dovecot - Nov 2010 - Is Dovecot Director stable for production??

Today I will try Dovecot Director for a setup using a Cluster Backend with
GFS2 on rhel5, my question is if is Director stable for use in production
for large sites, I know is mainly designed for NFS but I believe it will do
the job also for a cluster filesystem like GFS2 and should solve the mail
persistence problem with a node and locking issues.
I plan to add a layer behind a load balancer to do the stuff, I will
appreciate if you guys can point me to best practices in configuring the
director, or how the thing works since is new for me, I have seen the
example conf but I don't have clarity in some of the concepts and the wiki
is empty.
I use 2.0.6, thank's for a great job with dovecot.
best regards, Aliet

Am 13.11.2010 19:44, schrieb Aliet Santiesteban
Sifontes:
> Today I will try Dovecot Director for a setup using a Cluster Backend with
> GFS2 on rhel5, my question is if is Director stable for use in production
> for large sites, I know is mainly designed for NFS but I believe it will do
> the job also for a cluster filesystem like GFS2 and should solve the mail
> persistence problem with a node and locking issues.
> I plan to add a layer behind a load balancer to do the stuff, I will
> appreciate if you guys can point me to best practices in configuring the
> director, or how the thing works since is new for me, I have seen the
> example conf but I don't have clarity in some of the concepts and the
wiki
> is empty.
> I use 2.0.6, thank's for a great job with dovecot.
> best regards, Aliet
> 
i have 2 dovecot/postfix behind 2 loadbalancers keepalived
maildir store on with ocfs2 on drbd , configs etc are on
mysql-master-master replication ,no problems so far

you should not run into trouble with GFS2
using right config dovecot entries

never used the director if you mean this
i.e
http://www.sfr-fresh.com/unix/misc/dovecot-2.0.7.tar.gz:a/dovecot-2.0.7/doc/example-config/conf.d/10-director.conf


-- 
Best Regards

MfG Robert Schetterer

Germany/Munich/Bavaria

Ok, I answer to my self what I did:

In /etc/dovecot/dovecot.conf

protocols = imap pop3 lmtp sieve

In /etc/dovecot/conf.d/10-auth.con

disable_plaintext_auth = no

Removed comment to
!include auth-static.conf.ext

In /etc/dovecot/conf.d/auth-static.conf.ext

passdb {
  driver = static
  args = proxy=y nopassword=y
}

In /etc/dovecot/conf.d/10-master.conf to fix perms

service auth {
...
    mode = 0600
    user = dovecot

...

In /etc/dovecot/conf.d/20-lmtp.conf

lmtp_proxy = yes

In /etc/dovecot/conf.d/10-director.conf

director_servers = 172.29.9.25 172.29.9.26

director_mail_servers = 172.29.9.10 172.29.9.11

director_user_expire = 15 min

service director {
  unix_listener login/director {
    mode = 0666
  }
  fifo_listener login/proxy-notify {
    mode = 0666
  }
  unix_listener director-userdb {
    mode = 0600
  }
  inet_listener {
    port = 4000
  }
}

service imap-login {
  executable = imap-login director
}
service pop3-login {
  executable = pop3-login director
}

# Enable director for LMTP proxying:
protocol lmtp {
  auth_socket_path = director-userdb
  passdb {
    driver = static
    args = proxy=y nopassword=y port=24
  }
}


Both backend configured and working using ldap, with this director config is
working but I still have a problem...
if I run command

doveadm director map I get

user                                              mail server ip expire time
<unknown>                                         172.29.9.11   
2010-11-13
17:43:31

lmtp, imap and pop director working but in the list the user appears as
unknown, how tofix this??
any ideas??

2010/11/13 Aliet Santiesteban Sifontes <alietsantiesteban at gmail.com>
> Today I will try Dovecot Director for a setup using a Cluster Backend with
> GFS2 on rhel5, my question is if is Director stable for use in production
> for large sites, I know is mainly designed for NFS but I believe it will do
> the job also for a cluster filesystem like GFS2 and should solve the mail
> persistence problem with a node and locking issues.
> I plan to add a layer behind a load balancer to do the stuff, I will
> appreciate if you guys can point me to best practices in configuring the
> director, or how the thing works since is new for me, I have seen the
> example conf but I don't have clarity in some of the concepts and the
wiki
> is empty.
> I use 2.0.6, thank's for a great job with dovecot.
> best regards, Aliet
>