masterha_check_ssh -conf=/etc/masterha/app1.cnf 报错

这篇博客记录了在使用MHA(Master High Availability)进行MySQL复制监控时遇到的问题,包括找不到全局配置文件、无法执行mysqlbinlog命令以及 slave设置检查失败等错误。解决方案是创建软链接到mysqlbinlog的正确路径,并检查app1.cnf配置文件。通过这些步骤,可以解决MySQL Replication的健康问题。

[root@192 app1]# masterha_check_ssh -conf=/etc/masterha/app1.cnf
Fri Jul  9 03:11:31 2021 - [warning] Global configuration file /etc/masterha_default.cnf not found. Skipping.
/etc/masterha/app1.cnf:
 at /usr/local/share/perl5/MHA/SSHCheck.pm line 148.

Fri Jul  9 05:17:12 2021 - [info]   Connecting to root@192.168.2.33(192.168.2.33:22).. 
Can't exec "mysqlbinlog": No such file or directory at /usr/local/share/perl5/MHA/BinlogManager.pm line 106.
mysqlbinlog version command failed with rc 1:0, please verify PATH, LD_LIBRARY_PATH, and client options
 at /usr/local/bin/apply_diff_relay_logs line 493.

Fri Jul  9 05:17:13 2021 - [error][/usr/local/share/perl5/MHA/MasterMonitor.pm, ln208] Slaves settings check failed!
Fri Jul  9 05:17:13 2021 - [error][/usr/local/share/perl5/MHA/MasterMonitor.pm, ln416] Slave configuration failed.
Fri Jul  9 05:17:13 2021 - [error][/usr/local/share/perl5/MHA/MasterMonitor.pm, ln427] Error happened on checking configurations.  at /usr/local/bin/masterha_check_repl line 48.
Fri Jul  9 05:17:13 2021 - [error][/usr/local/share/perl5/MHA/MasterMonitor.pm, ln525] Error happened on monitoring servers.
Fri Jul  9 05:17:13 2021 - [info] Got exit code 1 (Not master dead).

MySQL Replication Health is NOT OK!
 

解决方法

ln -s /usr/local/mysql/bin/mysqlbinlog /usr/bin/mysqlbinlog

vim /etc/masterha/app1.cnf

[root@db-master mha]# masterha_check_ssh --conf=/etc/mha/app1.cnf [root@db-master mha]# [root@db-master mha]# # 2. 验证复制状态(修复认证插件后执行) [root@db-master mha]# masterha_check_repl --conf=/etc/mha/app1.cnf [root@db-master mha]# # 停止现有进程 [root@db-master mha]# pkill -f masterha_manager [root@db-master mha]# [root@db-master mha]# # 前台启动(查看实时错误) [root@db-master mha]# masterha_manager --conf=/etc/mha/app1.cnf --verbose [root@db-master mha]# masterha_check_repl --conf=/etc/mha/app1.cnf > /tmp/check.log 2>&1 [root@db-master mha]# cat /tmp/check.log [root@db-master mha]# nohup masterha_manager --conf=/etc/mha/app1.cnf \ > --remove_dead_master_conf \ > --ignore_last_failover \ > > /var/log/mha/app1/manager.log 2>&1 & [1] 10863 [root@db-master mha]# vi /etc/mha/app1.cnf [1]+ 完成 nohup masterha_manager --conf=/etc/mha/app1.cnf --remove_dead_master_conf --ignore_last_failover > /var/log/mha/app1/manager.log 2>&1 [root@db-master mha]# cat /etc/mha/app1.cnf [server default] user=mha password=Strong@123 manager_workdir=/var/log/mha/app1 manager_log=/var/log/mha/app1/manager.log log_level=DEBUG remote_workdir=/tmp ssh_user=root repl_user=repl repl_password=Strong@123 ping_interval=1 ping_type=SELECT master_ip_failover=/usr/local/bin/mha/master_ip_failover master_ip_online_change=/usr/local/bin/mha/master_ip_online_change report_script=/usr/local/bin/mha/send_report shutdown_script="" secondary_check_script="" [server1] hostname=10.1.1.60 master_binlog_dir=/var/lib/mysql [server2] hostname=10.1.1.61 master_binlog_dir=/var/lib/mysql [server3] hostname=10.1.1.62 master_binlog_dir=/var/lib/mysql
07-30
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