[nycbug-talk] load balancing

Trish Lynch trish
Thu Oct 27 11:09:29 EDT 2005

On Thu, 27 Oct 2005, Jesse Callaway wrote:

> On Thursday 27 October 2005 10:06 am, Okan Demirmen says:
>> On Wed 2005.10.26 at 23:41 -0400, Jesse Callaway wrote:
>>> I'm going to make a load balancer for some web servers and I remember cookies being involved the last time. I forget what that was about and don't want to do it again. Is there anything I'm missing with just going for a carp based solution?
>> depends on what the session requirements are of the application.
> unfortunately I don't know much about the web app yet, and this long term session life came into discussion without anyone knowing the specifics. I'll find out today and hopefully be able to figure it all out.
> The cookies were injected by the load balancer (serious mangling) and this was how it kept track of what clients were talking to which servers. Seems a bit of an overkill, but if users need to be logged in and the application instances don't communicate through a backend, then this is what the solution can be.
> -jesse

I hate to say this, because I essentially make a living out of replacing 
Linux systems, but LVS and keepalived on linux is the best open source 
load balancing system I've seen. It can be a pain to set up, but once its 
working its well behaved and does everything a Cisco lbs can do.


Trish Lynch					   trish at bsdunix.net
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