当故障转移发生时，一个次服务器将被选择作为新的代理主服务器，请求处理像前面一样继续进行。
When failover happens, a secondary server will be chosen as the new acting primary, and request processing continues as before.
此过程用于处理后续请求，通常称为故障转移。
This process is commonly referred to as failover and occurs on subsequent requests.
自动故障转移支持：因为可以使用几个克隆来处理请求，所以故障破坏吞吐量和可靠性的可能性就减小了。
Automatic failover support: Because several clones are available to handle requests, it is less likely that failures will damage throughput and reliability.
有了应用程序故障转移，任何未处理的请求(来自任何来源)将在代理主服务器上被处理。
With application failover, any unprocessed requests (from any source) will be processed on the acting primary server.
有了应用程序故障转移，任何未处理的请求(来自任何来源)将在代理主服务器上被处理。
With application failover, any unprocessed requests (from any source) will be processed on the acting primary server.
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