Replication between two ISPCOnfig servers

[Philon]

Hi Otto

if Dovecot users are setup through SQL you might want to check the iterate
query. So that things like for example doveadm quota get -A work. So look
into your SQL config, there you must setup the sql query. Then doveadm sync
-A should do what you expect.


Philon


2016-02-22 11:44 GMT+01:00 Otto Saayman <otto at igotafrica.com>:

> Hello
>
> I have set up two servers, one master and one slave, using ISPConfig. I
> have been using rsync to synchronise mails between the two machines, but
> this has some unstable results.
>
> I had a look at setting up replication:
> http://wiki.dovecot.org/Replication
>
> When I run the command, doveadm user '*', only two users are returned. So
> when I run this command: doveadm replicator replicate \* I get: 2 users
> updated
>
> I run this command:
>     doveadm sync -u [e-mail address] tcp:[2nd/ slave dovecot server IP
> address]
>
> Here I can input any valid e-mail address in the ISPConfig MySQL database
> and it works.
>
> How do I tell the dovecote server to replicate all the users configured in
> the MySQL database it uses when it handles logins via POP/ IMAP, all of
> which is working fine?
>
> Is there a command I need to run at a set interval via cron to synchronise
> the two machines' mailboxes, which are identical in every way except the
> mails the users' mailboxes contain?
>
> OR
>
> Is there a way that I can instruct the two machines to keep each other's
> user mailbox contents "up to date"?
>
> The main idea is to have a hot backup of my "main" dovecot server and also
> to enable a lower mail priority for the second server so that mails are
> still received when the main server becomes busy, or is taken offline for
> some reason.
>
> Any help, or link to a HOWTO would be appreciated.
>
> --
>
> Best Regards
>
> Otto Saayman
>