nignx学习篇

1.nignx重启不用怕原先的链接中断或者出现错误

   nignx是先由master进程启动新的worker进程，在发送停止命令至老的worker进程，老的worker进程接收到命令后，处理完当前的链接就不再接收新的请求，新的worker处理新的请求

nginx优化配置：

# 启动用户
user  nginx www; 
worker_processes  8;
# 8核CPU使用以下配置
#worker_processes 8; 
#worker_cpu_affinity  00000001  00000010  00000100  00001000  00010000  00100000 01000000 10000000; 
 
# 16核CPU配置
#worker_processes 16;
#worker_cpu_affinity 0000000000000001 0000000000000010 0000000000000100 0000000000001000 0000000000010000 0000000000100000 0000000001000000 000000010000000 0000000100000000 0000001000000000 0000010000000000 0000100000000000 0001000000000000 0010000000000000 000000000000000 1000000000000000;
 
 
# 日志
error_log   /data/logs/nginx/error.log  info;
 
 
pid        /usr/local/nginx/nginx.pid;
worker_rlimit_nofile 655350;
events {
    use epoll;
    worker_connections  655350;
}
 
http {
    include       mime.types;
    default_type  application/octet-stream;
 
    # 去掉nginx版本号
    server_tokens off;   
 
    sendfile       on;
    tcp_nopush     on;
 
    # keepalive打开，每个连接最大请求数
    keepalive_timeout  65;
    keepalive_requests 1000;
 
 
    # uWSGI 相关配置
    uwsgi_buffer_size 256k;
    uwsgi_buffers     128 256k;
 
    # 默认打开gzip，注意sxsvr需要把gzip关掉
    gzip on;
 
    # 日志
    log_format  brackets  '[$remote_addr][$remote_user][$time_local]["$request"][$server_port]'
                          '[$status][$body_bytes_sent][$http_referer]'
                          '[$http_user_agent][$http_x_forwarded_for]'
                          '[$request_time][$upstream_response_time]';
    access_log /data/logs/nginx/access.log brackets;


    upstream xxx {
        server 0.0.0.0::8091  weight=1;
        keepalive 50;
    }
    
    upstream xxxx {
        server 0.0.2.5:9093  weight=1;
        keepalive 20;
    }




    server
    {
        listen 80;
        server_name *.xxxx.cn; 
        charset utf8;
        include ./vhost/*.location;
    }

    #server
    #{ 
    #    listen 443;
    #    ssl on;     
    #    ssl_certificate /etc/ssl/kuaipan.cn.cer;     # 指定证书路径，写绝对路径
    #    ssl_certificate_key /etc/ssl/kuaipan.cn.key; # 指定证书路径，写绝对路径
    #    server_name *.kuaipan.cn;
    #    charset utf8;
    #    include ./vhost/*.location;
    #}