On Mon, Jun 07, 2021 at 02:51:58PM +0000, Saurabh Deokate wrote: > Hi Team, > > We are seeing an issue in OVS 2.14.0 after moving from 2.8.0. We first set > the controller on the bridge and then set inactivity probe for our controller > to 0 to disable new connection attempts by ovs. After this we start our > controller to serve request. But in the new version of OVS somehow we still > see inactivity probe kicking in after every 5s and trying to reconnect. This > issue is triggered when we are in the middle of handling a packet in our > controller (i.e. OFController) which is blocked for almost 40s. > > > Kernel version: CentOS Linux release 7.9.2009 > Output of ovs-vsctl list controller command shows inactivity_probe: 0 > > Below is the snippet from ovs-vswitchd.log > > 021-05-11T22:32:55.378Z|00608|rconn|INFO|br0.uvms<->tcp:127.0.0.1:6653: > connected > 2021-05-11T22:33:05.382Z|00609|connmgr|INFO|br0.uvms<->tcp:127.0.0.1:6653: 44 > flow_mods 10 s ago (44 adds) > 2021-05-11T22:33:05.386Z|00610|rconn|ERR|br0.uvms<->tcp:127.0.0.1:6653: no > response to inactivity probe after 5 seconds, disconnecting > 2021-05-11T22:33:06.406Z|00611|rconn|INFO|br0.uvms<->tcp:127.0.0.1:6653: > connecting... > 2021-05-11T22:33:06.438Z|00612|rconn|INFO|br0.uvms<->tcp:127.0.0.1:6653: > connected > 2021-05-11T22:33:16.438Z|00613|rconn|ERR|br0.uvms<->tcp:127.0.0.1:6653: no > response to inactivity probe after 5 seconds, disconnecting > 2021-05-11T22:33:17.921Z|00614|rconn|INFO|br0.uvms<->tcp:127.0.0.1:6653: > connecting... > 2021-05-11T22:33:18.108Z|00615|rconn|INFO|br0.uvms<->tcp:127.0.0.1:6653: > connected > 2021-05-11T22:33:28.110Z|00616|rconn|ERR|br0.uvms<->tcp:127.0.0.1:6653: no > response to inactivity probe after 5 seconds, disconnecting > 2021-05-11T22:33:29.433Z|00617|rconn|INFO|br0.uvms<->tcp:127.0.0.1:6653: > connecting... > 2021-05-11T22:33:29.933Z|00618|rconn|INFO|br0.uvms<->tcp:127.0.0.1:6653: > connected > > > Can you please help us find out what could be wrong with this configuration > and what is the expected behaviour from ovs switch when the receiver on the > controller is blocked for long.
Hmm, I can't reproduce this with current OVS. I do see a problem with the fail-open implementation; I'll see a patch for that. Can you show the output of "ovs-vsctl list controller"? _______________________________________________ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
