nginx 均衡负载

来源：互联网发布：龙卷风网络歌手编辑：程序博客网时间：2024/05/23 18:42

不得不说nginx的强大，配置也很简单简洁。

nginx.conf

#nginx进程数，建议设置为等于CPU总核心数。
#user nobody;
worker_processes 1;

error_log logs/error.log;
error_log logs/error.log notice;
error_log logs/error.log info;

#进程文件
pid logs/nginx.pid;

#工作模式与连接数上限
events {
worker_connections 1024;
}

#设定http服务器
http {
include mime.types;#文件扩展名与文件类型映射表
default_type application/octet-stream; #默认文件类型

#log_format main '$remote_addr - $remote_user [$time_local] "$request" '
# '$status $body_bytes_sent "$http_referer" '
# '"$http_user_agent" "$http_x_forwarded_for"';

#access_log logs/access.log main;

sendfile on; #开启高效文件传输模式，sendfile指令指定nginx是否调用sendfile函数来输出文件
#tcp_nopush on; #防止网络阻塞

#keepalive_timeout 0;
keepalive_timeout 65; #长连接超时时间，单位是秒

#gzip on; #开启gzip压缩输出

upstream mysvr {
# weigth参数表示权值，权值越高被分配到的几率越大
server 192.168.1.10:9091 weight=1;
server 192.168.1.10:9092 weight=6;
server 192.168.1.10:9093 weight=2;
}

server {
listen 8088; #监听端口
server_name 192.168.1.10;#域名可以有多个，用空格隔开

#charset koi8-r;

access_log logs/host.access.log ;

location / {
root html;
# index index.html index.htm;

proxy_pass http://mysvr ;#请求转向mysvr 定义的服务器列表

#以下是一些反向代理的配置可删除.

proxy_redirect off;

#后端的Web服务器可以通过X-Forwarded-For获取用户真实IP
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
client_max_body_size 10m; # 允许客户端请求的最大单文件字节数
client_body_buffer_size 128k; # 缓冲区代理缓冲用户端请求的最大字节数，
proxy_connect_timeout 90; # nginx跟后端服务器连接超时时间(代理连接超时)
proxy_send_timeout 90; # 后端服务器数据回传时间(代理发送超时)
proxy_read_timeout 90; # 连接成功后，后端服务器响应时间(代理接收超时)
proxy_buffer_size 4k; # 设置代理服务器（nginx）保存用户头信息的缓冲区大小
proxy_buffers 4 32k; # proxy_buffers缓冲区，网页平均在32k以下的话，这样设置
proxy_busy_buffers_size 64k; # 高负荷下缓冲大小（proxy_buffers*2）
proxy_temp_file_write_size 64k; # 设定缓存文件夹大小，大于这个值，将从upstream服务器传
}

#error_page 404 /404.html;

# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}

# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# proxy_pass http://127.0.0.1;
#}

# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
#location ~ \.php$ {
# root html;
# fastcgi_pass 127.0.0.1:9000;
# fastcgi_index index.php;
# fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;
# include fastcgi_params;
#}

# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
# deny all;
#}
}

# another virtual host using mix of IP-, name-, and port-based configuration
#
#server {
# listen 8000;
# listen somename:8080;
# server_name somename alias another.alias;

# location / {
# root html;
# index index.html index.htm;
# }
#}

# HTTPS server
#
#server {
# listen 443 ssl;
# server_name localhost;

# ssl_certificate cert.pem;
# ssl_certificate_key cert.key;

# ssl_session_cache shared:SSL:1m;
# ssl_session_timeout 5m;

# ssl_ciphers HIGH:!aNULL:!MD5;
# ssl_prefer_server_ciphers on;

# location / {
# root html;
# index index.html index.htm;
# }
#}

}

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