Hi Yunxiang, I see you are using OpenStack, since I don't know how it was deployed I will assume that you have a developing environment with DevStack.
Using the OVN Northbound DB as an example, you can set the log level to debug with the following command: $ sudo ovs-appctl -t /usr/local/var/run/openvswitch/ovnnb_db.ctl vlog/set file:dbg (the logs can be found at /opt/stack/logs/ovn-northd.log) It's the same for other of the daemons. The ovn-northd one as a second example would be: $ sudo ovs-appctl -t /usr/local/var/run/openvswitch/ovn-northd.<PID>.ctl vlog/set file:dbg (<PID> is the process ID of that daemon) Hope that helps, Lucas On Thu, Feb 14, 2019 at 11:26 AM taoyunupt <taoyun...@126.com> wrote: > > Dear friends, > Sorry to disturb. I have use ovn with openstasck for a > while time,but i still do not know how to enable the log of ovn. > There are only logging options in the manpage or the help > of ovn-nbctl/ovn-sbctl,but no any logging command. > > When i excute cmd of 'ovn-nbctl --syslog-method=libc > --verbose=dbg' or others similar,the print is 'ovn-nbctl: missing command > name (use --help for help)' > > > > Regards, > Yunxiang > > > _______________________________________________ > dev mailing list > d...@openvswitch.org > https://mail.openvswitch.org/mailman/listinfo/ovs-dev _______________________________________________ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss