学习笔记(01):高并发下的Nginx性能优化实战-Linux下Nginx的安装(一)
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高并发下Nginx状态监控:
① 安装插件:
./configure --prefix=/opt/nginx --with-http_stub_status_module
make
make install
② 添加如下代码:
location /NginxStatus {
stub_status on;
access_log off;
}
③ 重启Nginx
./nginx -s stop
./nginx
④ 浏览器输入
http://192.168.1.15/NginxStatus
Active connections: 2 server accepts handled requests 4 4 3 Reading: 0 Writing: 1 Waiting: 1
4 4 3参数含义:
总共处理了4个连接,成功创建了4次握手,总共处理了3个请求
查看Nginx并发进程数:
ps -ef | grep nginx | wc -l
查看web服务器tcp连接状态:
netstat -n | awk '/^tcp/{++S[$NF]} END {for(a in S) print a, S[a]}'
状态解析: