how a bout this structure

[huang mingyou]

hello,list!
    I want to use mysql cluster and Replication at the same time.this
is my design of this struct.because the have a little data change on
the cluster and more select operation ,so I want use this structure.
have another good structure, and,this structure will some problem?

======
[m1,ndb1,mysql1,ndb_mgm1]  ------- [m2,ndb2,mysql2,ndb_mgm2]
                                                      |
                                          [m3,lvs,keepalived]
                                                      |
                                        --------------------
                                     [m4,mysql]   [m5,mysql]
======
                                                                      
                                   hmy