ubuntu下配置nginx+keepalived做HA(续)

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　　作者注：继上篇中没有测试，由于初涉及相关技术，下面测试中的问题记录一下，主要将通过/var/log/messages中的日志来。
　　问题1：Sep 18 22:20:23 ubuntu Keepalived_vrrp: IPVS: Can't initialize ipvs: Permission denied (you must be root)
解决办法：直接su至root用户，启动keepalived，可快速解决问题。
　　问题2：Sep 19 02:57:51 ubuntu Keepalived_healthcheckers: IPVS: Can't initialize ipvs: Protocol not available
解决办法：由于没有安装或没有启用ipvs功能，本人系统中没有启用ipvs。
　　测试结果（部分日志）：
Sep 19 04:01:55 ubuntu Keepalived_vrrp: Using MII-BMSR NIC polling thread...
Sep 19 04:01:55 ubuntu Keepalived_vrrp: Registering Kernel netlink reflector
Sep 19 04:01:55 ubuntu Keepalived_vrrp: Registering Kernel netlink command channel
Sep 19 04:01:55 ubuntu Keepalived_vrrp: Registering gratutious ARP shared channel
Sep 19 04:01:55 ubuntu Keepalived_vrrp: Opening file '/etc/keepalived/keepalived.conf'.
Sep 19 04:01:55 ubuntu Keepalived_vrrp: Configuration is using : 37980 Bytes
Sep 19 04:01:55 ubuntu Keepalived_vrrp: VRRP_Instance(VI_1) Entering BACKUP STATE
Sep 19 04:02:05 ubuntu Keepalived_vrrp: VRRP_Instance(VI_1) Transition to MASTER STATE
Sep 19 04:02:08 ubuntu Keepalived_vrrp: VRRP_Instance(VI_1) Entering MASTER STATE
Sep 19 04:02:08 ubuntu Keepalived_vrrp: Netlink: skipping nl_cmd msg...
Sep 19 04:03:13 ubuntu Keepalived_vrrp: VRRP_Instance(VI_1) Received higher prio advert
Sep 19 04:03:13 ubuntu Keepalived_vrrp: VRRP_Instance(VI_1) Entering BACKUP STATE

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