04_Nginx命令行参数，控制信号，Nginx启动、停止、重启命令，04_nginxnginx

文章由LinuxBoy分享于2019-07-11 07:07:25热评（360）

04_Nginx命令行参数，控制信号，Nginx启动、停止、重启命令，04_nginxnginx

Nginx支持一下命令行参数

-? | -h 打印出命令行参数的帮助

[root@localhost nginx]# ./nginx -?

nginx version: nginx/1.8.0

Usage: 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: /usr/local/nginx/)

-c filename : set configuration file (default: /usr/local/nginx/nginx.conf)

-g directives : set global directives out of configuration file

[root@localhost nginx]# ./nginx -h

nginx version: nginx/1.8.0

Usage: 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: /usr/local/nginx/)

-c filename : set configuration file (default: /usr/local/nginx/nginx.conf)

-g directives : set global directives out of configuration file

-c file 使用可用的配置文件而不是默认的文件

[root@localhost nginx]# pwd

/usr/local/nginx

[root@localhost nginx]# ls

client_body_temp fastcgi_temp mime.types.default sbin uwsgi_temp

conf html nginx scgi_params win-utf

fastcgi.conf koi-utf nginx.bak scgi_params.default

fastcgi.conf.default koi-win nginx.conf scgi_temp

fastcgi_params logs nginx.conf.default uwsgi_params

fastcgi_params.default mime.types proxy_temp uwsgi_params.default

[root@localhost nginx]# ./nginx -c nginx.conf

[root@localhost nginx]#

-t 不运行，而仅仅测试配置文件。Nginx将检查配置文件的语法的正确性，并尝试打开配置文件中所有引用的文件。

[root@localhost nginx]# ./nginx -t

nginx: the configuration file /usr/local/nginx/nginx.conf syntax is ok

nginx: configuration file /usr/local/nginx/nginx.conf test is successful

-v显示nginx的版本

[root@localhost nginx]# ./nginx -v

nginx version: nginx/1.8.0

-V显示nginx的版本，编译器版本和配置参数

[root@localhost nginx]# ./nginx -V

nginx version: nginx/1.8.0

built by gcc 4.4.7 20120313 (Red Hat 4.4.7-3) (GCC)

built with OpenSSL 1.0.1c 10 May 2012

TLS SNI support enabled

configure arguments: --sbin-path=/usr/local/nginx/nginx --conf-path=/usr/local/nginx/nginx.conf --pid-path=/usr/local/nginx/nginx.pid --with-http_ssl_module --with-http_realip_module --with-http_addition_module --with-http_stub_status_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_auth_request_module --with-mail --with-mail_ssl_module --with-file-aio --with-http_spdy_module --with-ipv6 --with-pcre=../pcre-8.37 --with-zlib=../zlib-1.2.8 --with-openssl=../openssl-1.0.1c --user=nginx --group=nginx

[root@localhost nginx]#

-s signal 发送一个信号给主进程，这些参数可以以下的参数中的一个：

./nginx –s stop

快速关闭

./nginx –s quit

优雅关闭

./nginx –s reload

重新加载配置文件，使用一个新的worker进程启动一个新的worker进程，优雅的关闭旧的worker进程。

./nginx –s reopen

重新打开日志文件

Nginx控制信号

可以使用信号系统来控制主进程。默认，nginx将其主进程的pid写入到/usr/local/nginx/nginx.pid文件中。通常传递参数给./configure或使用pid指令，来改变文件的位置。

主进程可以处理以下的信号：

TERM,INT

快速关闭

QUIT

从容关闭

HUP

重载配置

用新的配置开始新的工作进程从容关闭旧的工作进程。

USR1

重新打开日志文件

USR2

平滑升级可执行程序

WINCH

从容关闭工作进程

尽管你不币自己操作工作进程，但是，它们也支持一些信号：

TERM,INT

快速关闭

QUIT

从容关闭

USR1

重新打开日志文件

Nginx启动、停止、重启命令

Nginx启动

[root@localhost nginx]# pwd

/usr/local/nginx

[root@localhost nginx]# ls

client_body_temp fastcgi_temp mime.types.default sbin uwsgi_temp

conf html nginx scgi_params win-utf

fastcgi.conf koi-utf nginx.bak scgi_params.default

fastcgi.conf.default koi-win nginx.conf scgi_temp

fastcgi_params logs nginx.conf.default uwsgi_params

fastcgi_params.default mime.types proxy_temp uwsgi_params.default

[root@localhost nginx]# ./nginx

[root@localhost nginx]#

Nginx从容停止命令，等待所有请求结束后关闭服务：

ps –ef | grep nginx

kill –QUIT nginx主进程号

[root@localhost nginx]# ps -ef | grep nginx

root 18252 1 0 15:35 ? 00:00:00 nginx: master process ./nginx

nginx 18253 18252 0 15:35 ? 00:00:00 nginx: worker process

nginx 18254 18252 0 15:35 ? 00:00:00 nginx: worker process

root 18304 14028 0 15:37 pts/0 00:00:00 grep nginx

[root@localhost nginx]# kill -QUIT 18252

[root@localhost nginx]# ps -ef | grep nginx

root 18389 14028 0 15:40 pts/0 00:00:00 grep nginx

[root@localhost nginx]# ./nginx

[root@localhost nginx]# ps -ef | grep nginx

root 18393 1 0 15:40 ? 00:00:00 nginx: master process ./nginx

nginx 18394 18393 0 15:40 ? 00:00:00 nginx: worker process

nginx 18395 18393 0 15:40 ? 00:00:00 nginx: worker process

root 18399 14028 0 15:40 pts/0 00:00:00 grep nginx

[root@localhost nginx]# kill -QUIT `cat /usr/local/nginx/nginx.pid`

[root@localhost nginx]# ps -ef | grep nginx

root 18447 14028 0 15:42 pts/0 00:00:00 grep nginx

[root@localhost nginx]#

Nginx快速停止命令，立刻关闭nginx进程

ps -ef | grep nginx

kill –TERM nginx主进程号

[root@localhost nginx]# ./nginx

[root@localhost nginx]# ps -ef | grep nginx

root 18503 1 0 15:44 ? 00:00:00 nginx: master process ./nginx

nginx 18504 18503 0 15:44 ? 00:00:00 nginx: worker process

nginx 18505 18503 0 15:44 ? 00:00:00 nginx: worker process

root 18508 14028 0 15:44 pts/0 00:00:00 grep nginx

[root@localhost nginx]# kill -TERM 18503

[root@localhost nginx]# ps -ef | grep nginx

root 18557 14028 0 15:46 pts/0 00:00:00 grep nginx

[root@localhost nginx]#

如果以上命令不管用，可以强制停止：

Kill -9 nginx主进程号

如果嫌麻烦可以不用查看进程号，直接使用命令进行操作

其中/usr/local/nginx/nginx.pid为nginx.conf中的pid命令设置的参数，用来存放nginx主进程号的文件

Kill –信号类型(HUP|TERM|QUIT) `cat /usr/local/nginx/nginx.pid`

例如：

kill -QUIT `cat/usr/local/nginx/nginx.pid`

nginx重启命令：

1简单型，先关闭进程，修改你的配置后，重启进程。

kill -QUIT `cat/usr/local/nginx/nginx.pid`

./nginx

2 重新加载配置文件，不重启进程，不会停止处理请求

3 平滑更新nginx二进制，不会停止处理请求

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04_Nginx命令行参数，控制信号，Nginx启动、停止、重启命令，04_nginxnginx