migration and seen flag

[Bron Gondwana]

On Tue, Jan 10, 2012 at 11:17:31AM -0500, Adam Tauno Williams wrote:
> > > [mailto:info-cyrus-bounces+info-cyrus=ornl.gov at lists.andrew.cmu.edu] On
> > > Behalf Of Bron Gondwana
> > > Seen data is only stored in .seen files for shared or other user
> > > mailboxes.  The seen data for the mailbox owner is stored in the
> > > cyrus.index.  
> > Does this mean the owner's seen data gets lost if the mailbox is reconstructed?

Only if you delete the cyrus.index, in which case you also lose all
the rest of the flag and modseq data and uidvalidity and stuff.

> Seen state persisted, at least for user folders, when I did my 2.3.x to
> 2.4.x migration.  I *thought* the same was true for shared folders, but
> I could have been wrong.

Yes, it definitely persists.  The upgrade process reads the owner's
seen file and applies the flags.

Bron.