37. 分布式CCAAPP难题
Any networked shared-data system can
have at most two of three desirable
properties:
consistency (C) equivalent to having a single
up-to-date copy of the data;
high availability (A) of that data (for
updates); and
tolerance to network partitions (P).
如果发生了网络分区,高可用性和数据一致性不
可兼得