mysql cluster 中集群（管理節點 data節點 sql借點啟動方法）
--關閉集群
在管理節執行命令
[root@fxh config]# /cluster/bin/ndb_mgm -e shutdown
Connected to Management Server at: localhost:1186
3 NDB Cluster node(s) have shutdown.
Disconnecting to allow management server to shutdown.
--啟動管理節點
[root@fxh config]# /cluster/bin/ndb_mgmd -f /cluster_data/config/config.ini
MySQL Cluster Management Server mysql-5.6.29 ndb-7.4.11
--啟動數據節點
[root@fxhmysql-cluster-gpl-7.4.11]# /cluster/bin/ndbd
2016-05-15 06:41:36 [ndbd] INFO -- Angel connected to '192.168.78.141:1186'
2016-05-15 06:41:36 [ndbd] INFO -- Angel allocated nodeid: 2
--重啟SQL節點
[root@fxh mysql-cluster-gpl-7.4.11]# /cluster/bin/mysqladmin -usystem -p shutdown
[root@fxh mysql-cluster-gpl-7.4.11]# /cluster/bin/mysqld_safe --defaults-file=/etc/my.cnf &