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
u* Q. H$ ]; J" _4 R% p% a' C, [
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; } }
/ S4 E0 H9 P7 {# v1 T- U! ?" o; F}
. r9 ~8 k8 O k& X
% C% D1 E- ?3 y- S
反向代理
! q4 Q, |, L( D$ w
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;
# E9 q5 t" S$ b( C
#Proxy Settings proxy_redirect off; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504; proxy_max_temp_file_size 0; proxy_connect_timeout 90; proxy_send_timeout 90; proxy_read_timeout 90; proxy_buffer_size 4k; proxy_buffers 4 32k; proxy_busy_buffers_size 64k; proxy_temp_file_write_size 64k; } } ) v$ o) N ?! F4 f6 I
}
* G( h' M( u# H' x2 {- K
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! 3 c% L" C6 k3 |* i1 P& H
+ p# Y& v% P/ l, R
|