Matt, I followed your advice and reinstalled nova-compute on domU nodes. This solved the problem.
Thanks a lot, Giuseppe 2011/9/21 Giuseppe Civitella <[email protected]>: > Matt, > > a did check the xenapi connection to dom0 as described here > http://wiki.openstack.org/XenServerDevelopment -> Test XenAPI > and it worked. > Anyway I'm able to directly deploy vms on the node that receives the VHD. > Said so, is there somthing alse I should check? > > Thanks > Giuseppe > > > On Wednesday 21 September 2011 00:05:19 Matt Dietz wrote: >> Giuseppe, >> >> I'm not sure that's the error that's causing the problem, but it seems >> indicative of a larger issue: namely that the other compute node (the one >> that received the VHD in the migration) perhaps cannot talk to the dom0? >> >> Matt >> >> On 9/20/11 11:29 AM, "Giuseppe Civitella" <[email protected]> >> >> wrote: >> >Hi all, >> > >> >I'm trying to resize an instance between two XenServer, each managed >> >by a domU running Natty and current Diablo milestone. >> >When I schedule the resize the instance gets a snapshot and its vhd >> >file get copyed by rsync on the other host. At this point the task >> >fails. >> >At this time there is a record on migrations table of cloud controller's >> >mysql. >> >On source host's nova-compute log i can see: >> > >> >2011-09-20 18:11:34,446 DEBUG nova.rpc [-] received >> >{u'_context_roles': [], u'_context_request_id': >> >u'da2ac014-1600-4fa4-9be7-4c53add5caa4', u'_context_read_deleted': >> >False, u'args': {u'instance_id': >> >u'4548a3ed-2989-4fe7-bca9-bdf55bc9635a', u'migration_id': 12}, >> >u'_context_auth_token': None, u'_context_is_admin': True, >> >u'_context_project_id': u'gcivitella_proj', u'_context_timestamp': >> >u'2011-09-20T16:11:33.724787', u'_context_user_id': >> >u'gcivitella_name', u'method': u'resize_instance', >> >u'_context_remote_address': u'127.0.0.1'} from (pid=20478) >> >process_data /usr/lib/pymodules/python2.7/nova/rpc/amqp.py:200 >> >2011-09-20 18:11:34,447 DEBUG nova.rpc [-] unpacked context: >> >{'user_id': u'gcivitella_name', 'roles': [], 'timestamp': >> >u'2011-09-20T16:11:33.724787', 'auth_token': None, 'msg_id': None, >> >'remote_address': u'127.0.0.1', 'is_admin': True, 'request_id': >> >u'da2ac014-1600-4fa4-9be7-4c53add5caa4', 'project_id': >> >u'gcivitella_proj', 'read_deleted': False} from (pid=20478) >> >_unpack_context /usr/lib/pymodules/python2.7/nova/rpc/amqp.py:432 >> >2011-09-20 18:11:34,447 INFO nova.compute.manager >> >[da2ac014-1600-4fa4-9be7-4c53add5caa4 gcivitella_name gcivitella_proj] >> >check_instance_lock: decorating: |<function resize_instance at >> >0x362d758>| >> >2011-09-20 18:11:34,448 INFO nova.compute.manager >> >[da2ac014-1600-4fa4-9be7-4c53add5caa4 gcivitella_name gcivitella_proj] >> >check_instance_lock: arguments: |<nova.compute.manager.ComputeManager >> >object at 0x2f56810>| |<nova.rpc.amqp.RpcContext object at 0x4b46e50>| >> > >> >|4548a3ed-2989-4fe7-bca9-bdf55bc9635a| >> > >> >2011-09-20 18:11:34,448 DEBUG nova.compute.manager >> >[da2ac014-1600-4fa4-9be7-4c53add5caa4 gcivitella_name gcivitella_proj] >> >instance 4548a3ed-2989-4fe7-bca9-bdf55bc9635a: getting locked state >> >from (pid=20478) get_lock >> >/usr/lib/pymodules/python2.7/nova/compute/manager.py:1121 >> >2011-09-20 18:11:34,522 INFO nova.compute.manager >> >[da2ac014-1600-4fa4-9be7-4c53add5caa4 gcivitella_name gcivitella_proj] >> >check_instance_lock: locked: |False| >> >2011-09-20 18:11:34,522 INFO nova.compute.manager >> >[da2ac014-1600-4fa4-9be7-4c53add5caa4 gcivitella_name gcivitella_proj] >> >check_instance_lock: admin: |True| >> >2011-09-20 18:11:34,523 INFO nova.compute.manager >> >[da2ac014-1600-4fa4-9be7-4c53add5caa4 gcivitella_name gcivitella_proj] >> >check_instance_lock: executing: |<function resize_instance at >> >0x362d758>| >> >2011-09-20 18:11:34,716 DEBUG nova [-] Starting snapshot for VM >> ><nova.db.sqlalchemy.models.Instance object at 0x496eb10> from >> >(pid=20478) _get_snapshot >> >/usr/lib/pymodules/python2.7/nova/virt/xenapi/vmops.py:515 >> >2011-09-20 18:11:34,723 