arv-federation-migrate supports LoginCluster type migrations
When a satellite cluster changes its
LoginCluster configuration, the previous accounts are no longer accessible and the accounts from the new login cluster could have the same username of some of the old ones. This could lead to issues when the satellite cluster attempts to cache the remote users into their local database.
arv-federation-migrate should be able to notice the accounts from the old login cluster and list them on its report so that they could be merged with the new ones, resolving any username collision that might be present.