At least one of monitoring servers is not reachable from this script.

Secondary_check_script= / usr/local/bin/masterha_secondary_check-s 172.17.0.2-s 172.17.0.3-s 172.17.0.4-s 172.17.0.5

Fri Sep 8 12:43:01 2017-[info] Executing SSH check script: save_binary_logs-command=test-start_pos=4-binlog_dir=/data/binlog/,/var/lib/mysql,/var/log/mysql-output_file=/tmp/save_binary_logs_test-manager_version=0.57-binlog_prefix=mysql-bin

Fri Sep 8 12:43:01 2017-[info] HealthCheck: SSH to 172.17.0.4 is reachable.

Fri Sep 8 12:43:04 2017-[warning] Got error on MySQL connect: 2003 (Can't connect to MySQL server on '172.17.0.4')

Fri Sep 8 12:43:04 2017-[warning] Connection failed 2 time (s)..

Ssh: connect to host 172.17.0.2 port 22: No route to host

Monitoring server 172.17.0.2 is NOT reachable!

Fri Sep 8 12:43:04 2017-[warning] At least one of monitoring servers is not reachable from this script. This is likely a network problem. Failover should not happen.

No matter when manager starts up or is running, the server in secondary must be reachable, otherwise failover will not occur