A replication site can now be created as a replication view by using the DB_ENV->rep_set_view() method. A replication view is a read-only copy of some or all of the replicated databases that cannot become master, participate in elections, or contribute to transaction durability.
DB_REPMGR_ISVIEW - A new value
for the flags field of the
DB_REPMGR_SITE structures
returned by the DB_ENV->repmgr_site_list() method to
indicate that a site is a replication view.