Hi Neil, Le mercredi 16 février 2011 18:45:00, Neil Prockter a écrit : > Hello > > I using tomcat as a backend server and I'd like to use a httpchk. > Because tomcat splits the response to the keepalive over a few packets > haproxy is marking it as down. tshark shows the response is a 200 just > its not in the first packet.
I don't understand what you mean with "keepalive" for this checks. > (...) > # option httpchk HEAD / > server backend-0 backend-0:8080 cookie epd0 check inter 2000 rise 2 > fall 5 > server backend-1 backend-1:8080 cookie epd1 check inter 2000 rise 2 > fall 5 > (...) > uncommenting the httpchk leads to > > [WARNING] 046/172220 (28956) : Server epd-rewrite/backend-0 is DOWN, > reason: Layer7 timeout, check duration: 2003ms. > [WARNING] 046/172221 (28956) : Server epd-rewrite/backend-1 is DOWN, > reason: Layer7 timeout, check duration: 2004ms. > [ALERT] 046/172221 (28956) : proxy 'epd-rewrite' has no server available! > > Please could someone enlighten me as to which options/changes they've > found effective. Are you sure that http://backend-0:8080/ and http://backend-1:8080/ answers in less that 2000 ms ? Your logs say they're longer than that. Just to check here, which version of tomcat are you using ? Is your application behind those urls or the ROOT application provided by tomcat ? Also, nothing with the issue, but : - I don't think you want to use "cookie SERVERID rewrite" - you should use "option httpclose" or "option http-server-close" to not have issues with your cookie stickiness. -- Cyril Bonté
