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> 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. This has two benefits: > > 1) lower IO for the most common case. We need to update the > cyrus.index file anyway to record the new MODSEQ. > 2) owner seen becomes shared seen if you switch to shared seen > mode on the mailbox, so that you don't wind up with one huge > file full of shared seen data if you have a lot of shared > mailboxes. > > Seen files were actually a lot of extra IO on 2.3, small files > with multiple fsyncs! > > Bron. Hello, I am beginning to see this. Is there a mecanism to read from these .seen files to recover this data during a migration? Because from what I am seeing, if I move a .seen file from the old server, the new server never reads from it and all my seen data is lost. Thanks in advance, Ron. |
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