HAProxy Enterprise Documentation 1.6r2

Redis Health Checks

HAProxy Enterprise can monitor a Redis service by sending the PING command. The check is valid if the server responds with the string +PONG. Add the option redis-check directive to your backend section and include a check parameter on each server line.

backend be_redis
   option redis-check
   server srv1 check
   server srv2 check

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SMTP Health Checks