Thanks for Dovecot!
I am currently testing several scenarios to help determine how to best implement
dovecot for our environment. One scenario of particular interest is Maildir +
NFS, load balanced between several servers running dovecot.
I am not sure anyone would ever want to implement what I am about to describe
here, but none-the-less, I thought I would mention it to the list to see if
anyone has had the same experience, or could possibly help.
What I am using to _test_ is a single server running RedHat Server 5 + Xen. Dom0
is acting as my NFS server, and a RedHat Server 5 guest running on the same
machine is acting as my NFS client and dovecot server. I have a single directory
exported from the NFS server which contains several home folders with inboxes
stored in Maildir format.
The problem I am having is when I open a POP3 connection from a separate
machine, I see the following messages on the virtual server in /var/log/maillog
and I am unable to retrieve mail:
file maildir-uidlist.c: line 139 (maildir_uidlist_unlock): assertion failed:
(uidlist->lock_count > 0)
and more often:
Mailbox init failed top=0/0, retr=0/0, del=0/0, size=0
It appears to be an issue with the login not having the proper permissions to
create the dovecot.uidlist file, however, when I log in locally to the dovecot
server with the POP3 account, I can read+write in the directory without
problems.
I suspect that I am missing something simple, but cannot seem to figure it out.
dovecot-1.0-1.2.rc15.el5
RedHat Server 5
kernel: 2.6.18-8.1.14.el5xen
dovecot -n:
shutdown_clients: no
login_dir: /var/run/dovecot/login
login_executable(default): /usr/libexec/dovecot/imap-login
login_executable(imap): /usr/libexec/dovecot/imap-login
login_executable(pop3): /usr/libexec/dovecot/pop3-login
login_greeting: Server ready.
mail_location: maildir:~/.maildir:INDEX=/var/spool/dovecot/%u
maildir_copy_with_hardlinks: yes
mbox_write_locks: dotlock fcntl
mail_executable(default): /usr/libexec/dovecot/imap
mail_executable(imap): /usr/libexec/dovecot/imap
mail_executable(pop3): /usr/libexec/dovecot/pop3
mail_plugin_dir(default): /usr/lib/dovecot/imap
mail_plugin_dir(imap): /usr/lib/dovecot/imap
mail_plugin_dir(pop3): /usr/lib/dovecot/pop3
pop3_reuse_xuidl(default): no
pop3_reuse_xuidl(imap): no
pop3_reuse_xuidl(pop3): yes
pop3_lock_session(default): no
pop3_lock_session(imap): no
pop3_lock_session(pop3): yes
auth default:
passdb:
driver: ldap
args: /etc/dovecot-ldap.conf
userdb:
driver: ldap
args: /etc/dovecot-ldap.conf
nfs mount options:
rw,rsize=32768,wsize=32768,hard,fg,lock,nfsvers=3,tcp,retrans=0,noac
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