dsync selectively

Teemu Huovila teemu.huovila at dovecot.fi
Thu Jun 18 13:01:37 UTC 2015

On 06/17/2015 06:07 PM, lejeczek wrote:
> On 16/06/15 14:27, lejeczek wrote:
>> On 16/06/15 14:16, lejeczek wrote:
>>> On 16/06/15 13:14, B wrote:
>>>> P,
>>>> On Tue, Jun 16, 2015 at 01:07:52PM +0100, lejeczek wrote:
>>>>> I've barely started reading on dsync and I wonder..
>>>>> would you know if it is possible to sync/replicate only specific
>>>>> domain(users)? or it's always the whole lot?
>>>> See
>>>> http://blog.dovecot.org/2012/02/dovecot-clustering-with-dsync-based.html
>>>> basically set 'mail_replica' to 'remote:server3' in your userdb
>>>> B
>>> thanks B,
>>> userdb as appose to plugin?
>>> it's quite unclear what to put there, to a beginner.
>> also if I put mail_replica (having the rest, pretty much take form wiki in repl.conf) into userdb
>> I get:
>> line 24: Unknown setting: mail_replica
>> this userdb uses ldap driver in case it may matter, I guess it should not.
> gee, I cannot figure it out, and I'd guess it must be sort of typical situation,
> where one would want to avoid replication os local/system users and only sync a virtual domain(s), no?
> Can it be done by means of config files?
What the original answer meant was, that you should put it in your userdb backend, in this case LDAP. So add a field in LDAP,
which for users you want to replicate points to the replication destination and for other users is blank. then add it via a LDAP
attribute template, e.g.

user_attrs = \

Make sure (with auth_debug=yes and mail_debug=yes in your config)the mail_replica is empty for users you do not want to replicate.

Please read http://wiki2.dovecot.org/AuthDatabase/LDAP/Userdb http://wiki2.dovecot.org/Replication?highlight=%28mail_replica%29
and http://wiki2.dovecot.org/Tools/Doveadm/Sync?highlight=%28mail_replica%29 carefully.

Teemu Huovila

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