Nginx tomcat 集群负载均衡解决笔记

Windows

下载nginx 地址：http://nginx.org/   本文章使用的版本为1.5.1

下载完后解压，在conf目录修改nginx.conf我的配置如下：

#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;

client_header_timeout  3m;
client_body_timeout    3m;
send_timeout           3m;

client_header_buffer_size    1k;
large_client_header_buffers  4 4k;

sendfile        on;
tcp_nopush      on;
tcp_nodelay     on;
#tcp_nopush     on;

#keepalive_timeout  0;
keepalive_timeout  65;

#gzip  on;

　　　upstream localhost {

　　  #根据ip计算将请求分配各那个后端tomcat，许多人误认为可以解决session问题，其实并不能。

　　  #同一机器在多网情况下，路由切换，ip可能不同

 　　 #ip_hash;

　　  server localhost:9097 weight=1;

　　  server localhost:9098 weight=1;

　　  server localhost:9097 backup;

　　  server localhost:9098 backup;

　　  #jvm_route $cookie_JSESSIONID|sessionid reverse; #session复制的配置

　　  ip_hash;

　　  }

upstream backend {
server localhost:9097;
server localhost:9098;
}

server {
listen       9096;
server_name  localhost;

#charset koi8-r;

#access_log  logs/host.access.log  main;

location ~ ^/(WEB-INF)/ {
deny all;
}

###所以的静态文件人gif、jpg等都在本地打开，存放的目录为html，保存时间为30天
location ~ .*\.(gif|jpg|jpeg|png|bmp|swf|css|js|htm|html)$ {
root html;
access_log off;
expires 30d;
}
location / {
root   html;
index  index.jsp;
#include     proxy.conf;  #这个文件是我们新建的，要导入
proxy_pass   http://localhost; proxy_redirect    off;#default
proxy_set_header   Host $host;
proxy_set_header   X-Real-IP $remote_addr;
proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
client_max_body_size   10m;
client_body_buffer_size   128k;
proxy_connect_timeout   3; #90
proxy_send_timeout   3; #90
proxy_read_timeout   3; #90
proxy_buffer_size   4k;
proxy_buffers   4 32k;
proxy_busy_buffers_size   64k;
proxy_temp_file_write_size  64k;
}

#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;
#    server_name  localhost;

#    ssl                  on;
#    ssl_certificate      cert.pem;
#    ssl_certificate_key  cert.key;

#    ssl_session_timeout  5m;

#    ssl_protocols  SSLv2 SSLv3 TLSv1;
#    ssl_ciphers  HIGH:!aNULL:!MD5;
#    ssl_prefer_server_ciphers   on;

#    location / {
#        root   html;
#        index  index.html index.htm;
#    }
#}

}

下载Tomcat

修改端口为9097

另一个修改为9098

分别启动二个tomcat和nginx在地址栏中输入http://locahost/则可以看到tomcat欢迎界面了

Linux 和window配置基本一样，只有linux下tomcat的配置要注意，需要添加环境变量