为了使负载均衡器以您的应用程序真实dns名工作，将您应用程序DNS记录从A修改为指向负载均衡器dns名的CNAME。
To make the load balancer work for the real DNS name of your application, change your application's DNS record from an a record to a CNAME pointing at the DNS name of the load balancer.
如果各数据库分区存储的记录数不均，就会导致不均衡的存储需求和性能问题。
If records are stored unequally across the database partitions, it can result in disproportional storage requirements and performance problems.
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