Hi Enrico,
I can't speak for why postscript behaviour has changed, but this is a known
issue for other applications that hold a file open across time instead of
opening it to write / closing it after write. Logrotate allows you to put in a
postrotate / endscript sequence that can be used to make the application do
whatever is necessary to make it re-open it's log file (or anything else...)
Any lines between the line containing 'postrotate' and the line containing
'endscript' will be run after the rotate job has rotated the files. So in
between you can stop / start postfix or restart postfix or any other action
that can cause it to re-process it's log file.
For example...
postrotate
service postscript restart
endscript
someone else might know if postscript will handle kill -HUP (kill -1) correctly
(I'm running an older version of postscript that doesn't exhibit this
behaviour, it handles the log being switched under it just fine) or you could
try it out.
ML
-----Original Message-----
From: owner-postfix-us...@postfix.org <owner-postfix-us...@postfix.org> On
Behalf Of Enrico Morelli
Sent: 09 August 2019 08:33
To: postfix-users@postfix.org
Subject: Postfix log
Dear,
I upgraded Debian from version 9 to 10 and consequently postfix 3.1.12 to
3.4.5. I'm checking log with multitail in real time and with the new postfix
version, I've a strange behavior. When the logs rotate, postfix continues to
write in the old file renamed mail.log.1 instead of the new mail.log. I've to
restart postfix to solve the problem.
I created a postfix file in logrotate.d, as the following, that worked before
the update:
/var/log/mail.info
/var/log/mail.warn
/var/log/mail.err
/var/log/mail.log {
weekly
missingok
notifempty
delaycompress
compress
create 640 root adm
rotate 3650
size 10M
}
Any suggestion?
--
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Enrico Morelli
System Administrator | Programmer | Web Developer
CERM - Polo Scientifico
via Sacconi, 6 - 50019 Sesto Fiorentino (FI) - ITALY
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