On Sun, Apr 23, 2017 at 11:32 PM, Marcin Mirecki <mmirecki@redhat.com> wrote:

Hello Gianluca,

Can you please check the ovn north db log.
This is placed in /var/log/openvswitch/ovsdb-server-nb.log
Please check if the logs has any new entries when you try to connect and when you issue the 'ovn-nbctl set-connection ptcp:6641' command.
If the connection attempt is getting through, pvs db should print an error to the log.

Please also try restarting the ovn-northd service.

Do the ovn-controllers connect to the south-db?
You can verify this by looking at /var/log/openvswitch/ovn-controller.log on the ovn-controller host (please look for entries saying "... <north ip>:6642 connected")

Marcin

The ovirt nb log contains:

2017-04-24T07:46:51.541Z|00001|vlog|INFO|opened log file /var/log/openvswitch/ovsdb-server-nb.log

2017-04-24T07:46:51.550Z|00002|ovsdb_server|INFO|ovsdb-server (Open vSwitch) 2.7.0

2017-04-24T07:47:01.560Z|00003|memory|INFO|2268 kB peak resident set size after 10.0 seconds

2017-04-24T07:47:01.560Z|00004|memory|INFO|cells:100 json-caches:1 monitors:1 ses

In my ovn-controller.log of my 3 hosts I have this, when I run the 2 commands below on the provider host

ovn-sbctl set-connection ptcp:6642

ovn-nbctl set-connection ptcp:6641

2017-04-24T07:56:23.178Z|00247|reconnect|INFO|tcp:10.4.192.43:6642: connecting...

2017-04-24T07:56:23.178Z|00248|reconnect|INFO|tcp:10.4.192.43:6642: connection attempt failed (Connection refused)

2017-04-24T07:56:23.178Z|00249|reconnect|INFO|tcp:10.4.192.43:6642: waiting 8 seconds before reconnect

2017-04-24T07:56:31.187Z|00250|reconnect|INFO|tcp:10.4.192.43:6642: connecting...

2017-04-24T07:56:31.188Z|00251|reconnect|INFO|tcp:10.4.192.43:6642: connected

2017-04-24T07:56:31.193Z|00252|ofctrl|INFO|unix:/var/run/openvswitch/br-int.mgmt: connecting to switch

2017-04-24T07:56:31.193Z|00253|rconn|INFO|unix:/var/run/openvswitch/br-int.mgmt: connecting...

2017-04-24T07:56:31.201Z|00254|rconn|INFO|unix:/var/run/openvswitch/br-int.mgmt: connected

2017-04-24T07:56:31.201Z|00255|pinctrl|INFO|unix:/var/run/openvswitch/br-int.mgmt: connecting to switch

2017-04-24T07:56:31.201Z|00256|rconn|INFO|unix:/var/run/openvswitch/br-int.mgmt: connecting...

2017-04-24T07:56:31.201Z|00257|rconn|INFO|unix:/var/run/openvswitch/br-int.mgmt: connected

2017-04-24T07:56:31.202Z|00258|binding|INFO|Releasing lport 0a2a47bc-ea0d-4f1d-8f49-ec903e519983 from this chassis.

On my provider I see then the 3 oVirt hosts connected:

[root@ovmgr1 openvswitch]# netstat -tpn|grep 66

tcp 0 0 10.4.192.43:6642 10.4.168.76:38882 ESTABLISHED 6699/ovsdb-server

tcp 0 0 10.4.192.43:6642 10.4.168.75:45486 ESTABLISHED 6699/ovsdb-server

tcp 0 0 127.0.0.1:5432 127.0.0.1:37074 ESTABLISHED 16696/postgres: eng

tcp 0 0 10.4.192.43:6642 10.4.168.74:59176 ESTABLISHED 6699/ovsdb-server

[root@ovmgr1 openvswitch]#

But it seems that the "set" command above is not persistent across reboot of the provider host.... that in my case is the oVirt engine server