[NTLUG:Discuss] Clustering related

[m m]

Speak about clustering, I have a question on how to do a web server cluster 
on Linux boxes.

this is waht I want:
2 or 3 (web) servers running for mydomain.com (example) domain
when all servers are running, they share the requests (if there are 100 
requests, each of them get 33,33,34 requests)
if there any of them is (are) down/fail/die..., the rest of live ones take 
over the them.

how is this possible?

thanks

>From: Greg Edwards <greg at nas-inet.com>
>Reply-To: NTLUG Discussion List <discuss at ntlug.org>
>To: NTLUG Discussion List <discuss at ntlug.org>
>Subject: [NTLUG:Discuss] Clustering
>Date: Tue, 25 Mar 2003 13:01:10 -0600
>
>I've got a friend that I finally got to join the list but he's still 
>lurking.  I'll get him to speak some day ;)
>
>He was unsure of the term clustering so I thought I'd try and wing a 
>general description and let those that know correct my foul-ups.
>
>In general (as I understand it) a cluster is an attempt to make resources 
>from a group of computers look like 1 computer to a running program.  The 
>cluster may share files and/or memory.  The one thing that the cluster 
>cannot share is executing programs.  While the code and constant sections 
>could (in theory) be shared it wouldn't be worth the effort.
>
>A cluster is generally used to provide load balancing and/or parallel 
>computing solutions.  In a load balance solution file usage and access is 
>primary while a parallel solution needs memory usage and access to be 
>primary.  In either case the programs found on the nodes of the cluster are 
>identical (excluding master/slave issues) since the goal is essentially a 
>resource bottleneck solution for a single logical process.
>
>Amazon is a good example of where a load balance solution is needed while 
>Lucas Studios is a good example where a parallel computing solution is 
>needed.
>
>--
>Greg Edwards
>New Age Software, Inc. - http://www.nas-inet.com
>======================================================
>Galactic Outlaw        - http://goutlaw.nas-inet.com
>   The ultimate cyberspace adventure!
>
>
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>https://ntlug.org/mailman/listinfo/discuss


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