[Dovecot] distributed mdbox

[James Devine]

Anyone know how to setup dovecot with mdbox so that it can be used through
shared storage from multiple hosts?  I've setup a gluster volume and am
sharing it between 2 test clients.  I'm using postfix/dovecot LDA for
delivery and I'm using postal to send mail between 40 users.  In doing
this, I'm seeing these errors in the logs

Mar 21 09:36:29 test-gluster-client2 dovecot: lda(testuser34): Error: Fixed
index file /mnt/testuser34/mdbox/storage/dovecot.map.index: messages_count
272 -> 271
Mar 21 09:36:30 test-gluster-client2 dovecot: lda(testuser28): Error: Log
synchronization error at seq=4,offset=3768 for
/mnt/testuser28/mdbox/storage/dovecot.map.index: Append with UID 516, but
next_uid = 517
Mar 21 09:36:30 test-gluster-client2 dovecot: lda(testuser28): Error: Log
synchronization error at seq=4,offset=4220 for
/mnt/testuser28/mdbox/storage/dovecot.map.index: Extension record update
for invalid uid=517
Mar 21 09:36:30 test-gluster-client2 dovecot: lda(testuser28): Error: Log
synchronization error at seq=4,offset=5088 for
/mnt/testuser28/mdbox/storage/dovecot.map.index: Extension record update
for invalid uid=517
Mar 21 09:36:30 test-gluster-client2 dovecot: lda(testuser28): Warning:
fscking index file /mnt/testuser28/mdbox/storage/dovecot.map.index
Mar 21 09:36:30 test-gluster-client2 dovecot: lda(testuser34): Warning:
fscking index file /mnt/testuser34/mdbox/storage/dovecot.map.index


This is my dovecot config currently:

jdevine at test-gluster-client2:~> dovecot -n
# 2.0.13: /etc/dovecot/dovecot.conf
# OS: Linux 3.0.0-13-server x86_64 Ubuntu 11.10
lock_method = dotlock
mail_fsync = always
mail_location = mdbox:~/mdbox
mail_nfs_index = yes
mail_nfs_storage = yes
mmap_disable = yes
passdb {
  driver = pam
}
protocols = " imap"
ssl_cert = </etc/ssl/certs/dovecot.pem
ssl_key = </etc/ssl/private/dovecot.pem
userdb {
  driver = passwd
}