[Dovecot] Dovecot over NFS

[James Devine]

I'm playing with running dovecot over NFS and I am running into some
issues.  I have followed the guide at  http://wiki2.dovecot.org/NFS and my
setup includes 1 nfs server and 1 client running postfix/dovecot.  In
testing I am running postal via the command:

postal -t 10 -c 10 localhost users399

The test file has a list of 399 users to deliver to.  I've provided a
sample of the errors I'm receiving and my configuration below, I am running
dovecot 2.0.19.  Any idea what I might be doing wrong and what I might do
to resolve it?  My ultimate goal is to setup multiple clients with director
so each user is still handled on a single machine, however with a single
machine I still seem to be having issues.





Here is a sample of some of the errors I'm seeing:

Jun  6 15:55:12 test-gluster-client1 dovecot: lmtp(12072, testuser130):
Error: mdbox /mnt/testuser130/mdbox/mailboxes/INBOX/dbox-Mails: Invalid
dbox header size: 0
Jun  6 15:55:12 test-gluster-client1 dovecot: lmtp(11999, testuser99):
Error: Log synchronization error at seq=2,offset=556 for
/mnt/testuser99/mdbox/storage/dovecot.map.index: Append with UID 2, but
next_uid = 3
Jun  6 15:55:14 test-gluster-client1 dovecot: lmtp(12047, testuser41):
Error: mdbox /mnt/testuser41/mdbox/mailboxes/INBOX/dbox-Mails: Invalid dbox
header size: 0
Jun  6 15:55:18 test-gluster-client1 dovecot: lmtp(12133, testuser138):
Error: Log synchronization error at seq=2,offset=556 for
/mnt/testuser138/mdbox/storage/dovecot.map.index: Append with UID 2, but
next_uid = 3
Jun  6 15:55:19 test-gluster-client1 dovecot: lmtp(12076, testuser217):
Error: mdbox /mnt/testuser217/mdbox/mailboxes/INBOX/dbox-Mails: Invalid
dbox header size: 0
Jun  6 15:55:19 test-gluster-client1 dovecot: lmtp(12047, testuser41):
Error: mdbox /mnt/testuser41/mdbox/mailboxes/INBOX/dbox-Mails: Invalid dbox
header size: 0
Jun  6 15:55:23 test-gluster-client1 dovecot: lmtp(11985, testuser166):
Error: mdbox /mnt/testuser166/mdbox/mailboxes/INBOX/dbox-Mails: Invalid
dbox header size: 0
Jun  6 15:55:23 test-gluster-client1 dovecot: lmtp(12072, testuser130):
Error: Log synchronization error at seq=2,offset=204 for
/mnt/testuser130/mdbox/mailboxes/INBOX/dbox-Mails/dovecot.index:
uid_validity updated unexpectedly: 1339019655 -> 1339019656
Jun  6 15:55:23 test-gluster-client1 dovecot: lmtp(11928, testuser130):
Error: Log synchronization error at seq=2,offset=204 for
/mnt/testuser130/mdbox/mailboxes/INBOX/dbox-Mails/dovecot.index:
uid_validity updated unexpectedly: 1339019655 -> 1339019656
Jun  6 15:55:24 test-gluster-client1 dovecot: lmtp(11954, testuser192):
Error: mdbox /mnt/testuser192/mdbox/mailboxes/INBOX/dbox-Mails: Invalid
dbox header size: 0
Jun  6 15:55:24 test-gluster-client1 dovecot: lmtp(12130, testuser128):
Error: mdbox /mnt/testuser128/mdbox/mailboxes/INBOX/dbox-Mails: Invalid
dbox header size: 0
Jun  6 15:55:27 test-gluster-client1 dovecot: lmtp(12076, testuser217):
Error: mdbox /mnt/testuser217/mdbox/mailboxes/INBOX/dbox-Mails: Invalid
dbox header size: 0
Jun  6 15:55:27 test-gluster-client1 dovecot: lmtp(12211, testuser60):
Error: mdbox /mnt/testuser60/mdbox/mailboxes/INBOX/dbox-Mails: Invalid dbox
header size: 0
Jun  6 15:55:27 test-gluster-client1 dovecot: lmtp(12112, testuser190):
Error: mdbox /mnt/testuser190/mdbox/mailboxes/INBOX/dbox-Mails: Invalid
dbox header size: 0
Jun  6 15:55:27 test-gluster-client1 dovecot: lmtp(12047, testuser41):
Error: Log synchronization error at seq=2,offset=204 for
/mnt/testuser41/mdbox/mailboxes/INBOX/dbox-Mails/dovecot.index:
uid_validity updated unexpectedly: 1339019658 -> 1339019659
Jun  6 15:55:27 test-gluster-client1 dovecot: lmtp(11937, testuser41):
Error: Log synchronization error at seq=2,offset=204 for
/mnt/testuser41/mdbox/mailboxes/INBOX/dbox-Mails/dovecot.index:
uid_validity updated unexpectedly: 1339019658 -> 1339019659
Jun  6 15:55:28 test-gluster-client1 dovecot: lmtp(11985, testuser166):
Error: mdbox /mnt/testuser166/mdbox/mailboxes/INBOX/dbox-Mails: Invalid
dbox header size: 0
Jun  6 15:55:30 test-gluster-client1 dovecot: lmtp(12130, testuser128):
Error: mdbox /mnt/testuser128/mdbox/mailboxes/INBOX/dbox-Mails: Invalid
dbox header size: 0






My dovecot config is:

auth_debug = yes
auth_debug_passwords = yes
auth_username_format = %Ln
auth_verbose = yes
base_dir = /var/run/dovecot-service/
disable_plaintext_auth = no
instance_name = dovecot-service
mail_debug = yes
mail_fsync = always
mail_location = mdbox:~/mdbox
mail_nfs_index = yes
mail_nfs_storage = yes
mail_plugins = quota
mdbox_rotate_size = 16 M
mmap_disable = yes
passdb {
  driver = pam
}
plugin {
  quota = dict:User quota::file:%h/mdbox/dovecot-quota
}
protocols = " imap lmtp pop3"
service auth {
  unix_listener auth-userdb {
    group = postfix
    mode = 0666
    user = postfix
  }
}
service imap-login {
  inet_listener imap {
    port = 10143
  }
}
service lmtp {
  inet_listener lmtp {
    port = 10024
  }
}
service pop3-login {
  inet_listener pop3 {
    port = 10110
  }
}
ssl = no
ssl_cert = </etc/ssl/certs/dovecot.pem
ssl_key = </etc/ssl/private/dovecot.pem
userdb {
  driver = passwd
}