upstream prematurely closed connection while reading response header from upstream分析与解决
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背景
迁移一个nginx+uwsgi+django的项目,启动后,访问测试报错502,后台的nginx打印错误:upstream prematurely closed connection while reading response header from upstream
问题分析解决
- 网上一堆教程,看得晕头转向,有要调试nginx配置参数的,有重启后台的等等
- 但是照着试了一下,全都不管用,最后静下心来找文档看,发现这个错误的根本原因其实就是nginx的后端的服务有问题,具体参考https://wenku.baidu.com/view/4947d8d685254b35eefdc8d376eeaeaad1f31601.html
- 这篇文档写得相当不错,极具实战价值。
- 最后检查uwsgi的问题,原来是其配置文件中少了一项配置,plugin=python,加上重启就正常了,网上说这项配置如果是pip安装的uwsgi就可以去掉,不过在这个工程中貌似不行,具体原因有待研究。
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