "dsmadmin", "RAX-DCF:diskConfig": "MANUAL", "accessIPv4": "", "accessIPv6": "", "progress": null, "OS-EXT-STS:power_state": 1, "config_drive": "", "status": "ACTIVE", "updated": "2012-01-25T19:41:15Z", "hostId": "64fe9962f6dc6c376f4e8f9eb6c871aaf0da3771d9a415f0bf60a770", "key_name": "", "name": "vmtest1", "created": "2012-01-25T19:40:57Z", "tenant_id": "9574193127d1439fb09d1c0ef3eb26d5", "metadata": {"My Server Name": "vmtest1"}}, {"OS-EXT-STS:task_state": null, "addresses": {}, "links": [{"href": "http://172.16.163.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5/servers/8f00967a-bb2a-4f24-bf5d-48b1f3c77388", "rel": "self"}, {"href": "http://172.16.163.5:8774/9574193127d1439fb09d1c0ef3eb26d5/servers/8f00967a-bb2a-4f24-bf5d-48b1f3c77388", "rel": "bookmark"}], "image": {"id": "b05ba8d5-9f71-40df-851f-709771da62a9", "links": [{"href": "http://172.16.163.5:8774/9574193127d1439fb09d1c0ef3eb26d5/images/b05ba8d5-9f71-40df-851f-709771da62a9", "rel": "bookmark"}]}, "OS-EXT-STS:vm_state": "active", "flavor": {"id": "1", "links": [{"href": "http://172.16.163.5:8774/9574193127d1439fb09d1c0ef3eb26d5/flavors/1", "rel": "bookmark"}]}, "id": "8f00967a-bb2a-4f24-bf5d-48b1f3c77388", "user_id": "dsmadmin", "RAX-DCF:diskConfig": "MANUAL", "accessIPv4": "", "accessIPv6": "", "progress": null, "OS-EXT-STS:power_state": 1, "config_drive": "", "status": "ACTIVE", "updated": "2012-01-25T19:38:31Z", "hostId": "028036137ae671554f81f2262ee84138a1f375d32b91550a34fdaca1", "key_name": "", "name": "vmtest1", "created": "2012-01-25T19:38:22Z", "tenant_id": "9574193127d1439fb09d1c0ef3eb26d5", "metadata": {"My Server Name": "vmtest1"}}]}
 from (pid=7488) http_log /usr/lib/python2.6/dist-packages/novaclient/client.py:79
2012-01-25 14:42:16,741 ERROR nova.api.openstack.v2 [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Caught error: 'uuid'
(nova.api.openstack.v2): TRACE: Traceback (most recent call last):
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/v2/__init__.py", line 62, in __call__
(nova.api.openstack.v2): TRACE: return req.get_response(self.application)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/request.py", line 1053, in get_response
(nova.api.openstack.v2): TRACE: application, catch_exc_info=False)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/request.py", line 1022, in call_application
(nova.api.openstack.v2): TRACE: app_iter = application(self.environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/local/lib/python2.6/dist-packages/keystone-1.0-py2.6.egg/keystone/middleware/auth_token.py", line 186, in __call__
(nova.api.openstack.v2): TRACE: return self._forward_request(env, start_response, proxy_headers)
(nova.api.openstack.v2): TRACE: File "/usr/local/lib/python2.6/dist-packages/keystone-1.0-py2.6.egg/keystone/middleware/auth_token.py", line 312, in _forward_request
(nova.api.openstack.v2): TRACE: return self.app(env, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
(nova.api.openstack.v2): TRACE: return resp(environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
(nova.api.openstack.v2): TRACE: return resp(environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 147, in __call__
(nova.api.openstack.v2): TRACE: resp = self.call_func(req, *args, **self.kwargs)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 208, in call_func
(nova.api.openstack.v2): TRACE: return self.func(req, *args, **kwargs)
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/wsgi.py", line 499, in __call__
(nova.api.openstack.v2): TRACE: response = req.get_response(self.application)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/request.py", line 1053, in get_response
