Ngigx+Tomcat is configured with static and static separation and load balancing

Since the company has used Ngnix before, I feel a little curious about it when I just came into contact with Nginx, so I studied it.

The version I use under windows is nginx-1.8.1:

1. Start the Ngnix

Double-click nginx. exe in the nginx-1.8.1 folder. When there are two nginx processes in the task manager, it means that the startup is successful!

2. Ngnix common commands

Mandatory shutdown of nginx-s stop nginx-s quit shut down safely When nginx-s reload changes the configuration file, restart the nginx worker process and the configuration file takes effect nginx-s reopen open the log file

3. Nginx configuration

The following configuration integrated online information, note down, in case you forget.

#Nginx The users and groups used 
#user nobody;
# The number of working child processes (usually equal to CPU The number or 2 Times the CPU ) 
worker_processes 1;

# The error log resides in the path 
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;

# The specified pid Storage file 
#pid    logs/nginx.pid;


events {
  # Using the network IO model linux advice epoll . FreeBSD The proposal USES kqueue
  #use epoll;

  # use epoll Model improves performance  win Don't need 
  #use epoll;
  # Maximum number of connections allowed 
  worker_connections 1024;
}


http {
  # Extension and file type mapping table 
  include    mime.types;
  # The default type 
  default_type application/octet-stream;

  # Define the log format 
  #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;

  #  Enable kernel replication mode and keep it on as fast as possible IO The efficiency of 
  sendfile    on;
  #tcp_nopush   on;

  #keepalive_timeout 0;
  # HTTP1.1 Support for persistent connections alive
  #  Lower the value of each connection alive Time can be in 1 Increases the number of responsive connections to a certain extent, so 1 This value can be reduced as appropriate 
  keepalive_timeout 65;

  #  Start the gzip Compression function Settings, effectively reduce network traffic 
  gzip on;
  gzip_min_length 1k;  # The minimum 1K
  gzip_buffers  4 16k;
  gzip_http_version 1.0;
  gzip_comp_level 2;
  gzip_types text/plain application/x-javascripttext/css application/xml;
  gzip_vary on;
  
  #  Static file cache 
  #  Maximum number of caches, files not in use 
  open_file_cache max=655350 inactive=20s;
  #  Verify the cache expiration interval 
  open_file_cache_valid 30s;
  #  The minimum number of times a document is used during the validity period 
  open_file_cache_min_uses 2;
  
  #xbq add
  #upstream Load balancing, here configure the server address and port number to be polled, max_fails For the number of times the request was allowed to fail, the default is 1.
  #weight For polling weights, different weight assignments can be used to balance the hit rate of the server. 
  upstream hostname {
    server 127.0.0.1:9000 max_fails=0 weight=2;
    server 127.0.0.1:9001 max_fails=0 weight=2;
  }

  server {
    listen    8181;
    server_name localhost;

    #charset koi8-r;
    #access_log logs/host.access.log main;

    root /img; # in nginx-1.8.1 New in the folder img Folder for static resources 
    
    location / {
      #root  html;
      #index index.html index.htm;
      #xbq add
      proxy_pass http://hostname;
      # The following 3 Bar directive allows redefinition and addition 1 The request header information that will be transferred to the proxy server 
      #  The request header Host information 
      proxy_set_header Host $host;
      #  Real client IP
      proxy_set_header X-Real-IP $remote_addr;
      #  Proxy routing information, fetch here IP There are safety risks 
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      #  Real user access protocol 
      proxy_set_header X-Forwarded-Proto $scheme;
      
      #  The default value default . 
      #  The back-end response 302 when  tomcat header In the location the host is http://192.168.1.62:8080
      #  because tomcat The request received is nginx Send the past , nginx Initiated request url host is http://192.168.1.62:8080
      #  Set to default Later, nginx Automatically put the response in the header location host The section is replaced with the one requested by the current user host Part of the 
      #  Many online tutorials set this value to  off With substitution disabled, 
      #  So the user's browser gets it 302 After the jump http://192.168.1.62:8080 , exposing the back-end server directly to the browser 
      #  So don't set this configuration to gild the lily unless you need to 
      proxy_redirect default;
      client_max_body_size 10m;  # Maximum number of bytes per file allowed for client request 
      client_body_buffer_size 128k; # The buffer agent buffers the maximum number of bytes requested by the client 
      proxy_connect_timeout 90;  #nginx The connection timeout with the back-end server 
      proxy_read_timeout 90;   # Back end server response time after successful connection 
      proxy_buffer_size 4k;    # Set up the proxy server ( nginx ) the buffer size to hold the user header information 
      proxy_buffers 6 32k;    #proxy_buffers Buffer the average page in 32k Set this as follows 
      proxy_busy_buffers_size 64k;# Buffer size under high load ( proxy_buffers*2 ) 
      proxy_temp_file_write_size 64k; # Set the size of the cache folder to be greater than this value and will start from upstream The server transfer 
      
    }
    
    #xbq add
    # configuration Nginx Static separation, defined directly from the static page /usr/nginxStaticFile ( Nginx Publish directory) read. 
    location ~\.(gif|jpg|jpeg|png|css|js|php)$ {
      
      #expires The time to define the user's browser cache is 7 Day, if the static page is not often updated, can be set longer, which can save bandwidth and relieve the pressure on the server   E:/staticResource;
      expires 7d;
    }
    
    #xbq add
    # To enable the nginx status  Listening to the page 
    location /nginxstatus {
      stub_status on;
      access_log on;
    }

    #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;
  #  }
  #}

}