-----Original Message----- From: dovecot-bounces@dovecot.org [mailto:dovecot-bounces@dovecot.org] On Behalf Of Timo Sirainen Sent: Tuesday, October 16, 2012 10:16 PM To: Fred Kilbourn Cc: dovecot@dovecot.org Subject: Re: [Dovecot] Difference between Indexing and Rescan in FTS
On 17.10.2012, at 2.14, Fred Kilbourn wrote:
I've had squat running on dovecot 2.0 and have been updating all users mailbox indexes nighty via cron with this command:
doveadm -v search -A text xyzzyx
doveadm index is a bit more efficient.
I've just updated to 2.1 and I'm migrating to lucene indexes, but reading the documentation I'm having a hard time understanding the semantic differences between indexing and rescanning.
doveadm fts rescan makes sure that 1) all of the old messages are indexed and 2) there are no extra (already deleted) messages indexed. So it's basically repairing fts index. You probably shouldn't run it automatically, or at least not very often.
Okay, you've clarified that for me.
I understand that rescan isn't a nightly task, but could be run every now and then periodically. How often might be appropriate if I wanted to do this as a maintenance task? Once a month?
Lastly, I'm trying to use the index command instead of the search command, but I can't figure out how to make it index every mailbox for every user. Is there a wildcard that can be used for the mailbox? Or do I need to iterate all the mailboxes with one command and run index however many times for each inbox?
Thanks for your help