(nova.api.openstack.v2): TRACE: application, catch_exc_info=False)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/request.py", line 1022, in call_application
(nova.api.openstack.v2): TRACE: app_iter = application(self.environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
(nova.api.openstack.v2): TRACE: return resp(environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/routes/middleware.py", line 131, in __call__
(nova.api.openstack.v2): TRACE: response = self.app(environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
(nova.api.openstack.v2): TRACE: return resp(environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 147, in __call__
(nova.api.openstack.v2): TRACE: resp = self.call_func(req, *args, **self.kwargs)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 208, in call_func
(nova.api.openstack.v2): TRACE: return self.func(req, *args, **kwargs)
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/wsgi.py", line 567, in __call__
(nova.api.openstack.v2): TRACE: action_result = self.dispatch(request, action, args)
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/wsgi.py", line 599, in dispatch
(nova.api.openstack.v2): TRACE: return controller_method(req=request, **action_args)
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/v2/extensions.py", line 166, in process
(nova.api.openstack.v2): TRACE: res = req.get_response(self.application)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/request.py", line 1053, in get_response
(nova.api.openstack.v2): TRACE: application, catch_exc_info=False)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/request.py", line 1022, in call_application
(nova.api.openstack.v2): TRACE: app_iter = application(self.environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
(nova.api.openstack.v2): TRACE: return resp(environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/routes/middleware.py", line 131, in __call__
(nova.api.openstack.v2): TRACE: response = self.app(environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
(nova.api.openstack.v2): TRACE: return resp(environ, start_response)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 147, in __call__
(nova.api.openstack.v2): TRACE: resp = self.call_func(req, *args, **self.kwargs)
(nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 208, in call_func
(nova.api.openstack.v2): TRACE: return self.func(req, *args, **kwargs)
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/wsgi.py", line 567, in __call__
(nova.api.openstack.v2): TRACE: action_result = self.dispatch(request, action, args)
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/wsgi.py", line 599, in dispatch
(nova.api.openstack.v2): TRACE: return controller_method(req=request, **action_args)
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/v2/servers.py", line 75, in detail
(nova.api.openstack.v2): TRACE: servers = self._get_servers(req, is_detail=True)
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/v2/servers.py", line 150, in _get_servers
(nova.api.openstack.v2): TRACE: self._add_instance_faults(context, limited_list)
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/v2/servers.py", line 89, in _add_instance_faults
(nova.api.openstack.v2): TRACE: faults = self.compute_api.get_instance_faults(ctxt, instances)
(nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/compute/api.py", line 1607, in get_instance_faults
(nova.api.openstack.v2): TRACE: uuids = [instance['uuid'] for instance in instances]
(nova.api.openstack.v2): TRACE: KeyError: 'uuid'
(nova.api.openstack.v2): TRACE:

