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