Introduction
With Galera you can construct database clusters where each node is located in a different physical or even geographical location. In this blog post we will show some of the benefits from having such a geo-distributed cluster and the specific Galera features that enable practical replication across WAN links.
Benefits From Geo-Distribution
Geo-distribution allows database to break out from the single data center, which opens a whole new approach to redundancy and performance.
Increased Redundancy
Having database nodes in various geographic locations increases redundancy considerably, so that a local power failure or network outage can not possibly affect all nodes in the cluster. Outages that affect multiple availability zones within a single facility are not unheard of, but Galera allows you to go beyond the availability zones and have a truly multi-datacenter database cluster.
…
[Read more]