cassius topology

  (def db (connect host port 
                 {:schema  {"app" ^{:strategy_class "NetworkTopologyStrategy"
                                    :strategy_options {"dc1" 3, "dc2" : 2}}
                                   {"Users" {"name" ^{:index_type :key
                                                      :index_name "user_name_idx"}
                                                     [:utf-8]
                                             "age"     [:long]}}}})))

then do:

(init-schema db)