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Vish Ishaya (vishvananda) said : #2

Nice work!

The second definitely seems like a bug. The first I suspect is a bug as well, but I will let sandy comment on that one. FYI, the zones stuff is being reworked by Chris Behrens to allow for more efficient calls. He's doing his best to not break the existing zones code, but this will hopefully be much easier once his code arrives.

Vish

On Jan 25, 2012, at 1:01 PM, Alejandro Comisario wrote:

> New question #185840 on OpenStack Compute (nova):
> https://answers.launchpad.net/nova/+question/185840
>
> Hey guys, we finally got MultiZone working on Essex with KVM as hypervisor (trunk version 2012.1-dev (2012.1-LOCALBRANCH:LOCALREVISION)) we have one Parent zone and one child zone (named "zoneE") all integrated with keystone ( nova, glance ) and we are able to spawn instances across both zones !
> After making this work after a couple of days of work, configuration and debbuging we have one doubt, and one ERROR.
> So, lets hope you can help us on both of them.
>
> THE DOUBT:
> This is deffinitely because we dont clearly understand the whole concept but, why is that "nova.scheduler.least_cost.weighted_sum" function chooses as prefered host the LESS RAM memory host ? this seems to choose just one host till is fully depleted, and then, chooses the other one ! that doesnt sound like a good way of balancing instances across the zones by default, so, since we didnt know how to fix that behavior, just added a "reverse=True" in the sorted functions, so problem "fixed".
> The thing is, if there is (maybe trough nova.conf) a way of controlling this ( the sort order ), can any one shed some light on how to do it ?
>
> THE ERROR / BUG:
> At the moment that you spawn successfully an instance from the parent zone, to the child zone (the instance is successfully spawned and running on the child zone) the "nova list" (or curl to server/detail) to the parent zone just BROKE.
> It apperars that when the parent zone calls the "server/detail" of the child zone, the json returned by the child, has the "uuid" field printed into the "id" field, so you can see on nova-api.log, having a keyerror "uuid" that breaks the call, you can check the pasteBin link below, or you can keep reading and watch the nova-api.log stack from here.
>
> Waiting for some feedback !
> Cheers!
> Alejandro.
>
> PASTEBIN LINK:
> --------------
> http://pastebin.com/VGt8A3HX
>
> ENTIRE NOVA-API STACK TRACE:
> ----------------------------
> 2012-01-25 14:42:15,793 DEBUG nova [-] HTTP PERF: 0.10457 seconds to GET 172.16.146.139:35357 /v2.0/tokens/8de5e217-9615-443c-8b7e-09cabf4b4af8) from (pid=7488) getresponse /usr/local/lib/python2.6/dist-packages/keystone-1.0-py2.6.egg/keystone/common/bufferedhttp.py:99
> 2012-01-25 14:42:15,894 DEBUG nova [-] HTTP PERF: 0.10093 seconds to GET 172.16.146.139:35357 /v2.0/tokens/8de5e217-9615-443c-8b7e-09cabf4b4af8) from (pid=7488) getresponse /usr/local/lib/python2.6/dist-packages/keystone-1.0-py2.6.egg/keystone/common/bufferedhttp.py:99
> 2012-01-25 14:42:15,897 DEBUG routes.middleware [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Matched GET /9574193127d1439fb09d1c0ef3eb26d5/servers/detail from (pid=7488) __call__ /usr/lib/pymodules/python2.6/routes/middleware.py:100
> 2012-01-25 14:42:15,897 DEBUG routes.middleware [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Route path: '/:(project_id)/servers/:(id)', defaults: {'action': u'process', 'controller': <nova.api.openstack.v2.extensions.RequestExtensionResource object at 0x261b850>} from (pid=7488) __call__ /usr/lib/pymodules/python2.6/routes/middleware.py:102
> 2012-01-25 14:42:15,898 DEBUG routes.middleware [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Match dict: {'action': u'process', 'controller': <nova.api.openstack.v2.extensions.RequestExtensionResource object at 0x261b850>, 'project_id': u'9574193127d1439fb09d1c0ef3eb26d5', 'id': u'detail'} from (pid=7488) __call__ /usr/lib/pymodules/python2.6/routes/middleware.py:103
