RE: Doesn't work for a very few visitors

From: Joe Torsitano <>
Date: Fri, 18 Dec 2009 17:00:38 -0800

Hi Willy,

What's strange is traffic still appears normal, and is, for probably at least 99% of the visitors. Logged traffic remains about normal (hundreds of thousands of visitors a day). I just get a few e-mails asking why the site has been down for days or when it will be back. But I cannot recreate the problem. And I know there are probably people who just don't e-mail and, unfortunately, don't come back.

Here is the config file with the IP addresses changed, pretty much the default that comes with it...

# this config needs haproxy-1.1.28 or haproxy-1.2.1


        log   local0
        log   local1 notice
        #log loghost    local0 info
        maxconn 4096
        chroot /var/lib/haproxy
        user haproxy
        group haproxy

        log     global
        mode    http
        option  httplog
        option  dontlognull
        retries 3
        option  redispatch
        maxconn 2000
        contimeout      5000
        clitimeout      50000
        srvtimeout      50000

listen  HTTP
        mode    http
        balance roundrobin
        server  httpA check inter 35000 rise 3 fall 3
        server  httpB check inter 35000 rise 3 fall 3

listen stats :2680
        mode http
        stats uri /

 Joe Torsitano

-----Original Message-----
From: Willy Tarreau [] 
Sent: Thursday, December 17, 2009 9:46 PM
To: Joe Torsitano
Subject: Re: Doesn't work for a very few visitors


On Thu, Dec 17, 2009 at 02:07:41PM -0800, Joe Torsitano wrote:

> Whenever I turn on HAProxy everything appears to be working great.
> I always get two or three e-mails from people who ask when the site is
> to be back up. They say the site can no longer be found in their browser,
> even people who have it bookmarked. They say it's like the server is
> As soon as I switch off HAProxy and have the requests delivered directly
> they say everything is fine again. Unfortunately I've never been able to
> recreate it on almost a dozen computers I try. I'm attempting to use
> HAProxy in HTTP mode with Apache servers. Using the Apache load balancer
> works. Any ideas?
not at all, sounds very strange. Are you sure you don't have too short client-side timeouts, which would be compatible with your local computers but not with remote clients (eg: 10 ms) ? Otherwise, please post your config (you can mask your IPs if you want). Willy __________ Information from ESET Smart Security, version of virus signature database 4700 (20091218) __________ The message was checked by ESET Smart Security.
Received on 2009/12/19 02:00

This archive was generated by hypermail 2.2.0 : 2009/12/19 02:15 CET