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《多样的儿媳》讲述一对冤家双胞胎姐妹恩星(咸恩静 饰)与金星(李珠妍 饰)成为宿仇对家的儿媳后重逢发生的冤家故事[2]  。在剧中，恩静将饰演从小就与异卵双胞胎姐姐在妈妈的差别待遇下长大的出版社职员兼代笔作家黄恩星（音译）。State mode and policy mode are like twins. They both encapsulate a series of algorithms or behaviors. Their class diagrams look almost identical, but their intentions are very different, so they are two very different modes. The policy pattern and the state pattern have in common that they both have a context, policies or state classes to which the context delegates the request to executeProbability is greatly reduced = probability is 100%In the last article, we explained Redis' master-slave cluster mode in detail. In fact, the configuration of this cluster mode is very simple. It only needs to be configured on Slave's nodes. The configuration of Master's master node does not need to be changed. However, one thing is that the persistent configuration of Master and Slave nodes should be consistent as far as possible, otherwise there will be strange problems. Starting today, we will begin to talk about the second mode of Redis cluster mode. That is, the "Sentinel" mode, which was provided from version 2.6 of Redis, but the mode of this version was unstable at that time. The Sentinel mode did not stabilize until version 2.8 of Redis. In the production environment, if you want to use the Sentinel mode of Redis, you will try to use the version after version 2.8 of Redis. Whether it is master-slave mode or sentinel mode, both modes have a problem and cannot be expanded horizontally, and the high availability of these two modes will be limited by the memory of Master master node. Another point is that the configuration of Sentinel mode is not simple or even complicated, so neither mode is recommended in industrial scenes. If you want to use it, you must have solutions to related problems to avoid subsequent problems.These things, in fact, are not difficult, but they are abstract and not easy to understand as a whole. It is suggested that readers: according to the relationship diagram, build a new project, write their own code (or refer to my code), and go through it according to the general idea, so as to understand its thoughts and understand it easily!Note: The integration of the three certificates requires the simultaneous change of the organization code number and CA certificate in the system. If the bid has been submitted, do not change it before the bid is released (non-electronic bid will not be affected).1. As for the data set provided in the Kaggle competition, it is equal to everyone;