performing-cluster-maintenance

Node draining for CockroachDB cluster maintenance safely redistributes traffic before OS patching or hardware changes. The skill provides tier-aware drain procedures with pre-maintenance validation checks to ensure cluster health and minimize downtime across Self-Hosted deployments.

A CockroachDB maintenance window is a scheduled period for applying patches and configuration updates. You need to configure one when planning maintenance events on Advanced or BYOC deployments to manage patch scheduling, deferral policies, and CRL-managed monitoring.

CockroachDB maintenance planning works across all deployment tiers. Self-Hosted covers node drain procedures, Advanced and BYOC support maintenance window configuration, while Standard and Basic maintenance is fully managed by Cockroach Labs with no customer action required.

Verify CockroachDB cluster health after maintenance by running post-maintenance verification checks. The skill provides validation procedures to ensure cluster availability, confirm successful recovery, and validate that all nodes are operational across the applicable deployment tiers.

Prechecks before draining a CockroachDB node involve pre-maintenance validation checks that assess cluster health and availability. The skill satisfies high-level prerequisites and workflow requirements, including tier-specific steps to ensure safe node draining and prevent data loss.

The best way to schedule CockroachDB patching to minimize downtime is by configuring maintenance windows with defined patch scheduling and deferral policies. The skill coordinates maintenance across deployment tiers, applying safety guidelines and monitoring during CRL-managed maintenance events.