Production Cluster Configuration Guide

Moving from a single ClickHouse® server to a clustered format provides several benefits:

• Replication guarantees data integrity.
• Provides redundancy.
• Failover by being able to restart half of the nodes without encountering downtime.

Moving from an unsharded ClickHouse environment to a sharded cluster requires redesign of schema and queries. Starting with a sharded cluster from the beginning makes it easier in the future to scale the cluster up.

Setting up a ClickHouse cluster for a production environment requires the following stages:

• Hardware Requirements
• Network Configuration
• Create Host Names
• Monitoring Considerations
• Configuration Steps
• Setting Up Backups
• Staging Plans
• Upgrading The Cluster