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nginx 的平滑升级

本文摘要:0]#/usr/local/nginx/sbin/nginx-t6、给nginx发送平滑迁移信号(若不清楚pid路径,请检察nginx设置文件)[root@nginx-server~]#kill-USR2`cat/var/run/nginx

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1、为什么要对 nginx 平滑升级随着 nginx 越来越盛行,而且 nginx 的优势也越来越显着,nginx 的版本迭代也来时加速模式,1.9.0版本的nginx更新了许多新功效,例如 stream 四层署理功效,陪同着 nginx 的广泛应用,版本升级一定越来越快,线上业务不能停,此时 nginx 的升级就是运维的事情了nginx 利便地资助我们实现了平滑升级。其原理简朴归纳综合,就是: (1)在不停掉老历程的情况下,启动新历程。(2)老历程卖力处置惩罚仍然没有处置惩罚完的请求,但不再接受处置惩罚请求。(3)新历程接受新请求。

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(4)老历程处置惩罚完所有请求,关闭所有毗连后,停止。这样就很利便地实现了平滑升级。

一般有两种情况下需要升级 nginx,一种是确实要升级 nginx 的版本,另一种是要为 nginx 添加新的模块Nginx信号简介主历程支持的信号TERM, INT: 连忙退出QUIT: 等候事情历程竣事后再退出KILL: 强制终止历程HUP: 重新加载设置文件,使用新的设置启动事情历程,并逐步关闭旧历程。USR1: 重新打开日志文件USR2: 启动新的主历程,实现热升级WINCH: 逐步关闭事情历程事情历程支持的信号TERM, INT: 连忙退出QUIT: 等候请求处置惩罚竣事后再退出USR1: 重新打开日志文件3、nginx 平滑升级实战1、检察现有的 nginx 编译参数[root@nginx-server ~]# cd /usr/local/nginx/sbin/nginx -V根据原来的编译参数安装 nginx 的方法举行安装,只需要到 make,千万不要 make install。

