httpd-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Adam Martin" <Adam.Mar...@infor.com>
Subject RE: [users@httpd] High availability concept question
Date Fri, 02 May 2008 14:52:48 GMT

Guy and Jet, thank you for taking the time to respond.  I appreciate it.

-----Original Message-----
From: Guy Waugh [mailto:gwaugh@scu.edu.au] 
Sent: Wednesday, April 30, 2008 6:51 PM
To: users@httpd.apache.org
Subject: Re: [users@httpd] High availability concept question

Adam Martin wrote:
> If I load balance between two 2.2 Apache HTTP Servers on two separate 
> physical servers, what type of device or software can I place in front

> of the web servers to allow users to access either web server via one
IP 
> Address?  I did a quick search in the documentation but wasn't sure
what 
> to look for.  Would it be as simple as pointing the users to a router 
> configured with some type of forwarding?  How do I prevent this device

> from becoming a single point of failure?  I know these questions are
not 
> Apache specific, at least I don't think they, but after being a member

> of this list for a couple of months and seeing the level of expertise
on 
> this board I figured someone could point me in the right direction.  I

> am not asking for a how-to response, just concepts on where to start
to 
> start looking or which documentation I should look at.  Thanks.

One (open source) solution would be to use an LVS load balancing server 
(http://www.linuxvirtualserver.org) to do the load balancing. If you 
want high availability (no single point of failure in the load balancer)

couple LVS with heartbeat (http://www.linux-ha.org), so that if your 
active load balancer fails, the inactive load balancer takes over.

There is a learning curve with both those technologies, so if you don't 
have much time (or even if you do), it might be worth a visit to 
http://www.ultramonkey.org, Simon Horman's project site, in which he 
supplies prebuilt packages to combine LVS and heartbeat together.

---------------------------------------------------------------------
The official User-To-User support forum of the Apache HTTP Server
Project.
See <URL:http://httpd.apache.org/userslist.html> for more info.
To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
   "   from the digest: users-digest-unsubscribe@httpd.apache.org
For additional commands, e-mail: users-help@httpd.apache.org



---------------------------------------------------------------------
The official User-To-User support forum of the Apache HTTP Server Project.
See <URL:http://httpd.apache.org/userslist.html> for more info.
To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
   "   from the digest: users-digest-unsubscribe@httpd.apache.org
For additional commands, e-mail: users-help@httpd.apache.org


Mime
View raw message