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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