Scalability is the ability of a system, network, or process, to handle growing amount of work in a capable manner or its ability to be enlarged to accommodate that growth.

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3answers
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What does Douglas Crockford mean when he says jQuery doesn't scale? [closed]

In the Q&A section of this talk, Douglas Crockford says that jQuery doesn't scale as well as some other popular libraries. What does he mean by that, and what is it about the other libraries that ...
21
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2answers
1k views

Internal-use websites: Is there a compelling case against SQLite?

Many web frameworks, such as Flask or Django use SQLite as their default database. SQLite is compelling because it's included in python, and administrative overhead is pretty low. However, most high ...
19
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4answers
1k views

Is BDD scalable for medium to large projects?

In every Website you read about BDD (Behaviour Driven Development) you find a very simple nice example showing you how obvious and easy is it to define your requirements. But trying to implement this ...
17
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8answers
1k views

Dangers of huge monolithic application

The big project I'm working on for a couple years now is a control (and everything) application of an advanced device, heart of its firmware. The device is quite advanced, with more different ...
17
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5answers
978 views

Fighting technical debt as the “lowest developer”?

Let's say you work for a company and what you do is develop software for them. You have no idea of the big picture or maybe slight. What you do have are tasks assigned to you via issue tracking ...
17
votes
2answers
6k views

Does Node.js actually increase scalability?

I've been reading about the C10K Problem, and of particular note is the part that refers to asynchronous server I/O. http://www.kegel.com/c10k.html#aio I believe this pretty much summarises what ...
15
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8answers
4k views

What is the best way to design a web site to be highly scalable?

For websites that need to be highly scalable, such as social networks like facebook, what's the best way to design the website? Should I have a web service which the site queries to get data that it ...
15
votes
2answers
221 views

How to test and optimize when you can't reproduce the environment?

In the past, I've worked in a variety of environments. Desktop apps, games, embedded stuff, web services, command line jobs, web sites, database reporting, and so on. All of these environments shared ...
14
votes
3answers
6k views

How to design highly scalable web services in Java?

I am creating some Web Services that would have 2000 concurrent users. The services are offered for free and are hence expected to get a large user base. In the future it may be required to scale up ...
14
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2answers
6k views

How is software scalability measured?

I was asked to make some small technical presentation about specific application scalability. The application is developed using Java, Spring MVC, Hibernate. I have access to the application source ...
12
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4answers
3k views

Why is Scala more scalable than other languages? [closed]

Scala is billed as a scalable language, a feature that's even included in its name: The name Scala is a portmanteau of "scalable" and "language", signifying that it is designed to grow with the ...
12
votes
5answers
2k views

What should I do to scale out an high-traffic website?

What Best Practices should be undertaken for a Website that needs to "scale out" to handle capacity? This is especially relevant now that people are considering the cloud, but may be missing out on ...
12
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3answers
9k views

Why would more CPU cores on virtual machine slow compile times?

[edit#2] If anyone from VMWare can hit me up with a copy of VMWare Fusion, I'd be more than happy to do the same as a VirtualBox vs VMWare comparison. Somehow I suspect the VMWare hypervisor will be ...
10
votes
7answers
392 views

When to start thinking about scalability? [closed]

I'm having a funny but also terrible problem. I'm about to launch a new (iPhone) app. It's a turn-based multiplayer game running on my own custom backend. But I'm afraid to launch. For some reason, I ...
10
votes
1answer
435 views

How much does the data model affect scalability and performance in so called “NoSQL” database?

You can't ever have a talk about so called "NoSQL" database without bringing the CAP theorem (Consistency, Availability, Partition : pick two). If you have to pick say, between MongoDB (Partition, ...
8
votes
4answers
716 views

scalablity of Scala over Java

I read an article that says Scala handles concurrency better than Java. http://www.theserverside.com/feature/Solving-the-Scalability-Paradox-with-Scala-Clojure-and-Groovy ...the scalability ...
8
votes
5answers
514 views

Most common website scalability pitfalls

We are designing a website/web application where we hope to to achieve high user counts and, in general, lots of use. More specifically, we intend to be using PHP as the programming/scripting language ...
8
votes
2answers
537 views

Is this solution RESTful and secure?

Our product registers new players on our service, and we've chosen to host it on Azure (we're using .NET) and we wanted it to be stateless (for scalability) and relatively secure. Since this is the ...
8
votes
5answers
1k views

Where to get experience with Big Data? [closed]

I have a strong interest in creating and learning about highly scalable web sites and applications which deal with Big Data. For example, many world class web companies and startups such as Twitter, ...
7
votes
4answers
8k views

Java or Python for internet application? [closed]

In choosing a technology for internet applications where the number of users may scale over time, which one should we consider: Java or Python? What are the considerations in choosing one and not the ...
7
votes
6answers
418 views

When does it become overkill?

First off, I apologize cause I don't know how to make a community thread; so someone help me out please. As a developer, across many platforms, technologies and even on an infrastructure level; I ...
7
votes
6answers
400 views

Starting up in a basement and scaling

So I have this 'great' idea in my head that I want to start working on and build a company around it. Been working on desktop development for 5+ years and the idea revolves around the web. My exposure ...
7
votes
5answers
810 views

How do you off load work from the database?

In at least the web development field, web servers are everywhere but are backed by very few database servers. As web servers get hit with requests they execute large queries on the database, putting ...
7
votes
3answers
272 views

Scaling Up applications

What should I consider when taking an application (web) from a few users to hundreds or thousands? Basically, what should I be considering when thinking about escalating?
7
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5answers
2k views

Highly scalable and dynamic “rule-based” applications?

