Posted by Vadim |

First time I heard about Galera on Percona Performance Conference 2009, Seppo Jaakola was presenting “Galera: Multi-Master Synchronous MySQL Replication Clusters”. It was impressed as I personally always wanted it for InnoDB, but we had it in plans at the bottom of the list, as this is very hard to implement properly.
The idea by itself is not new, I remember synchronous replication was announced for SolidDB on MySQL UC 2007, but later the product was killed by IBM.

So long time after PPC 2009 there was available version mysql-galera-0.6, which had serious flow, to setup a new node you had to take down whole cluster. And all this time Codership ( company that develops Galera) was working on 0.7 release that introduces node propagation keeping cluster online. You can play with 0.7pre release by yourself MySQL/Galera Release 0.7pre.
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