最近在研究nginx的负载均衡和反向代理,先看下这两个简单的配置吧! 负载均衡 * C' S' e9 \& W7 y, f
worker_processes 1; events { worker_connections 1024; } http{ upstream lxx {//默认是80端口 server 192.168.0.62 weight=2; server 192.168.0.161 weight=3; } server { listen 80; location / { proxy_pass http://lxx; } }
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反向代理 ; c/ v; f2 {% Z7 Z
worker_processes 1; events { worker_connections 1024; } http{ upstream lxx {//默认是80端口 server 192.168.0.62 weight=2; server 192.168.0.161 weight=3; } server { listen 80; location / { proxy_pass http://lxx;
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#Proxy Settings proxy_redirect off; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504; proxy_max_temp_file_size 0; proxy_connect_timeout 90; proxy_send_timeout 90; proxy_read_timeout 90; proxy_buffer_size 4k; proxy_buffers 4 32k; proxy_busy_buffers_size 64k; proxy_temp_file_write_size 64k; } }
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从配置上来看,它只是多了Proxy Settings下面的一些设置参数!但从实际的表现结果来看,感觉区别并不是很大,负载均衡已经可以把用户的请求按照相关算法和规则发送到web集群的某台机器,而反向代理也是实现了如此的功能,它们的具体的区别在哪里?求普及! % X/ h% V( e+ k! H, ]4 E
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