Shannon,
I have used several different load balancers, primarily LVS, in the past
and I am real enjoy using Haproxy. It is very easy to configure and
maintain. Plus the list is very quick and helpful in responding to
questions. The stats page helps me locate any potential problems with
my backend servers.
**
You would setup your haproxy systems with the IP for your users to hit
(two haproxy servers running heartbeat or keepalived) for failover and
maintenance on the systems. In your configuration file you would set
your web servers on their real IP's. Haproxy will then proxy your
requests in round robin to your apache servers, but if you need to pin
someone to a specific server then set the appropriate cookie entry in
the haproxy configuration file and that user will go to the same web
server until the cookie times out.
Read over the documentation so that you set the proper configuration
settings and if you have any questions, ask the group. :-)
Thanks
Joe
Shannon Watts wrote:
Hi,
I came across your site while searching for a software based load
balancer solution.
We are in the process of implementing a 2-server (Apache web server)
solution, which will be running on Linux RedHat Enterprise Advanced
v.5.2 on Dell M600/M610 blade hardware.
Both Apache web servers will be "internal" (behind the firewall) for
an internal application and Oracle database that will be hosted on an
HPUX 11x server.
The main purpose of the load balanced Apache servers is to take some
of the processing load/traffic off of the HPUX server.
What "software" based load balancing solution would you recommend,
given that we have limited Linux/Apache experience, but want to
achieve load balancing?
My research tells me that the following are the most popular solutions:
# HAproxy <http://haproxy.1wt.eu/> [1wt.eu]
# Distributor <http://distributor.sourceforge.net/> [sourceforge.net]
# Crossroads <http://crossroads.e-tunity.com/> [e-tunity.com]
# Pen <http://siag.nu/pen/> [siag.nu]
# Balance/BalanceNG <http://www.inlab.de/balance.html> [inlab.de]
# Pound <http://www.apsis.ch/pound/index_html> [apsis.ch]
Thanks.
Best Regards,
Shannon Watts
Systems Engineer, Senior Market
BlueCross BlueShield of North Carolina
E-mail: [email protected]
Office: 336-201-4122
Cell: 336-399-7938
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