For a large enterprise app, everyone knows that being able to adjust to change is one of the most important aspects of design. I use a rule-based approach a lot of the time to deal with changing ...
7
votes
1answer
540 views

How can I gather client's data on Google App Engine without using Datastore/Backend Instances too much?

One of the projects I'm working on is online survey engine. It's my first big commercial project on Google App Engine. I need your advice on how to collect stats and efficiently record them in ...
6
votes
4answers
7k views

why are noSQL databases more scalable than SQL? [duplicate]

Recently I read a lot about noSQL DBMSs. I understand CAP theorem, ACID rules, BASE rules and the basic theory. But didn't find any resources on why is noSQL scalable more easily than RDBMS (e.g. in ...
6
votes
6answers
2k views

Is it recommended to use SQL Server as database for massively scalable applications?

Let's say you are planning to create a website of the scale of Facebook (If I am going to cite a website's name then why not Facebook?!). Is it recommended to use SQL Server as your database for such ...
6
votes
2answers
206 views

Adding new features to an old application

I wrote a .NET Windows application using framework 3.5. At that time, 3.5 was very new and I had knowledge of framework 2.0 only. Due to deadline, I didn't use any new features of version 3.5 and ...
6
votes
3answers
682 views

Work load balance/Task distribution algorithm

I'm looking for an algorithm to either use or as a jump point for load balancing. Environment: We have ~7 job types that can be scheduled at any time by our users. Some jobs are fast, others are ...
6
votes
1answer
879 views

What are the challenges in building a scalable real-time web app?

I'm looking into real-time web applications using websockets and node.js. I'm interested to see what are some technical challenges with scaling such a setup. One such problem I've heard is that each ...
5
votes
4answers
1k views

Why scalability issues cannot be solved by more servers ?

I know that big websites suffer from scalability issues and I guess that more servers (hardware) can help to handle scalabililty issues but I see that big websites are stuck about scalability even if ...
5
votes
2answers
193 views

Storing stop/start points in a database

Let's say I am storing start and stop points per user into a database table. For example... let's say in a chat system, a user only needs to see lines 24-293, and 500-512. (Let's say he logged off ...
5
votes
1answer
944 views

Is Node.js correct choice for JSON parsing and IO driven

My program should perform following task: It listen on http port after getting request it does following things. Connect to gearman Parse gearman payload to JSON (Upto 100 bytes) Connect to Redis ...
5
votes
1answer
2k views

Designing an scalable message queue architecture

I have recently started learning the nuances of scalable and enterprise computer architecture, and one of the central components is a messaging queue. In order to learn the most I can from any ...
5
votes
1answer
235 views

How do I build a highly scalable user/profile service?

Question -- I currently have a large monolithic Java application which I am working to break up into services components. One of the components I want to separate out is the service which handles ...
4
votes
10answers
455 views

Taking scalability to the next level. What methods can help me make sure I do the right thing?

Myself and a fellow PHP dev are starting to research a new web app that we think (hope) will have a global reach. The trouble is that, whilst we both consider ourselves capable, we are concerned with ...
4
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5answers
1k views

Scalability and Programming languages

What makes a language scalable ? I believe scalability is more about system design. It sounds really odd to me, to say that one language is more scalable than the another.
4
votes
5answers
1k views

Structuring database for multi-object “activity” and “following” functionalities

I am working on a web application which operate with different types of objects such as user, profiles, pages etc. All objects have unique object_id. When objects interact it may produce "activity", ...
4
votes
4answers
2k views

JSF for an internet facing, high traffic web application

I, perhaps, made a wrong choice of going with a Component-based Framework like JSF for an internet facing, high traffic web application. Development with JSF has although been easier but what I fear ...
4
votes
1answer
607 views

OOCSS / BEM / SMACSS architecture

I've been working through this article to organize my front-end code. It references articles on BEM / SMACSS, which in turn reference other articles. I'm really trying to understand what the best ...
4
votes
3answers
287 views

What is “Scalable Integrated Systems”?

I've come across a job posting that asks for experience with "Scalable Integrated Systems", but honestly that sounds like "generic buzzword," and I'm trying to figure out what the actual work behind ...
4
votes
3answers
248 views

Developing scalable applications using Agile methods

Maybe someone can share from his experience about developing an application that is meant to scale big time where just throwing more money at better hardware isn't a realistic option using development ...
4
votes
1answer
799 views

How can I scale spring application context?

I'm currently working on a project that need to be dynamically scaled on demand according to the need. My question is about scaling spring context. My web application has a classical multi module ...
4
votes
1answer
802 views

How is Scala scalable? [duplicate]

Possible Duplicate: Why is Scala more scalable than other languages? The Wikipedia page on Scala says: The name Scala is a portmanteau of "scalable" and "language", signifying that it ...
3
votes
7answers
2k views

Web framework able to handle many concurrent users [closed]

Social networking sites needs to handle many concurrent users e.g. for chat functionality. What web frameworks scales well and are able to handle more than 10.000 concurrent users connected with ...
3
votes
4answers
754 views

Scaling Scrum within a group of 100s of programmers

Most Scrum teams lean toward 7-15 people **, though it's not clear how to scale Scrum among 100s of people, or how the effectiveness of a given team might be compared to another team within the group; ...
3
votes
3answers
626 views

Is the database the bottleneck or not? High Scalability talk

I found an interesting article on high scalability web site where it talks about EBay scalability and especially a specific passage struck me: "(Ebay strategies)...Move work out of the database ...
3
votes
2answers
353 views

Handling multiple clients using single application

We are developing an ERP web application using Vaadin framework where each of the potential client companies will have their own data and file storage. Current implementation only allows having one ...
3
votes
3answers
837 views

Splitting big request in multiple small ajax requests

I am unsure regarding the scalability of the following model. I have little experience with large systems, big number of requests and so on but I'm trying to build some features considering ...