I've found that when going in one direction, using "backup -R" rather than mirror, works better. I'm going from mbox to sdbox, but doing roughly the same thing you are, rsync and then dsync.
Ken A. On 4/5/2013 10:40 AM, Bob Gustafson wrote: > > I'm moving/converting email from one system to another > > The source system is: > Dual core x86_64 > 6GB memory > 180 GB raid1 disks ext4 > Fedora 9 > Dovecot 1.0.15 > Maildir format > > The destination system is: > Dual core x86_64 > 2GB memory > 1TB raid1 disks ext4 > Fedora 18 > Dovecot 2.1.15 > sdbox format > > I am moving mail in a series of steps: > > 0) cd ( to mail user home directory ) > mkdir Maildir > > 1) # rsync mail from source system (hoho4) to current (hoho0) > time rsync -arv --times hoho4:/home/bobgus/Maildir/ /home/bobgus/Maildir/ > > This step takes about 37 minutes the first time > > 2) # dsync mirror/convert to sdbox format on current system > time dsync mirror maildir:~/Maildir > > This step takes about 858 minutes (!!) > > Looking at -D messages indicates that dsync is deciding between > duplicates much of the time. > > Looking at the results in a mail browser (Evolution), it seems fine, > although the latest mails are not there. > > 3) # pick up more current mail - use same script as in 1) > time rsync -arv --times hoho4:/home/bobgus/Maildir/ /home/bobgus/Maildir/ > > This step takes about 5 minutes although this varies depending on the > amount of new mail. > > 4) # repeat the 2) dsync step > time dsync mirror maildir:~/Maildir > > This is where things look peculiar. When I look at the directory of > sdbox/mailboxes, I see duplicated directories > > [bobgus@hoho0 sdbox]$ cd mailboxes > [bobgus@hoho0 mailboxes]$ ls > Apple Mail To Do > Apple Mail To Do_2a47983780615e5179600000ba55d82c > Deleted Messages > Deleted Messages_2847983780615e5179600000ba55d82c > Drafts > Drafts_2447983780615e5179600000ba55d82c > Important > Important_2947983780615e5179600000ba55d82c > INBOX > INBOX_1547983780615e5179600000ba55d82c > Sent > Sent_2547983780615e5179600000ba55d82c > Trash > Trash_2747983780615e5179600000ba55d82c > > The 2nd dsync step has not completed yet. I'm wondering whether the > extra directory will be magically moved into the older directory. > > (This is unlikely because the file names are duplicated in the new > directory) > > ------- > > Is this expected behavior? Are there command changes I can make to speed > up the process? Eliminate the duplicate directories? > > > > -- Ken Anderson Pacific Internet - http://www.pacific.net
