tcpload-balancinghaproxypersistent-connection

TCP load balancing in HAProxy with persistent TCP connections

Currently, I have a single client (component) having a single persistent TCP connection with the server(another component), and messages are exchanged asynchronously. I wanted to have a load balancer (HAProxy preferably) where the connection b/w client and load balancer as well as b/w load balancer and multiple servers as persistent TCP connection.

I know HAProxy can easily be set up for the TCP load balancing, but I wanted to know does it support persistent connections out of the box. Would be great help if someone points me in the right direction. Thanks.

Solution

  • Yes it supports persistent TCP connections right out of the box. A simple implementation in the haproxy looks like this

    listen tcpProxy 0.0.0.0:7000 
    mode tcp 
    balance source
    server tcp1 ip1:port check maxconn 10000
    server tcp2 ip2:port check maxconn 10000

    Hope this helps