Answer by alexpilotti for I setup a controller+network node on Oracle Linux(Kilo), and install a hyper-v compute node following cloudbase doc. But after installation, I can find neutron hyper-v agent, but no related compute services. And I checked that table compute_nodes in nova database is empty. Any idea? compute service is running correctly on windows 2012 R2. No error message reported on either compute node or controller node. compute-node.log as below: 2015-12-30 09:46:21.717 2624 INFO oslo_messaging._drivers.impl_rabbit [req-e3650168-e7d4-4d2b-8a44-7c9f504f3248 - - - - -] Connecting to AMQP server on 192.168.12.20:5672 2015-12-30 09:46:21.733 2624 INFO oslo_messaging._drivers.impl_rabbit [req-e3650168-e7d4-4d2b-8a44-7c9f504f3248 - - - - -] Connected to AMQP server on 192.168.12.20:5672 2015-12-30 09:46:21.749 2624 INFO oslo_messaging._drivers.impl_rabbit [req-e3650168-e7d4-4d2b-8a44-7c9f504f3248 - - - - -] Connecting to AMQP server on 192.168.12.20:5672 2015-12-30 09:46:21.763 2624 INFO oslo_messaging._drivers.impl_rabbit [req-e3650168-e7d4-4d2b-8a44-7c9f504f3248 - - - - -] Connected to AMQP server on 192.168.12.20:5672 2015-12-30 09:46:21.826 2624 WARNING oslo_config.cfg [req-e3650168-e7d4-4d2b-8a44-7c9f504f3248 - - - - -] Option "lock_path" from group "DEFAULT" is deprecated. Use option "lock_path" from group "oslo_concurrency". 2015-12-30 09:46:26.059 2624 WARNING nova.compute.resource_tracker [req-0833d144-8cd2-48b4-a6f8-d23fe59fe102 - - - - -] No compute node record for COMPUTE-NODE1:COMPUTE-NODE1 2015-12-30 09:46:26.282 2624 INFO oslo_messaging._drivers.impl_rabbit [req-0833d144-8cd2-48b4-a6f8-d23fe59fe102 - - - - -] Connecting to AMQP server on 192.168.12.20:5672 2015-12-30 09:46:26.299 2624 INFO oslo_messaging._drivers.impl_rabbit [req-0833d144-8cd2-48b4-a6f8-d23fe59fe102 - - - - -] Connected to AMQP server on 192.168.12.20:5672 The root cause seems I tried using MTU 9000. When I use the default MTU=1500, it works well. But whenever I use MTU 9000, it doesn't work. What I have updated: dnsmasq.conf: dhcp-option-force=26,8950 l3_agent.ini: [DEFAULT] network_device_mtu = 8950 ml2_conf.ini: [ml2] path_mtu = 8950 segment_mtu = 8950` nova.conf: [DEFAULT] network_device_mtu = 8950 How could I enable mtu 9000?

Hi, this is related most probably to configuration issues in the hyper-v nova.conf Can you please post the content of c:\openstack\log\nova-compute.log? Thanks, Alessandro