On Sun, 30 Mar 2025 07:37:38 +0200 Paul Neuwirth via Postfix-users <postfix-users@postfix.org> wrote:
> On Sat, 29 Mar 2025 10:21:53 -0400 (EDT) > Wietse Venema via Postfix-users <postfix-users@postfix.org> wrote: > > > Paul Neuwirth via Postfix-users: > > > On Fri, 28 Mar 2025 12:41:45 -0400 (EDT) > > > Wietse Venema via Postfix-users <postfix-users@postfix.org> wrote: > > > > > > > Paul Neuwirth via Postfix-users: > > > > > Hello group, > > > > > > > > > > Since a few days I have massive problems with lockfiles > > > > > blocking the mailboxes (type storage, /var/mail/user). > > > > > don't know if it's the right list. may more concern dovecot. > > > > > > > > > > postqueue is full of > > > > > 944C223FC2 17905 Fri Mar 28 06:02:01 XXX > > > > > (cannot update mailbox /var/mail/pane for user XXX. unable to > > > > > create lock file /var/mail/XXX.lock: File exists) XXX > > > > > > > > That looks like a Postfix error message (*). > > > > > > > > Are you using Postfix to deliver mail, and Dovecot to read mail? > > > > > > > > Wietse > > > > > > > > (*) The function dot_lockfile() produces the text "unable to > > > > create lock file /var/mail/XXX.lock: File exists)", and the > > > > function deliver_mailbox_file() prepends the text "cannot update > > > > mailbox /var/mail/XXX for user XXX." > > > > _______________________________________________ > > > > > > yes, that's right > > > > > > from /var/log/mail on last restart: > > > 2025-03-29T06:24:41.124754+01:00 XXX dovecot: master: Error: > > > fstat(/var/lib/dovecot/instances.lock) failed: No such file or > > > directory 2025-03-29T06:24:41.125299+01:00 XXX dovecot: master: > > > Error: file_dotlock_open(/var/lib/dovecot/instances) failed: No > > > such file or directory > > > > > > files do exists, I even made folder and files world-readable to > > > check, they are owned by root:root > > > > > > # ls -la /var/lib/dovecot/ > > > total 20 > > > drwxr-xr-x 2 root root 100 Mar 29 06:24 . > > > drwxr-xr-x 151 root root 4096 Mar 28 21:16 .. > > > -rw------- 1 root root 0 Feb 14 2010 auth-success > > > -rw-r--r-- 1 root root 62 Apr 16 2020 instances > > > -rw-r--r-- 1 root root 0 Mar 29 06:24 instances.lock > > > -rw-r--r-- 1 root root 211 Jan 22 2017 mounts > > > -rw-r--r-- 1 root root 230 Jan 22 2017 ssl-parameters.dat > > > > Are they looking at the *same* /var/lib/dovecot/instances.lock > > file? If one process is chrooted or containerized, "the same" > > pathname will resolve to different tsrgets. > > > > Wietse > good point. > I already checked superficially and came to the conclusion no. > > not that sure about. but doesn't seem so: > don't find anything about chroot in postfix configs. > the main running executable of postfix is > /usr/lib/postfix/bin//master - but there's only a bin folder (and some > files in /usr/lib/postfix, cwd is /var/spool/postfix > > dovecot also nothing about chroot in config > cwd and most open files is /var/run/dovecot doesn't seem to be a > (ch)root-dir either. I again think I've got this solved. Problem was allegedly very big E-Mails (10-30MiB) in the user's mail-file. I think that would be no issue with mbox format? _______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
