nginx_pid问题

最新推荐文章于 2025-03-30 21:28:58 发布

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最新推荐文章于 2025-03-30 21:28:58 发布

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分类专栏： # Nginx 文章标签： nginx linux bash

本文链接：https://blog.youkuaiyun.com/root_zhb/article/details/131228236

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文章描述了一位用户在访问测试环境时遇到NS_ERROR_CONNECTION_REFUSED错误，发现nginx进程异常且无法通过nginx-sreload命令正常重载配置。用户手动启动nginx并检查配置文件无误后，通过nginx-t测试成功，并通过ps命令验证nginx进程恢复正常运行状态。

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问题

访问测试环境一直报错 NS_ERROR_CONNECTION_REFUSED
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现象

使用ps查看，只能看到一条nginx进程

[root@iZwz918g1z0sb8tcwfjri3Z sbin]# ps -ef|grep nginx
root      6772  4449  0 12:12 pts/1    00:00:00 grep --color=auto nginx

使用 ./nginx -s reload 重新加载配置文件，注意此处invalid PID number，目录 /usr/local/nginx/logs 中 PID文件大小为0k

[srm-test@iZwz918g1z0sb8tcwfjri3Z ~]$ cd /usr/local/nginx/sbin
[srm-test@iZwz918g1z0sb8tcwfjri3Z sbin]$ ./nginx -s reload
nginx: [alert] could not open error log file: open() "/usr/local/nginx/logs/error.log" failed (13: Permission denied)
2023/06/15 14:16:21 [notice] 14734#0: signal process started
2023/06/15 14:16:21 [error] 14734#0: invalid PID number "" in "/usr/local/nginx/logs/nginx.pid"

解决

[root@iZwz918g1z0sb8tcwfjri3Z usr]# cd local/nginx
[root@iZwz918g1z0sb8tcwfjri3Z nginx]# /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf
[root@iZwz918g1z0sb8tcwfjri3Z nginx]# cd sbin/
[root@iZwz918g1z0sb8tcwfjri3Z sbin]# ll
total 6036
-rw-r--r-- 1 root root       2 Jun 15 12:09 access.log
-rwxr-xr-x 1 root root   16930 Mar 16  2020 dso_tool
-rwxr-xr-x 1 root root 6153752 Mar 16  2020 nginx

注意此处，下面这种情况才算是重启成功

[root@iZwz918g1z0sb8tcwfjri3Z sbin]# ./nginx -t
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful

注意：查出来三条才算是重启成功

[root@iZwz918g1z0sb8tcwfjri3Z sbin]# ps -ef | grep nginx
root     15536     1  0 14:28 ?        00:00:00 nginx: master process /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf
nobody   15620 15536  0 14:30 ?        00:00:00 nginx: worker process
root     15638 15006  0 14:30 pts/1    00:00:00 grep --color=auto nginx

在这里插入图片描述