dsync dovecot / Failed connection refused

[Mike Fröhner]

Sorry, you are right, I was wrong. I missed you explicit configure the 
port at $mail_replica.

On 01/24/2017 10:45 AM, Thierry wrote:
> Hi Mike,
>
> Is  the value of  the 'doveadm_port' if I am choosing: mail_replica =
> tcp:server1.domain.ltd   no ?
> I might be wrong too ;)
>
> Thx
>
> Le mardi 24 janvier 2017 à 11:41:28, vous écriviez :
>
>> Hello,
>
>> I might be wrong, but the port which will be used for the replicator
>> port is the value of 'doveadm_port' which in your case is 4711.
>
>> Mike;
>
>> On 01/23/2017 05:58 PM, Thierry wrote:
>>> Dear all,
>>>
>>> I am using VMWare and I  have cloned my emails server.
>>> Now I do have two identicals servers, both running the same version of dovecot (2.2.13) and imap.
>>> Let's call them: server1.domain.ltd  and server2.domain.ltd.
>>> I would  like to sync both server using dsync.
>>>
>>> Dovecot is working well except concerning  the sync.
>>>
>>> dsync config server1.domain.ltd
>>>
>>> # Enable the replication plugin globally
>>> mail_plugins = $mail_plugins notify replication
>>>
>>> # The mail processes need to have access to the replication-notify fifo and socket.
>>> service aggregator {
>>>   fifo_listener replication-notify-fifo {
>>>     user = vmail
>>>     mode = 0666
>>>   }
>>>   unix_listener replication-notify {
>>>     user = vmail
>>>     mode = 0666
>>>   }
>>> }
>>>
>>> # Enable doveadm replicator commands
>>> service replicator {
>>>   unix_listener replicator-doveadm {
>>>     mode = 0666
>>>   }
>>> }
>>>
>>> # Create a listener for doveadm-server
>>> service doveadm {
>>>   user = vmail
>>>   inet_listener {
>>>     port = 12345
>>>   }
>>> }
>>>
>>> # configure how many dsyncs can be run in parallel (10 by default)
>>> replication_max_conns = 10
>>>
>>> # tell doveadm client to use this port by default
>>> doveadm_port = 4711
>>>
>>> #Both the client and the server also need to have a shared secret
>>> doveadm_password = {SHA512-CRYPT}$6$rou....................
>>> # use tcp:hostname as the dsync target
>>> plugin {
>>>   #mail_replica = tcp:server2.domain.ltd # use doveadm_port
>>>   mail_replica = tcp:server2.domain.ltd:12345 # use port 12345 explicitly
>>> }
>>>
>>> service config {
>>>   unix_listener config {
>>>     user = vmail
>>>   }
>>> }
>>>
>>> ***************************************************************************************
>>>
>>> dsync config server2.domain.ltd
>>>
>>> # Enable the replication plugin globally
>>> mail_plugins = $mail_plugins notify replication
>>>
>>> # The mail processes need to have access to the replication-notify fifo and socket.
>>> service aggregator {
>>>   fifo_listener replication-notify-fifo {
>>>     user = vmail
>>>     mode = 0666
>>>   }
>>>   unix_listener replication-notify {
>>>     user = vmail
>>>     mode = 0666
>>>   }
>>> }
>>>
>>> # Enable doveadm replicator commands
>>> service replicator {
>>>   unix_listener replicator-doveadm {
>>>     mode = 0666
>>>   }
>>> }
>>>
>>> # Create a listener for doveadm-server
>>> service doveadm {
>>>   user = vmail
>>>   inet_listener {
>>>     port = 12345
>>>   }
>>> }
>>>
>>> # configure how many dsyncs can be run in parallel (10 by default)
>>> replication_max_conns = 10
>>>
>>> # tell doveadm client to use this port by default
>>> doveadm_port = 4711
>>>
>>> #Both the client and the server also need to have a shared secret
>>> doveadm_password = {SHA512-CRYPT}$6$ro.............
>>> # use tcp:hostname as the dsync target
>>> plugin {
>>>   #mail_replica = tcp:server1.domain.ltd # use doveadm_port
>>>   mail_replica = tcp:server1.domain.ltd:12345 # use port 12345 explicitly
>>> }
>>>
>>> service config {
>>>   unix_listener config {
>>>     user = vmail
>>>   }
>>> }
>>>
>>> To test both port   I have open on  my both servers port 12345 and 4711 :
>>>
>>> Iptables server1: ACCEPT     tcp  --  anywhere             anywhere             tcp dpt:4711
>>>                   ACCEPT     tcp  --  anywhere             anywhere             tcp dpt:12345
>>>
>>> Iptables server2: ACCEPT     tcp  --  anywhere             anywhere             tcp dpt:4711
>>>                   ACCEPT     tcp  --  anywhere             anywhere             tcp dpt:12345
>>>
>>>
>>> doveadm replicator  status '*'
>>> username                                                                            priority fast sync full sync failed
>>> user1 at domain.ltd                                                                none     00:01:21  11:25:40  y
>>> user3 at domain.ltd                                                                none     07:31:16  11:25:41  -
>>> user2 at domain.ltd                                                                none     00:01:21  11:25:40  y
>>> user4 at domain.ltd                                                                none     11:25:41  11:25:41  -
>>> user5 at domain.ltd                                                                none     02:17:03  11:25:41  -
>>> user6 at domain.ltd                                                                none     11:25:40  11:25:40  -
>>> user4 at domain.ltd                                                                none     00:00:51  11:25:40  y
>>>
>>> When  doing, from server1:   "doveadm sync -u user1 at domain.ltd remote:server2.domain.ltd"
>>>
>>> doveadm(user1 at domain.ltd): Error: userdb lookup: connect(/var/run/dovecot/auth-userdb) failed: Connection refused
>>> doveadm(user1 at domain.ltd): Fatal: /var/run/dovecot/auth-userdb: passdb lookup failed (to see if user is proxied, because doveadm_port is set)
>>> dsync-local(user1 at domain.ltd): Error: read(server2.domain.ltd) failed: EOF (version not received)
>>>
>>> Thx for your help.
>>>
>>>
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