Hello,
I have a question about HAproxy configuration. I have 2 physical servers:
1) ServerA: Debian Lenny 64bit Kernel : 2.6.26-2-amd64 CPU: AMD
Athlon(tm) 64 X2 RAM: 2GB
2) ServerB: Debian Lenny 64bit Kernel: 2.6.26-2-amd64 CPU: AMD
Athlon(tm) 64 X2 RAM: 4GB
On ServerA and ServerB I got 4 vm's:
1) ServerA: vm1 (HAproxy+keepalived) vm11 (installed: Apache - standard
conf.) - MEM: 700MB Same OS as above
2) ServerB: vm2 (HAproxy+keepalived) vm21 (installed: Apache - standard
conf.) - MEM: 700MB Same OS as above
The network configuration for vm's is bridged - br0:
haproxy:
global
log 127.0.0.1 local0
log 127.0.0.1 local1 notice
maxconn 4096
user haproxy
group haproxy
daemon
defaults
log global
mode http
option httplog
option dontlognull
retries 3
option redispatch
maxconn 2000
contimeout 5000
clitimeout 50000
srvtimeout 50000
listen webfarm 192.168.0.111:80
mode http
stats enable
stats auth admin:111
balance roundrobin
cookie JSESSIONID prefix
option abortonclose
option httpclose
option forwardfor
option httpchk HEAD /check.txt HTTP/1.0
server webA 192.168.0.52:80 cookie A maxconn 512 check
server webB 192.168.0.62:80 cookie B maxconn 512 check
sysctl.conf (vm1, vm2)
net.ipv4.tcp_max_syn_backlog = 10240
net.ipv4.tcp_max_tw_buckets = 400000
net.ipv4.ip_nonlocal_bind=1
net.ipv4.tcp_fin_timeout=30
net.ipv4.tcp_tw_reuse=1
net.ipv4.tcp_max_orphans = 60000
net.ipv4.tcp_synack_retries = 3
net.core.somaxconn = 10000
Test:
a) vm11 (ab -c 100 -n 10000 http://127.0.0.1/check.txt):
About: Requests per second: 5286.85 [#/sec] (mean)
b) from 3 server (ab -c 100 -n 10000 http://192.168.0.111/check.txt):
About: Requests per second: 986.80 [#/sec] (mean)
I googled a lot and tuned the HAproxy configuration as above. Also the
system configs but the performance didn't increase (~ 1k to 5k quite poor).
I can send also any additional configurations if it's needed.
Any help would be really appreciated.
Thanks in advance for any suggestions.
Best regards,
Konrad Matyas
