both haproxy/haproxy-devel non-existent option lb-agent-chk
both 2.4.5-p1 and 2.5.0
setting Health check method to Agent
Errors found while starting haproxy [ALERT] 272/161510 (41883) : parsing [/var/etc/haproxy_test/haproxy.cfg:78] : unknown option 'lb-agent-chk'. [ALERT] 272/161510 (41883) : Error(s) found in configuration file : /var/etc/haproxy_test/haproxy.cfg [ALERT] 272/161510 (41883) : Fatal errors found in configuration.
i think lb-agent-chk was removed as an option, it was mentioned here