online conversion using replication?

[Daniel Miller]

That works for a one-time migration, or perhaps via a cron-job, but what 
I want is basically a constant one-way backup and it seems replication 
could do it more elegantly & efficiently.

--
Daniel

On 9/1/2018 11:14 PM, Aki Tuomi wrote:
> You don't need to setup replication for that. See 
> https://wiki2.dovecot.org/Migration/MailFormat
>
> ---
> Aki Tuomi
> Dovecot oy
>
> -------- Original message --------
> From: Daniel Miller <dmiller at amfes.com>
> Date: 02/09/2018 04:14 (GMT+02:00)
> To: Dovecot Mailing List <dovecot at dovecot.org>
> Subject: online conversion using replication?
>
> With a single server - and no intent to have a second server online at
> this time - is it possible to use the replication service to keep a
> "live" backup? Or otherwise perform a storage format conversion?
>
> I'm presently using sdbox - and considering going back to mdbox though
> without SIS.  My intent now is ONLY a 1-way backup, to be kept current,
> and no clients will utilize the converted storage (unless/until I change).
>
> I've successfully executed:
>
> doveadm backup -u <username> -n inbox 
> mdbox:/var/mail/<domain>/<user>/mdbox
>
> For a few users - but reading the docs leads me to believe I can
> automate this.  But there's no explicit example for this - so I'm not
> sure what to set.
>
> Initially I'm thinking of:
>
> dsync_remote_cmd = doveadm backup -u %u -n inbox 
> mdbox:/var/mail/%d/%n/mdbox
>
> and if that's right - which other services/listeners do I need to setup?
>
> -- 
> Daniel
>

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