参文1:https://blog.csdn.net/jackpk/article/details/54632468
参文2:reverse proxy - How can I stop nginx from retrying PUT or POST requests on upstream server timeout? - Server Fault

参文1:https://blog.csdn.net/jackpk/article/details/54632468
参文2:reverse proxy - How can I stop nginx from retrying PUT or POST requests on upstream server timeout? - Server Fault