MySQL 叢集的安全關閉和重啟方法

--關閉叢集
在管理節點所在的主機上執行下面命令
[root@localhost 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@localhost config]# /cluster/bin/ndb_mgmd -f /cluster_data/config/config.ini
MySQL Cluster Management Server mysql-5.6.29 ndb-7.4.11

--啟動資料節點
[root@localhost mysql-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@localhost mysql-cluster-gpl-7.4.11]# /cluster/bin/mysqladmin -usystem -p shutdown
[root@localhost mysql-cluster-gpl-7.4.11]# /cluster/bin/mysqld_safe --defaults-file=/etc/my.cnf &