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Galera is slowly but surely establishing itself as a credible replacement for traditional MySQL master-slave architectures.
The benefits are clear - a true multi-master InnoDB setup with built-in fail-over, potentially across data centers.
But how do you migrate? Does the schema or application change? What are the limitations? Can migration be done online, without service interruption? What are the potential risks, and how to address those?
Application use cases for Galera
Events and Triggers
Migrating the schema
Loading initial data into the cluster
Performing Online Migration to Galera
Operational management checklist
Belts and suspenders: Plan B