I'd add that it's not only in restarts but a machine under heavy load can miss probes from ovsdb, that leads to controller disconnect. This also drops flows, so compute node with VLAN or flat network type remain with broken data plane until ovs agent is restarted.
I'd add that it's not only in restarts but a machine under heavy load can miss probes from ovsdb, that leads to controller disconnect. This also drops flows, so compute node with VLAN or flat network type remain with broken data plane until ovs agent is restarted.