NFS & IMAP... Acting very bad.

[David Walker]

So I have recently upgraded my machines from gentoo, and am starting to 
have a major problem.  I have 2 servers (servera, and serverb) both 
running Ubuntu.  Servera has http, NFS, NIS, LDAP.  Serverb is running 
BIND, SMTP, Kerberos, and IMAP.  I got everything to work together, 
except 2 things.  1 sasl and smtp, for some reason I cant authenticate, 
but I have not given up working on that.

What I am having trouble with is major major LAG though IMAP.  User disk 
is on servera and IMAP is on serverb, with the obvious shared /home.  I 
can not figure out why there is about a 10-20 second lag on just seeing 
that their is new mail, then 5-10 seconds switching between email's.  So 
when I have filers splitting junkmail, and list's that I am on it can 
take 3-4 minutes before I can actually start reading through the mail.

Any ideas?

--
Dave