about redispath 502 response like nginx

[风声]

Hi,

    I deploy the loadbalancer server with nginx,but I want to use session or
cookie stick function. I decide to use haproxy.
    And my question is :
    Nginx has a function,It can resend a request to another real server when
it receives a 502 (like 5xx response) from backend server (or real server).
    How to handle the problem like nginx with haproxy , is haproxy can
handle it like nginx ?

   thank you.
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