How does the newly released Percona XtraDB Cluster compare with MySQL Cluster?
http://www.mysqlperformanceblog.com/2012/01/09/announcement-of-percona-xtradb-cluster-alpha-release/
How does the newly released Percona XtraDB Cluster compare with MySQL Cluster?
http://www.mysqlperformanceblog.com/2012/01/09/announcement-of-percona-xtradb-cluster-alpha-release/
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Simply the Percona XtraDB Cluster is MySQL 5.5 with the Galera replication (synch multimaster) + other patches. That means that you still keep your data in disk + ram cache where MySQL Cluster keeps all data in RAM and saves to disk. In short, if your dataset is bigger than your RAM you need Percona's cluster.