[Dovecot] Bug? auth(default) Authentication client gave a PID of existing connection

[Timo Sirainen]

On Sun, 2008-10-26 at 10:02 -0700, Brandon Lamb wrote:
> I have four amd64 boxes, amd 9850, 4 gig ram, Debian lenny/sid running
> 2.6.26-1-amd64, using LVS to load balance pop3, imap, smtp traffic.
> NFS mailstore, 2 gige cards, eth1 being the private nfs backend
> network, eth0 is what talks to the world.

So the load balancer is randomly assigning the user to different
servers? Not really the preferred setup. I guess you've read
http://wiki.dovecot.org/NFS?

> login_processes_count: 15
> login_max_processes_count: 256

This problem and possibly others could maybe be solved by using the high
performance mode as described by http://wiki.dovecot.org/LoginProcess

> mail_location: maildir:~/:INDEX=/dovecot-index

Are index files on local disk or on NFS?

> mail_save_crlf: yes

This adds some extra disk I/O, probably better to set to "no" unless you
have a good reason.

> mmap_disable: yes
> mail_nfs_storage: yes

If indexes are on NFS, you should have mail_nfs_index=yes too.

> mailbox_list_index_disable: no

These aren't actually always disabled since the code is buggy..

BTW. Are you using Dovecot's deliver for new mails?
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