It's about 300GB of mboxes (I don't know how many messages) and dsync took about 3 hours from scratch in the destination. But, when I sync more frequently, it's much quicker, and depends on the number of changes. With no changes it runs in about 15 min. Ken A.
On 4/5/2013 1:54 PM, Bob Gustafson wrote: > I tried that a week or so ago, with a 'dsync -R backup', but got the > funny named directories, so I read more and am trying the 'dsync > mirror' which doesn't require the -R. > > How long does the sync step take for you? (Normalize to # of > messages..) > > Bob G > > On Apr 5, 2013, at 13:48, Ken A <k...@pacific.net> wrote: > >> 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 > -- Ken Anderson Pacific Internet - http://www.pacific.net
