1、下载扩展补丁包,解压并打补丁 点此下载
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[[email protected] ~] # unzip nginx-http-sysguard-master.zip [[email protected] ~] # cd nginx-1.4.2 [[email protected] nginx-1.4.2] # patch -p1 < ../nginx-http-sysguard-master/nginx_sysguard_1.3.9.patch |
2、重新编译安装Nginx
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[[email protected] nginx-1.4.2] # ./configure > --prefix= /usr
> --sbin-path= /usr/sbin/nginx
> --conf-path= /etc/nginx/nginx .conf > --error-log-path= /var/log/nginx/error .log > --http-log-path= /var/log/nginx/access .log > --pid-path= /var/run/nginx/nginx .pid > --lock-path= /var/lock/nginx .lock > --user=nginx > --group=nginx > --with-http_ssl_module > --with-http_flv_module > --with-http_stub_status_module > --with-http_gzip_static_module > --http-client-body-temp-path= /var/tmp/nginx/client/
> --http-proxy-temp-path= /var/tmp/nginx/proxy/
> --http-fastcgi-temp-path= /var/tmp/nginx/fcgi/
> --http-uwsgi-temp-path= /var/tmp/nginx/uwsgi
> --http-scgi-temp-path= /var/tmp/nginx/scgi
> --with-pcre > --add-module= /root/nginx-http-sysguard-master/ [[email protected] nginx-1.4.2] # make && make install |
3、修改Nginx配置文件添加过载保护;这里说明下为了测试方便,把CPU负载调的比较低
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[[email protected] nginx-1.4.2] # cd /etc/nginx/ [[email protected] nginx] # vim nginx.conf ######在"server"模块中添加如下内容 sysguard on; #开启过载保护功能 sysguard_load load=0.3 action= /loadlimit ; #cpu负载超过0.3就保护,"action"过载保护动作 #sysguard_mem swapratio=20% action=/swaplimit; #交换分区过载保 #sysguard_mem free=100M action=/freelimit; #内存过载保护 location /loadlimit { return 503; #系统过载返回503 } 注释:由于新添加了功能需要重启Nginx服务 [[email protected] nginx] # service nginx restart |
4、安装”htop”工具,监测负载
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[[email protected] ~] # yum -y install htop [[email protected] ~] # htop |
5、在另一台主机使用apache自带的压力测试工具ab做压测;在压测前先访问一下是否正常如:
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######做压力测试 [[email protected] ~] # ab -n 50000 -c 1000 http://172.16.14.1/index.html |
6、查看Nginx服务器的负载状况
7、测试访问Nginx服务器是否能正常访问