提供了编程的基础技术教程

zl程序教程

您现在的位置是：首页 >  其他

当前栏目

Consul 集群3

集群
2023-03-20 15:35:13 时间

加入成功后server节点上就会产生如下日志

...
...
    2016/03/18 22:00:36 [INFO] agent.rpc: Accepted client: 127.0.0.1:44743
    2016/03/18 22:00:36 [INFO] agent: (LAN) joining: [192.168.100.103]
    2016/03/18 22:00:36 [INFO] agent: (LAN) joined: 0 Err: dial tcp 192.168.100.103:8301: getsockopt: no route to host
    2016/03/18 22:04:06 [INFO] agent.rpc: Accepted client: 127.0.0.1:44778
    2016/03/18 22:04:06 [INFO] agent: (LAN) joining: [192.168.100.103]
    2016/03/18 22:04:06 [INFO] serf: EventMemberJoin: a2 192.168.100.103
    2016/03/18 22:04:06 [INFO] agent: (LAN) joined: 1 Err: <nil>
    2016/03/18 22:04:06 [INFO] consul: member 'a2' joined, marking health alive
    2016/03/18 22:07:12 [INFO] agent.rpc: Accepted client: 127.0.0.1:44813
...
...

Note: 要确保server节点TCP的8300是开放的，最好是server 和client都开放(没准以后client也会更换角色呢)，因为client向server的RPC得依赖这个端口，不打开无法同步

...
...
    2016/03/18 22:04:06 [INFO] serf: EventMemberJoin: a1 192.168.100.104
    2016/03/18 22:04:06 [INFO] consul: adding server a1 (Addr: 192.168.100.104:8300) (DC: dc1)
    2016/03/18 22:04:06 [INFO] consul: New leader elected: a1
    2016/03/18 22:04:07 [ERR] agent: coordinate update error: rpc error: failed to get conn: dial tcp 192.168.100.104:8300: getsockopt: no route to host
    2016/03/18 22:04:09 [ERR] agent: failed to sync remote state: rpc error: failed to get conn: dial tcp 192.168.100.104:8300: getsockopt: no route to host
...
...
...

打开方式一样

[root@h104 consul]# firewall-cmd --add-port=8300/tcp
success
[root@h104 consul]# firewall-cmd --list-all 
public (default, active)
  interfaces: eno16777736 eno33554960
  sources: 
  services: dhcpv6-client ssh
  ports: 80/tcp 8080/tcp 8301/tcp 3306/tcp 8300/tcp 40000/tcp
  masquerade: no
  forward-ports: 
  icmp-blocks: 
  rich rules: 
	
[root@h104 consul]#

打开后client才能正常同步

...
...
    2016/03/18 22:06:03 [INFO] agent: Synced node info
...
...

此时再在两个节点上查看成员状态，彼此都能互识了

[root@h104 consul]# consul members
Node  Address               Status  Type    Build  Protocol  DC
a1    192.168.100.104:8301  alive   server  0.6.4  2         dc1
a2    192.168.100.103:8301  alive   client  0.6.4  2         dc1
[root@h104 consul]# 
----------
[root@docker ~]# consul members
Node  Address               Status  Type    Build  Protocol  DC
a1    192.168.100.104:8301  alive   server  0.6.4  2         dc1
a2    192.168.100.103:8301  alive   client  0.6.4  2         dc1
[root@docker ~]#

Tip: 如果有多个成员，也只用加入一个节点，其它节点会在这个节点加入集群后通过成员间的通讯相互发现

相关文章