On Mon, Apr 06, 2020 at 02:53:25PM +0100, Dominic Raferd wrote:
> Our mail log file, where postfix messages end
> up, is also a destination for logs from other mail-related services,
> all handled by (systemd via) rsyslog...
More accurately, handled by rsyslog (via systemd). It is the
(mis)handling by systemd that I'm warning about. While the overall
goals of systemd are generally laudable, the implementation does not
always merit praise.
In particular, the performance of the logging sub-system has been
substantially degraded, which combined with an increased risk of
reordering messages, means that applications now need to be prepared to
bypass the resulting mess, and manage their own logging. :-(
--
Viktor.
