On Thu, Feb 4, 2021 at 3:05 AM Paul Browne <pfb29@cam.ac.uk> wrote:

Hi Mauricio,

What happens if instead of the node name you use the node UUID, as returned from;

openstack hypervisor list

I must be doing something wrong, as my output to openstack hypervisor list does not spit out the UUID: +----+---------------------------+-----------------+-----------+-------+ | ID | Hypervisor Hostname | Hypervisor Type | Host IP | State | +----+---------------------------+-----------------+-----------+-------+ | 1 | compute02.example.com | QEMU | 10.1.1.12 | up | | 2 | compute03.example.com | QEMU | 10.1.1.13 | up | | 3 | compute01.example.com | QEMU | 10.1.1.11 | up | +----+---------------------------+-----------------+-----------+-------+ I guess this install was set up to list the FQDN as the 'Hypervisor Hostname' instead of UUID. Then I tried openstack hypervisor show compute01.example.com So I then tried nova hypervisor-list and got 064097ce-af32-45f0-9f5b-7b21434f3cbf as the ID associated with compute01.example.com; I take that is the UUID. However, when I tried it openstack server create \ --image default_centos_8 \ --flavor m1.small \ --key-name raubkey \ --availability-zone nova:064097ce-af32-45f0-9f5b-7b21434f3cbf \ --nic net-id=LONG_BORING-ID \ raub-netest I got | fault | {'code': 500, 'created': '2021-02-04T14:29:09Z', 'message': 'No valid host was found. No such host - host: 064097ce-af32-45f0-9f5b-7b21434f3cbf node: None ', 'details': [...]

?

On Wed, 3 Feb 2021, 17:46 Mauricio Tavares, <raubvogel@gmail.com> wrote:

...

Easy peasy question: According to https://docs.openstack.org/nova/rocky/admin/availability-zones.html, I can specify the host I want to use by following the format

--availability-zone ZONE:HOST

So, let's get the hostnames for the compute nodes.

[raub@test-hn ~(keystone_admin)]$ openstack compute service list --service nova-compute +----+--------------+-----------------------+------+---------+-------+----------------------------+ | ID | Binary | Host | Zone | Status | State | Updated At | +----+--------------+-----------------------+------+---------+-------+----------------------------+ | 11 | nova-compute | compute02.example.com | nova | enabled | up | 2021-02-03T17:25:53.000000 | | 12 | nova-compute | compute03.example.com | nova | enabled | up | 2021-02-03T17:25:53.000000 | | 13 | nova-compute | compute01.example.com | nova | enabled | up | 2021-02-03T17:25:52.000000 | +----+--------------+-----------------------+------+---------+-------+----------------------------+ [raub@test-hn ~(keystone_admin)]$

I want to use compute01.example.com, which I can resolve to 10.1.1.11. But, when I try to create server with (running as admin):

openstack server create \ --image default_centos_8 \ --flavor m1.small \ --key-name raubkey \ --availability-zone nova:compute01.example.com \ --nic net-id=LONG_BORING-ID \ raub-netest

I get the error message (from openstack server show raub-netest|grep fault):

'message': 'No valid host was found. No such host - host: compute01.example.com node: None '

What am I doing wrong here?

On Thu, Feb 4, 2021 at 1:50 PM Ruslanas Gžibovskis <ruslanas@lpic.lt> wrote:

Hi Mauricio,

Faced similar issue. Maybe my issue and idea will help you.

First try same steps from horizon.

Second. In cli, i used same name as hypervizor list output. In most cases for me it is: $stackName-$roleName-$index.localdomain if forget to change localdomain value ;))

I hate to say I do not understand how to expand it back. I take roleName is off "openstack role list", but "openstack stack list" gives me nothing.

My faced issues were related, tah one compute can be in one zone, and multiple aggregation groups in same zone.

Note: Interesting that you use nova blah-blah, try openstack aggregate create zonename --zone zonename And same with openstack aggregate help see help how to add it with openstack.

Hope this helps at least a bit.