Thursday, November 19, 2009

Unavailable: System Crash

Have you ever waited until the last minute to apply for classes or visit your favorite clothing store’s web site to print out 50% off coupons only to see that the site is unavailable? More than likely you were not the only one attempting to do the same thing! What has occurred is a crash or system crash.

A system crash is defined as a computing condition in which a program (application or part of the operating system) completely stops performing its expected function and also discontinues responding to other components of the system.
There are many reasons why a system may tend to crash every now and then. Typical causes are when the program counter (which specifies where the computer is in the instruction process) is fixed to an address that is not correct or a buffer overflow overwrites a portion of program code due to an earlier bug.

An easier reason for a system crash is simple – too many visitors are on the web site! This problem is common when people are trying to view live video streaming or even trying to view great deals on Black Friday. Many systems are not capable of working to the best of their ability when there are thousands or even millions of visitor on it at once.

The process of debugging (finding and reducing the number of bugs) system crashes involves linking the actual cause of the crash with the code that set off the chain of unfortunate events. This process is not always simple.

Recently, hackers got into Twitter’s system and caused their system to crash. Twitter was unavailable for a few hours before they were able to get it back up and running properly.

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CODANK is a top Charlotte Web Design and Internet Marketing Company located in Charlotte, NC. The company is dedicated to providing a broad range of web design services. CODANK specializes in Search Engine Optimization (SEO), Graphic Design, Online Marketing, and Web Design and Development.

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