The floating resource address for this cluster will reside on one of the LVS director instances at any given time. 此集群的浮动资源地址在一个给定时间将位于某个LVS控制器实例上。
For added security, you should limit traffic across firewalls to only the floating IP address that is passed between the LVS directors. 为了更加安全,您应该限制穿过防火墙的通信量,只允许浮动IP地址在LVS控制器之间传递。
A vote is taken, followed by the ifconfig commands that are issued to claim the floating resource IP address. 获取投票后,发出的ifconfig命令索要浮动资源IP地址。
The floating service address must span two or more discrete hardware instances in order to continue operation with the loss of one physical machine. 浮动服务地址必须跨越两个或多个离散的硬件实例,以便在一个物理机器连接丢失的情况下继续操作。
Next, to tell the directors to relay incoming HTTP requests to the HA floating IP address on to the realservers, use the ipvsadm command. 接下来,要通知控制器将引入的HTTP请求传递给HA浮动IP地址,接着再传给realserver,使用ipvsadm命令。
With the choice of configuration policy selected earlier, as long as quorum can be established and at least one node is eligible, the floating resource IP address will remain operational. 因为先前选中了配置策略,只要可以建立quorum,并且至少有一个节点合格,那么浮动资源IP地址就保持正常运作。
The next step is to take the floating resource IP address and build on it. 下一步是获取浮动资源IP地址并在其上进行构建。
In contrast, log results for cluster members that did receive the floating resource IP address are as follows 相反,接收了浮动资源IP地址的集群成员的日志结果如下
In addition, in order to provide smooth access of services, the system uses ARP cheat to achieve the floating IP address shared between Installer Node and Failover node. 此外,为了给用户提供平滑的服务访问,本系统采用ARP欺骗方式实现了共享于主备管理节点间的浮动IP地址机制。