拓撲如下
ip地址分配
magent1:192.168.154.131 magent2:192.168.154.132 memcache主：192.168.154.141 memcache從：192.168.154.142
軟件包（所有軟件直接下載到/root/下）
magent上：libevent-2.0.22-stable.tar.gz、magent-0.6.tar.gz、keepalived-1.4.4.tar.gz 下載地址： 下載地址： 下載地址：http://www.keepalived.org/software/ memcache上：libevent-2.0.22-stable.tar.gz、memcached-1.4.33.tar.gz 下載地址：http://memcached.org/downloads
memcache上（主、從上的命令都一樣）
tar zxf libevent-2.0.22-stable.tar.gz tar zxf memcached-1.4.33.tar.gz cd libevent-2.0.22-stable ./configure --prefix=/usr/ make && make install cd ../memcache-1.4.33 ./configure --prefix=/usr/local/memcached --with-libevent=/usr/ make&& make install ##memcache主## memcached -d -m 1024 -u root -l 192.168.154.141 -p 11211 ##memcache從## memcached -d -m 1024 -u root -l 192.168.154.142 -p 11211 firewall-cmd --add-port=11211/tcp --permanent firewall-cmd --reload
可通過ss或netstat命令查看memcache是否正常啓動
ss -lnpt | grep memcache netstat -anpt | grep memcache
magent上（1和2配置一樣）
tar zxf libevent-2.0.21-stable.tar.gz cd libevent-2.0.21-stable ./configure --prefix=/usr/ make && make install cd ~ mkdir /usr/magent tar zxf magent-0.6.tar.gz -C /usr/magent
vim /usr/magent/ketama.h
#添加在文件開頭 #ifndef SSIZE_MAX #define SSIZE_MAX 32767 #endif
注意：下面兩個文件libm.so、libevent-1.4.so.2如果和我的所在目錄不同，可通過find命令查找，然後在ln -s創建軟鏈接即可
ln -s /usr/lib64/libm.so /usr/lib64/libm.a ln -s /usr/lib64/libevent-1.4.so.2 /usr/lib64/libevent.a
cd /usr/magent /sbin/ldconfig sed -i "s#LIBS = -levent#LIBS = -levent -lm#g" Makefile make cp magent /usr/bin/ ##magent1## magent -u root -n 51200 -l 192.168.154.131 -p 12000 -s 192.168.154.141:11211 -b 192.168.154.142:11211 ##magent2## magent -u root -n 51200 -l 192.168.154.132 -p 12000 -s 192.168.154.141:11211 -b 192.168.154.142:11211 ps -elf | grep magent ##檢測magent是否正常運行
yum -y install keepalived
magent1的keepalived配置vim /etc/keepalived/keepalived.conf
global_defs {
router_id M1
}
vrrp_instance VI_1 {
state MASTER
interface eth0
virtual_router_id 51
priority 100
advert_int 1 authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.154.100
}
}
magent2的keepalived配置vim /etc/keepalived/keepalived.conf
global_defs {
router_id M2
}
vrrp_instance VI_1 {
state BACKUP
interface eth0
virtual_router_id 51
priority 100
advert_int 1 authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.154.100
}
}
systemctl start keepalived systemctl enable keepalived
部署完成，你可以直接通過Telnet連接keepalived的vip，以連接到memcahe，操作一些數據，然後查看，驗證集羣的可用性。這裏不一一贅述了。