Le mercredi 18 août 2010 00:32:55, Turlapati, Sreenivasa a écrit : > Hi, > > We are not trying to load balance across our databases. > We got simple client - server architecture. > Here is the brief description . when the application users logged into the > Front End(Client) they do certain actions based on their privileges. When > the user does the action the FE connect to the backend process. The > backend does all the business logic and send the response back to the FE. > > As the user base has increased tremendously, we are planning to run 5 to 10 > instance of the backend process and employ the HAProxy load balancer. > > We want to load balance the requests through the user id and based on the > action what he did at the FE. ( The FE sends the user id , action name > etc to the backend process). > > We plan to create to set of backend groups where we want to route the > action A & C to group A and action B & D to group B. So we have to scan or > read our incoming request in Haproxy and employ the rules to route to > different groups based on what action/request the user did in FE.
From what you said, a simpler design could be to manage this logic in the client side. - group A and group B are 2 proxies on different ports in your HAProxy instance, with their own backend servers. - in your client, * action A & C connects to the group A port. * action B & D connects to the group B port. This looks less tricky than analyzing the TCP traffic. -- Cyril Bonté
