Nginx之二：负载均衡及高可用
upstream webserver {server 192.168.10.2;#默认80端口
server 192.168.10.3;
}
------nginx.conf配置如下：
usernginx; #运行用户
worker_processes2; #启动进程数
error_log/var/log/nginx/error.log warn;
pid /var/run/nginx.pid;
events {
worker_connections5000;#工作线程连接数5000
}
http {
include /etc/nginx/mime.types;
default_typeapplication/octet-stream;
log_formatmain'$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log/var/log/nginx/access.logmain;
sendfile on;
#tcp_nopush on;
keepalive_timeout65;
#gzipon;
upstream webserver {
server 192.168.1.102;
server 192.168.1.200;
}
include /etc/nginx/conf.d/*.conf;
}
在/etc/nginx/conf.d/default.conf在location / 中添加proxy_pass请求全部代理到刚才定义好webserver
location / {
proxy_pass http://webserver;
root html;
index index.html index.htm;
}
-----------default.conf配置如下：-------------------------------------------------
server {
listen 80;
server_namelocalhost;
#charset koi8-r;
#access_log/var/log/nginx/log/host.access.logmain;
#location / {
# root /usr/share/nginx/html;
# indexindex.html index.htm;
#}
location / {
proxy_pass http://webserver;
root html;
index index.html index.htm;
}
#error_page404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504/50x.html;
location = /50x.html {
root /usr/share/nginx/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_indexindex.php;
# fastcgi_paramSCRIPT_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 {
# denyall;
#}
}
# service nginx configtest#测试配置文件
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: 5000 worker_connections exceed open file resource limit: 1024
nginx: configuration file /etc/nginx/nginx.conf test is successful
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