Web Hosting Articles

  Home arrow Web Hosting Articles arrow Page 3 - What is Load-balancing and Do I Need I...
Web Hosting Articles  
Web Hosting FAQs  
Web Hosting How-Tos  
Web Hosting News  
Web Hosting Reviews  
Web Hosting Security  
Weekly Newsletter 
 
Developer Updates  
Free Website Content 
 RSS  Articles
 RSS  Forums
 RSS  All Feeds
Write For Us 
Contact Us 
Site Map 
Privacy Policy 
Support 
 USERNAME
 
 PASSWORD
 
 
  >>> SIGN UP!  
  Lost Password? 
WEB HOSTING ARTICLES

What is Load-balancing and Do I Need It?
By: Rich Smith
  • Search For More Articles!
  • Disclaimer
  • Author Terms
  • Rating: 4 stars4 stars4 stars4 stars4 stars / 33
    2004-09-29

    Table of Contents:
  • What is Load-balancing and Do I Need It?
  • Why Load Balance?
  • Software Load-balancing
  • Hardware Load-balancing
  • Hardware vs. Software – A Comparison
  • Conclusion

  • Rate this Article: Poor Best 
      ADD THIS ARTICLE TO:
      Del.ici.ous Digg
      Blink Simpy
      Google Spurl
      Y! MyWeb Furl
    Email Me Similar Content When Posted
    Add Developer Shed Article Feed To Your Site
    Email Article To Friend
    Print Version Of Article
    PDF Version Of Article
     
     

    SEARCH WEB HOSTERS

    TOOLS YOU CAN USE

    advertisement

    What is Load-balancing and Do I Need It? - Software Load-balancing


    (Page 3 of 6 )

    What is Software Load-balancing?

     

    Many web servers, including the popular Apache Web Server, have built-in support for load-balancing.  While using a software configuration to accommodate your load-balancing needs is a less expensive approach than a hardware-centric approach, it tends to be much less robust, and suitable mostly for medium-to-low traffic scenarios.

     

    The most popular software load-balancing solution is called ‘DNS Round Robin’.  Simply put, DNS Round Robin sits on a server in front of your web servers, and as requests come in for web pages, it hands them to the next available web server to be processed.  In this process, each server is hit sequentially, in turn.  So, if you have three boxes on a DNS Round Robin configuration, the sequence of page requests would be server1, sever2, server3, server1, server2…  I’m sure you get the picture.  Unfortunately, this method of load-balancing does have some limitations:

     

    • There is no way of telling that a skipped server is down or is just busy.

    • The type of data requested is not taken into consideration.  Images and other supporting files may benefit from sitting on a different server than the ones processing scripting and database logic.

    • The server containing DNS Round Robin is a single point of failure.  If for some reason this server becomes unavailable, your other servers will never receive any traffic.

    • As your site grows and more servers begin to be implemented, this solution becomes more difficult to configure and manage.

    There are a number of software load-balancing solutions on the market, but most tend to be geared more to smaller sites and simple networks.  The software solutions that can handle the more robust requirements often require a sizable investment in hardware for them to handle the traffic adequately.

     

    More Web Hosting Articles Articles
    More By Rich Smith

    WEB HOSTING ARTICLES ARTICLES

    - Top Wordpress Plugins for SEO
    - Top Drupal Evaluation and Rating Modules
    - Free Network Monitoring Programs for Max Per...
    - E-store Hosting: Free Options for Beginners
    - Dropbox: The Ultimate File-Sharing and Synci...
    - Reviewing the Best Free Web Hosting Sites
    - Businesses Turn to Reseller Web Hosting for ...
    - Multiple Data Center Hosting
    - Web Hosting Goes Green
    - Web Hosting Technology Overview
    - Collaborate: An Examination of Tools for Gro...
    - Social Networking Security
    - Domain Names 101
    - Top Software to Help Manage Your Websites
    - The Evolution of Phishing

    Developer Shed Affiliates

     




    © 2003-2017 by Developer Shed. All rights reserved. DS Cluster - Follow our Sitemap