标签：span eve ipvsadm ret tmp tcp weight make 检测
场景：
环境中有两台httpd服务器，一台做主，一台做备用；平时只用主向外提供http服务；当主宕机后，keepalived把vip绑定到备机上去，这样就由备机提供http服务了。
**keepalvied 这个软件还是更新的比较快的，主要问题再于它的文档并没能跟上来，不同版本之间的差别比较大，我这里用的是1.2.13版
【0】环境说明
主机ip 系统版本 keepavlied版本
192.168.80.131 centos6.6 keepalived-1.2.13
192.168.80.132 centos6.6 keepalived-1.2.13
【1】安装keepalived 所需要的依赖
yum -y install gcc ipvsadm openssl-devel popt-devel kernel-devel
**由于keepalived 通常来说是和lvs配合用的，虽然这里还用不着lvs，但是我还是把ipvsadm安装上了
【2】编译安装keepalived
tar -xzvf keepalived-1.2.13.tar.gz cd keepalived-1.2.13 ./configure --prefix=/usr/local/keepalived --with-kernel-dir=/usr/src/kernels/2.6.32-504.el6.x86_64 make make install
【3】修改192.168.80.131主机上的/usr/local/keepalived/etc/keepalived.conf
! Configuration File for keepalived global_defs { router_id LVS_001B #router_id 这要个唯一 } vrrp_instance VI_1 { state MASTER interface eth0 virtual_router_id 51 #这个virtual_router_id 在两台机器上要相同 priority 150 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 192.168.80.80/24 } } virtual_server 192.168.80.80 80 { delay_loop 2 lb_algo rr lb_kind DR persistence_timeout 60 protocol TCP real_server 192.168.80.131 80 { weight 1 notify_down /tmp/stop_keepalive.sh #当检测到real_server 宕机的时候就会执行这个脚本 TCP_CHECK { connect_port 80 connect_timeout 3 nb_get_retry 2 delay_before_retry 1 } } }
【4】修改192.168.80.132主机上的/usr/local/keepalived/etc/keepalived.conf
! Configuration File for keepalived global_defs { router_id LVS_001B } 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 { 192.168.80.80/24 } } virtual_server 192.168.80.80 80 { delay_loop 2 lb_algo rr lb_kind DR persistence_timeout 60 protocol TCP real_server 192.168.80.132 80 { weight 1 notify_down /tmp/stop_keepalive.sh TCP_CHECK { connect_port 80 connect_timeout 3 nb_get_retry 2 delay_before_retry 1 } } }
【5】脚本/tmp/stop_keepalived.sh的内容如下：
#!/bin/bash
pkill keepalived
【6】启动keepalived程序
nohup /usr/local/keepalived/sbin/keepalived -D -f /usr/local/keepalived/etc/keepalived/keepalived.conf &
标签：span eve ipvsadm ret tmp tcp weight make 检测
原文地址：http://www.cnblogs.com/JiangLe/p/6076834.html
