Re: Migrating to N-Way Master

[Quanah Gibson-Mount <quanah@zimbra.com>]

--On Thursday, October 24, 2013 4:25 PM +0000 Peter Sprokkelenburg 
<peters@dsl4u.ca> wrote:

> Currently have a provider / consumer setup in one datacenter. Looking to
> expand to other datacentre and would like better redundancy.
>
>
>
> Running version 2.4.28.

Do not move to multi-master until you upgrade to a current OpenLDAP 
release.  I also strongly advise using delta-syncrepl based MMR.

> What's the best way to change from provider / consumer to n-way master?
> Down time is an option.
>
>
>
> Can the current replication be stopped, reconfigured and then started
> again?

You can do it with zero downtime.

<https://github.com/Zimbra-Community/zimbra-sources/blob/master/main/ZimbraServer/src/libexec/zmldappromote-replica-mmr> 
is a script I wrote to promote Zimbra replicas to be part of a MMR node. 
You would of course have to adapt it to your environment.

--Quanah

--

Quanah Gibson-Mount
Architect - Server
Zimbra, Inc.
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