配置方法一(可用):
upstream tomcatserver1 { server 192.168.70.170 weight=3; server 192.168.70.172; server 192.168.70.173 down; server 192.168.70.174; server 192.168.70.175 backup; } server { listen 80; server_name localhost; #charset koi8-r; #access_log logs/host.access.log main; location / { proxy_pass http://tomcatserver1
; index index.html index.htm; } }
通过以上配置,便可以实现,在访问192.168.70.169这个网站时,由于配置了proxy_pass地址,所有请求都会先通过nginx反向代理服务器,在服务器将请求转发给目的主机时,读取upstream为 tomcatsever1的地址,读取分发策略,配置tomcat1权重为3,所以nginx会将大部分请求发送给49服务器上的tomcat1,也就是192.168.70.170;较少部分给tomcat2来实现有条件的负载均衡,当然这个条件就是服务器1、2的硬件指数处理请求能力。
1)down:表示单前的server暂时不参与负载
2)Weight:默认为1.weight越大,负载的权重就越大。
3)max_fails:允许请求失败的次数默认为1.当超过最大次数时,返回proxy_next_upstream 模块定义的错误
4)fail_timeout:max_fails 次失败后,暂停的时间。
5)Backup:其它所有的非backup机器down或者忙的时候,请求backup机器。所以这台机器压力会最轻。
配置方法二(可用):
#user nobody; worker_processes 1; #error_log logs/error.log; #error_log logs/error.log notice; #error_log logs/error.log info; #pid logs/nginx.pid; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; #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; #tcp_nopush on; #keepalive_timeout 0; keepalive_timeout 65; #gzip on; // 位置1:upstream upstream 192.168.70.169 { server 192.168.70.170; server 192.168.70.172; #ip_hash; } server { listen 80; server_name localhost; #charset koi8-r; #access_log logs/host.access.log main; location / { root html; index index.html index.htm index.php; } #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$fastcgi_script_name; fastcgi_param SCRIPT_FILENAME /$document_root$fastcgi_script_name; //位置2:proxy_pass proxy_pass http://192.168.70.169; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; 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; # } #} }
原文地址:https://www.cnblogs.com/wesky/p/9530046.html
时间: 2024-11-11 18:47:23