I am trying to set up HAproxy load balancer and sticky session on Redhat Enterprise 7.7. installing the HAproxy in two node web server using Apache to be "Web-Load-balance" and two node app server using java+jboss to be "App-Load-Balance".
Note: The web servers(Two Node) has installing Apache and HAProxy in the same servers Note: The App servers(Two Node) has installing Java+Jboss and HAProxy in the same servers
I'll share with you below the 4 test cases as vendor had got a result as:
Case 1:- Testing status (OK) no issue
- Web1 = ON
- Web2 = ON
- App1 = ON
- App2 = OFF
Case 2:- Testing status (OK) no issue
- Web1 = ON
- Web2 = ON
- App1 = OFF
- App2 = ON
Case 3:- Testing status "App-Load-Balance" server unable to maintained session ID (JBOSS)
- Web1 = ON
- Web2 = ON
- App1 = ON
- App2 = ON
Case 4:- Testing status "App-Load-Balance" server unable to maintained session ID (JBOSS)
- Web1 = ON
- Web2 = OFF
- App1 = ON
- App2 = ON
i will share the HAproxy configuer for both Web-load-balancer and App-load-balancer i don't mind that if I edit it complete and retype the code configuration from beginning.
The HAproxy code for two node Web servers as:
#---------------------------------------------------------------------
# Global settings
#---------------------------------------------------------------------
global
log 127.0.0.1 local2
chroot /var/lib/haproxy
pidfile /var/run/haproxy.pid
maxconn 4000
user haproxy
group haproxy
daemon
stats socket /var/lib/haproxy/stats
#---------------------------------------------------------------------
defaults
mode http
log global
# option httplog
option dontlognull
#option http-server-close
#option forwardfor except 127.0.0.0/8
option redispatch
retries 3
timeout http-request 10s
timeout queue 1m
timeout connect 10s
timeout client 1m
timeout server 1m
timeout http-keep-alive 10s
timeout check 10s
maxconn 3000
#------------------- Haproxy LB -----------------------
frontend ft_http
bind *:880
mode http
default_backend bk_http
frontend ft_https
bind *:8443
mode tcp
default_backend bk_https
backend bk_http
mode http
balance roundrobin
server Web1_SRV 10.10.10.121:80 check
server Web2_SRV 10.10.10.122:80 check
backend bk_https
mode tcp
balance roundrobin
server Web1_SRV 10.10.10.121:443 check
server Web2_SRV 10.10.10.122:443 check
peers Mypeer
peer LB1 10.10.10.121:1024
peer LB2 10.10.10.122:1024
#------------------ Haproxy LB --------------------------
#------------------- HAproxy Status Page -----------------
listen stats
bind *:1978
stats enable
stats hide-version
stats realm Haproxy\ Statistics
stats uri /showus
stats auth admin:admin
The code for Keepalived as web1:
#---------------------------------------------------------
# Start Keepalived1 -
#----------------------------------------------------------
vrrp_script chk_haproxy {
script "pidof haproxy"
interval 2
}
vrrp_instance VI_1 {
interface eth0
state MASTER
virtual_router_id 40
priority 150
vrrp_unicast_bind 10.10.10.121 #Internal IP of this node
vrrp_unicast_peer 10.10.10.122 #Internal IP of Backup node
virtual_ipaddress {
10.10.10.120
}
track_script {
chk_haproxy
}
}
#----------------------------------------------------------
# End Keepalived1 - WEB1
#---------------------------------------------------------
The code for Keepalived as web2:
#----------------------------------------------------------
# Start Keepalived2
#----------------------------------------------------------
vrrp_script chk_haproxy {
script "pidof haproxy"
interval 2
}
vrrp_instance VI_1 {
interface eth0
state MASTER
virtual_router_id 40
priority 100
vrrp_unicast_bind 10.10.10.122 #Internal IP of this node
vrrp_unicast_peer 10.10.10.121 #Internal IP of Backup node
virtual_ipaddress {
10.10.10.120
}
track_script {
chk_haproxy
}
}
#----------------------------------------------------------
# End Keepalived2 -WEB2
#---------------------------------------------------------
The HAproxy code for two node APP servers as:
#---------------------------------------------------------------------
global
log 127.0.0.1 local2
chroot /var/lib/haproxy
pidfile /var/run/haproxy.pid
maxconn 4000
user haproxy
group haproxy
daemon
stats socket /var/lib/haproxy/stats
#-------------------------------------------------------------
defaults
mode tcp
log global
option tcplog
option dontlognull
#option http-server-close
#option forwardfor except 127.0.0.0/8
option redispatch
retries 3
#timeout http-request 10s
timeout queue 1m
timeout connect 10s
timeout client 1m
timeout server 1m
#timeout http-keep-alive 10s
timeout check 10s
maxconn 3000
#-------------------- Start ----------------------------------
frontend haproxy_inbound
bind *:8888
unique-id-format %{+X}o\ %ci:%cp
unique-id-header X-Unique-ID
option tcp-smart-accept
option splice-request
option splice-response
default_backend LB
backend LB
option tcp-smart-connect
option splice-request
option splice-response
balance hdr(X-Unique-ID)
server APP1_SRV 10.10.24.111:8109 maxconn 10 weight 1 check
server APP2_SRV 10.10.24.112:8109 maxconn 10 weight 1 check
peers Mypeer
peer LB1 10.10.24.111:1024
peer LB2 10.10.24.112:1024
#----------- Start HAPRoxy Status page -----------------------
listen stats
bind *:1978
mode http
stats enable
stats hide-version
stats realm Haproxy\ Statistics
stats uri /showus
stats auth admin:admin
#---------- End HAPRoxy Status page ----------------
The code Keepalived for APP1 as:
#----------------------------------------------------------
# Start Keepalived1 -
#----------------------------------------------------------
vrrp_script chk_haproxy {
script "pidof haproxy"
interval 2
}
vrrp_instance VI_1 {
interface eth0
state MASTER
virtual_router_id 51
priority 150
vrrp_unicast_bind 10.10.24.111 #Internal IP of this node
vrrp_unicast_peer 10.10.24.112 #Internal IP of Backup node
virtual_ipaddress {
10.10.24.110
}
track_script {
chk_haproxy
}
}
#----------------------------------------------------------
# End Keepalived1 - APP1
#---------------------------------------------------------
The code Keepalived for APP2 as:
#----------------------------------------------------------
# Start Keepalived2 -
#----------------------------------------------------------
vrrp_script chk_haproxy {
script "pidof haproxy"
interval 2
}
vrrp_instance VI_1 {
interface eth0
state MASTER
virtual_router_id 51
priority 100
vrrp_unicast_bind 10.10.24.112 #Internal IP of this node
vrrp_unicast_peer 10.10.24.111 #Internal IP of Backup node
virtual_ipaddress {
10.10.24.110
}
track_script {
chk_haproxy
}
}
#----------------------------------------------------------
# End Keepalived2 - APP2
#----------------------------------------------------------
**
The goal from HAproxy to provide us load balancing and Sticky session.
**
Thank you.
