On Sat, 2007-09-08 at 15:04 +0200, Farkas Levente wrote: > Timo Sirainen wrote: > > But since there's still a chance that index files could break (although > > v1.1 tries harder than v1.0 to fix problems), it would be nice if the > > flags/keywords were written to metadata block once in a while. So if the > > index files are lost, flag changes wouldn't be completely lost. Metadata > > updates of course use disk I/O so they shouldn't be done too often. > > > > I was thinking that the metadata could be updated: > > > > - if IMAP connection has been idling for 4 hours (not changing flags) > > - when closing mailbox and there are changes older than 4h > > - immediately if there are changes older than 24h (whenever mailbox is > > being synced, e.g. SELECT/NOOP/STATUS) > > > > Or something like that. Those rules can of course be changed, but I'm > > not sure if I should bother making them configurable from dovecot.conf. > > There are already too many settings. > > what about a maintanance srcipt/daemon which can be run from cron and > every sysadm can decided when and how often he'd like to update metadatas?
That would require keeping the "<mailbox>: <last updated>" information in some central database. Otherwise if you had lots of mailboxes it would waste a lot of disk I/O in such run. And I'm not really interested in creating such a database at least yet. :)
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