I am a web developer, recently a need has been created to use Load Balancer. I am new in this area. I have chosen which LB to use, its not like it matters so much, HAProxy has all the features needed for as far as I've researched.
My concern is that, with software based load balancer, It does not "redirect" user to the backend server, the loadbalancer stays in the middle, so all the traffic bandwith and tcp connections, will stay in the middle. Did I get it right?
If yes for the question before, then how can I make a solution so the load balancer will not stay in the middle with Client – Backend server?
Also, I need a "source" lb type, because webapp uses session, and I need users to connect to the same servers they've been using.
Thank you in advance.
Best Answer
Not sure which way most of your traffic flows, if it's
client -> server, orserver -> client, but if it's the later, you might be interested in using (or checking out, at least) the Linux Virtual Server (LVS) which is(Excerpt from the website).
To get the traffic of your backend servers directly, without "something in between" to the / your clients, use Direct Routing. You'll find more information in this link, but, to get an idea how this does look like:
Now you could say...well, this sounds nice and fancy in theory, but come on, the website reads "Latest Press News... Wednesday, August 8, 2012"...we're in 2016 now. Yes, you would be completely right then, besides that
LVSis proven and rock solid...did I recommend to have a look at least?The Wikimedia Foundation does use it, as many others do, and here is one last image showing the setup in 2010.