通过netstat监控9030都是允许的，也放行了，防火墙、selinux都是关闭
[root@bgd-dev bin]# netstat -tulnp | grep 8030
tcp6 0 0 :::8030 :::* LISTEN 8793/java
[root@bgd-dev doris]# netstat -tulnp | grep 9030
tcp6 0 0 :::9030 :::* LISTEN 8793/java
但是很奇怪的事每次重启之后，有一台linux可以连接，先到先得的那种意思，比如B连接了
C就不行，我重启之后C优先B就不可以
[root@test-worker-74 ~]# telnet 192.168.20.54 9030
Trying 192.168.20.54...
telnet: connect to address 192.168.20.54: Connection refused
[root@test-worker-74 ~]# telnet 192.168.20.54 9030
Trying 192.168.20.54...
telnet: connect to address 192.168.20.54: Connection refused
[root@test-worker-74 ~]# telnet 192.168.20.54 9030
