Hello there
I'm trying to find a suitable solution to load balance Rails applications via
Passenger and HAProxy.Currentliy I'm doing a lot of testing using Apache Bench.
The setting is as simple as follows:
machine A: HAProxy
machine B: Apache with mod_rails
my test: 100 concurrent requests via Apache Bench
When running 100 concurrent requests against HAProxy, Apache Bench has a lot of
non 2XX responses and I get a lot of BADRQ in my HAProxy log like:
Feb 19 08:50:25 localhost.localdomain haproxy[1890]: 10.0.0.1:33917
[19/Feb/2009:08:50:10.898] http-proxy http-proxy/member1 -1/13816/1/-1/14702 503
13757 - - ---- 99/99/99/9/0 0/32 "<BADREQ>"
When running 100 concurrent requests against Apache directly, everything works
fine. I guess it's related to my setting.
Please, can anybody help? I'm really stuck.
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1. haproxy.cfg
global
log 127.0.0.1 local0
log 127.0.0.1 local0 notice
user haproxy
group haproxy
chroot /var/chroot/haproxy
daemon
maxconn 4096
defaults
log global
mode http
option httplog
option dontlognull
retries 5
contimeout 15000
clitimeout 50000
srvtimeout 50000
timeout queue 20000
balance roundrobin
stats enable
stats hide-version
stats scope .
stats uri /haproxy?stats
stats realm Haproxy\ Statistics
stats auth admin:admin
listen http-proxy *.visrez.com:80
server member1 test1.intern.com:80 maxconn 10 check inter 3000
mode tcp
option httpchk /heartbeat
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2. Passenger configuration in apache2.conf:
...
PassengerMaxPoolSize 10
PassengerMaxInstancesPerApp 10
PassengerPoolIdleTime 300
...
___________________________________________
Any ideas?
Really appreciate your help
Matt
