[lvs-users] LVS vs commercial LB in critical environment

Sashi Kant sashi.kant at eng.admob.com
Fri Nov 20 17:56:17 GMT 2009

Hi Simm,

We use LVS in our Ad Serving & analytics platform, serving more than half a billion requests every day.  We never had LVS specific issue in our environment. Just make sure you are using high end network card and switch on the hardware side. LVS will keep chugging along as your traffic grows. We use LVS in "direct server [DR] return mode".

On Nov 20, 2009, at 5:41 AM, Siim Põder wrote:

> Hi
> I have a bit of a religious question: is LVS good enough to use in
> "critical environments" (however you would feel like defining it)? We
> are currently using LVS as load balancer and netfilter as firewall in
> pretty much everywhere including several critical places (like PCI
> infrastructure) and in operations team are quite pleased with the
> functionality, performance and hackability.
> However, some conservatives have raised the questions wether open
> source is dependable enough to use in situations where a lot of money
> and customers are involved and have suggested that we should be using
> F5, Citrix or Cisco instead (for load balancer, firewall and content
> inspection). Their concern is that those commercial tools would get
> much more testing (by customers) in critical infrastructure than open
> source would as open source is mostly used in less demanding places.
> Basically, they are saying that everyone else is using commercial
> tools and therefore we should, too.
> Understandably you may not want to disclose too much information, but
> does anyone know where LVS (or netfilter - OT in this list but
> relevant for my personal case) is used in high-profile sites or
> setups? Any concrete or anonymous examples or links to previous
> similar discussions?
> I tried interrogating google and mailing list archives but did not
> find many examples to win this techincally irrelevant but emotionally
> (for some people) important religious war. If there are a few good
> examples, hopefully it will help me and anyone else facing similar
> criticism in the future..
> Siim
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