[Dovecot] Is Dovecot Director stable for production??

[Robert Schetterer]

Am 14.11.2010 00:20, schrieb Henrique Fernandes:
> Robert, does't you have problens with performance  ? What mail storage do
> you use, maildir mbox or other one? do you use any particular config to
> seeting up your OCFS2 cluster?

no Problems so far, but very new not a lot of maildirs yet
at ocfs2 creation you can set parameter mail, that what i ve done
nothing more special
> 
> I am using in prodution  ldiretord and heartbeat with balancing 2 servers
> with dovecot 2.07 and have another server in the cluster for maillist.
> 
> But i am having lots of problens with IO wait.  I am in really troubel
> trying to figure out how to manage that. I am not sure if is ocfs2 or my
> swicth or the storage it self. We still trying to figure out this. Are you
> with any problem with IO in your cluster ?? thanks
> 
no problems so far, i would speculate in bugs, switching, network at io
problems unless you havent a very heavy traffic setup

> 
> Aliet, have you thought about is is better to use ipvs or dovecot diretord
> to do de job ?  I mean does anyone know ? if it is let me know so i can
> configure also here.
> 
> Thanks
> 
> And i am sorry not help!
> 
> 
> []'sf.rique
> 
> 
> On Sat, Nov 13, 2010 at 8:50 PM, Aliet Santiesteban Sifontes <
> alietsantiesteban at gmail.com> wrote:
> 
>> 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
>>>
>>
> 


-- 
Best Regards
MfG Robert Schetterer