MHA集群管理工具，配置用户信任问题

解决办法：（对每个节点都添加信任）

# vim /root/.ssh/authorized_keys 
# for i in {44,45,143};do scp -r /root/.ssh/authorized_keys  root@172.17.44.${i}:/root/.ssh/;done

[root@wtj1vpztmysql04 mha_source]# masterha_check_ssh --conf=/etc/masterha/app1.cnf
Thu Aug  1 09:20:41 2024 - [info] Reading default configuration from /etc/masterha_default.cnf..
Thu Aug  1 09:20:41 2024 - [info] Reading application default configuration from /etc/masterha/app1.cnf..
Thu Aug  1 09:20:41 2024 - [info] Reading server configuration from /etc/masterha/app1.cnf..
Thu Aug  1 09:20:41 2024 - [info] Starting SSH connection tests..
Thu Aug  1 09:20:47 2024 - [debug] 
Thu Aug  1 09:20:42 2024 - [debug]  Connecting via SSH from root@172.17.44.44(172.17.44.44:22) to root@172.17.44.45(172.17.44.45:22)..
Thu Aug  1 09:20:47 2024 - [debug]   ok.
Thu Aug  1 09:20:47 2024 - [debug]  Connecting via SSH from root@172.17.44.44(172.17.44.44:22) to root@172.17.44.143(172.17.44.143:22)..
Thu Aug  1 09:20:47 2024 - [debug]   ok.
Thu Aug  1 09:20:47 2024 - [debug] 
Thu Aug  1 09:20:41 2024 - [debug]  Connecting via SSH from root@172.17.44.143(172.17.44.143:22) to root@172.17.44.45(172.17.44.45:22)..
Thu Aug  1 09:20:42 2024 - [debug]   ok.
Thu Aug  1 09:20:42 2024 - [debug]  Connecting via SSH from root@172.17.44.143(172.17.44.143:22) to root@172.17.44.44(172.17.44.44:22)..
Thu Aug  1 09:20:47 2024 - [debug]   ok.
Thu Aug  1 09:20:47 2024 - [debug] 
Thu Aug  1 09:20:41 2024 - [debug]  Connecting via SSH from root@172.17.44.45(172.17.44.45:22) to root@172.17.44.143(172.17.44.143:22)..
Thu Aug  1 09:20:42 2024 - [debug]   ok.
Thu Aug  1 09:20:42 2024 - [debug]  Connecting via SSH from root@172.17.44.45(172.17.44.45:22) to root@172.17.44.44(172.17.44.44:22)..
Thu Aug  1 09:20:47 2024 - [debug]   ok.
Thu Aug  1 09:20:47 2024 - [info] All SSH connection tests passed successfully.
Use of uninitialized value in exit at /usr/local/bin/masterha_check_ssh line 44.