天蓝色的前门-为什么我们需要向后端池添加多个后端
[英]azure front door - why do we need to add multiple backends to the backend pool
问题描述
I'm a little confused about deployment architecture of Azure Front Door. 
我对Azure前门的部署体系结构有些困惑。 for a backend pool, we can add multiple backends (typically from different regions), 对于后端池，我们可以添加多个后端（通常来自不同区域），
such as: 如：
myappbackendpool -> myappbackendpool->
appbackend-eastus.appservice.com
appbackend-eastus.appservice.com appbackend-westtus.appservice.com
appbackend-westtus.appservice.com appbackend-europ.appservice.com
appbackend-europ.appservice.com
my question is, as the Front Door will eventually be deployed globally, why do we need those "backends" from different regions? 我的问题是，随着前门最终将在全球范围内部署，为什么我们需要来自不同地区的那些“后端”？ Any reasons for that except for the healthy/backup considerations? 除了健康/备份方面的考虑之外，还有其他原因吗？
1 个解决方案
解决方案1
1 已采纳 2019-04-26 09:14:16
Front Door is just a caching and Load balancing solution. 前门只是一个缓存和负载平衡解决方案。 What if you have only one App Service and if it fails then then entire service will be down. 如果您只有一个应用程序服务，但如果失败，则整个服务将关闭。
Also , another important aspect is, POP servers are located throughout the world and if you deployed your App Service in different regions, then POP servers will choose the endpoint which is closest to it. 另外，另一个重要方面是，POP服务器遍布世界各地，如果您将App Service部署在不同的区域，则POP服务器将选择距离它最近的端点。
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