Jean-Philippe Méthot writes: > This particular message makes it sound as if openvswitch is getting > overloaded. > Sep 23 03:54:08 network1 ovsdb-server: > ovs|01253|reconnect|ERR|tcp:127.0.0.1:50814: no response to inactivity probe > after 5.01 seconds, disconnecting
We get these as well :-( > A lot of those keep appear, and openvswitch always reconnects almost > instantly though. I’ve done some research about that particular > message, but it didn’t give me anything I can use to fix it. Would be interested in solutions as well. But I'm sceptical whether kernel settings can help here, because the timeout/slowness seems to be located in the user-space/control-plane parts of Open vSwitch, i.e. OVSDB. -- Simon. > Jean-Philippe Méthot > Openstack system administrator > Administrateur système Openstack > PlanetHoster inc. > Le 25 sept. 2018 à 19:37, Erik McCormick <emccorm...@cirrusseven.com> a > écrit : > Ate you getting any particular log messages that lead you to conclude your > issue lies with OVS? I've hit lots of kernel limits under those conditions > before OVS itself ever > noticed. Anything in dmesg, journal or neutron logs of interest? > On Tue, Sep 25, 2018, 7:27 PM Jean-Philippe Méthot > <jp.met...@planethoster.info> wrote: > Hi, > Are there some recommendations regarding kernel settings configuration for > openvswitch? We’ve just been hit by what we believe may be an attack of some > kind we > have never seen before and we’re wondering if there’s a way to optimize our > network nodes kernel for openvswitch operation and thus minimize the impact > of such an > attack, or whatever it was. > Best regards, > Jean-Philippe Méthot > Openstack system administrator > Administrateur système Openstack > PlanetHoster inc. > _______________________________________________ > OpenStack-operators mailing list > OpenStack-operators@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators > _______________________________________________ > OpenStack-operators mailing list > OpenStack-operators@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators _______________________________________________ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators