查看nginx error错误，发现上传接口报以下错：
2019/10/10 19:58:25 [error] 299784#0: *5967188 readv() failed (104: Connection reset by peer) while reading upstream, client: 59.34.155.7, server: xxxxxxxx, request: "POST /stream/tracking/file HTTP/1.1", upstream: "http://xxxxxxxx/stream/tracking/file", host: "xxxxxxxx"
这种错误日志不多，第一感觉就是上传文件过大，传输时间过长，然后连接被中断。