Hi, I'm not sure how many people use the feedback functionality in HAProxy? But I just wanted let anyone interested know that we've written a new version (and why).
The HAProxy server feedback mechanism is compatible with the LVS/Ldirectord one (also open source). With our previous open source Windows-based agent we had some annoying performance issues under load (Windows WMI library etc.). The new GO agent is MUCH faster, so we're very happy with it. We keep this (somewhat messy) blog updated with information about the windows feedback agent: https://www.loadbalancer.org/blog/open-source-windows-service-for-reporting-server-load-back-to-haproxy-load-balancer-feedback-agent/ All the source code for both versions is available on Github: NEW: https://github.com/loadbalancer-org/go-feedback-agent OLD: https://github.com/loadbalancer-org/windows_feedback_agent Most of our Linux users just build a custom agent by hand (it's not hard...), I've heard of Herald: https://medium.com/helpshift-engineering/herald-haproxy-load-feedback-and-check-agent-1b8749a13f02 Does anyone know of any other options for server-side agents? Thanks, Malcolm Turnbull Loadbalancer.org Ltd. www.loadbalancer.org +44 (0)330 380 1064

