Doveadm backup...

[Stephane Magnier]

Well no ..I thought that dsync was for synchro " realtime for 2 
different places ?

Having no 2 machines in parallel ( Just a single machine ) , I thought 
that a backup at regular interval  would be enough ?

So, a simple backup should be done by dsync finally ?

Do you recommend finally NOT to do a backup ( Doveadm backup ) but a 
replication process ? ( https://wiki.dovecot.org/Replication  ) ?

On 2/28/22 06:24, Ben Burk wrote:
>
> Did you try running dsync?
>
> On 2/27/22 23:15, Stephane Magnier wrote:
>>
>> HI,
>>
>> Any idea ? Any clue ?
>>
>> On 2/25/22 21:50, Stephane Magnier wrote:
>>>
>>> Hi
>>>
>>> I've recently tried to use the Dovecadm backup to backup the 
>>> emails..  with the following syntax
>>>
>>> doveadm -Dv backup -u userx maildir:/mnt/nfs-backup/userx
>>>
>>> Sounds to be OK with few emails... Some of them got a lot of emails 
>>> and one f them got an error and stop !
>>>
>>>     dsync(userx): Debug: brain S: Import Trash: Import change
>>>     type=expunge GUID=1725fa475d774ee19cb98dfb6737b4f1 UID=24891
>>>     hdr_hash= result=GUIDs match
>>>     dsync(userx): Debug: brain S: Import Trash: Import change
>>>     type=expunge GUID=916ed110b4b1522868be6194f1ae36ff UID=24892
>>>     hdr_hash= result=GUIDs match
>>>     dsync(userx): Debug: brain S: Import Trash: Import change
>>>     type=expunge GUID=eb8d75c530a7b02fc26b494d9006c91b UID=24893
>>>     hdr_hash= result=GUIDs match
>>>     dsync(userx): Debug: brain S: Import Trash: Import change
>>>     type=expunge GUID=aee9155875c34861fd6500f1f2f51a26 UID=24894
>>>     hdr_hash= result=GUIDs match
>>>     dsync(userx): Debug: brain S: Import Trash: Last common
>>>     UID=24894. Delayed expunges=
>>>     dsync(userx): Debug: brain S: Import Trash: Saved UIDs:
>>>     dsync(userx): Debug: brain S: Import Trash: Finish update:
>>>     min_next_uid=24895 min_first_recent_uid=24895
>>>     min_highest_modseq=35344 min_highest_pvt_modseq=0
>>>     dsync(userx): Debug:
>>>     /mnt/nfs-backup/userx/.Trash/dovecot.index.cache: Compressed,
>>>     file_seq changed 1645803588 -> 1645803589, size=32, max_uid=24894
>>>     dsync(userx): Warning: Mailbox changes caused a desync. You may
>>>     want to run dsync again: Remote lost mailbox GUID
>>>     7e05c335174bf1608f0a02004eac7fb4 (maybe it was just deleted?)
>>>     dsync(userx): Debug: auth-master: conn
>>>     unix:/run/dovecot/auth-userdb: Disconnected: Connection closed
>>>     (fd=10)
>>>
>>>
>>> I empty the trash... exactly the same problem...
>>>
>>> Any idea why this ??
>>>
>>> Thanks and regards,
>>>
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