Hi, On Sat, Oct 22, Willy Tarreau wrote: > Another important point, when you say you restart every 2ms, are you > certain you have a way to ensure that everything is completely started > before you issue your signal to kill the old process ? I'm asking because > thanks to the principle that the wrapper must stay in foreground (smart > design choice from systemd), there's no way for a service manager to > know whether all processes are fully started or not. With a normal init, > when the process returns, all sub-processes have been created.
This is probably a bit off topic, but there's sd_notify call (and [Service] Type=notify) where service can notify systemd that it's done starting/reloading configuration: https://www.freedesktop.org/software/systemd/man/sd_notify.html I don't know if systemd-wrapper would call: sd_notify(0, "RELOADING=1"); ... restart sd_notify(0, "READY=1"); if this would prevent systemd from trying to do multiple reloads before haproxy has finished starting. -Jarno -- Jarno Huuskonen
