keepalived03:资源抢占问题
Keepalived构建高可用服务器,有MASTER,BACKUP之分,在MASTER主机宕掉之后,BACKUP主机会接替
所有的任务,但是当MASTER主机修复后,会抢占资源,这样就是不必要的切换
如何让MASTER恢复后不抢占BACKUP的资源:将两个主机均设置成BACKUP,因为不抢占只支持BACKUP模式
那个成为MASTER,靠优先级决定
! Configuration File for keepalived
global_defs {
notification_email {
oscersong007@gmail.com
}
notification_email_from keepalived@localhost
router_id LVS_DEVEL
}
vrrp_sync_group VGM {
group {
}
}
vrrp_script chk_http_port {
script "killall -0 httpd"
}
vrrp_instance VI_1 {
state BACKUP #BACKUP
authentication {
auth_type PASS
auth_pass westos
}
track_interface {
}
virtual_ipaddress {
}
track_script {
chk_http_port
}
}
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