high availability - Rabbitmq active/passive HA over WAN -

i'm trying provide disaster recovery between 2 data centers rabbitmq. secondary datacenter passive until primary dc goes down.
federation of queues inappropriate because wouldn't move messages until consumers in secondary dc go active. shouldn’t happen unless primary dc unavailable @ point messages inaccessible. i’ve considered creating queue in primary dc receive copy of each message , use federation or shovel copy messages secondary. issue becomes removing duplicate message secondary dc when “original” in primary dc processed.
mirroring queue node in secondary dc work, except rabbitmq won’t cluster on wan due latency. has else faced scenario? thanks.