如果make install 会将原来的设置文件笼罩[root@nginx-server ~]# cd /usr/local/nginx-1.16.0/[root@nginx-server nginx-1.16.0]# ./configure --prefix=/usr/local/nginx --group=nginx --user=nginx --sbin-path=/usr/local/nginx/sbin/nginx --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --http-client-body-temp-path=/tmp/nginx/client_body --http-proxy-temp-path=/tmp/nginx/proxy --http-fastcgi-temp-path=/tmp/nginx/fastcgi --pid-path=/var/run/nginx.pid --lock-path=/var/lock/nginx --with-http_stub_status_module --with-http_ssl_module --with-http_gzip_static_module --with-pcre --with-http_realip_module --with-stream --with-http_image_filter_module[root@nginx-server nginx-1.16.0]# make3、备份原 nginx 二进制文件备份二进制文件和 nginx 的设置文件(期间nginx不会停止服务)[root@nginx-server nginx-1.16.0]# mv /usr/local/nginx/sbin/nginx /usr/local/nginx/sbin/nginx_$(date +%F)4、复制新的nginx二进制文件,进入新的nginx源码包[root@nginx-server nginx-1.16.0]# cp /usr/local/nginx-1.16.0/objs/nginx /usr/local/nginx/sbin/5、测试新版本的nginx是否正常[root@nginx-server nginx-1.16.0]# /usr/local/nginx/sbin/nginx -t6、给nginx发送平滑迁移信号(若不清楚pid路径,请检察nginx设置文件)[root@nginx-server ~]# kill -USR2 `cat /var/run/nginx.pid`7、检察nginx pid,会泛起一个nginx.pid.oldbin[root@nginx-server ~]# ll /var/run/nginx.pid*-rw-r--r-- 1 root root 5 Jul 1 11:29 /var/run/nginx.pid-rw-r--r-- 1 root root 5 Jul 1 09:54 /var/run/nginx.pid.oldbin8、从容关闭旧的Nginx历程[root@nginx-server ~]# kill -WINCH `cat /var/run/nginx.pid.oldbin`9、此时不重载设置启动旧的事情历程[root@nginx-server ~]# kill -HUP `cat /var/run/nginx.pid.oldbin`10、竣事事情历程,完成此次升级[root@nginx-server ~]# kill -QUIT `cat /var/run/nginx.pid.oldbin`11、验证Nginx是否升级乐成[root@nginx-server ~]# /usr/local/nginx/sbin/nginx -V4、升级实验1、安装设置1.6版本的 nginx,重新开启一台机械[root@localhost ~]# yum install -y gcc gcc-c++ pcre-devel openssl-devel zlib-devel[root@localhost ~]# tar xzf nginx-1.6.3.tar.gz -C /usr/local/[root@localhost ~]# cd /usr/local/nginx-1.6.3[root@localhost nginx-1.6.3]# ./configure --prefix=/usr/local/nginx --user=nginx --group=nginx --with-http_stub_status_module[root@localhost nginx-1.6.3]# make && make install[root@localhost nginx-1.6.3]# useradd -M -s /sbin/nologin nginx[root@localhost nginx-1.6.3]# /usr/local/nginx/sbin/nginx -t nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is oknginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful[root@localhost nginx-1.6.3]# /usr/local/nginx/sbin/nginx [root@localhost nginx-1.6.3]# netstat -lntpProto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 13989/nginx: master2、检察版本和模块[root@localhost nginx-1.6.3]# /usr/local/nginx/sbin/nginx -V nginx version: nginx/1.6.3built by gcc 4.8.5 20150623 (Red Hat 4.8.5-36) (GCC) configure arguments: --prefix=/usr/local/nginx --user=nginx --group=nginx --with-http_stub_status_module[root@localhost nginx-1.6.3]# echo "nginx1.6" > /usr/local/nginx/html/index.html[root@localhost nginx-1.6.3]# yum install -y elinks4、会见验证[root@localhost nginx-1.6.3]# elinks 10.0.105.1895、升级nginx将 nginx 版本举行升级 并在不影响业务的情况下添加 SSL 和 pcre 模块[root@localhost ~]# tar xzf nginx-1.12.2.tar.gz -C /usr/local/[root@localhost ~]# cd /usr/local/nginx-1.12.2/[root@localhost nginx-1.12.2]# ./configure --prefix=/usr/local/nginx --user=nginx --group=ngiinx --with-http_stub_status_module --with-http_ssl_module --with-pcre[root@localhost nginx-1.12.2]# make[root@localhost nginx-1.12.2]# cd[root@localhost ~]# mv /usr/local/nginx/sbin/nginx /usr/local/nginx/sbin/nginx_lod[root@localhost ~]# cp /usr/local/nginx-1.12.2/objs/nginx /usr/local/nginx/sbin/[root@localhost ~]# mv /usr/local/nginx/conf/nginx.conf /usr/local/nginx/conf/nginx.conf.bak[root@localhost ~]# kill -USR2 `cat /usr/local/nginx/logs/nginx.pid`[root@localhost ~]# ls /usr/local/nginx/logs/access.log error.log nginx.pid[root@localhost ~]# ps aux | grep nginx root 13989 0.0 0.0 24860 952 ? Ss 13:55 0:00 nginx: master process /usr/local/nginx/sbin/nginxnginx 13990 0.0 0.1 25284 1720 ? S 13:55 0:00 nginx: worker processroot 16525 0.0 0.0 112708 976 pts/2 S+ 14:09 0:00 grep --color=auto nginx16、nginx 错误页面设置nginx错误页面包罗404 403 500 502 503 504等页面,只需要在server中增加以下设置即可:#error_page 404 403 500 502 503 504 /404.html; location = /404.html { root /usr/local/nginx/html; }注意:/usr/local/nginx/html/ 路径下必须有404.html这个文件!!!404.html上如果引用其他文件的png或css就会有问题,显示不出来,因为其他文件的会见也要做设置; 为了简朴,可以将css嵌入文件中,图片用base编码嵌入;如下:[root@localhost html]# vim 404.html<!DOCTYPE html><html> <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1" /> <title>404</title> <style> .layout-table{display:table;height:100%;width:100%;vertical-align: middle;margin-top:150px} .layout-table-cell{display: table-cell;vertical-align: middle;text-align:center} .layout-tip{font-size:28px;color:#373737;margin: 0 auto;margin-top:16px;border-bottom: 1px solid #eee;padding-bottom: 20px;width: 360px;} #tips{font-size:18px;color:#666666;margin-top:16px;} </style> </head> 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" class="layout-img"> <p class="layout-tip">哎呀,找不到该页面啦!</p> <p id="tips">请检查您的网络毗连是否正常或者输入的网址是否正确</p> </div> </div> </div> </div> </body></html>展示效果;转自:知乎千锋云盘算学院。


本文关键词:亚盈体育app下载,nginx,的,平滑,升级,、,为什么,要对,nginx,平滑

本文来源:亚盈体育-www.foodimportchina.com

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