nginx轮询负载均衡演示demo
作者：互联网
1.nginx /conf/nginx.conf配置文件
#user nobody;
worker_processes auto;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
pid logs/nginx.pid;
events {
use epoll;
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;
upstream yes.oktokeep.com {
server 127.0.0.1:8882;
server 127.0.0.1:8883;
server 127.0.0.1:8881;
server 127.0.0.1:8884;
}
server {
listen 80;
server_name yes.oktokeep.com;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
root html;
index index.html index.htm;
proxy_pass http://yes.oktokeep.com;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# 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;
# }
#}
}
2.修改 /etc/hosts文件
增加映射 127.0.0.1 yes.oktokeep.com
3.创建nodejs文件，模拟4个应用，文件内容一样，仅仅端口号不同
8881.js(同理创建8882.js,8883.js,8884.js文件)
var http = require("http");
http.createServer(function(request,response){
response.writeHead(200,{"Content-Type":"text/plain"});
response.write("Hello Nignx,I am warking on port 8881.\n");
response.end();
}).listen(8881);
console.log("nodejs start listen 8881 port!\n");
var http = require("http");
http.createServer(function(request,response){
response.writeHead(200,{"Content-Type":"text/plain"});
response.write("Hello Nignx,I am warking on port 8882.\n");
response.end();
}).listen(8882);
console.log("nodejs start listen 8882 port!\n");
var http = require("http");
http.createServer(function(request,response){
response.writeHead(200,{"Content-Type":"text/plain"});
response.write("Hello Nignx,I am warking on port 8883.\n");
response.end();
}).listen(8883);
console.log("nodejs start listen 8883 port!\n");
var http = require("http");
http.createServer(function(request,response){
response.writeHead(200,{"Content-Type":"text/plain"});
response.write("Hello Nignx,I am warking on port 8884.\n");
response.end();
}).listen(8884);
console.log("nodejs start listen 8884 port!\n");
4.启动nginx, node 8881.js &
5.模拟请求
上传3份nodejs文件
node /usr/workspace/nodejs/8881.js &
node /usr/workspace/nodejs/8882.js &
node /usr/workspace/nodejs/8883.js &
node /usr/workspace/nodejs/8884.js &
##使用轮询的方式来访问
[root@VM-4-3-centos /]# curl http://yes.oktokeep.com
Hello Nignx,I am warking on port 8883.
[root@VM-4-3-centos /]# curl http://yes.oktokeep.com
Hello Nignx,I am warking on port 8884.
[root@VM-4-3-centos /]# curl http://yes.oktokeep.com
Hello Nignx,I am warking on port 8882.
[root@VM-4-3-centos /]# curl http://yes.oktokeep.com
Hello Nignx,I am warking on port 8881.
[root@VM-4-3-centos /]# curl http://yes.oktokeep.com
Hello Nignx,I am warking on port 8883.
[root@VM-4-3-centos /]# curl http://yes.oktokeep.com
Hello Nignx,I am warking on port 8884.
[root@VM-4-3-centos /]# curl http://yes.oktokeep.com
Hello Nignx,I am warking on port 8882.
[root@VM-4-3-centos /]# curl http://yes.oktokeep.com
Hello Nignx,I am warking on port 8881.
[root@VM-4-3-centos /]# curl http://yes.oktokeep.com
Hello Nignx,I am warking on port 8883.
[root@VM-4-3-centos /]# curl http://yes.oktokeep.com
Hello Nignx,I am warking on port 8884.
[root@VM-4-3-centos /]# curl http://yes.oktokeep.com
Hello Nignx,I am warking on port 8882.
[root@VM-4-3-centos /]# curl http://yes.oktokeep.com
Hello Nignx,I am warking on port 8881.
[root@VM-4-3-centos /]# curl http://yes.oktokeep.com
Hello Nignx,I am warking on port 8883.
[root@VM-4-3-centos /]# curl http://yes.oktokeep.com
Hello Nignx,I am warking on port 8884.
[root@VM-4-3-centos /]# curl http://yes.oktokeep.com
Hello Nignx,I am warking on port 8882.
[root@VM-4-3-centos /]# curl http://yes.oktokeep.com
Hello Nignx,I am warking on port 8881.
标签：http,Nignx,demo,轮询,am,nginx,yes,root,port 来源： https://www.cnblogs.com/oktokeep/p/16340357.html