一.问题现象和日志报错 之前在项目实现了excel导入导出:django导入导出excel实践,之前一直稳定运行,突然得知导出用户信息时出现nginx错误报告: 查看nginx日志,报错信息如下所示: upstream timed out (: Connection timed out) while reading response header from upstream, client: 119.157.163.211, server: localhost, request: "GET /x…