Andreas Metzler via Exim-users <exim-users@???> (Do 27 Jul 2023 19:04:30 CEST):
…
> > Regarding your question: I think, "exec" is the right answer for the
> > current Exim versions. (Somewhen I started working on "Type=notify", but
> > that's nothing that's ready yet.)
>
> You are using -bdf instead of -bd for the Type=exec example. Afaict
> the major effect should be a tiny speedup since a fork() and closing in
> stdin/out/err is avoided. Since exim would not write to stdout/err this
> should be it. Or am I missing something?
-bd asks Exim to fork, which makes it hard for Systemd to
supervise it. Using -bdf Systemd can track the process it created.
Exim writes to std{out,err} in case of debugging options on the command
line. If I'm not wrong, currently Exim isn't capable of reliable writing
logs to std{out,err}, but I can imagine implementing this (for some edge
cases).
--
Heiko
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