今天在用uwsgi+nginx在部署flask应用时,遇到502的错误,vim /var/log/nginx/error.log
查看nginx的错误日志,提示如下错误信息:
2018/07/22 00:46:36 [crit] 15890#15890: *74 connect() to unix:/root/jianshuvue/jianshu.sock failed (13: Permission denied) while connecting to upstream, client: 120.42.13.98, server: jianshu.weiweiblog.cn, request: "GET /favicon.ico HTTP/1.1", upstream: "uwsgi://unix:/root/jianshuvue/jianshu.sock:", host: "jianshu.weiweiblog.cn", referrer: "http://jianshu.weiweiblog.cn/jianshu/67eb7ed414d3"
Permission denied,一看就知道是权限出了问题,通过ps -ef | grep nginx
,查看nginx的进程信息:
root 15889 1 0 00:01 ? 00:00:00 nginx: master process /usr/sbin/nginx -g daemon on; master_process on;
www-data 15890 15889 0 00:01 ? 00:00:00 nginx: worker process
root 16795 15654 0 00:48 pts/3 00:00:00 grep --color=auto nginx
发现nginx进程的用户是nginx,而我们创建/root/jianshuvue/jianshu.sock文件的用户是root,因此,只要把nginx的进程user改为root即可,vim /etc/nginx/nginx.conf:
# user www-data; user root; worker_processes auto; pid /run/nginx.pid;
之后,/etc/init.d/nginx restart
重启nginx,就可以正常访问网站了。
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