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Thank you for reaching out. But I do not see anything in the rabbit logs. I do not see anything in my nova-compute logs except resource tracking information. All my nova-compute services are active. I did try a tcpdump when I restarted the nova-compute services to see if they are communicating to the placement-api and I do not see that any communication. Is the dependency for resource providers to be known dependent on the compute nodes registering with the placement-api?

My logs for nova-placement are as follows:

2018-11-19 07:54:08.236 1306767 WARNING oslo_config.cfg [-] Option "firewall_driver" from group "DEFAULT" is deprecated for removal (nova-network is deprecated, as are any related configuration options.). Its value may be silently ignored in the future. 2018-11-19 07:54:08.243 1306767 WARNING oslo_config.cfg [-] Option "use_neutron" from group "DEFAULT" is deprecated for removal (nova-network is deprecated, as are any related configuration options.). Its value may be silently ignored in the future. 2018-11-19 07:54:08.257 1306767 WARNING oslo_config.cfg [-] Option "url" from group "neutron" is deprecated for removal (Endpoint lookup uses the service catalog via common keystoneauth1 Adapter configuration options. In the current release, "url" will override this behavior, but will be ignored and/or removed in a future release. To achieve the same result, use the endpoint_override option instead.). Its value may be silently ignored in the future. 2018-11-19 07:54:08.269 1306767 WARNING oslo_config.cfg [-] Option "enable" from group "cells" is deprecated for removal (Cells v1 is being replaced with Cells v2.). Its value may be silently ignored in the future. 2018-11-19 07:54:08.288 1306767 WARNING keystonemiddleware.auth_token [-] AuthToken middleware is set with keystone_authtoken.service_token_roles_required set to False. This is backwards compatible but deprecated behaviour. Please set this to True. 2018-11-19 07:54:08.293 1306767 WARNING keystonemiddleware.auth_token [-] Configuring www_authenticate_uri to point to the public identity endpoint is required; clients may not be able to authenticate against an admin endpoint 2018-11-19 07:54:09.422 1306767 INFO nova.api.openstack.placement.requestlog [req-8716d635-619e-4354a0fa-203c51ce43e4 ed991fcebfaf499c8d099cdbe3c37d17 8e69897ae2b840628cff48b229554b5e - default default] 10.0.4.33 "GET /allocation_candidates?limit=1000&resources=DISK_GB%3A1%2CMEMORY_MB%3A512%2CVCPU%3A1" status: 200 len: 53 microversion: 1.17

My logs for rabbit are as follows:

=INFO REPORT==== 19-Nov-2018::07:54:03 === accepting AMQP connection <0.24054.7> (10.0.4.33:42482 -> 10.0.4.32:5672)

=INFO REPORT==== 19-Nov-2018::07:54:03 === Connection <0.24054.7> (10.0.4.33:42482 -> 10.0.4.32:5672) has a client-provided name: nova-api:1295664:b588e4c1-4c05-4a8c-8ee0-ca255791185e

=INFO REPORT==== 19-Nov-2018::07:54:03 === connection <0.24054.7> (10.0.4.33:42482 -> 10.0.4.32:5672 - nova-api:1295664:b588e4c1-4c05-4a8c-8ee0-ca255791185e): user 'openstack' authenticated and granted access to vhost '/'

=INFO REPORT==== 19-Nov-2018::07:54:03 === accepting AMQP connection <0.24065.7> (10.0.4.33:42488 -> 10.0.4.32:5672)

=INFO REPORT==== 19-Nov-2018::07:54:03 === Connection <0.24065.7> (10.0.4.33:42488 -> 10.0.4.32:5672) has a client-provided name: nova-conductor:1295742:15741d03-7b1a-4ae5-b3a9-e76a4a6f32a9

=INFO REPORT==== 19-Nov-2018::07:54:03 === connection <0.24065.7> (10.0.4.33:42488 -> 10.0.4.32:5672 - nova-conductor:1295742:15741d03-7b1a-4ae5-b3a9-e76a4a6f32a9): user 'openstack' authenticated and granted access to vhost '/'

=INFO REPORT==== 19-Nov-2018::07:54:03 === Mirrored queue 'reply_9f6478c9e0f44003bc8d4ad134b3e6a7' in vhost '/': Adding mirror on node rabbit@radosgw3: <29408.24649.5>

=INFO REPORT==== 19-Nov-2018::07:54:03 === Mirrored queue 'reply_9f6478c9e0f44003bc8d4ad134b3e6a7' in vhost '/': Adding mirror on node rabbit@radosgw4: <29411.24920.6>

All compute-nova services running

root@compute3:/home/ubuntu# systemctl status nova-compute ● nova-compute.service - OpenStack Compute Loaded: loaded (/lib/systemd/system/nova-compute.service; enabled; vendor preset: enabled) Active: active (running) since Fri 2018-11-16 01:35:30 EST; 3 days ago Process: 10485 ExecStartPre=/bin/chown nova:nova /var/lock/nova /var/log/nova /var/lib/nova (code=exited, stat Process: 10481 ExecStartPre=/bin/mkdir -p /var/lock/nova /var/log/nova /var/lib/nova (code=exited, status=0/SU Main PID: 10491 (nova-compute) Tasks: 22 Memory: 130.1M CPU: 26min 33.921s CGroup: /system.slice/nova-compute.service └─10491 /usr/bin/python /usr/bin/nova-compute --config-file=/etc/nova/nova.conf --config-file=/etc/no

root@compute2:/var/log/nova# systemctl status nova-compute ● nova-compute.service - OpenStack Compute Loaded: loaded (/lib/systemd/system/nova-compute.service; enabled; vendor preset: enabled) Active: active (running) since Sun 2018-11-18 16:12:21 EST; 15h ago Process: 13269 ExecStartPre=/bin/chown nova:nova /var/lock/nova /var/log/nova /var/lib/nova (code=exited, status=0/SUCCESS) Process: 13262 ExecStartPre=/bin/mkdir -p /var/lock/nova /var/log/nova /var/lib/nova (code=exited, status=0/SUCCESS) Main PID: 13275 (nova-compute) Tasks: 22 Memory: 129.9M CPU: 5min 20.239s CGroup: /system.slice/nova-compute.service └─13275 /usr/bin/python /usr/bin/nova-compute --config-file=/etc/nova/nova.conf --config-file=/etc/nova/nova-compute.conf --log-file=/var/log/nova/nova-compute.log

ubuntu@compute1:~$ sudo systemctl status nova-compute ● nova-compute.service - OpenStack Compute Loaded: loaded (/lib/systemd/system/nova-compute.service; enabled; vendor pre Active: active (running) since Sun 2018-11-18 15:04:21 EST; 17h ago Process: 18224 ExecStartPre=/bin/chown nova:nova /var/lock/nova /var/log/nova Process: 18217 ExecStartPre=/bin/mkdir -p /var/lock/nova /var/log/nova /var/li Main PID: 18230 (nova-compute) Tasks: 22 Memory: 129.8M CPU: 6min 828ms CGroup: /system.slice/nova-compute.service └─18230 /usr/bin/python /usr/bin/nova-compute --config-file=/etc/nova