Great Circle Associates Majordomo-Users
(June 2003)
 

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Subject: Re: Keeping lists in two machines in sync.
From: "Kozloski, Matthew" <matthew . kozloski @ strus . com>
Date: Fri, 6 Jun 2003 14:07:01 -0400
To: majordomo-users @ greatcircle . com

Title: RE: Keeping lists in two machines in sync.

Have you looked into using Unison via SSH?  http://www.cis.upenn.edu/~bcpierce/unison/

-----Original Message-----
From: Burt Juda [mailto:burt@juda.com]
Sent: Friday, June 06, 2003 12:26 PM
To: majordomo-users@greatcircle.com
Subject: Re: Keeping lists in two machines in sync.


Then there is the possibility that a change could be made on each
server.  One would be lost during the rsync.  You can only do the rsync
in one direction at a time.

What I did in this situation is to run a script on the backup to rewrite
the majordomo list aliases to specifically point to the primary
machine.  ie:

     majordomo:  majordomo@primary-mx.dom
     listname:   listname@primary-mx.dom

This would queue up any mail for majordomo or lists 'til the primary
came back online, but there was NO possiblilty of anything getting out
of sync.

    - Burt



Deb wrote:

>Is there some reason you shouldn't/couldn't use rsync on *both* sides,
>to synchronize both servers?  Use options to only update files that are
>newer...
>
>d
>
>Sujit Choudhury <S.Choudhury@westminster.ac.uk> had this to say,
>

>
>>Dear All,
>>We have two MTA - one the main one and the other the backup one.  MX
>>record for the main one is lower than the backup one.  However we are
>>running majordomo on both the machines.  This causes one small
>>problem.  Sometimes the secondary MTA's majordomo files are updated if
>>the request reaches the secondary MTA. I use rsync to maintain any
>>changes in the primary MTA's majordomo files are reflected in the
>>secondary MTA, however have no idea how to keep both of them in sync.
>>
>>Any help would be appreciated.
>>
>>Many thanks
>>
>>Sujit Choudhury
>>   
>>
>

>

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From: Burt Juda <burt@juda.com>
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From: "Sujit Choudhury" <S.Choudhury@westminster.ac.uk>

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