Wednesday, 20 June 2012

SQLFire tutorials - 1

SQLFire is a memory-optimized, distributed database management system designed for applications that have demanding scalability and availability requirements. SQLFire offers some of the best features usually only seen in NoSQL databases, such as horizontal scalability, shared-nothing persistence and built in fault tolerance, but does it all while providing a real SQL interface. Applications can manage database tables entirely in memory, or they can persist tables to disk to reload the data after restarting the system. A SQLFire distributed system can be easily scaled out using commodity hardware.

In this post we’ll see how to setup and start a cluster of multiple SQLFire servers. Read more..

The canvas element – Basic usage

The HTML5 Canvas element has its contents rendered with JavaScript. The canvas element makes use of the "context" into which you can issue JavaScript commands to draw anything you want. The canvas is initially blank, and to display something a script first needs to access the rendering context and draw on it. You can obtain the rendering context and it's drawing function by using the getContext method. Read more..