> 2012-01-25 14:42:15,899 INFO nova.api.openstack.wsgi [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] GET http://172.16.162.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5/servers/detail
> 2012-01-25 14:42:15,899 DEBUG nova.api.openstack.wsgi [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Unrecognized Content-Type provided in request from (pid=7488) deserialize_body /usr/lib/python2.6/dist-packages/nova/api/openstack/wsgi.py:257
> 2012-01-25 14:42:15,900 DEBUG routes.middleware [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Matched GET /9574193127d1439fb09d1c0ef3eb26d5/servers/detail from (pid=7488) __call__ /usr/lib/pymodules/python2.6/routes/middleware.py:100
> 2012-01-25 14:42:15,901 DEBUG routes.middleware [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Route path: '/{project_id}/servers/detail', defaults: {'action': u'detail', 'controller': <nova.api.openstack.wsgi.Resource object at 0x26d5a50>} from (pid=7488) __call__ /usr/lib/pymodules/python2.6/routes/middleware.py:102
> 2012-01-25 14:42:15,902 DEBUG routes.middleware [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Match dict: {'action': u'detail', 'controller': <nova.api.openstack.wsgi.Resource object at 0x26d5a50>, 'project_id': u'9574193127d1439fb09d1c0ef3eb26d5'} from (pid=7488) __call__ /usr/lib/pymodules/python2.6/routes/middleware.py:103
> 2012-01-25 14:42:15,902 INFO nova.api.openstack.wsgi [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] GET http://172.16.162.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5/servers/detail
> 2012-01-25 14:42:15,903 DEBUG nova.api.openstack.wsgi [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Unrecognized Content-Type provided in request from (pid=7488) deserialize_body /usr/lib/python2.6/dist-packages/nova/api/openstack/wsgi.py:257
> 2012-01-25 14:42:15,903 DEBUG nova.compute.api [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Searching by: {'deleted': False, 'local_zone_only': False} from (pid=7488) get_all /usr/lib/python2.6/dist-packages/nova/compute/api.py:937
> 2012-01-25 14:42:16,116 DEBUG novaclient.client [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] REQ: curl -i http://172.16.146.139:5000/v2.0/tokens -X POST -H "Content-Type: application/json" -H "User-Agent: python-novaclient"
> from (pid=7488) http_log /usr/lib/python2.6/dist-packages/novaclient/client.py:76
> 2012-01-25 14:42:16,116 DEBUG novaclient.client [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] REQ BODY: {"auth": {"passwordCredentials": {"username": "esmadmin", "password": "123456"}}}
> from (pid=7488) http_log /usr/lib/python2.6/dist-packages/novaclient/client.py:78
> 2012-01-25 14:42:16,117 DEBUG novaclient.client [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] RESP:{'date': 'Wed, 25 Jan 2012 19:42:16 GMT', 'vary': 'X-Auth-Token', 'content-length': '1583', 'status': '200', 'content-type': 'application/json; charset=UTF-8'} {"access": {"token": {"expires": "2012-01-26T15:42:15.970710", "tenants": [{"id": "df58327d2b6c4e86b1df9b4671c5b54b", "name": "esmadmin"}], "id": "d9164294-0e8f-4f01-94c6-eb4b460c95ee", "tenant": {"id": "df58327d2b6c4e86b1df9b4671c5b54b", "name": "esmadmin"}}, "serviceCatalog": [{"endpoints": [{"adminURL": "http://172.16.163.5:8774/v1.1/df58327d2b6c4e86b1df9b4671c5b54b", "region": "zoneE", "id": "5", "internalURL": "http://172.16.163.5:8774/v1.1/df58327d2b6c4e86b1df9b4671c5b54b", "publicURL": "http://172.16.163.5:8774/v1.1/df58327d2b6c4e86b1df9b4671c5b54b"}], "type": "compute", "name": "nova"}, {"endpoints": [{"adminURL": "http://172.16.147.123/v1.1/df58327d2b6c4e86b1df9b4671c5b54b", "region": "RegionOne", "id": "2", "internalURL": "http://172.16.147.123:9292/v1.1/df58327d2b6c4e86b1df9b4671c5b54b", "publicURL": "http://172.16.147.123/v1.1/df58327d2b6c4e86b1df9b4671c5b54b"}], "type": "image", "name": "glance"}, {"endpoints": [{"