openstack下面的虛擬機使用keepalived,同網斷無法連通vip
阿新 • • 發佈:2019-02-23
interface check cati 負載均衡 情況 The Opens rtu har
最近,有遇到過一次比較尷尬的情況,特此記錄一下。
有兩臺同一個網段的虛擬機,上面分別安裝源碼包的keepaliaved用了跟數據庫做負載均衡,兩臺機器的防火墻都關閉了,selinux的配置也設置成了disabled。
但是,同一網段內,外部服務器無法連通vip,具體的配置如下。
master機器的keepalived配置
cat keepalived.conf
global_defs { notification_email { [email protected] } smtp_server 127.0.0.1 smtp_connect_timeout 30 router_id NodeA } vrrp_script chk { script "/apps/sh/check.sh" interval 2 weight -2 } vrrp_instance VI_1 { state MASTER interface eth1 virtual_router_id 182 priority 100 advert_int 1 smtp alert track_interface { eth1 } track_script { chk } authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 192.168.1.2 dev eth1 label eth1:1 } notify_fault "/apps/sh/keepalived.sh stop" }
backup機器的keepalived配置
cat keepalived.conf
global_defs { notification_email { [email protected] } smtp_server 127.0.0.1 smtp_connect_timeout 30 router_id NodeB } vrrp_script chk { script "/apps/sh/check.sh" interval 2 weight -2 } vrrp_instance VI_1 { state BACKUP interface eth1 virtual_router_id 182 priority 99 advert_int 1 smtp alert track_interface { eth1 } track_script { chk } authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress {
192.168.1.2 dev eth1 label eth1:1 }
notify_fault
"/apps/sh/keepalived.sh stop" }
}
啟動keepalived的命令都是
/apps/svr/keepalived/sbin/keepalived -D -S 1 -P -f /apps/conf/keepalived/keepalived.conf -p /apps/run/keepalived/keepalived.pid -r \ /apps/run/keepalivekeepalived_vrrp.pid
目前的狀態是 192.168.1.0的網斷的除了keepalived的master機以外,其它的服務器都不能ping通 vip 192.168.1.2,但是192.168.1..0網段內的其它機器是互通的,檢查配置沒有發現問題,沒有第三方防火墻存在。
最終有人告知,是因為虛擬機是屬於openstack下面的機器,所以需要物理機上面講vip的mac地址跟實ip的mac地址設置一樣才可以正常訪問。
具體如何操作就不知道了,但是歸根結底不是keepalived本身的問題。
openstack下面的虛擬機使用keepalived,同網斷無法連通vip