参考
https://www.cnblogs.com/rgcLOVEyaya/p/RGC_LOVE_YAYA_1003days.html
https://blog.csdn.net/Seraphimon/article/details/84944693
https://blog.csdn.net/wutengfei_java/article/details/100699538
https://blog.csdn.net/wutengfei_java/article/details/100699538
nodejs redlock实现库 redlock https://www.npmjs.com/package/redlock