The general flight data cloud acceleration system design

== Welcome to biyifei

As you know, Flight data is generally powered by travelsky Co. in China.

The OTA Co. such as itour, ctrip, elong, they mush connect into the main power system which had been developed by publish official's partner.

So, the main power system is NOT power. The main problem in the whole internet business of traveling is getting the flight data from travel-sky very slowly but with more payments.

Biyifei has been designed by the mayjor of bestfly named huangqi. it is used to accelerate the gerenal flight system.

== Getting Started

1, 00:00 clock, to start the initialization data, time-consuming 2 minutes; the command: Lua 00.lua 2, start the expireTime program generation task, org/dst/date/; the command: nohup Lua 10.lua & (need to record PID number) 3, check whether the task item; the command: tail -10f nohup.out 4, start getting agent, to maintain an effective agent for a collection of elong IP queue; the command: nohup Lua proxyqueues.lua & (need to record PID number) 5, start the merge of price affairs; the command: nohup Lua combinate.lua & (need to record PID number) 6, start the scheduling program; the command: Lua maincall.lua Advice: two to find the agent process with 8 main scheduling process and a merger price affairs.

== Web Servers

By default, biyifei will try to use Nginx if it's installed when started with script/server, otherwise apache is the second choice.

in Nginx, configure the elongidx.lua for elong.com, and other ota's name combinate idx.lua

== nginx configure example for elongidx.lua

== General Nginx options

    location ~ '^/idx-elong/([A-Za-z0-9]{3})/([A-Za-z0-9]{3})/([A-Za-z0-9]{5,6})/([0-9]{8})/$'
    {
      default_type 'text/plain;charset=utf-8';
      set $org $1;
      set $dst $2;
      set $fltno $3;
      set $date $4;
    content_by_lua_file /data/rails2.3.5/biyifei/http/elongidx.lua;
    }

== Debugging lua

Sometimes your application goes wrong. Fortunately there are a lot of tools that will help you debug it and get it back on the nginx and linux lua envirement.

First area to check is the application log files. Have "debug_http" configuration running on the nginx.conf and youlogfilename.log in the error dir.

You can also log your own messages directly into the log file from your code using the lua logger class from inside your controllers.

Debugger support is available through the debugger command when you start your Mongrel or Webrick server with --debugger. This means that you can break out of execution at any point in the code, investigate and change the model, AND then resume execution! You need to install ruby-debug to run the server in debugging mode. With gems, use 'gem install ruby-debug' Example:

  if body then
		local wname = "/data/logs/rholog.txt"
		local wfile = io.open(wname, "w+");
		wfile:write(os.date());
		wfile:write("\r\n---------------------\r\n");
		wfile:write(pcontent);
		wfile:write("\r\n---------------------\r\n");
		wfile:write(ngx.var.remote_addr);
		wfile:write("\r\n---------------------\r\n");
		wfile:write(puri);
		wfile:write("\r\n---------------------\r\n");
		for k, v in pairs(args) do
			wfile:write(k .. ":" .. v .. "\n");
		end
		wfile:write("\r\n---------------------\r\n");
		wfile:write(body .. "\n");
		io.close(wfile);
	end

So the controller will open yourlogfilename.log, run the first line, then present you with a IRB prompt in the server window. Here you can do things like:

==>ngx.var.*

• Circle model scheduling algorithm
• implement the redirect supported
• implement the chunked
• implement the keepalive

"jijilu" jijilu@189.cn

This module is licensed under the BSD license.

Copyright (C) 2013, by Huang "baina" Qi (黄琦) jijilu@189.cn.

All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

• the ngx_lua module: http://wiki.nginx.org/HttpLuaModule
• the memcached wired protocol specification: http://code.sixapart.com/svn/memcached/trunk/server/doc/protocol.txt
• the lua-resty-redis library.
• the lua-resty-mysql library.