When you say that ovn-controller crashed, what do you mean? I mean if someone kills the pid or it crashes, it never comes back up until and unless I do service ovn-host restart. Do you mean that you killed it? Yes Which process, and how did you kill it? Stating the e.g. I posted above: ps aux | grep controller root 3639845 0.0 0.0 26792 952 ? S<s 17:24 0:00 ovn-controller: monitoring pid 3639846 (healthy) root 3639846 0.0 0.0 27060 2484 ? S< 17:24 0:00 ovn-controller unix:/var/run/openvswitch/db.sock -vconsole:emer -vsyslog:err -vfile:info --no-chdir --log-file=/var/log/openvswitch/ovn-controller.log --pidfile=/var/run/openvswitch/ovn-controller.pid --detach --monitor
Kill -9 3639845and issuing kill -9 3639846 ofcourse kill the whole service. Also we have a known issue for pid file management as it goes stale which I already highlighed in the example and reference @. http://stackoverflow.com/questions/696839/how-do-i-write-a-bash-script-to-restart-a-process-if-it-dies My sample service with respawn is as follow ; as soon as you kill the pid, it just respawns: ps aux | grep fakeservice root 924307 2.7 0.0 782872 23844 ? Sl 12:01 0:00 /fake/fakeservice --v=10 --fakeservice-resource-point=http://fakeurl kill -9 924307 ps aux | grep fakeservice root 924653 12.0 0.0 774420 23728 ? Sl 12:01 0:00 /fake/fakeservice --v=10 --fakeservice-resource-point=http://fakeurl So why can't we get rid of it and just add ovn-host in /etc/init/ and add below lines which immediately respawns? respawn respawn limit x x On Sat, Apr 29, 2017 at 10:04 AM, Ben Pfaff <b...@ovn.org> wrote: > When you say that ovn-controller crashed, what do you mean? Do you mean > that you killed it? Which process, and how did you kill it? > > On Fri, Apr 28, 2017 at 10:51:04PM -0700, Aliasgar Mikail Ginwala wrote: > > Yes: > > > > ps aux | grep controller > > root 3639845 0.0 0.0 26792 952 ? S<s 17:24 0:00 > > ovn-controller: monitoring pid 3639846 (healthy) > > root 3639846 0.0 0.0 27060 2484 ? S< 17:24 0:00 > > ovn-controller unix:/var/run/openvswitch/db.sock -vconsole:emer > > -vsyslog:err -vfile:info --no-chdir > > --log-file=/var/log/openvswitch/ovn-controller.log > > --pidfile=/var/run/openvswitch/ovn-controller.pid --detach --monitor > > root 4067233 0.0 0.0 11744 936 pts/9 S+ 22:46 0:00 grep > > --color=auto controller > > > > > > /etc/init.d/ovn-host installed via debain that is compiled from source > code > > only adds --monitor > > > > On Fri, Apr 28, 2017 at 9:08 PM, Ben Pfaff <b...@ovn.org> wrote: > > > > > Is it running with the --monitor option? If not, either --monitor > > > should be added or the upstart features should be used. > > > > > > On Fri, Apr 28, 2017 at 05:16:09PM -0700, Aliasgar Mikail Ginwala > wrote: > > > > I did double verify: > > > > > > > > This is what is happening after crashing the ovn pid: > > > > > > > > service ovn-host status > > > > Pidfile for ovn-controller (/var/run/openvswitch/ovn-controller.pid) > is > > > > stale > > > > > > > > Works only after manual restart and didn't respawn > > > > service ovn-host restart > > > > 2017-04-29T00:14:37Z|00001|unixctl|WARN|failed to connect to > > > > /var/run/openvswitch/ovn-controller.3623709.ctl > > > > ovs-appctl: cannot connect to > > > > "/var/run/openvswitch/ovn-controller.3623709.ctl" (Connection > refused) > > > > * Starting ovn-controller > > > > > > > > > > > > > > > > Regards, > > > > Aliasgar > > > > > > > > On Fri, Apr 28, 2017 at 4:50 PM, Ben Pfaff <b...@ovn.org> wrote: > > > > > > > > > On Fri, Apr 28, 2017 at 04:02:26PM -0700, Aliasgar Mikail Ginwala > > > wrote: > > > > > > Recently when I was adding monitoring and alerting for ovs and > ovn > > > > > version > > > > > > 2.7.0, I found both of the upstart services are missing > *respawn* . > > > Is it > > > > > > on purpose? If it's not then lets handle it as an improvement to > add > > > it > > > > > in > > > > > > the upstart. Suggestions welcome. > > > > > > > > > > OVS and OVN already restarts itself, so probably nothing is needed. > > > > > > > > > _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