adminURL": "http://172.16.146.139:35357/v2.0", "region": "RegionOne", "id": "3", "internalURL": "http://172.16.146.139:5000/v2.0", "publicURL": "http://172.16.146.139:5000/v2.0"}], "type": "identity", "name": "keystone"}, {"endpoints": [{"adminURL": "http://172.16.0.88:8080/", "region": "RegionOne", "id": "4", "internalURL": "http://172.16.0.88:8080/v1/AUTH_df58327d2b6c4e86b1df9b4671c5b54b", "publicURL": "http://172.16.0.88:8080/v1/AUTH_df58327d2b6c4e86b1df9b4671c5b54b"}], "type": "object-store", "name": "swift"}], "user": {"id": "4a4774f4374b4a928df9319009302a34", "roles": [{"name": "KeystoneAdmin", "id": "3"}], "name": "esmadmin"}}}
> from (pid=7488) http_log /usr/lib/python2.6/dist-packages/novaclient/client.py:79
> 2012-01-25 14:42:16,119 DEBUG novaclient.client [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Using Endpoint URL: http://172.16.146.139:35357/v2.0/tokens/8de5e217-9615-443c-8b7e-09cabf4b4af8/endpoints from (pid=7488) _fetch_endpoints_from_auth /usr/lib/python2.6/dist-packages/novaclient/client.py:185
> 2012-01-25 14:42:16,238 DEBUG novaclient.client [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] REQ: curl -i http://172.16.146.139:35357/v2.0/tokens/8de5e217-9615-443c-8b7e-09cabf4b4af8/endpoints -X GET -H "X-Auth_Token: d9164294-0e8f-4f01-94c6-eb4b460c95ee" -H "User-Agent: python-novaclient"
> from (pid=7488) http_log /usr/lib/python2.6/dist-packages/novaclient/client.py:76
> 2012-01-25 14:42:16,239 DEBUG novaclient.client [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] RESP:{'status': '200', 'content-length': '870', 'content-location': 'http://172.16.146.139:35357/v2.0/tokens/8de5e217-9615-443c-8b7e-09cabf4b4af8/endpoints', 'vary': 'X-Auth-Token', 'date': 'Wed, 25 Jan 2012 19:42:16 GMT', 'content-type': 'application/json; charset=UTF-8'} {"endpoints_links": [{"href": "http://172.16.146.139:35357/tokens/8de5e217-9615-443c-8b7e-09cabf4b4af8/endpoints?marker=3&limit=10", "rel": "next"}], "endpoints": [{"internalURL": "http://172.16.162.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5", "name": "nova", "adminURL": "http://172.16.162.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5", "region": "RegionOne", "tenantId": "9574193127d1439fb09d1c0ef3eb26d5", "type": "compute", "id": 2, "publicURL": "http://172.16.162.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5"}, {"internalURL": "http://172.16.163.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5", "name": "nova", "adminURL": "http://172.16.163.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5", "region": "zoneE", "tenantId": "9574193127d1439fb09d1c0ef3eb26d5", "type": "compute", "id": 3, "publicURL": "http://172.16.163.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5"}]}
> from (pid=7488) http_log /usr/lib/python2.6/dist-packages/novaclient/client.py:79
> 2012-01-25 14:42:16,737 DEBUG novaclient.client [-] REQ: curl -i http://172.16.163.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5/servers/detail -X GET -H "User-Agent: python-novaclient" -H "X-Auth-Token: 8de5e217-9615-443c-8b7e-09cabf4b4af8"
> from (pid=7488) http_log /usr/lib/python2.6/dist-packages/novaclient/client.py:76
> 2012-01-25 14:42:16,738 DEBUG novaclient.client [-] RESP:{'date': 'Wed, 25 Jan 2012 19:42:16 GMT', 'status': '200', 'content-length': '2397', 'content-type': 'application/json', 'content-location': u'http://172.16.163.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5/servers/detail'} {"servers": [{"OS-EXT-STS:task_state": null, "addresses": {}, "links": [{"href": "http://172.16.163.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5/servers/d40dc517-3eba-4eaa-bf2a-b15fac8ee2c4", "rel": "self"}, {"href": "http://172.16.163.5:8774/9574193127d1439fb09d1c0ef3eb26d5/servers/d40dc517-3eba-4eaa-bf2a-b15fac8ee2c4", "rel": "bookmark"}], "image": {"id": "b05ba8d5-9f71-40df-851f-709771da62a9", "links": [{"href": "http://172.16.163.5:8774/9574193127d1439fb09d1c0ef3eb26d5/images/b05ba8d5-9f71-40df-851f-709771da62a9", "rel": "bookmark"}]}, "OS-EXT-STS:vm_state": "active", "flavor": {"id": "1", "links": [{"href": "http://172.16.163.5:8774/9574193127d1439fb09d1c0ef3eb26d5/flavors/1", "rel": "bookmark"}]}, "id": "d40dc517-3eba-4eaa-bf2a-b15fac8ee2c4", "user_id": "dsmadmin", "RAX-DCF:diskConfig": "MANUAL", "accessIPv4": "", "accessIPv6": "", "progress": null, "OS-EXT-STS:power_state": 1, "config_drive": "", "status": "ACTIVE", "updated": "2012-01-25T19:41:15Z", "hostId": "64fe9962f6dc6c376f4e8f9eb6c871aaf0da3771d9a415f0bf60a770", "key_name": "", "name": "vmtest1", "created": "2012-01-25T19:40:57Z", "tenant_id": "9574193127d1439fb09d1c0ef3eb26d5", "metadata": {"My Server Name": "vmtest1"}}, {"OS-EXT-STS:task_state": null, "addresses": {}, "links": [{"href": "http://172.16.163.5:8774/v1.1/9574193127d1439fb09d1c0ef3eb26d5/servers/8f00967a-bb2a-4f24-bf5d-48b1f3c77388", "rel": "self"}, {"href": "http://172.16.163.5:8774/9574193127d1439fb09d1c0ef3eb26d5/servers/8f00967a-bb2a-4f24-bf5d-48b1f3c77388", "rel": "bookmark"}], "image": {"id": "b05ba8d5-9f71-40df-851f-709771da62a9", "links": [{"href": "http://172.16.163.5:8774/9574193127d1439fb09d1c0ef3eb26d5/images/b05ba8d5-9f71-40df-851f-709771da62a9", "rel": "bookmark"}]}, "OS-EXT-STS:vm_state": "active", "flavor": {"id": "1", "links": [{"href": "http://172.16.163.5:8774/9574193127d1439fb09d1c0ef3eb26d5/flavors/1", "rel": "bookmark"}]}, "id": "8f00967a-bb2a-4f24-bf5d-48b1f3c77388", "user_id": "dsmadmin", "RAX-DCF:diskConfig": "MANUAL", "accessIPv4": "", "accessIPv6": "", "progress": null, "OS-EXT-STS:power_state": 1, "config_drive": "", "status": "ACTIVE", "updated": "2012-01-25T19:38:31Z", "hostId": "028036137ae671554f81f2262ee84138a1f375d32b91550a34fdaca1", "key_name": "", "name": "vmtest1", "created": "2012-01-25T19:38:22Z", "tenant_id": "9574193127d1439fb09d1c0ef3eb26d5", "metadata": {"My Server Name": "vmtest1"}}]}
> from (pid=7488) http_log /usr/lib/python2.6/dist-packages/novaclient/client.py:79
> 2012-01-25 14:42:16,741 ERROR nova.api.openstack.v2 [2d3d5746-6718-4d2f-bb7d-3587cff052db dsmadmin 9574193127d1439fb09d1c0ef3eb26d5] Caught error: 'uuid'
> (nova.api.openstack.v2): TRACE: Traceback (most recent call last):
> (nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/v2/__init__.py", line 62, in __call__
> (nova.api.openstack.v2): TRACE: return req.get_response(self.application)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/request.py", line 1053, in get_response
> (nova.api.openstack.v2): TRACE: application, catch_exc_info=False)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/request.py", line 1022, in call_application
> (nova.api.openstack.v2): TRACE: app_iter = application(self.environ, start_response)
> (nova.api.openstack.v2): TRACE: File "/usr/local/lib/python2.6/dist-packages/keystone-1.0-py2.6.egg/keystone/middleware/auth_token.py", line 186, in __call__
> (nova.api.openstack.v2): TRACE: return self._forward_request(env, start_response, proxy_headers)
> (nova.api.openstack.v2): TRACE: File "/usr/local/lib/python2.6/dist-packages/keystone-1.0-py2.6.egg/keystone/middleware/auth_token.py", line 312, in _forward_request
> (nova.api.openstack.v2): TRACE: return self.app(env, start_response)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
> (nova.api.openstack.v2): TRACE: return resp(environ, start_response)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
> (nova.api.openstack.v2): TRACE: return resp(environ, start_response)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 147, in __call__
> (nova.api.openstack.v2): TRACE: resp = self.call_func(req, *args, **self.kwargs)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 208, in call_func
> (nova.api.openstack.v2): TRACE: return self.func(req, *args, **kwargs)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/wsgi.py", line 499, in __call__
> (nova.api.openstack.v2): TRACE: response = req.get_response(self.application)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/request.py", line 1053, in get_response
