我有自动故障转移和故障回复配置 HAPROXY:
defaults
mode http
option http-server-close
timeout client 20s
timeout server 20s
timeout connect 4s
frontend ft_app
bind 10.0.0.100:80 name app
default_backend bk_app
backend bk_app
server s1 10.0.0.1:80 check
server s2 10.0.0.2:80 check backup
当主服务器恢复时,如何实现切换之间的延迟?