Description

Postgres-XC is a set of open-source software tools developed by Postgres Global Development Group to enable the development of distributed, shared-nothing, PostgreSQL-based database clusters. It is a multi-master, symmetric clustering system for PostgreSQL which allows for the creation of highly available, fault-tolerant, and geographically distributed clusters of PostgreSQL databases. With Postgres-XC, a cluster of PostgreSQL databases can be created which is capable of scaling both in terms of storage and performance. Each node in the cluster is a full PostgreSQL server and the cluster is managed and controlled by an additional, coordinator node. All the nodes in the cluster can act as primary and secondary databases, allowing for load-balancing, high availability, and disaster recovery. Postgres-XC also provides an optimized query optimizer and a set of distributed commands to help manage the cluster.

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