I've recently upgraded to 1.0.10 in hopes that this problem would go away but no luck. I've got some users at my company with large inboxes on maildir (say 22,000 messages). Their mailboxes are hosted on nfs and dovecot is configured to do dotlocking. Still I see messages like this continually in the logs (sometimes every hour or so):
server dovecot: IMAP(user): dotlock /home/user/Maildir/dovecot.index.log.lock was immediately recreated under us server dovecot: IMAP(user): file_dotlock_create() failed with file /home/user/Maildir/dovecot.index.log: No such file or directory server dovecot: IMAP(user): Our dotlock file /home/user/Maildir/dovecot-uidlist.lock was overridden (kept it 0 secs) server dovecot: IMAP(user): Duplicate file in uidlist file /home/user/Maildir/dovecot-uidlist: 1162416499.010493.mbox:2,Sa server dovecot: IMAP(user): Maildir /home/user/Maildir sync: UID inserted in the middle of mailbox (48573 > 1, file = 1162416499.010493.mbox:2,Sa)
or this:
server dovecot: IMAP(user): dotlock /home/user/Maildir/dovecot.index.log.lock was immediately recreated under us server dovecot: IMAP(user): file_dotlock_create() failed with file /home/user/Maildir/dovecot.index.log: No such file or directory server dovecot: IMAP(user): Duplicate file in uidlist file /home/user/Maildir/dovecot-uidlist: 1167674195.83666_2.tandoori.schrodinger.com:2,Sklwv server dovecot: IMAP(user): Maildir /home/user/Maildir sync: UID inserted in the middle of mailbox (34969 > 1, file = 1167674195.83666_2.server.com:2,Sklwv) server dovecot: IMAP(user): Corrupted transaction log file /home/user/Maildir/dovecot.index.log.2: invalid indexid (1204046496 != 1204055346)
it seems that every time this sort of thing happens the mail client (thunderbird) sits and rebuilds it's mailbox info for as long as 20-30 minutes, during which time it is unusable. I suspect this happens with other users as well but since they have smaller inboxes they don't notice the long delays.
Also this is not linked to version 1.0.10, I've been seeing on and off with the previous version (1.0rc17).
Here's the 'dovecot -n' output. I should add that the default is for users to use mbox but some users (like the above one) use maildir via a separate dovecot.passwd file. Server is FreeBSD 4.7.
# 1.0.10: /usr/local/etc/dovecot.conf base_dir: /var/run/dovecot/ protocols: imaps ssl_cert_file: /usr/local/openssl/certs/server.crt ssl_key_file: /usr/local/openssl/private/server.key login_dir: /var/run/dovecot//login login_executable: /usr/local/libexec/dovecot/imap-login login_greeting_capability: yes verbose_proctitle: yes first_valid_uid: 700 last_valid_uid: 9999 first_valid_gid: 100 last_valid_gid: 200 mail_extra_groups: mail default_mail_env: mbox:%h/mail:INBOX=/var/mail/%u mail_location: mbox:%h/mail:INBOX=/var/mail/%u mmap_disable: yes lock_method: dotlock mbox_read_locks: dotlock mbox_write_locks: dotlock imap_client_workarounds: delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep auth default: passdb: driver: pam passdb: driver: passwd-file args: /usr/local/etc/dovecot.passwd passdb: driver: passwd userdb: driver: passwd-file args: /usr/local/etc/dovecot.passwd userdb: driver: passwd
-- Phil Hollenback hollenba@schrodinger.com Schrodinger, Inc.