Hi, I am designing scalable PPP [mean it can be extended to over Ethernet, over HDLC, over ATM etc.]. I was stuck in determining whether State Machine is hadle by PPP stack [means i have design Base class for PPPStack in which FSM, encode, decode etc is there] or PPPoE [which is derived from my PPP Base Class PPPStack]. I am designing...
Has anyone used Wikis to create highly customized and scalable website that does not look like Wikipedia? Answers.com Wiki is one that I know of. If yes, how much of an effort was to customize the existing code or create new templates/plugins? Which Wiki platform was used? ...
Hi, I am currently designing a role based authentication system for resources where many users have different access rights to it. A role may be a single user, or a group of roles (so a role is a tree of roles). (see graphic below) A resource can have multiple authentication properties (like read, write, delete), where each of this ...
According to the website Katta is a scalable, failure tolerant, distributed, indexed, data storage. I would like to know if it is ready to be deployed into production environment. Anyone already using it and has advices? Any pitfalls? Recommendations? Testimonials? Please share. Any answer would be greatly appreciated. ...
Each of our programs has something in common, which is a waste of time and mind. It's fine when the common part is simple,but not always the case. Has anyone ever thought of this kind of question? The goal is: When we do coding,we only do the new,say,the part not similar with any part done before. If there is a good solution,it'll ...
Could someone suggest an open source (preferably on Linux) scalable network engine for my multimedia streaming server. This engine should do : security/NAT handling/load balancing/handling many(thousands) clients etc. I guess Network games too require such components , right ? But could they fit into streaming use case ? links towards...
Although the java.net.Socket and java.net.ServetSocket give me powerful networking capabilities I wouldn't want to go through the nitty gritties of creating and managing my own sockets and threads. What open source Java Frameworks are available to create/deploy a Highly Scalable Multithreaded Client/Server Network Application? ...
Is anyone aware of scalable GUI for the desktop (or browser) ? Imagine you layout a huge gui that is too big for one regular screen, but you could zoom out see the complete gui (and even could press buttons etc.) or zoom into the area of your interest. Similar to browser on a mobile phone, zoom out and you cant read the text, but you st...
Hi, Incase if you are to develop twitter today what language, tools and approach will one take. How will he start from the very frugal configuration and gradually scale to the levels twitter has reached today. Incase if you can provide direct responses like (PHP+ Apache+ memchached+ MySQL) or (JSP+TomCat/Glassfish+ MySQL / other db) et...
Greetings All, I've seen similar questions asked before with no conclusive or tested answers. I'm designing a News Feed system using PHP/MySQL similar to facebooks. Seeing as this table could grow to be quite large -- any inefficiency could result in a significant bottleneck. Example Notifications: (Items in bold are linked objects) ...
Hi there, I would like to broaden my Delphi horizons by reading a book about creation of Delphi applications. So far I have read books about Delphi mostly from Marco Cantu (Delphi 6-2009) or The Tomes of Delphi Algorithms and Data Structures. But none of them describe the process of application creation from the beginning to end. Somewh...
Hello everyone, We are building an extranet loan status check website using ASP.NET MVC with a WCF backend. Its a pretty standard design with the MVC site using a WCF service reference to get customer objects. The ervice uses an Oracle backend + http binding, and won't be hosted on the same server as the MVC site (so we can't use tcp b...
I'm currently working on a browser-based MMO and have chosen the LAMP stack because of the extremely low cost to start with in production (versus Windows + IIS + ASP.NET/C# + SQL Server, even though I have MSDN Universal). However I will need a PHP framework for this as it's no easy task. I am not restricted by anything other than the ab...
Hi, I'm building a chat system for a company and I'm wondering as to what the best way to build the system would be? The current setup we have is a Nginx HTTP Server with PHP and Memcacheq (as a message queue that appends the chat messages to the user's own queue). We then poll the Nginx server (through a Comet style request) and query...
Does anyone know good scalable implementation of SVD on C# for very big matrix? ...
Hi, There is a technical requirement to scale a new system easily. This new system consists of three tiered applications (as a batch processors). Each tier will contains at least 2 servers with the same application resides on each server. So, when one of the tier reaches peak performance, we could extend the scalability easily by addi...
Services like posterous support blogging, etc through email. It seems, then, that any server they use (their headers indicate postfix) must support (a) only accepting email from whitelist based on say, web registration (b)support extensible handling of attachments (c) interaction with a database. How is this generally handled? With back...
a very cool article on how facebook breaks up their page into "pagelets" to maximize the work done by the server and browser when building a complex page that grabs various resources (ads, feeds, friends, etc). they call it bigpipe. steve souders actually talked about this at one of his talks and he referred to it as "flushing the docu...
I currently have a data solution in RDBMS. The load on the server will grow by 10x, and I do not believe it will scale. I believe what I need is a data store that can provide fault tolerant, scalable and that can retrieve data extremely fast. The Stats Records: 200 million Total Data Size (not including indexes): 381 GB ...
I am trying to build a system of monitoring site / server uptime in PHP, the system will be required to check thousands of domains / ips a minute. I have looked into cURL as this seems to be the best method. Edit: The system will be required to probe a server, check its response time is reasonable, and return its response code. It will...