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For example, we often validate forms, such as the registration login dialog box. We need to validate before logging in: for example, there are the following logics:歪在虎皮椅上的何老将军猛然挺身，眼中爆出异样神采，沉声道：说得好。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.翘儿看着这货兴高采烈的样子微露嗔容，就欠撵。小女娃骂道：笨狗。Netflix提前宣布续订《女子监狱》（Orange Is The New Black）第三季13集。一九三七年底的扬州古城，烟花垂泪堤柳哀号，日本侵略者的铁蹄踏碎了一个个温馨的水乡梦。那一夜，人称“修脚小神刀”的华扬生一把飞刀掠过，救下了正被日本兵追杀的国民党团座安骏雄。扬州首富桂之章的小女儿桂玉蓉是安骏雄的恋人，却在一次偶患脚疾时爱上了为她解除极度脚痛的小师傅华扬生。于是，已经是安骏雄救命恩人的修脚小神刀同时又成为了安骏雄的情敌，一场乱世情爱便被人性道义善恶叛逆扭曲得面目全非了。