Dear Jerrale, Sahil and Seth,
Thanks a lot for your answers :
Le 13.06.2010 03:15, Jerrale Gayle a écrit :
a) I have a very strange problem with postfix, it worked for more
than one year without problem, and now, for about one month some
incoming emails started to fail in the night (approx. between 4AM
and 5AM) but not every day, with errors like :
* Out: 451 4.3.0<em...@domain.ch>: Temporary lookup failure
* Out: 451 4.3.0 Error: queue file write error
[ .. ]
Jun 11 04:45:21 cirrus postfix/trivial-rewrite[3636]: warning:
dict_ldap_connect: Unable to bind to server ldap://localhost:389 as
cn=****, ou=****
Your LDAP server stops responding; fix that.
The default config for Logrotate starts at, guess when, 4 AM!!!!
This looks interesting !
During this time, LDAP's logs get rotated and then LDAP is suppose to be
stopped and started at the END. Your logrotate COULD, however, be
stopping LDAP service for the entire duration of logrotate and THEN
started at the end of Logrotate. I think this is your problem!
I also think it has something to do with backups or something like that,
and as logrotate is not in "user crontab" but somewhere in the system I
missed it.
But after verification (I thought you found the problem) but logrotate
is only started once a week, and the dates doesn't match the problem
(even if you were right, the hours match perfectly !) and LDAP logs are
not rotated at all...
I'm sure you had the right idea : "find what is happening between 4AM
and 5:30AM to understand what is the problem", but what else could it be
? I checked with backups, with other tasks in crontab... I'm sure it's
something like that (???)
Thanks a lot for you help, and if you have an other idea, it would be
great :-))
Have a nice week-end !
Denis
