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6.5. 配置外部负载平衡
一个 Overcloud 会使用多个 Controller 来组成一个高可用行集群,从而确保 OpenStack 服务获得最大的操作性能。另外,集群还可以实现对 OpenStack 服务访问的负载平衡(在各个 Controller 节点间平衡分配访问操作,减少每个节点的服务器负载)。这个功能也可以通过使用一个外部的负载平衡系统来实现。例如,一个机构可以选择使用自己的、基于硬件的负载平衡系统来在 Controller 节点间分配访问流量。
如需了解更多配置外部负载平衡系统的信息,请参阅 External Load Balancing for the Overcloud。

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