新书求收藏求推荐。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.传说宿世情缘是轮回转世的凄美见证，前世未了缘，今世有缘便能再续。一块丝布将命运相连的众人牢牢束缚，前尘往事缓缓流转，娓娓细述人世爱痴贪嗔……The rules for PREROUTING can exist in: raw table, mangle table, nat table."Where I hope the company can improve""This time we can get that position out of danger, All by one radio station, At that time, we used rifle butts, stones, bayonets and even belts and helmets to fight these rats hand to hand. But I can't, There are too many of them, And you can take care of the earth and not the sky, Either killed by a big mouse or stung by a big wasp, Even some soldiers were anxious and hugged with big rats. And bite it with his teeth, However, this will not change the overall situation at position 149, which is very unfavorable to us. So it didn't last long, Seeing that the position was about to fall, The impression is that a person in our company, Should be a company correspondent, He sent the message directly to the back on the radio. Request the artillery to cover position 149, To live or die with the position in the way of "firing at me", Because I was very close to him, So I could hear what he was shouting, I thought I wanted to die bravely, But in the end, Through the superior order he conveyed, The response we got was to evacuate us to a hillside due north of position 149 in 3 minutes. This means that we have to give up the defense of the main position for the time being. To be honest, He had already killed the red eye, No one wants to withdraw, Watching his comrade-in-arms get along with him day and night be stung to death by a big wasp, I was killed by a big mouse, and I was always left with a dead body. All of them were bent on killing one more one to avenge their comrades. I remember very clearly that I saw with my own eyes that at least three comrades had been bitten off their arms and necks by that big mouse. One of them had his stomach bitten through and his intestines flowed all over the floor, but they were still fighting.
