Hello,
I'm trying to migrate mail accounts from an old server to a new one. As I need to migrate dozens of accounts which take about 1G each, I need to do stateful sync to make my migration in two times :
1 - I run a : doveadm -D -o mail_fsync=never -o imapc_user=user1@olddomain.fr sync -s "" -R -1 -u user1@newdomain.fr imapc: > /tmp/firstsync.log 2>&1
my accounts are synced, and I get a "state" string (AQAAAHm4+Jk=) as the output of doveadm sync command.
2 - Changes are made on the old server, and I expect next dsync will sync only the changes / new mails. So I run a : doveadm -D -o mail_fsync=never -o imapc_user=user1@olddomain.fr sync -s "AQAAAHm4+Jk=" -R -1 -u user1@newdomain.fr imapc: > /tmp/secondsync.log 2>&1
My problem is that state of messages are not synchronized (mails marked as read on old server are still unread on new server, mails moved on a folder on the old server are still in the INBOX of new server).
The full debug of ran commands is available here : http://fpaste.scsys.co.uk/557551 The result of "doveconf -n" is available here : http://fpaste.scsys.co.uk/557552 I'm using version 2.2.27
Can anyone tell me if I'm doing something wrong ? How can I debug more ?
Regards, Cédric
On 20 Mar 2017, at 13.24, Cédric ML cedric.bassaget.ml@gmail.com wrote:
Hello,
I'm trying to migrate mail accounts from an old server to a new one. As I need to migrate dozens of accounts which take about 1G each, I need to do stateful sync to make my migration in two times :
1 - I run a : doveadm -D -o mail_fsync=never -o imapc_user=user1@olddomain.fr sync -s "" -R -1 -u user1@newdomain.fr imapc: > /tmp/firstsync.log 2>&1
my accounts are synced, and I get a "state" string (AQAAAHm4+Jk=) as the output of doveadm sync command.
Stateful synchronization requires at least imapc_features=modseq. That requires that the remote server supports CONDSTORE IMAP extension. And I'm still not entirely sure if that's enough. In general stateful replication isn't really supported with imapc.
Hello Timo, "old server" is running dovecot 1.0.15, so I guess it it will not support imapc_features=modseq... Maybe it would be useful to add these prerequisites to dovecot wiki.
Regards, Cédric
Le 20/03/2017 à 15:45, Timo Sirainen a écrit :
On 20 Mar 2017, at 13.24, Cédric ML cedric.bassaget.ml@gmail.com wrote:
Hello,
I'm trying to migrate mail accounts from an old server to a new one. As I need to migrate dozens of accounts which take about 1G each, I need to do stateful sync to make my migration in two times :
1 - I run a : doveadm -D -o mail_fsync=never -o imapc_user=user1@olddomain.fr sync -s "" -R -1 -u user1@newdomain.fr imapc: > /tmp/firstsync.log 2>&1
my accounts are synced, and I get a "state" string (AQAAAHm4+Jk=) as the output of doveadm sync command. Stateful synchronization requires at least imapc_features=modseq. That requires that the remote server supports CONDSTORE IMAP extension. And I'm still not entirely sure if that's enough. In general stateful replication isn't really supported with imapc.
participants (2)
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Cédric ML
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Timo Sirainen