CLOSE_WAIT问题讨论

1、https://cloud.tencent.com/developer/article/1347610
2、https://blog.huoding.com/2016/01/19/488
3、https://mp.weixin.qq.com/s?__biz=MzI4MjA4ODU0Ng&mid=402163560&idx=1&sn=5269044286ce1d142cca1b5fed3efab1&3rd=MzA3MDU4NTYzMw&scene=6#rd