the system I worked out was mysql master to master replication (needed auto increment offsets and intervals set per server).
Also perl Mysql replicaiton as found at https://github.com/alfie/MySQL--Replication



From: Harry Lachanas <freemail.grharry@gmail.com>
To: koha-devel@lists.koha-community.org
Sent: Wednesday, 24 October 2012 6:47 PM
Subject: [Koha-devel] Koha on Mysql Cluster

Hi List,
I am facing a prob with a setup design that has safety and min-down time fail-over etc as a prerequisite.
This has led me to consider a MySql Cluster setup.
I've tried to import the database into it and found out that it wasn't as simple as I thought.
As a result I had to mess around table and column definitions.
However since I haven't tried it in a "production" or "close-to", KOHA installation, I am not certain that the functionality will be intact 100%.

I wonder if this will be interesting to the developers of KOHA.

If so, please let me know in order to mail you the "Cluster" DB structure that passes into mysql.

Kind regards
grharry.





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