cluster config

ndb_mgm -e show

[ndbd(NDB)]    2 node(s)
id=3    @172.16.101.249  (mysql-5.5.30 ndb-7.2.12, Nodegroup: 0, Master)
id=4    @172.16.101.250  (mysql-5.5.30 ndb-7.2.12, Nodegroup: 0)

[ndb_mgmd(MGM)]    2 node(s)
id=1    @172.16.101.253  (mysql-5.5.30 ndb-7.2.12)
id=2    @172.16.101.252  (mysql-5.5.30 ndb-7.2.12)

[mysqld(API)]    2 node(s)
id=5    @172.16.101.252  (mysql-5.5.30 ndb-7.2.12)
id=6    @172.16.101.253  (mysql-5.5.30 ndb-7.2.12)