Hi Erik, Thanks for your response. Getting below error message when I execute the command in compute node. Could this be the reason? ubuntu@os-compute-01:~$ nova-manage cell_v2 discover_hosts --verbose /usr/local/lib/python2.7/dist-packages/psycopg2/__init__.py:144: UserWarning: The psycopg2 wheel package will be renamed from release 2.8; in order to keep installing from binary please use "pip install psycopg2-binary" instead. For details see: <http://initd.org/psycopg/docs/install.html#binary-install-from-pypi>. """) An error has occurred: Traceback (most recent call last): File "/opt/stack/nova/nova/cmd/manage.py", line 2371, in main ret = fn(*fn_args, **fn_kwargs) File "/opt/stack/nova/nova/cmd/manage.py", line 1473, in discover_hosts by_service) File "/opt/stack/nova/nova/objects/host_mapping.py", line 248, in discover_hosts cell_mappings = objects.CellMappingList.get_all(ctxt) File "/usr/local/lib/python2.7/dist-packages/oslo_versionedobjects/base.py", line 184, in wrapper result = fn(cls, context, *args, **kwargs) File "/opt/stack/nova/nova/objects/cell_mapping.py", line 256, in get_all db_mappings = cls._get_all_from_db(context) File "/usr/local/lib/python2.7/dist-packages/oslo_db/sqlalchemy/enginefacade.py", line 1011, in wrapper with self._transaction_scope(context): File "/usr/lib/python2.7/contextlib.py", line 17, in __enter__ return self.gen.next() File "/usr/local/lib/python2.7/dist-packages/oslo_db/sqlalchemy/enginefacade.py", line 1061, in _transaction_scope context=context) as resource: File "/usr/lib/python2.7/contextlib.py", line 17, in __enter__ return self.gen.next() File "/usr/local/lib/python2.7/dist-packages/oslo_db/sqlalchemy/enginefacade.py", line 659, in _session bind=self.connection, mode=self.mode) File "/usr/local/lib/python2.7/dist-packages/oslo_db/sqlalchemy/enginefacade.py", line 418, in _create_session self._start() File "/usr/local/lib/python2.7/dist-packages/oslo_db/sqlalchemy/enginefacade.py", line 510, in _start engine_args, maker_args) File "/usr/local/lib/python2.7/dist-packages/oslo_db/sqlalchemy/enginefacade.py", line 532, in _setup_for_connection "No sql_connection parameter is established") CantStartEngineError: No sql_connection parameter is established Thanks & Regards, Elan From: Erik Olof Gunnar Andersson [mailto:eandersson@blizzard.com] Sent: Friday, July 19, 2019 1:41 AM To: Li, Cheng1; Elanchezian Settu; openstack-dev@lists.openstack.org Subject: RE: [networking-ovs-dpdk Maybe the compute isn't yet mapped to the cell. ? nova-manage cell_v2 discover_hosts --verbose Best Regards, Erik Olof Gunnar Andersson From: Li, Cheng1 <cheng1.li@intel.com<mailto:cheng1.li@intel.com>> Sent: Wednesday, July 17, 2019 7:00 PM To: Elanchezian Settu <elanchezian.settu@gigamon.com<mailto:elanchezian.settu@gigamon.com>>; openstack-dev@lists.openstack.org<mailto:openstack-dev@lists.openstack.org> Subject: RE: [networking-ovs-dpdk Please check the nova-compute log on os-compute-01 to see if any useful info. It may locate at /var/log/nova/ Thanks, Cheng From: Elanchezian Settu [mailto:elanchezian.settu@gigamon.com] Sent: Wednesday, July 17, 2019 2:14 PM To: openstack-dev@lists.openstack.org<mailto:openstack-dev@lists.openstack.org> Subject: [networking-ovs-dpdk Hi, I'm trying to setup a multi-node OpenStack environment with OVS-DPDK. Unfortunately I'm running into issue that compute node not getting listed in hypervisor list as below screenshot. Due to this I'm unable to create instances on compute node. Herewith I had attached the local.conf files of both controller and compute node. Can someone help me to resolve this issue. Thanks & Regards, Elan This message may contain confidential and privileged information. If it has been sent to you in error, please reply to advise the sender of the error and then immediately delete it. If you are not the intended recipient, do not read, copy, disclose or otherwise use this message. The sender disclaims any liability for such unauthorized use. NOTE that all incoming emails sent to Gigamon email accounts will be archived and may be scanned by us and/or by external service providers to detect and prevent threats to our systems, investigate illegal or inappropriate behavior, and/or eliminate unsolicited promotional emails ("spam").