Wietse Venema wrote:
Noel Jones:
Wietse Venema wrote:
Something that will drastically cut the time per session:
smtpd_timeout = ${stress?10s}${stress:300s}
I would be concerned about sites that are chronically short of
smtpd processes with an inexperienced or inattentive admin.
Maybe 20s~30s rather than 10s. That's still 10x or more
better performance under stress, and 30s has been shown to be
safe for everyday use.
I see that observation as an argument for < 30s timeouts under
stress :-)
(The idea is to help properly configured sites primarily. Sites
that are permanently overloaded will already be missing some email,
due to TCP-level or SMTP-level timeouts.)
Yes, I see that too. I'm concerned about the possibility of
stress=yes for an extended period of time with no one at the
wheel.
I agree this is an edge case and should only affect servers
that are already somewhat broken. I'm just trying to think of
robust defaults that won't give the appearance of making
things worse.
--
Noel Jones
