PATCH for lmtp was [frontend lmtp connections to mupdate master]

[Nic Bernstein]

Bron,
We're starting to run into this same issue -- lmtp proxies fail to 
deliver mail when mupdate master craps -- and so started to investigate 
this thread.  However, it doesn't look like Michael Menge's patch made 
it in.  Your thoughts?
     -nic

On 10/07/2014 08:17 AM, Bron Gondwana wrote:
> I'm convinced :)  I'll probably add it with Ken while we're at CMU in a couple of weeks when we can test it together.  This is precisely the kind of thing we love to see!  Thanks.
>
> Bron.
>
> On Tue, Oct 7, 2014, at 10:23 PM, Michael Menge wrote:
>> Hi,
>>
>> as we have had an other crash of mupdate master last week, we used the
>> patch on our production system.
>>
>> After the patch was added the load on mupdate master was dropping form
>> about 10 to about 1.
>>
>> After one week of using it we have not found any problems.
>> As I have not received any other feedback, I added it to the
>> bugtracker.
>>
>> https://bugzilla.cyrusimap.org/show_bug.cgi?id=3866
>>
>> Pleas consider adding it to 2.5 and 2.4.next
>>
>> Regards
>>
>>      Michael
>>
>>
>> Quoting Michael Menge <michael.menge at zdv.uni-tuebingen.de>:
>>
>>> Hi,
>>>
>>>
>>> Quoting Michael Menge <michael.menge at zdv.uni-tuebingen.de>:
>>>
>>>> Quoting Michael Menge <michael.menge at zdv.uni-tuebingen.de>:
>>>>
>>>>> By thew way, the reason I was so surprised in the first place was, that
>>>>> I have been fooled by the documentation:
>>>>> Quoting https://cyrusimap.org/docs/cyrus-imapd/2.4.17/install-murder.php
>>>>>
>>>>>> Configuring the frontends
>>>>>> [...]
>>>>>> However, because the frontends only talk to the mupdate master
>>>>>> via   a  slave running on the local machine, you will also need
>>>>>> to set  up  a  slave on the same machine, in the SERVICES section
>>>>>> of   cyrus.conf,  like so
>>>> And an other misleading DOC !
>>>> Quoting
>>>> http://www.cyrusimap.org/mediawiki/index.php/Cyrus_Murder_Mail_Delivery
>>>>> UMich patch
>>>>>
>>>>> Patch Patches are against 2.2 but are being moved to 2.3
>>>>> Lmtpproxyd   will now use the local mailboxes.db
>>> Quoting Wesley Craig <wescraig at gmail.com>:
>>>
>>>> On 29 Sep 2014, at 10:08, Michael Menge
>>>> <michael.menge at zdv.uni-tuebingen.de> wrote:
>>>>> thanks for your mail. By any chance do you still have the patch?
>>>> In fact, I don't.  Dusting off my notes, I recall now that instead
>>>> of patching this (bogus) code, we instead decided to configure the
>>>> frontends as "unified", while leaving the backends "standard".  The
>>>>   only downside of this approach was that a naive admin could
>>>> potentially create a user's mailbox on a frontend.
>>>>
>>>> Sorry I said that we ported that code forward: in fact we simply
>>>> got  the effect of consulting mailboxes.db without porting forward.
>>>>
>>>> :wes
>>> I have patched my lmtpd to use the local mailbox.db in all cases,
>>> unified Murder, and standalone cyrus already did this.
>>> I tested it with a few testmails on my test system,
>>> but as i don't have a unified setup or a standalone test system
>>> at the moment i didn't test these setups.
>>>
>>> I would appreciate a review.
>>>
>>>
>>> Regards,
>>>
>>>     Michael Menge
>>>
>>>
>>> --------------------------------------------------------------------------------
>>> M.Menge                                Tel.: (49) 7071/29-70316
>>> Universität Tübingen                   Fax.: (49) 7071/29-5912
>>> Zentrum für Datenverarbeitung          mail:
>>> michael.menge at zdv.uni-tuebingen.de
>>> Wächterstraße 76
>>> 72074 Tübingen
>>
>>
>>
>> --------------------------------------------------------------------------------
>> M.Menge                                Tel.: (49) 7071/29-70316
>> Universität Tübingen                   Fax.: (49) 7071/29-5912
>> Zentrum für Datenverarbeitung          mail:
>> michael.menge at zdv.uni-tuebingen.de
>> Wächterstraße 76
>> 72074 Tübingen
>> ----
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-- 
Nic Bernstein                             nic at onlight.com
Onlight, Inc.                             www.onlight.com
6525 W Bluemound Road, Suite 24           v. 414.272.4477
Milwaukee, Wisconsin  53213-4073

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