ps3最好玩的龙珠:haproxy+keepalived实现高可用负载均衡
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haproxy+keepalived实现高可用负载均衡
我的环境:haproxy keepalived 主:192.168.1.192
haproxy keepalived 备:192.168.1.193
vip:192.168.1.200
web:192.168.1.187:80
一:安装过程,在192.168.1.192上:
keepalived的安装:
#tar -zxvf keepalived-1.1.17.tar.gz
#ln -s /usr/src/kernels/2.6.18-128.el5-i686/ /usr/src/linux
#cd keepalived-1.1.17
#./configure --prefix=/ --mandir=/usr/local/share/man/ --with-kernel-dir=/usr/src/kernels/2.6.18-128.el5-i686/
#make &&
#cd /etc/keepalived/
#mv keepalived.conf
#vi keepalived.conf
! Configuration File for keepalived
vrrp_script chk_http_port {
global_defs {
router_id LVS_DEVEL
}
vrrp_instance VI_1 {
state MASTER
interface eth0
virtual_router_id 51
priority 150
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
track_script {
chk_http_port
}
virtual_ipaddress {
192.168.1.200
}
#vi /etc/keepalived/check_haproxy.sh
#!/bin/bash
A=`ps -C haproxy --no-header |wc -l`
if [ $A -eq 0 ];then
fi
#chmod 755 /etc/keepalived/check_haproxy.sh
haproxy的安装(主备都一样):
#tar -zxvf haproxy-1.4.9.tar.gz
#cd haproxy-1.4.9
#make TARGET=linux26 PREFIX=/usr/local/haproxy install
#cd /usr/local/haproxy/
#mkdir conf logs
#cd conf
#vi haproxy.cfg
global
log 127.0.0.1 local3 info
maxconn 4096
user nobody
group nobody
daemon
nbproc 1
pidfile /usr/local/haproxy/logs/haproxy.pid
defaults
maxconn 2000
contimeout 5000
clitimeout 30000
srvtimeout 30000
mode http
log
log 127.0.0.1 local3 info
stats uri /admin?stats
option forwardfor
frontend http_server
bind :80
log global
default_backend info_cache
acl test hdr_dom(host) -i test.domain.com
use_backend cache_test if test
backend info_cache
#balance roundrobin
balance source
option httpchk HEAD /haproxy.txt HTTP/1.1\r\nHost:192.168.1.187
server inst2 192.168.1.187:80 check inter 5000 fall 3
backend cache_test
balance roundrobin
#balance source
option httpchk HEAD /haproxy.txt HTTP/1.1\r\nHost:test.domain.com
server inst1 192.168.1.187:8000 check inter 5000 fall 3
二:再两台机器上都分别启动:
/etc/init.d/keepalived start
三:测试:
1.再两台机器上分别执行ip add
主: eth0:
备: eth0: