[Dovecot] General questions about TCP replication with dsync

[Patrick De Zordo]

> -----Ursprüngliche Nachricht-----
> Von: dovecot [mailto:dovecot-bounces at dovecot.org] Im Auftrag von Robert
> Schetterer
> Gesendet: Mittwoch, 4. Juni 2014 19:42
> An: dovecot at dovecot.org
> Betreff: Re: [Dovecot] General questions about TCP replication with dsync
> 
> Am 04.06.2014 19:35, schrieb Patrick De Zordo:
> > Hi Guys,
> >
> > I would like to question why I see this errors in my logs.
> >
> >
> >
> > Let explain me!
> >
> >
> >
> > Dovecot version: 2.2.9 (on Ubuntu 14.04 LTS)
> >
> >
> >
> > I’ve configured our dovecot servers (2 servers) to do the TCP replication
> > with dsync.
> >
> > This is working flawless.
> >
> >
> >
> > 1. Question:
> >
> > In logs I can see this errors on every sync (on the “slave” server / server
> > without changes which should be updated):
> >
> > ---8<-----------------------------------------------------------------------
> > ----------------------------------------------------------------------------
> > ----
> >
> > dsync-server(email at example.com): Error:
> > net_connect_unix(/var/run/dovecot/replicator-doveadm) failed:
> Permission
> > denied
> >
> > ---8<-----------------------------------------------------------------------
> > ----------------------------------------------------------------------------
> > ----
> >
> >
> >
> > Googling a bit gave me the information “This should be normal”..?
> >
> > Well ok, errors in logs are not nice to see, but can someone confirm this is
> > really ok? Timo?
> >
> >
> >
> > 2. Question (much more important):
> >
> > We are using sieve scripts for our users, they are replicated to the
> > replica-host but this errors appears in logs on every synchronized message:
> >
> > ---8<-----------------------------------------------------------------------
> > ----------------------------------------------------------------------------
> > ----
> >
> > dsync-server(email at example.com): Error: Failed to access mailbox
> > dovecot/sieve: Internal error occurred. Refer to server log for more
> > information.
> >
> > dsync-server(email at example.com): Error:
> > stat(/var/vmail/example.com/email/.dovecot.sieve/tmp) failed: Not a
> > directory
> >
> > ---8<-----------------------------------------------------------------------
> > ----------------------------------------------------------------------------
> > ----
> >
> >
> >
> > So what’s going on there?
> >
> > This is strange and should not be, right?
> >
> > Any hints?
> >
> >
> >
> > Thank you very much!
> >
> >
> >
> > ---------------------------------------------------------------------
> >
> > Mit freundlichen Grüßen / Distinti saluti / Kind regards
> >
> > De Zordo Patrick
> >
> > patrick at spamreducer.eu
> >
> >
> >
> 
> 2.2.9 is not recent, before debug you might upgrade
> 

Well, not so easy.. we are working on a productive server; this version ships as default for this distro..
I don't even know how to compile my own dovecot version..

> see
> http://hg.dovecot.org/dovecot-2.2/log?rev=replicator
> 
> also you missed to attach your dove conf
> 

Relevant config parts:
--- /etc/dovecot/conf.d/10-mail.conf ---
---8<-----------------------------------------------------------------------
mail_plugins = $mail_plugins notify replication
---8<-----------------------------------------------------------------------

--- /etc/dovecot/conf.d/99-replication.conf ---
---8<-----------------------------------------------------------------------
service aggregator {
  fifo_listener replication-notify-fifo {
    mode = 0666
  }
  unix_listener replication-notify {
    mode = 0666
  }
}
service replicator {
  unix_listener replicator-doveadm {
    mode = 0600
  }
}
service doveadm {
  inet_listener {
    port = 999
  }
}
doveadm_password = secret
replication_max_conns = 1
plugin {
  mail_replica = tcp:server2.example.com:999
}
---8<-----------------------------------------------------------------------


Thank you for any hint!





> Best Regards
> MfG Robert Schetterer
> 
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