roadflow工作流用nginx做负载均衡的配置文件

由于某大型集团客户几万人使用roadflow工作流系统，所以采用nginx来做负载均衡，经过试验，nginx配置文件内容如下：

#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 
a
​    
 ddr−remote_user [time_local] "time 
l
​    
 ocal]"request" '
    #                  'statusstatusbody_bytes_sent "$http_referer" '
    #                  '"http_user_agent" "http 
u
​    
 ser 
a
​    
 gent""http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;
    
    map http_upgradehttp 
u
​    
 pgradeconnection_upgrade {
        default Upgrade;
        '' close;
    }
    
    #gzip  on;
    upstream roadflow {

        #由于用了session，所以这里要用ip保持
        ip_hash; 
        server localhost:59630;
        server localhost:83;
    } 
    server {
        listen       8000;
        server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;
        
        #Signal代理
        location /SignalRHub {            
            proxy_pass  http://roadflow;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header Host $host;
            proxy_cache_bypass $http_upgrade;
        }

        location / {
            root   html;
            index  index.html index.htm;
            #其中jq_one 对应着upstream设置的集群名称
            proxy_pass         http://roadflow; 
            #设置主机头和客户端真实地址，以便服务器获取客户端真实IP
            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;
    #    }
    #}

}