On 27 Jun 2016, at 08:28, Heiko Schlittermann <h...@schlittermann.de> wrote:
>
> Hi,
>
> I'm trying to migrate from Cyrus (remote side) to Dovecot 2.2.24 (local).
> On the local side the destinations folders, and indexes are empty.
>
> The command I'm using is
>
> doveadm \
> -o mail_plugins= \
> -o imapc_master_user=<cyrus-user> \
> -o imapc_password=<cyrus-password> \
> -o imapc_host=<cyrus-ip> \
> \
> -o imapc_ssl_verify=no \
> -o imapc_ssl=imaps \
> -o imapc_port=993 \
> backup -f -u "heiko" -R imapc: \
> || {
> rc=$?
> echo "EXIT: $rc" >&2
> exit $rc
> }
>
> On successive runs of the above command I get:
>
> dsync(heiko): Warning: Deleting mailbox 'Serververwaltung.Mailinglisten
> Anforderung': UID=16 GUID= is missing locally
This means that on Dovecot side there are messages after UID=16, but either:
a) UID=16 was expunged from Dovecot side or
b) UID=16 suddenly appeared on Cyrus side even though it wasn't there earlier.
This isn't allowed by IMAP standard.
Dovecot can't insert UIDs, so it'll delete the folder and re-sync everything on
the next run.
> Any idea where to look next? Is 'doveadm backup' the wrong tool for such
> migration? (I'd say with about 2.2.9 I had similar problems, but at
> least it didn't stop at every subfolder.)
If you allow local access already that can do modification, use doveadm sync -1
after that.
