01-15-2019
Hello,
Long time passed. I have come across the same problem definition at another board.
Quote:
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.
So, the final question is: How to redirect a request to another ip
address:port
Normally in current configuration it forwards incoming requests, not redirecting. So it cause 2x traffic.
Keep searching..
Kind regards
Boris
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fair(7) BSD Miscellaneous Information Manual fair(7)
NAME
fair -- simple TCP load balancing service
DESCRIPTION
fair is a load balancer for TCP connections. It can be used to distribute incoming connections for SMTP, HTTP or any other TCP service to
multiple hosts, distributing the load as evenly as possible.
fair consists of two daemons. The carrousel is the front-end; it keeps track of back-end hosts and their status, and forwards incoming con-
nections to the back-ends in such a way that the load is distributed fairly. The transponder runs on the back-end hosts, it registers with
the carrousel and sends it status information. The TCP connections forwarded by the carrousel are not sent to the transponder daemons but
are sent directly to the desired service running on the back-end host. Both daemons share a single configuration file.
EXAMPLES
The following example shows how to set up fair to service HTTP connections and to distribute them over back-ends in the 192.168.1.0/24 sub-
net.
The configuration file /etc/fair.conf contains the following:
WorkerService = http
BalancerService = http
AllowUDP = ^192.168.1.[0-9]+$
On www.example.com, the front-end server receiving the incoming HTTP connections, just run:
carrousel
On each of the back-ends run:
transponder www.example.com
SEE ALSO
carrousel(8), transponder(8), fair.conf(5)
Debian GNU/Linux June 1, 2019 Debian GNU/Linux