> (nova.api.openstack.v2): TRACE: application, catch_exc_info=False)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/request.py", line 1022, in call_application
> (nova.api.openstack.v2): TRACE: app_iter = application(self.environ, start_response)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
> (nova.api.openstack.v2): TRACE: return resp(environ, start_response)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/routes/middleware.py", line 131, in __call__
> (nova.api.openstack.v2): TRACE: response = self.app(environ, start_response)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
> (nova.api.openstack.v2): TRACE: return resp(environ, start_response)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 147, in __call__
> (nova.api.openstack.v2): TRACE: resp = self.call_func(req, *args, **self.kwargs)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 208, in call_func
> (nova.api.openstack.v2): TRACE: return self.func(req, *args, **kwargs)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/wsgi.py", line 567, in __call__
> (nova.api.openstack.v2): TRACE: action_result = self.dispatch(request, action, args)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/wsgi.py", line 599, in dispatch
> (nova.api.openstack.v2): TRACE: return controller_method(req=request, **action_args)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/v2/extensions.py", line 166, in process
> (nova.api.openstack.v2): TRACE: res = req.get_response(self.application)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/request.py", line 1053, in get_response
> (nova.api.openstack.v2): TRACE: application, catch_exc_info=False)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/request.py", line 1022, in call_application
> (nova.api.openstack.v2): TRACE: app_iter = application(self.environ, start_response)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
> (nova.api.openstack.v2): TRACE: return resp(environ, start_response)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/routes/middleware.py", line 131, in __call__
> (nova.api.openstack.v2): TRACE: response = self.app(environ, start_response)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
> (nova.api.openstack.v2): TRACE: return resp(environ, start_response)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 147, in __call__
> (nova.api.openstack.v2): TRACE: resp = self.call_func(req, *args, **self.kwargs)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 208, in call_func
> (nova.api.openstack.v2): TRACE: return self.func(req, *args, **kwargs)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/wsgi.py", line 567, in __call__
> (nova.api.openstack.v2): TRACE: action_result = self.dispatch(request, action, args)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/wsgi.py", line 599, in dispatch
> (nova.api.openstack.v2): TRACE: return controller_method(req=request, **action_args)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/v2/servers.py", line 75, in detail
> (nova.api.openstack.v2): TRACE: servers = self._get_servers(req, is_detail=True)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/v2/servers.py", line 150, in _get_servers
> (nova.api.openstack.v2): TRACE: self._add_instance_faults(context, limited_list)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/api/openstack/v2/servers.py", line 89, in _add_instance_faults
> (nova.api.openstack.v2): TRACE: faults = self.compute_api.get_instance_faults(ctxt, instances)
> (nova.api.openstack.v2): TRACE: File "/usr/lib/python2.6/dist-packages/nova/compute/api.py", line 1607, in get_instance_faults
> (nova.api.openstack.v2): TRACE: uuids = [instance['uuid'] for instance in instances]
> (nova.api.openstack.v2): TRACE: KeyError: 'uuid'
> (nova.api.openstack.v2): TRACE:
>
>
> --
> You received this question notification because you are a member of Nova
> Core, which is an answer contact for OpenStack Compute (nova).

