Package: haproxy Version: 2.2.8-1~bpo10+1 All released versions of haproxy 2.2 contain a nasty bug which will continue to override the backend server status as UP, when the agent-check returns UP, although the http-check reports the backend as down.
The issue was fixed upstream[1] and we would like to request the fix to be released with the Debian backports version, as this may cause unexpected outages. Best, Stefan. [1] Original bug report - https://github.com/haproxy/haproxy/issues/1176
