I set the connection target="ptcp:6641:10.6.20.84" for ovn-nb-db and "ptcp:6642:10.6.20.84" for ovn-sb-db. .84 is the first node of cluster. Also ovn-openflow-probe-interval=30 on compute node. It seems helping. Not that many connect/drop/reconnect in logging. That "commit failure" is also gone. The issue I reported in another thread "packet drop" seems gone. And launching VM starts working.
How should I set connection table for all ovn-nb-db and ovn-sb-db nodes in the cluster to set inactivity_probe? One row with address 0.0.0.0 seems not working. Is "external_ids:ovn-remote-probe-interval" in ovsdb-server on compute node for ovn-controller to probe ovn-sb-db? Is "external_ids:ovn-openflow-probe-interval" in ovsdb-server on compute node for ovn-controller to probe ovsdb-server? What's probe interval for ovsdb-server to probe ovn-controller? Thanks! Tony > -----Original Message----- > From: discuss <ovs-discuss-boun...@openvswitch.org> On Behalf Of Tony > Liu > Sent: Wednesday, August 5, 2020 4:29 PM > To: Han Zhou <hz...@ovn.org> > Cc: ovs-dev <ovs-...@openvswitch.org>; ovs-discuss <ovs- > disc...@openvswitch.org> > Subject: Re: [ovs-discuss] [OVN] no response to inactivity probe > > Hi Han, > > After setting connection target="ptcp:6642:0.0.0.0" for ovn-sb-db, I see > this error. > ======== > 2020-08- > 05T23:01:26.819Z|06799|ovsdb_jsonrpc_server|ERR|ptcp:6642:0.0.0.0: > listen failed: Address already in use ======== Anything I am missing > here? > > > Thanks! > > Tony > > -----Original Message----- > > From: Han Zhou <hz...@ovn.org> > > Sent: Tuesday, August 4, 2020 4:44 PM > > To: Tony Liu <tonyliu0...@hotmail.com> > > Cc: Numan Siddique <num...@ovn.org>; Han Zhou <hz...@ovn.org>; ovs- > > discuss <ovs-discuss@openvswitch.org>; ovs-dev > > <ovs-...@openvswitch.org> > > Subject: Re: [ovs-discuss] [OVN] no response to inactivity probe > > > > > > > > On Tue, Aug 4, 2020 at 2:50 PM Tony Liu <tonyliu0...@hotmail.com > > <mailto:tonyliu0...@hotmail.com> > wrote: > > > > > > Hi, > > > > Since I have 3 OVN DB nodes, should I add 3 rows in connection > table > > for the inactivity_probe? Or put 3 addresses into one row? > > > > "set-connection" set one row only, and there is no "add-connection". > > How should I add 3 rows into the table connection? > > > > > > > > > > You only need to set one row. Try this command: > > > > ovn-nbctl -- --id=@conn_uuid create Connection > > target="ptcp\:6641\:0.0.0.0" inactivity_probe=0 -- set NB_Global . > > connections=@conn_uuid > > > > > > > > Thanks! > > > > Tony > > > > > -----Original Message----- > > > From: Numan Siddique <num...@ovn.org <mailto:num...@ovn.org> > > > > Sent: Tuesday, August 4, 2020 12:36 AM > > > To: Tony Liu <tonyliu0...@hotmail.com > > <mailto:tonyliu0...@hotmail.com> > > > > Cc: ovs-discuss <ovs-discuss@openvswitch.org <mailto:ovs- > > disc...@openvswitch.org> >; ovs-dev <ovs- > > > d...@openvswitch.org <mailto:d...@openvswitch.org> > > > > Subject: Re: [ovs-discuss] [OVN] no response to inactivity probe > > > > > > > > > > > > On Tue, Aug 4, 2020 at 9:12 AM Tony Liu <tonyliu0...@hotmail.com > > <mailto:tonyliu0...@hotmail.com> > > > <mailto:tonyliu0...@hotmail.com > > <mailto:tonyliu0...@hotmail.com> > > wrote: > > > > > > > > > In my deployment, on each Neutron server, there are 13 > > Neutron > > > server processes. > > > I see 12 of them (monitor, maintenance, RPC, API) connect > > to both > > > ovn-nb-db > > > and ovn-sb-db. With 3 Neutron server nodes, that's 36 OVSDB > > clients. > > > Is so many clients OK? > > > > > > Any suggestions how to figure out which side doesn't > > respond the > > > probe, > > > if it's bi-directional? I don't see any activities from > > logging, > > > other than > > > connect/drop and reconnect... > > > > > > BTW, please let me know if this is not the right place to > > discuss > > > Neutron OVN > > > ML2 driver. > > > > > > > > > Thanks! > > > > > > Tony > > > > > > > -----Original Message----- > > > > From: dev <ovs-dev-boun...@openvswitch.org <mailto:ovs- > > dev-boun...@openvswitch.org> <mailto:ovs-dev- <mailto:ovs-dev-> > > > boun...@openvswitch.org <mailto:boun...@openvswitch.org> > > On > > Behalf Of Tony Liu > > > > Sent: Monday, August 3, 2020 7:45 PM > > > > To: ovs-discuss <ovs-discuss@openvswitch.org <mailto:ovs- > > disc...@openvswitch.org> <mailto:ovs- <mailto:ovs-> > > > disc...@openvswitch.org <mailto:disc...@openvswitch.org> > >; > > ovs-dev <ovs- > > > > d...@openvswitch.org <mailto:d...@openvswitch.org> > > <mailto:d...@openvswitch.org <mailto:d...