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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.钢琴大师变身老戏骨，郎朗师妹首战影视圈；韩国小鲜肉倾力加盟，金童玉女演绎传奇跨国恋；绝代佳丽国色天香，骨灰美女争芳斗艳；学习《老炮儿》好榜样，导演客串屌丝男！中国校花，揭示神秘符号；韩国校草，掀起动感热浪；友情与爱情，交相辉映；古典与时尚，珠联璧合！让我们一起再看流星雨——《校花时代》。贞操名节是女人安身立命的根本.一个命运多舛的女子,几经蹂躏,强暴却成为法律追踪的逃兔人?凄婉悲怆,发人深省. 当受到侵犯时,她想到法,冤情要昭雪,而代价是一生.不再流泪的女人影片描述: 贞操名节是女人安身立命的根本.一个命运多舛的女子,几经蹂躏,强暴却成为法律追踪的逃兔人?凄婉悲怆,发人深省. 当受到侵犯时,她想到法,冤情要昭雪,而代价是一生.亨利和法院去首脑会议上与法国签署条约。可以理解的是，紧张局势很高，两位国王的脾气不止一次爆发。与此同时，亨利迎娶了一个新的情妇，名叫玛丽·博林。他很快就厌倦了她，父亲把她妹妹安妮告上法庭，告诉她要想办法维护国王的利益。Press Ctrl + Alt + A or Escape (on the Mac + Option + A or Escape).　 大正25年，帝都东京。For example, some common outsourcing companies receive a project, Then the received project may be the person in charge of the project or the manager level of the company. After receiving the project, the manager does not develop it himself. Leave it directly to the project manager for development, The project manager is certainly not willing to develop it himself. Oh, It will hand over the project to the following code farmers to do, So the coder handles it, If the code farmers don't handle it, Then the project may be directly suspended, but after the final completion, the outsourcing company does not know who developed that part of these projects. It does not know or care about it. What it cares about is that the project has been handed over to the outsourcing company and has been developed without any bugs. Therefore, the advantages of the responsibility chain mode lie here: