Following the docs online (Newton), the installation was successful. However when the VM that has the controller (and ovn-nb) restarted, it fails to bring up ovs & ovn. This is ubuntu deployment using python-networking-ovn and locally built ovn. Is this a deployment problem? Is it possible to recover from here without losing the neutron DB sync? I have not configured any networks that I need to save.
NOTE: I did a reboot once before and the services came back fine at that time. Not sure if there is a sequence to be followed while shutting down - if so can I know what it would be? Nov 2 15:19:42 controller neutron-server[2715]: 2016-11-02 15:19:42.003 3052 ERROR networking_ovn.ovsdb.impl_idl_ovn [-] OVS database connection to OVN_Northbound failed with error: 'Could not retrieve schema from tcp: 192.168.56.102:6641: Connection refused'. Verify that the OVS and OVN services are available and that the 'ovn_nb_connection' and 'ovn_sb_connection' configuration options are correct. Nov 2 15:19:42 controller neutron-server[2715]: 2016-11-02 15:19:42.003 3052 ERROR networking_ovn.ovsdb.impl_idl_ovn Traceback (most recent call last): Nov 2 15:19:42 controller neutron-server[2715]: 2016-11-02 15:19:42.003 3052 ERROR networking_ovn.ovsdb.impl_idl_ovn File "/usr/lib/python2.7/dist-packages/networking_ovn/ovsdb/impl_idl_ovn.py", line 84, in __init__ .... .... Nov 2 15:19:42 controller neutron-server[2715]: 2016-11-02 15:19:42.003 3052 ERROR networking_ovn.ovsdb.impl_idl_ovn 'err': os.strerror(err)}) Nov 2 15:19:42 controller neutron-server[2715]: 2016-11-02 15:19:42.003 3052 ERROR networking_ovn.ovsdb.impl_idl_ovn Exception: Could not retrieve schema from tcp:192.168.56.102:6641: Connection refused Nov 2 15:19:42 controller neutron-server[2715]: 2016-11-02 15:19:42.003 3052 ERROR networking_ovn.ovsdb.impl_idl_ovn
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