admin:forest-get-failover-hosts( $config as element(configuration), $forest-id as xs:unsignedLong ) as xs:unsignedLong*
This function returns the IDs of the hosts defined as failover hosts for this forest. The order in which the hosts IDs are returned is significant, with the first ID being the primary host, the second (if there is one) being the secondary, and so on.
http://marklogic.com/xdmp/privileges/admin/forest
http://marklogic.com/xdmp/privileges/admin/forest/{id}
xquery version "1.0-ml"; import module namespace admin = "http://marklogic.com/xdmp/admin" at "/MarkLogic/admin.xqy"; let $config := admin:get-configuration() return admin:forest-get-failover-hosts($config, admin:forest-get-id($config, "test"))