On Tue, 24 Jul 2018 16:30:04 -0400
Mark Michelson wrote:
> When ovn-controller is restarted, the ovn-controller process is stopped
> and then started again. When the process is stopped, the process cleans
> itself up by removing all traces of itself from the central southbound
> database and the OVS database on the hypervisor. The issue with this is
> that this removes tunnels, meaning that traffic from other hypervisors
> in the cluster is unable to reach the local hypervisor. When restarting,
> it would be better to not clean up, thus allowing for uninterrupted
> traffic flow.
>
> This patchset allows for ovn-controller to be stopped without cleaning
> itself up. This way, during a restart, traffic can still flow freely
> while ovn-controller is down.
>
> Mark Michelson (2):
> ovn: Add '--restart' flag to ovn-controller exit.
> ovn: Modify restart_controller in ovn-ctl to use --restart
>
> ovn/controller/ovn-controller.c | 92 +++-
> ovn/utilities/ovn-ctl | 4 +-
> tests/ovn.at| 186
>
> utilities/ovs-lib.in| 2 +-
> 4 files changed, 241 insertions(+), 43 deletions(-)
>
I had one minor comment. Otherwise LGTM:
Acked-by: Jakub Sitnicki
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