glusterfs集群glusterd显示Disconnect状态导致集群IO请求变慢

172.25.78.16节点的集群状态


[root@szdpl1491 ~]# gluster pool list
UUID                                    Hostname        State
bde7b9e2-af2a-419e-8242-6a8f8e18bb8a    172.25.78.242   Disconnected 
54fa8ec0-3617-4c8e-968a-7402a80a9017    172.25.78.240   Connected 
588bb497-5d9f-4bcf-b0b1-c9d364afb084    172.25.78.241   Connected 
a8522deb-ee16-44a3-a800-9525cb8d64fa    localhost       Connected

172.25.78.242节点在172.25.78.16的状态明显不对，查看其它的节点242的认证信息

172.25.78.240节点的集群状态

[root@szdpl1543 ~]# gluster pool list
UUID                                    Hostname        State
588bb497-5d9f-4bcf-b0b1-c9d364afb084    172.25.78.241   Connected 
bde7b9e2-af2a-419e-8242-6a8f8e18bb8a    172.25.78.242   Connected 
a8522deb-ee16-44a3-a800-9525cb8d64fa    172.25.78.16    Connected 
54fa8ec0-3617-4c8e-968a-7402a80a9017    localhost       Connected 
[root@szdpl1543 ~]# cd /var/lib/glusterd/peers/
[root@szdpl1543 peers]# ls
588bb497-5d9f-4bcf-b0b1-c9d364afb084  a8522deb-ee16-44a3-a800-9525cb8d64fa  bde7b9e2-af2a-419e-8242-6a8f8e18bb8a
[root@szdpl1543 peers]# cat bde7b9e2-af2a-419e-8242-6a8f8e18bb8a 
uuid=bde7b9e2-af2a-419e-8242-6a8f8e18bb8a
state=3
hostname1=172.25.78.242
hostname2=bogon
[root@szdpl1543 peers]# vi bde7b9e2-af2a-419e-8242-6a8f8e18bb8a 
uuid=bde7b9e2-af2a-419e-8242-6a8f8e18bb8a
state=3
hostname1=172.25.78.242

172.25.78.16节点的集群状态

[root@szdpl1491 ~]# gluster pool list
 UUID                                    Hostname        State
  bde7b9e2-af2a-419e-8242-6a8f8e18bb8a    172.25.78.242   Disconnected 
  54fa8ec0-3617-4c8e-968a-7402a80a9017    172.25.78.240   Connected 
  588bb497-5d9f-4bcf-b0b1-c9d364afb084    172.25.78.241   Connected 
  a8522deb-ee16-44a3-a800-9525cb8d64fa    localhost       Connected
[root@szdpl1491 ~]# cd /var/lib/glusterd/peers/
[root@szdpl1491 peers]# ls
54fa8ec0-3617-4c8e-968a-7402a80a9017  588bb497-5d9f-4bcf-b0b1-c9d364afb084  bde7b9e2-af2a-419e-8242-6a8f8e18bb8a
[root@szdpl1491 peers]# cat bde7b9e2-af2a-419e-8242-6a8f8e18bb8a
uuid=bde7b9e2-af2a-419e-8242-6a8f8e18bb8a
state=3
hostname1=bogon
hostname2=172.25.78.242

修改每个节点的var/lib/glusterd/peers/bde7b9e2-af2a-419e-8242-6a8f8e18bb8a 中的hostname1修改为真实的IP，然后重启每个节点的glusterd的服务(systemctl restart glusterd)