Public bug reported:
Description
===========
During resize operation the migrate task nova\conductor\tasks\migrate.py tries
to setup the
instance group in the request spec via following call -
scheduler_utils.setup_instance_group(self.context, self.request_spec)
The setup_instance_group tries to get the group details
If there are instance groups available following code gets executed -
group_info = _get_group_details(context, instance_uuid, group_hosts)
if group_info is not None and request_spec.instance_group is not None:
request_spec.instance_group.hosts = list(group_info.hosts)
request_spec.instance_group.policies = group_info.policies
request_spec.instance_group.members = group_info.members
If the group info is not None, then the call fails as the
request_spec.instance_group is None.
Steps to reproduce
==================
- create an instance group.
- Add an instance as a member for that instance group.
- Resize the instance.
- The resize operation fails with following error -
Unexpected exception in API method: AttributeError: 'NoneType' object has no
attribute 'hosts'
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line
160, in _process_incoming
res = self.dispatcher.dispatch(message)
File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py",
line 213, in dispatch
return self._do_dispatch(endpoint, method, ctxt, args)
File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py",
line 183, in _do_dispatch
result = func(ctxt, **new_args)
File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line
232, in inner
return func(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/nova/conductor/manager.py", line 83,
in wrapper
return fn(self, context, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/nova/compute/utils.py", line 953, in
decorated_function
return function(self, context, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/nova/conductor/manager.py", line 282,
in migrate_server
reservations, clean_shutdown, request_spec)
File "/usr/lib/python2.7/site-packages/nova/conductor/manager.py", line 345,
in _cold_migrate
updates, ex, legacy_spec)
File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in
__exit__
self.force_reraise()
File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in
force_reraise
six.reraise(self.type_, self.value, self.tb)
File "/usr/lib/python2.7/site-packages/nova/conductor/manager.py", line 314,
in _cold_migrate
task.execute()
Expected result
===============
Expect to successfully resize the instance.
Actual result
=============
Resize fails with above error.
Environment
===========
1. Openstack Pike
openstack-nova-api-16.0.0-201709220608.ibm.el7.60.noarch
openstack-nova-16.0.0-201709220608.ibm.el7.60.noarch
2. Which hypervisor did you use?
Not relevant here as error is in API/conductor layer itself.
2. Which storage type did you use?
SAN
3. Which networking type did you use?
Not relevant
Logs & Configs
==============
The above exception trace should give a good understanding of where the issue
is occurring.
** Affects: nova
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1719859
Title:
Resize failure due to instance group being None in request spec
Status in OpenStack Compute (nova):
New
Bug description:
Description
===========
During resize operation the migrate task nova\conductor\tasks\migrate.py
tries to setup the
instance group in the request spec via following call -
scheduler_utils.setup_instance_group(self.context, self.request_spec)
The setup_instance_group tries to get the group details
If there are instance groups available following code gets executed -
group_info = _get_group_details(context, instance_uuid, group_hosts)
if group_info is not None and request_spec.instance_group is not None:
request_spec.instance_group.hosts = list(group_info.hosts)
request_spec.instance_group.policies = group_info.policies
request_spec.instance_group.members = group_info.members
If the group info is not None, then the call fails as the
request_spec.instance_group is None.
Steps to reproduce
==================
- create an instance group.
- Add an instance as a member for that instance group.
- Resize the instance.
- The resize operation fails with following error -
Unexpected exception in API method: AttributeError: 'NoneType' object has no
attribute 'hosts'
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line
160, in _process_incoming
res = self.dispatcher.dispatch(message)
File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py",
line 213, in dispatch
return self._do_dispatch(endpoint, method, ctxt, args)
File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py",
line 183, in _do_dispatch
result = func(ctxt, **new_args)
File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line
232, in inner
return func(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/nova/conductor/manager.py", line 83,
in wrapper
return fn(self, context, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/nova/compute/utils.py", line 953, in
decorated_function
return function(self, context, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/nova/conductor/manager.py", line
282, in migrate_server
reservations, clean_shutdown, request_spec)
File "/usr/lib/python2.7/site-packages/nova/conductor/manager.py", line
345, in _cold_migrate
updates, ex, legacy_spec)
File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220,
in __exit__
self.force_reraise()
File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196,
in force_reraise
six.reraise(self.type_, self.value, self.tb)
File "/usr/lib/python2.7/site-packages/nova/conductor/manager.py", line
314, in _cold_migrate
task.execute()
Expected result
===============
Expect to successfully resize the instance.
Actual result
=============
Resize fails with above error.
Environment
===========
1. Openstack Pike
openstack-nova-api-16.0.0-201709220608.ibm.el7.60.noarch
openstack-nova-16.0.0-201709220608.ibm.el7.60.noarch
2. Which hypervisor did you use?
Not relevant here as error is in API/conductor layer itself.
2. Which storage type did you use?
SAN
3. Which networking type did you use?
Not relevant
Logs & Configs
==============
The above exception trace should give a good understanding of where the issue
is occurring.
To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1719859/+subscriptions
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