Hi, In our control plane cluster which HA setup by - Pacemaker/Corosync - HAProxy When I’m moving virtual IP (VIP) to another node services - nova[api-scheduler-conductor] - cinder - etc… In all logs show ERROR nova.servicegroup.drivers.db DBConnectionError: (pymysql.err.OperationalError) (2003, "Can't connect to MySQL server on '10.60.1.220' ([Errno 111] ECONNREFUSED)") [SQL: u'SELECT 1’] And here is haproxy.cfg ########## global chroot /var/lib/haproxy daemon group haproxy maxconn 16000 pidfile /var/run/haproxy.pid user haproxy defaults log 127.0.0.1 local0 maxconn 16000 option redispatch retries 3 timeout http-request 10s timeout queue 1m timeout connect 10s timeout client 3600s timeout server 3600s timeout check 10s listen galera_cluster bind 10.60.1.220:3306 balance source server controller5 10.60.1.15:3306 check inter 2000 rise 2 fall 5 server controller6 10.60.1.16:3306 backup check inter 2000 rise 2 fall 5 server controller7 10.60.1.17:3306 backup check inter 2000 rise 2 fall 5 ########### I know it’s not service level problem or bug and causing by haproxy and mysql connection. I’m wondering if any experience or idea how to deal with it will be great