On Wed, 2008-09-10 at 10:58 -0700, Jack Stewart wrote:
The question is has anyone, with Maildir and the INDEX= on NFS (i.e. dovecot.index and dovecot.index.cache, set mail_nfs_index to no.
How much worse is the mail_nfs_index=yes? Last I heard it made hardly a difference.
If so, was it better to turn maildir_copy_preserve_filename to on or did it help to turn if off.
That shouldn't make a noticeable performance difference. If it's "yes" it does one more uidlist lookup, but pretty much always the uidlist is already in memory in any case so it doesn't matter.
The other question is did you play with turning off atime updates or changing the acmin* values?
Dovecot doesn't care about atimes, so feel free to disable them.
I figure that the worst that can happen is that the dovecot.index.cache file will become corrupt, and dovecot will then rebuild it.
It's not the worst that can happen, but index file errors are probably more likely than other errors..