anti-affinity server boot failure shows stack trace

[David Patterson]

If anti-affinity policy is set for two different servers, and only one host is available, a stack trace is shown instead of a error message. Failure is expected, but a message about why it failed would be helpful.

On a single node devstack setup:

nova server-group-create --policy anti-affinity aagroup

nova boot --flavor m1.nano --image cirros-0.3.1-x86_64-uec --nic net-id=ea784f2b-b262-451a-821a-5ee7f69b3d63 --hint group=0f2b71ea-3dc3-423d-a9f4-41ac5d0fff07 server1

nova boot --flavor m1.nano --image cirros-0.3.1-x86_64-uec --nic net-id=ea784f2b-b262-451a-821a-5ee7f69b3d63 --hint group=0f2b71ea-3dc3-423d-a9f4-41ac5d0fff07 server2

server1 boots fine
server2 has Status Error and Power State No State

Horizon shows:

Fault
Message
unsupported operand type(s) for |: 'list' and 'set'
Code
500
Details
File "/opt/stack/nova/nova/scheduler/manager.py", line 140, in run_instance legacy_bdm_in_spec) File "/opt/stack/nova/nova/scheduler/filter_scheduler.py", line 86, in schedule_run_instance filter_properties, instance_uuids) File "/opt/stack/nova/nova/scheduler/filter_scheduler.py", line 289, in _schedule filter_properties) File "/opt/stack/nova/nova/scheduler/filter_scheduler.py", line 275, in _setup_instance_group filter_properties['group_hosts'] = user_hosts | group_hosts
Created
April 3, 2014, 1:58 p.m.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/85401

[Akihiro Motoki (amotoki)]

In Horizon we have no way to specify "group" hint in launching an instance.
I am not sure what is a bug in Horizon side.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/85401
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=1680cf8cef9bd670306a0ef74803409f60f21f28
Submitter: Jenkins
Branch: master

commit 1680cf8cef9bd670306a0ef74803409f60f21f28
Author: Balazs Gibizer <email address hidden>
Date: Fri Apr 4 16:55:01 2014 +0200

    Fix anti-affinity server-group boot failure

    When the second instance is booted to an anti-affinity group
    the scheduler fails with an exception due to a missing type conversion.

    Closes-Bug: #1301982
    Change-Id: I87b2a8d8c7d04b781c789374d6e9c7f4c8567e5d

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: milestone-proposed
Review: https://review.openstack.org/86099

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/86099
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=0614a83e3ccb2c1e891909ffffe6380c8617bee3
Submitter: Jenkins
Branch: milestone-proposed

commit 0614a83e3ccb2c1e891909ffffe6380c8617bee3
Author: Balazs Gibizer <email address hidden>
Date: Fri Apr 4 16:55:01 2014 +0200

    Fix anti-affinity server-group boot failure

    When the second instance is booted to an anti-affinity group
    the scheduler fails with an exception due to a missing type conversion.

    Closes-Bug: #1301982
    Change-Id: I87b2a8d8c7d04b781c789374d6e9c7f4c8567e5d
    (cherry picked from commit 1680cf8cef9bd670306a0ef74803409f60f21f28)