成果展现
Cluster状态：ndb_mgm ->show
[root@mgm_sql-node ~]# ndb_mgm
-- NDB Cluster -- Management Client --ndb_mgm> show
Connected to Management Server at: 10.10.10.131:1186
Cluster Configuration
状况模拟：
datenode#1-down datanode#2-up mgmnode-up
SQLnode#1 -存取正常
SQLnode#2 -存取正常
datenode#1-down datanode#2-up mgmnode-down
SQLnode#1 -存取正常
SQLnode#2 -存取正常
datenode#1-down datanode#2-up mgmnode-down SQLnode#1 -down
SQLnode#2 -存取正常
