Thanks, once I figure out logging I'll let you guys know what I discover :^)
Thomas Allen Web Developer, ASCE 703.295.6355 -----Original Message----- From: Willy Tarreau [mailto:[email protected]] Sent: Friday, March 06, 2009 1:39 PM To: Allen, Thomas Cc: Jeffrey 'jf' Lim; [email protected] Subject: Re: "option httpchk" is reporting servers as down when they're not Hi Thomas, On Thu, Mar 05, 2009 at 08:45:20AM -0500, Allen, Thomas wrote: > Hi Jeff, > > The thing is that if I don't include the health check, the load balancer works fine and each server receives equal distribution. I have no idea why the servers would be reported as "down" but still work when unchecked. It is possible that your servers expect the "Host:" header to be set during the checks. There's a trick to do it right now (don't forget to escape spaces) : option httpchk GET /index.php HTTP/1.0\r\nHost:\ www.mydomain.com Also, you should check the server's logs to see why it is reporting the service as down. And as a last resort, a tcpdump of the traffic between haproxy and a failed server will show you both the request and the complete error from the server. Regards, Willy
