If the instance that provides the load balancing fails, the whole system can become unavailable until the dynamic DNS maps the domain to another EC2 instance.
如果提供负载均衡的这个实例出现故障，在动态dns映像到另一个EC2实例前，整个系统就不可用了。
If the instance that provides the load balancing fails, the whole system can become unavailable until the dynamic DNS maps the domain to another EC2 instance.
如果提供负载均衡的这个实例出现故障，在动态dns映像到另一个EC2实例前，整个系统就不可用了。
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