DEBUG nova.virt.xenapi.vm_utils [-] >> >Snapshotting VM OpaqueRef:defbf1c9-f3e6-3822-f110-7b61a35b7c18 with >> >label 'instance-00000048-snapshot'... from (pid=20478) create_snapshot >> >/usr/lib/pymodules/python2.7/nova/virt/xenapi/vm_utils.py:338 >> >2011-09-20 18:11:36,337 INFO nova.virt.xenapi [-] Task >> >[Async.VM.snapshot] OpaqueRef:7ca66e5a-261e-5e7b-441e-dca99ab2a1a8 >> >status: success >> ><value>OpaqueRef:05b68453-bee2-9c9b-db33-2bebe97cbdf7</value> >> >2011-09-20 18:11:36,361 DEBUG nova.virt.xenapi.vm_utils [-] Created >> >snapshot OpaqueRef:05b68453-bee2-9c9b-db33-2bebe97cbdf7 from VM >> >OpaqueRef:defbf1c9-f3e6-3822-f110-7b61a35b7c18. from (pid=20478) >> >create_snapshot >> >/usr/lib/pymodules/python2.7/nova/virt/xenapi/vm_utils.py:352 >> >2011-09-20 18:11:36,361 DEBUG nova.virt.xenapi.vm_utils [-] >> >Re-scanning SR OpaqueRef:d02abfe8-c781-f49f-81b2-6b981ed98097 from >> >(pid=20478) scan_sr >> >/usr/lib/pymodules/python2.7/nova/virt/xenapi/vm_utils.py:804 >> >2011-09-20 18:11:36,916 INFO nova.virt.xenapi [-] Task [Async.SR.scan] >> >OpaqueRef:9514755f-8b94-dea1-5c0b-689bbe282804 status: success >> >2011-09-20 18:11:36,940 DEBUG nova.virt.xenapi.vm_utils [-] VHD >> >9d2ec65d-aeb4-4e6c-811f-78111d5835fc has parent >> >OpaqueRef:1f83df6e-d9aa-90cb-e2d9-b3c672c7ec4d from (pid=20478) >> >get_vhd_parent >> >/usr/lib/pymodules/python2.7/nova/virt/xenapi/vm_utils.py:840 >> > >> >and then the error that stops the task: >> > >> >2011-09-20 18:12:28,311 DEBUG nova.manager [-] Notifying Schedulers of >> >capabilities ... from (pid=20478) periodic_tasks >> >/usr/lib/pymodules/python2.7/nova/manager.py:111 >> >2011-09-20 18:12:28,312 DEBUG nova.rpc [-] Making asynchronous fanout >> >cast... from (pid=20478) fanout_cast >> >/usr/lib/pymodules/python2.7/nova/rpc/amqp.py:545 >> >2011-09-20 18:12:28,312 INFO nova.rpc [-] Creating "scheduler_fanout" >> >fanout exchange >> >2011-09-20 18:12:28,737 INFO nova.virt.xenapi.vm_utils [-] (VM_UTILS) >> >xenserver vm state -> |Running| >> >2011-09-20 18:12:28,737 INFO nova.virt.xenapi.vm_utils [-] (VM_UTILS) >> >xenapi power_state -> |1| >> >2011-09-20 18:12:28,811 ERROR nova [-] in looping call >> >(nova): TRACE: Traceback (most recent call last): >> >(nova): TRACE: File "/usr/lib/pymodules/python2.7/nova/utils.py", >> >line 487, in _inner >> >(nova): TRACE: self.f(*self.args, **self.kw) >> >(nova): TRACE: File >> >"/usr/lib/pymodules/python2.7/nova/virt/xenapi_conn.py", line 408, in >> >_poll_task >> >(nova): TRACE: name = self._session.xenapi.task.get_name_label(task) >> >(nova): TRACE: File >> >"/usr/local/lib/python2.7/dist-packages/XenAPI.py", line 229, in >> >__call__ >> >(nova): TRACE: return self.__send(self.__name, args) >> >(nova): TRACE: File >> >"/usr/local/lib/python2.7/dist-packages/XenAPI.py", line 133, in >> >xenapi_request >> >(nova): TRACE: result = _parse_result(getattr(self, >> >methodname)(*full_params)) >> >(nova): TRACE: File "/usr/lib/python2.7/xmlrpclib.py", line 1224, in >> >__call__ >> >(nova): TRACE: return self.__send(self.__name, args) >> >(nova): TRACE: File "/usr/lib/python2.7/xmlrpclib.py", line 1575, in >> >__request >> >(nova): TRACE: verbose=self.__verbose >> >(nova): TRACE: File "/usr/lib/python2.7/xmlrpclib.py", line 1264, in >> >request >> >(nova): TRACE: return self.single_request(host, handler, >> >request_body, verbose) >> >(nova): TRACE: File "/usr/lib/python2.7/xmlrpclib.py", line 1289, in >> >single_request >> >(nova): TRACE: self.send_request(h, handler, request_body) >> >(nova): TRACE: File "/usr/lib/python2.7/xmlrpclib.py", line 1391, in >> >send_request >> >(nova): TRACE: connection.putrequest("POST", handler, >> >skip_accept_encoding=True) >> >(nova): TRACE: File "/usr/lib/python2.7/httplib.py", line 853, in >> >putrequest >> >(nova): TRACE: raise CannotSendRequest() >> >(nova): TRACE: CannotSendRequest >> >(nova): TRACE: >> > >> >At the moment I'm stuck at this point. >> >Any idea about how to debug this error? >> > >> >Thanks a lot >> >Giuseppe >> > >> 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