@openvswitch.org> > > > > > > Subject: [ovs-dev] [OVN] no response to inactivity probe > > > > > > > > Hi, > > > > > > > > Neutron OVN ML2 driver was disconnected by ovn-nb-db. > > There are > > > many > > > > error messages from ovn-nb-db leader. > > > > ======== > > > > 2020-08- > > 04T02:31:39.751Z|03138|reconnect|ERR|tcp:10.6.20.81:58620 > > <http://10.6.20.81:58620> > > > <http://10.6.20.81:58620> : no > > > > response to inactivity probe after 5 seconds, > > disconnecting > > > > 2020-08- > > 04T02:31:42.484Z|03139|reconnect|ERR|tcp:10.6.20.81:58300 > > <http://10.6.20.81:58300> > > > <http://10.6.20.81:58300> : no > > > > response to inactivity probe after 5 seconds, > > disconnecting > > > > 2020-08- > > 04T02:31:49.858Z|03140|reconnect|ERR|tcp:10.6.20.81:59582 > > <http://10.6.20.81:59582> > > > <http://10.6.20.81:59582> : no > > > > response to inactivity probe after 5 seconds, > > disconnecting > > > > 2020-08- > > 04T02:31:53.057Z|03141|reconnect|ERR|tcp:10.6.20.83:42626 > > <http://10.6.20.83:42626> > > > <http://10.6.20.83:42626> : no > > > > response to inactivity probe after 5 seconds, > > disconnecting > > > > 2020-08- > > 04T02:31:53.058Z|03142|reconnect|ERR|tcp:10.6.20.82:45412 > > <http://10.6.20.82:45412> > > > <http://10.6.20.82:45412> : no > > > > response to inactivity probe after 5 seconds, > > disconnecting > > > > 2020-08- > > 04T02:31:54.067Z|03143|reconnect|ERR|tcp:10.6.20.81:59416 > > <http://10.6.20.81:59416> > > > <http://10.6.20.81:59416> : no > > > > response to inactivity probe after 5 seconds, > > disconnecting > > > > 2020-08- > > 04T02:31:54.809Z|03144|reconnect|ERR|tcp:10.6.20.81:60004 > > <http://10.6.20.81:60004> > > > <http://10.6.20.81:60004> : no > > > > response to inactivity probe after 5 seconds, > > disconnecting > > > ======== > > > > > > > > Could anyone share a bit details how this inactivity > > probe works? > > > > > > > > > > > > The inactivity probe is sent by both the server and clients > > > independently. > > > Meaning ovsdb-server will send an inactivity probe every 'x' > > configured > > > seconds to all its connected clients and if it doesn't get a > reply > > from > > > the client within some time, it disconnects the connection. > > > > > > The inactivity probe from the server side can be configured. Run > > "ovn- > > > nbctl list connection" > > > and you will see inactivity_probe column. You can set this column > > to > > > desired value like - ovn-nbctl set connection . > > inactivity_probe=30000 > > > (for 30 seconds) > > > > > > The same thing for SB ovsdb-server. > > > > > > Similarly each client (ovn-northd, ovn-controller, neutron server) > > sends > > > inactivity probe every 'y' seconds and if the client doesn't get > > any > > > reply from ovsdb-server it will disconnect the connection and > > reconnect > > > again. > > > > > > For ovn-northd you can configured this as - ovn-nbctl set > NB_Global > > . > > > options:northd_probe_interval=30000 > > > > > > For ovn-controllers - ovs-vsctl set open . external_ids:ovn- > > remote- > > > probe-interval=30000 > > > > > > There is also a probe interval for openflow connection from ovn- > > > controller to ovs-vswitchd which you can configure as ovs-vsctl > set > > > open . external_ids:ovn-openflow-probe-interval=30 (this is in > > seconds) > > > > > > > > > Regarding the neutron server I think it is set to 60 seconds. > > Please see > > > this - > > > > > > https://github.com/openstack/neutron/blob/master/neutron/conf/plugins/ml > > > 2/drivers/ovn/ovn_conf.py#L80 > > > > > > From the logs you shared, it looks like ovsdb-server is not > getting > > the > > > probe reply from neutron server after 5 seconds and hence it is > > > disconnecting. Not sure what's happening though. > > > > > > You can try increasing the inactivity probe interval on the > > ovsdb-server > > > side with the first command I shared. > > > Note: If "ovn-nbctl list connection" returns empty, you need to > > create a > > > connection row like - ovn-nbctl set-connection ptcp:6641:<IP> > > > > > > > > > Thanks > > > Numan > > > > > > > > > > > > > > > > From OVN ML2 driver log, I see it connected to the leader, > > then > > > the > > > > connection was closed by leader after 5 or 6 seconds. Is > > this > > > probe one- > > > > way or two-ways? > > > > Both sides are not busy, not taking much CPU cycles. Not > > sure how > > > this > > > > could happen. Any thoughts? > > > > > > > > > > > > Thanks! > > > > > > > > Tony > > > > > > > > > > > > > > > > _______________________________________________ > > > > dev mailing list > > > > d...@openvswitch.org <mailto:d...@openvswitch.org> > > <mailto:d...@openvswitch.org <mailto:d...@openvswitch.org> > > > > > https://mail.openvswitch.org/mailman/listinfo/ovs-dev > > > _______________________________________________ > > > discuss mailing list > > > disc...@openvswitch.org <mailto:disc...@openvswitch.org> > > <mailto:disc...@openvswitch.org <mailto:disc...@openvswitch.org> > > > > https://mail.openvswitch.org/mailman/listinfo/ovs-discuss > > > > > > > > > > > > _______________________________________________ > discuss mailing list > disc...@openvswitch.org > https://mail.openvswitch.org/mailman/listinfo/ovs-discuss _______________________________________________ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
