Comments on: Load Balancing Techniques

By: Dave

Dave — Wed, 17 Feb 2010 04:58:21 +0000

Mike – I’d have to look it up, but I think there is a way to see it with tcpdump. The idea is your web servers should not respond to arp requests for the VIP. Did u turn on arptables_jf?

By: Mike

Mike — Wed, 17 Feb 2010 03:23:28 +0000

Dave-

How can I check to see if ARP is enabled on the web servers. The config for lo:0 shows that arp is on, however I am being told that it is on but not arp’ing.

I can’t find anything that states how to test this.

By: cristian ditoiu

cristian ditoiu — Mon, 04 Jan 2010 22:36:07 +0000

Or you could try haproxy. http://haproxy.1wt.eu/
Used it for two years to balance 500MBS+ of http trafic .

By: Michael

Michael — Wed, 08 Jul 2009 06:51:41 +0000

Hi, I actually figured out my problem. I had a index.html page which was redirecting using the real server hostname. I replaced the hostname with the vip hostname and things started to work, not dns related.

By: Michael

Michael — Wed, 08 Jul 2009 02:23:47 +0000

Hi,

I’d to ask for some help in this matter. I’m working on a POC myself and have the same setup as you, except dns is not in place yet, but will be soon. I’m currently using /etc/hosts file on the node servers to bypass this for now.

My problem is when I hit the VIP via browser it’s returning the real hostname of the nodes instead keeping the VIP hostname like your POC. Would dns cause this kind of behavior? Any help is appreciated.

By: DaveK

Sat, 27 Jun 2009 13:35:08 +0000

Bonnie – your comments smell like advertising, but they are on topic, and I’m just so excited to have somebody post a comment on my blog! I added Kemp to the list of Hardware Load Balancers in the article. Good luck.

By: Bonnie

Bonnie — Fri, 26 Jun 2009 17:46:23 +0000

Do your computers go down easily? If so, this can cause you to lose a lot of money. Think about the costs associated with lost work. If you are experiencing this problem, you should look into getting a hardware load balancer. Definitely a cost effective way to help combat server issues. I use the loadmaster 2000 and it has worked out great…it was one of the cheapest ones i have found, but has really helped our company out in both saving money in the long run and with getting rid of the “downtime” that we were experiencing.

http://www.kemptechnologies.com/?utm_source=blog&utm_medium=pv&utm_content=zs&utm_campaign=home

By: Bonnie

Bonnie — Wed, 24 Jun 2009 14:49:26 +0000

Hope the comments are working alright. On the subject of load balancing, why not get the highest availability while not getting caught in high prices? Kemp’s got some great load balancers that are low priced and high in quality:

http://www.kemptechnologies.com/?utm_source=blog&utm_medium=pv&utm_content=zs&utm_campaign=home