Sandy, Vish !

Thanks for the replies ! let me get to the relevant points.

#1 I totally agree with you guys, the policy for spawning instances maybe very special of each company strategy, but, as you can pass from "Fill First" to "Spread First" just adding a "reverse=True" on nova.scheduler.least_cost.weighted_sum" and "nova.scheduler.distributed_scheduler._schedule" maybe its a harmless addition to manipulate (since we are going to have a lot of zones across datacenters, and many different departments are going to create many instances to load-balance their applications, we really preffer SpreadFirst to make sure hight availability of the pools )

#2 As we are going to test essex-3, i would like if you can tell me if the zones code from Chris Behrens is going to be added on Final Essex / Milestone 4, so we can keep testing other features, or you preffer us to load this as a bug to be fixed since maybe the code that broke is not going to have major changes.

Kindest regards !

Sandy Walsh (sandy-walsh) said : #4

Zones is going through some radical changes currently.

Specifically, we're planning to use direct Rabbit-to-Rabbit communication between trusted Zones to avoid the complication of changes to OS API, Keystone and novaclient.

To the user deploying Nova not much will change, there may be a new service to deploy (a Zones service), but that would be all. To a developer, the code in OS API will greatly simplify and the Distributed Scheduler will be able to focus on single zone scheduling (vs doing both zone and host scheduling as it does today).

We'll have more details soon, but we aren't planning on introducing the new stuff until we have a working replacement in place. The default Essex Scheduler now will largely be the same and the filters/weight functions will still carry forward, so any investments there won't be lost.

Stay tuned, we're hoping to get all this in a new blueprint soon.

Hope it helps,
Sandy

________________________________________
From: <email address hidden> [<email address hidden>] on behalf of Alejandro Comisario [<email address hidden>]
Sent: Thursday, January 26, 2012 8:50 AM
To: Sandy Walsh
Subject: Re: [Question #185840]: Multi-Zone finally working on ESSEX but cant "nova list" (KeyError: 'uuid') + doubts

Question #185840 on OpenStack Compute (nova) changed:
https://answers.launchpad.net/nova/+question/185840

    Status: Answered => Open

Alejandro Comisario is still having a problem:
Sandy, Vish !

Thanks for the replies ! let me get to the relevant points.

#1 I totally agree with you guys, the policy for spawning instances
maybe very special of each company strategy, but, as you can pass from
"Fill First" to "Spread First" just adding a "reverse=True" on
nova.scheduler.least_cost.weighted_sum" and
"nova.scheduler.distributed_scheduler._schedule" maybe its a harmless
addition to manipulate (since we are going to have a lot of zones across
datacenters, and many different departments are going to create many
instances to load-balance their applications, we really preffer
SpreadFirst to make sure hight availability of the pools )

#2 As we are going to test essex-3, i would like if you can tell me if
the zones code from Chris Behrens is going to be added on Final Essex /
Milestone 4, so we can keep testing other features, or you preffer us to
load this as a bug to be fixed since maybe the code that broke is not
going to have major changes.

Kindest regards !

--
You received this question notification because you are a member of Nova
Core, which is an answer contact for OpenStack Compute (nova).

Perfect ! we are gonna stop then looking for bugs, and wait for the commit of zones implementation !

Thanks Sandy.

Hi,

I'm trying to setup a multi-zone nova setup but have some doubts regarding the same. I've already worked with multi-node(computes) type of setup and was quite successful with it. May i know the configurations that need to be done/changed to setup a multi-zone setup.

I'm trying to setup multi-zone setup on following topology:
    - 2 nova zones(All components of nova)
    - 1 Parent Node(API+SCHEDULER+MYSQL+RABBITMQ)

I'm not sure about how can i add the child zones(2 nova zones) to my parent zone.

Appreciate any help on this...!

John Garbutt (johngarbutt) said : #7

Zones worked with Diablo, to some extent.

But the Zone code was pulled from the final version of Essex.

Zones are being replaced by cells in Folsom.

Take a look at the summit material:
http://comstud.com/FolsomCells.pdf
http://etherpad.openstack.org/FolsomComputeCells

I hope that helps.

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From: question185840 [mailto:<email address hidden>]
Sent: Friday, May 19, 2017 4:24 PM
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Subject: ...but you won't.

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From: question185840 [mailto:<email address hidden>]
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From: question185840 [mailto:<email address hidden>]
Sent: Wednesday, August 09, 2017 4:09 AM
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From: question185840 [mailto:<email address hidden>]
Sent: Wednesday, September 13, 2017 10:12 AM
To: <email address hidden>
Subject: Sent you a request.

CPU/mobo are a paired set in most cases, and are going to be the most important for livestreaming purposes. Video card is pretty far down the list, as you can turn down graphical options in the game to compensate for that, if it's actually an issue.

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From: question185840 [mailto:<email address hidden>]
Sent: Wednesday, October 18, 2017 9:35 PM
To: <email address hidden>
Subject: ? East?

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From: question185840 [mailto:<email address hidden>]
Sent: Wednesday, November 29, 2017 6:57 PM
To: <email address hidden>
Subject: Fair enough

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x86brandon (x86brandon) said : #34

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