分享程序员开发的那些事...
更新时间：2022-10-14 09:59:13
【问题描述】
更改完nginx.conf文件后，执行/app/nginx/sbin/nginx -s reload命令重新加载配置文件，报以下错误信息：
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nginx: [alert] kill(2480, 10) failed (3: No such process) |
提示没有相关进程。
【解决】
其实这个问题很低级的说，就是我之前压根就没有启动nginx服务，执行/app/nginx/sbin/nginx，开启nginx服务后，重新加载nginx配置，一切正常！
【附录】
nginx帮助信息
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# /app/nginx/sbin/nginx -hnginx version: nginx/1.6.3Usage: nginx [-?hvVtq] [-s signal] [-c filename] [-p prefix] [-g directives]Options: -?,-h : this help
-v : show version and exit
-V : show version and configure options then exit
-t : test configuration and exit
-q : suppress non-error messages during configuration testing
-s signal : send signal to a master process: stop, quit, reopen, reload
-p prefix : set prefix path (default: /app/nginx-1.6.3/)
-c filename : set configuration file (default: conf/nginx.conf)
-g directives : set global directives out of configuration file
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nginx服务管理常用命令
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/app/nginx/sbin/nginx -h 查看nginx帮助信息nginx -s stop, — fast shutdownnginx -s quit, — graceful shutdown 字面意思为优雅的关闭，个人理解应该是安全的关闭吧nginx -s reopen — reopening the log files 重新打开日志文件nginx -s reload — reloading the configuration file 重新加载配置文件# /app/nginx/sbin/nginx -t 检查配置nginx: the configuration file /app/nginx-1.6.3/conf/nginx.conf syntax is oknginx: configuration file /app/nginx-1.6.3/conf/nginx.conf test is successful |
关闭nginx服务
# /app/nginx/sbin/nginx -s stop
# pkill -9 nginx 强制关闭
ps -ef |head -1;ps -ef |grep nginx
UID PID PPID C STIME TTY TIME CMD
root 2114 1 0 00:39 ? 00:00:00 nginx: master process /app/nginx/sbin/nginx
nginx 2115 2114 0 00:39 ? 00:00:00 nginx: worker process
root 2126 1660 0 00:41 pts/0 00:00:00 grep nginx
# kill 2114
# pgrep nginx
# /app/nginx/sbin/nginx
# pgrep nginx
2150
2151
ps -A | grep nginx | grep -v grep | awk '{ print $1; }' |head -1 |xargs -L 1 kill -QUIT
使用xargs -L 1确保每次只取一行内容，然后使用kill -QUIT关闭nginx
启动nginx服务
/app/nginx/sbin/nginx
# ps -ef |head -1;ps -ef |grep nginx
UID PID PPID C STIME TTY TIME CMD
root 2157 1 0 00:47 ? 00:00:00 nginx: master process /app/nginx/sbin/nginx
nginx 2158 2157 0 00:47 ? 00:00:00 nginx: worker process
root 2174 1660 0 00:52 pts/0 00:00:00 grep nginx
# kill -HUP 2157
#
# pgrep nginx
2157
2175
对配置文件更改后，可使用kill -HUP命令在不停止原有服务的情况下重新加载配置，有点nginx -s reload的味道。