redis哨兵机制

参考文章：

https://blog.csdn.net/Ever_Ardour/article/details/119547363

https://blog.csdn.net/qq_26368063/article/details/99971859

https://blog.csdn.net/qq_39230153/article/details/121524461

https://blog.csdn.net/qq_44299529/article/details/123256648

https://blog.csdn.net/MssGuo/article/details/127163216

https://cloud.tencent.com/developer/article/2124382