关于MHA在perl 同步测试时报错请问如何解决呢syntax error at /usr/local/bin/master_ip_failover line 36, near "my " Global symbol "$ssh_start_vip" requires explicit package name at /usr/local/bin/master_ip_failover line 36. Execution of /usr/local/bin/master_ip_failover aborted due to compilation errors. Mon Jan 6 03:17:41 2020 - [error][/usr/share/perl5/vendor_perl/MHA/MasterMonitor.pm, ln226] Failed to get master_ip_failover_script status with return code 255:0.