dhcpd doesn't send client-hostname to peer, breaking DHCP lease registrations w/HA
In a HA setup with DHCP server enabled, both peers will assign IPs. The leases that sync to peers don't include client-hostname. Where DHCP registration to DNS is enabled, each system in a pair only knows the hostnames for leases it issued, leaving name resolution of DHCP hostnames about 50% broken (half will work on the primary only, other half work on the secondary only).
a dead-end discussion of this issue:
dhcpd likely needs fixed.
This is something that will almost certainly be post-2.2, but putting to 2.2 for the moment in case we can find a quick fix.