DeveloperWeek 2015 Conference + EXPO

Concurrency control is one of the main aspects of multi-player games where all the checks, conditional writes and game state updates must be made as fast as possible and with minimal client/server calls in order to keep the game fair and square. This is especially critical in turn-based games where careless implementation (such as putting code that alters the game state in the client) can lead to concurrency related “race condition” from creeping in. 

As developers move to create applications that engage in real-time interactions, they are increasingly adopting open source technology stacks that include Node.js, Javascript MVC frameworks such as AngularJS, asynchronous messaging via Socket.io, and NoSQL databases such as the open source Aerospike DB.

The session will begin with a brief introduction to the open source Aerospike DB. Then, it will specifically address how to gain concurrency control in a multi-user application using User Defined Functions. 

To illustrate, we will look at a web-based multi-player game written in Node.js that uses Aerospike Node.js Client. Other technologies used: AngularJS, Socket.io and Lua