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Message #74544
[Bug 1790221] Re: shelved offloaded server still shows old AZ while shelved
The easy fix is to null out the instance.availability_zone here:
https://github.com/openstack/nova/blob/bb14337c30df0c17bc1dadc00d5a5500ae2dc4b7/nova/compute/manager.py#L574
** Changed in: nova
Assignee: (unassigned) => Matt Riedemann (mriedem)
** Also affects: nova/pike
Importance: Undecided
Status: New
** Also affects: nova/queens
Importance: Undecided
Status: New
** Also affects: nova/rocky
Importance: Undecided
Status: New
** Changed in: nova/pike
Status: New => Triaged
** Changed in: nova/rocky
Status: New => Triaged
** Changed in: nova/queens
Importance: Undecided => Low
** Changed in: nova/rocky
Importance: Undecided => Low
** Changed in: nova/queens
Status: New => Triaged
** Changed in: nova/pike
Importance: Undecided => Low
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https://bugs.launchpad.net/bugs/1790221
Title:
shelved offloaded server still shows old AZ while shelved
Status in OpenStack Compute (nova):
Triaged
Status in OpenStack Compute (nova) pike series:
Triaged
Status in OpenStack Compute (nova) queens series:
Triaged
Status in OpenStack Compute (nova) rocky series:
Triaged
Bug description:
When a server is shelved (and offloaded from the compute host), the
instance.host and instance.node values are cleared because it's no
longer on any host:
https://github.com/openstack/nova/blob/bb14337c30df0c17bc1dadc00d5a5500ae2dc4b7/nova/compute/manager.py#L5007
However, the instance.availability_zone is not cleared, so we still
see the old host AZ on the instance from the API.
Recreate steps:
1. create an AZ and put a host in it (this is single-node devstack
created from master today):
stack@stein:~$ openstack aggregate add host DC1 stein
+-------------------+--------------------------------+
| Field | Value |
+-------------------+--------------------------------+
| availability_zone | DC1 |
| created_at | 2018-08-31T21:01:06.000000 |
| deleted | False |
| deleted_at | None |
| hosts | [u'stein'] |
| id | 1 |
| metadata | {u'availability_zone': u'DC1'} |
| name | DC1 |
| updated_at | None |
+-------------------+--------------------------------+
2. Create a server - in this case there is only 1 host and it's in an AZ so that's what shows up for the server output:
stack@stein:~$ openstack server create --flavor m1.tiny --image
cirros-0.3.5-x86_64-disk --wait test-shelve-az
+-------------------------------------+-----------------------------------------------------------------+
| Field | Value |
+-------------------------------------+-----------------------------------------------------------------+
| OS-DCF:diskConfig | MANUAL |
| OS-EXT-AZ:availability_zone | DC1 |
| OS-EXT-SRV-ATTR:host | stein |
| OS-EXT-SRV-ATTR:hypervisor_hostname | stein |
| OS-EXT-SRV-ATTR:instance_name | instance-00000002 |
| OS-EXT-STS:power_state | Running |
| OS-EXT-STS:task_state | None |
| OS-EXT-STS:vm_state | active |
| OS-SRV-USG:launched_at | 2018-08-31T21:05:51.000000 |
| OS-SRV-USG:terminated_at | None |
| accessIPv4 | |
| accessIPv6 | |
| addresses | private=fdde:1239:d41d:0:f816:3eff:fe72:1e68, 10.0.0.9 |
| adminPass | HSetKiH8g336 |
| config_drive | |
| created | 2018-08-31T21:05:44Z |
| flavor | m1.tiny (1) |
| hostId | 50c671bf8b1d64ad108a3d9ee3bfa53efcbdffd15d93060a33c1452c |
| id | 1fee3708-d2b1-4a76-b392-fa255ba426f6 |
| image | cirros-0.3.5-x86_64-disk (94295199-2883-4314-a66b-ac854f62c02f) |
| key_name | None |
| name | test-shelve-az |
| progress | 0 |
| project_id | 567c6a1c89f04c2985c3a8dc48a3aa5d |
| properties | |
| security_groups | name='default' |
| status | ACTIVE |
| updated | 2018-08-31T21:05:51Z |
| user_id | 71835b0bbc6c4baabbf666e44be7af25 |
| volumes_attached | |
+-------------------------------------+-----------------------------------------------------------------+
3. shelve (offload) the server and verify the host and hypervisor_hostname are no longer set for the instance but the AZ still is:
stack@stein:~$ openstack server shelve test-shelve-az
stack@stein:~$ openstack server show test-shelve-az
+-------------------------------------+-----------------------------------------------------------------+
| Field | Value |
+-------------------------------------+-----------------------------------------------------------------+
| OS-DCF:diskConfig | MANUAL |
| OS-EXT-AZ:availability_zone | DC1 |
| OS-EXT-SRV-ATTR:host | None |
| OS-EXT-SRV-ATTR:hypervisor_hostname | None |
| OS-EXT-SRV-ATTR:instance_name | instance-00000002 |
| OS-EXT-STS:power_state | Shutdown |
| OS-EXT-STS:task_state | None |
| OS-EXT-STS:vm_state | shelved_offloaded |
| OS-SRV-USG:launched_at | 2018-08-31T21:05:51.000000 |
| OS-SRV-USG:terminated_at | None |
| accessIPv4 | |
| accessIPv6 | |
| addresses | private=fdde:1239:d41d:0:f816:3eff:fe72:1e68, 10.0.0.9 |
| config_drive | |
| created | 2018-08-31T21:05:44Z |
| flavor | m1.tiny (1) |
| hostId | |
| id | 1fee3708-d2b1-4a76-b392-fa255ba426f6 |
| image | cirros-0.3.5-x86_64-disk (94295199-2883-4314-a66b-ac854f62c02f) |
| key_name | None |
| name | test-shelve-az |
| project_id | 567c6a1c89f04c2985c3a8dc48a3aa5d |
| properties | |
| security_groups | name='default' |
| status | SHELVED_OFFLOADED |
| updated | 2018-08-31T21:06:31Z |
| user_id | 71835b0bbc6c4baabbf666e44be7af25 |
| volumes_attached | |
+-------------------------------------+-----------------------------------------------------------------+
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References
