Table of Contents
The Shardman software comprises these main components: PostgreSQL core with additional features, shardman extension, management services and utilities. This section considers Shardman cluster as a group of PostgreSQL instances or shards. Each shard may also have one or more replicas and to emphasize this the term replication group is used. The support for highly available configurations is currently done on the level of tools and services and will be covered in the Management section.