使用MONITOR可以分别监控集群gtm、Coordinator、Datanode、DCS节点状态或对集群全部节点状态进行监控。
语法：
gha_ctl MONITOR all/gtm/coordinator/datanode/dcs -l dcslist [-c cluster] [-H]
参数说明：
l [-c cluster]表示集群名称，为可选字段，缺省默认值gbase8c；
l dcslist为DCS地址，一般情况下可以只列出一个节点地址，其他节点会自动同步消息。为了保证高可用，也可以列出所有节点地址；
l [-H]集群状态结果将以表格形式展示；
具体操作命令如下：
$ /home/gbase/deploy/bin/gha_ctl monitor all -l http://10.0.7.17:2379,http://10.0.7.18:2379,http://10.0.7.19:2379 -H |
返回全部运行中为成功：
+----+------+-----------+------+-----------------------+---------+--------+
| No | name | host | port | workDir | state | role |
+----+------+-----------+------+-----------------------+---------+--------+
| 0 | gtm1 | 10.0.7.16 | 6666 | /home/gbase/data/gtm1 | running | master |
+----+------+-----------+------+-----------------------+---------+--------+
+----+------+-----------+------+------------------------+---------+
| No | name | host | port | workDir | state |
+----+------+-----------+------+------------------------+---------+
| 0 | cn1 | 10.0.7.17 | 5432 | /home/gbase/data/coord | running |
| 1 | cn2 | 10.0.7.18 | 5432 | /home/gbase/data/coord | running |
| 2 | cn3 | 10.0.7.19 | 5432 | /home/gbase/data/coord | running |
+----+------+-----------+------+------------------------+---------+
+----+-------+-------+-----------+------+------------------------+---------+--------+
| No | group | name | host | port | workDir | state | role |
+----+-------+-------+-----------+------+------------------------+---------+--------+
| 0 | dn1 | dn1_1 | 10.0.7.17 | 5433 | /home/gbase/data/dn1_1 | running | master |
| 1 | dn2 | dn2_1 | 10.0.7.18 | 5433 | /home/gbase/data/dn2_1 | running | master |
| 2 | dn3 | dn3_1 | 10.0.7.19 | 5433 | /home/gbase/data/dn3_1 | running | master |
+----+-------+-------+-----------+------+------------------------+---------+--------+
+----+-----------------------+--------+---------+----------+
| No | url | name | state | isLeader |
+----+-----------------------+--------+---------+----------+
| 0 | http://10.0.7.17:2379 | node_0 | healthy | False |
| 1 | http://10.0.7.19:2379 | node_2 | healthy | False |
| 2 | http://10.0.7.18:2379 | node_1 | healthy | True |
+----+-----------------------+--------+---------+----------+
该集群中已配置1个GTM节点，3个Coordinator节点及3个Datanode节点（Datanode节点无备机）。
