After migrating multiple times, both with ImapSync and manually, and
between Local accounts and Virtual accounts, I agree that ImapSync is the
easiest way to migrate piecemeal or in it's entirety unless there is some
sort of time constraint to get it done quickly.
Thanks,
B
On Fri, 18 Apr 2008 14:44:02 +0200, "Alain Spineux" <aspineux@xxxxxxxxx>
wrote:
> On Mon, Apr 14, 2008 at 5:42 PM, Shelley Waltz <shwaltz@xxxxxxxxxxxxxxxx>
> wrote:
>> I wish to migrate imap accounts from my current cyrus-imapd-2.2.3-4 on
> RHEl3
>> to cyrus-imapd-2.3.7 on RHEL5. I have the new server installed and the
> db
>> formats will ramin the same on both servers except for deliver.db and
>> tls_sessions.db which will change from berkeley to skiplist. My
>> understanding is that I can simply start with fresh db on the new
> server
>> and do not need to migrate these(copy and convert).
>>
>
> Right
>
>> I will be migrating about 250 accounts of 1GB or less. I need to do
> these in
>> 5-10 at a time to minimize complications and downtime. Last time I did
>> this, it worked out well, migrating from 1.6 to 2.2 even though I did
> need
>> to convert dbs. I will set up alias forwarding for the migrated
> accounts
>> and once all migrated, change TTL on DNS and modify records to move
>> completely to new server.
>>
>> I know I need to copy from olde server to new server,
>> (1) /var/lib/imap/user/"a-z"/"username".sub,seen
>> (2) /var/lib/quota/"a-z"/user."username"
>> (3) /var/lib/imap/sieve/"a-z"/"username"/
>> and
>> (4)/var/spool/imap/"a-z"/user/"username"/
>>
>> Additionally, and this was the sticky part the last time, is the
>> mailboxes.db which contains the INBOX/folder structure. Last time, I
>> migrated my LDAP database(for authentication) and the entire
>> mailboxes.db(dumped to flatfile and then recreated on the new server)
>> before beginning to migrate the accounts in batches. The issue arose,
>> however, of this being out of sync with some mailboxes in time as users
>> changed their folders. Soooo, my question is, is there a way to update
> or
>> add new mailboxes individually using the flatfile information I can
>> extract from the old server? Can one easily do this without stopping
> the
>> server?
>
> Do you know imapsync ?
> It can synchronize two imap mailbox, including SEENand ACL (but not
> quota or sieve script)
> You can sync all mailboxes at once using the cyrus manager account:
> 'cyrus'
> Here is a script I used for testing, I use ssh port fowarding to bypass
> IMAPS
> not very well supported by current imapsync
>
> # /bin/bash
> S_HOST=localhost
> T_HOST=fc8asx
>
> S_USER=cyrus
> T_USER=cyrus
>
> S_PASSWD=******
> T_PASSWD=******
>
> DOMAIN=mydomain.loc
>
> ssh -f -L 8143:127.0.0.1:143 $T_HOST sleep 60
> /kolab/bin/perl -I/kolab/lib/emailgency/perl /usr/bin/imapsync \
> --host1 $S_HOST --user1 $S_USER --authuser1 $S_USER
> --password1 $S_PASSWD \
> --host2 127.0.0.1 --port2 8143 --user2 $T_USER
> --authuser2 $T_USER --password2 $T_PASSWD \
> --include "^user/.*@${DOMAIN}" \
> --syncacls \
>
> /kolab/lib/emailgency/perl contains perl-Mail-IMAPClient-2.2.9
> because imapsync like it
>
> Hope this help regards
>
>>
>> Any suggestions are greatly appreciated!
>> S.Waltz
>> ----
>> Cyrus Home Page: http://cyrusimap.web.cmu.edu/
>> Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki
>> List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
>>
>
>
>
> --
> Alain Spineux
> aspineux gmail com
> May the sources be with you
> ----
> Cyrus Home Page: http://cyrusimap.web.cmu.edu/
> Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki
> List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
----
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