强制停止
代码语言：javascript复制[root@h102 logs]# ps faux | grep nginx
root 11974 0.0 0.0 103256 828 pts/0 S 15:45 0:00 _ grep nginx
root 11971 0.0 0.0 24316 680 ? Ss 15:45 0:00 nginx: master process /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf
nobody 11972 0.0 0.0 24728 1248 ? S 15:45 0:00 _ nginx: worker process
[root@h102 logs]# kill -9 11971
[root@h102 logs]# ps faux | grep nginx
root 11976 0.0 0.0 103256 828 pts/0 S 15:45 0:00 _ grep nginx
nobody 11972 0.0 0.0 24728 1340 ? S 15:45 0:00 nginx: worker process
[root@h102 logs]#强制停止比较暴力，会导致worker进程仍然停留在系统中，并且还能被访问
检查配置
重启之前最好先检查一下配置，避免由于配置不合理而导致的服务不可用
代码语言：javascript复制[root@h102 nginx]# sbin/nginx -h
nginx version: nginx/1.9.5
Usage: nginx [-?hvVtTq] [-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
-T : test configuration, dump it 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: /usr/local/nginx/)
-c filename : set configuration file (default: conf/nginx.conf)
-g directives : set global directives out of configuration file
[root@h102 nginx]# sbin/nginx -t -c conf/nginx.conf
nginx: [emerg] unexpected end of file, expecting ";" or "}" in /usr/local/nginx/conf/nginx.conf:120
nginx: configuration file /usr/local/nginx/conf/nginx.conf test failed
[root@h102 nginx]# sbin/nginx -t -c conf/nginx.conf
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
[root@h102 nginx]#
