|Support Status||Test Case|
replication-manager can create each federation table on multiple master shard group inside spider proxies
replication-manager on failover and switchover of one master shard reattach the table federation to the new master in the shard group.
replication-manager constantly rediscover tables and schemas on each master shard group to maintain table definitions.
replication-manager the advantage is that such topology maintain ACID capabilities between tables on different servers and can enable very efficient cross shard joins.