Cluster operations - Amazon Redshift
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Amazon Redshift will no longer support the creation of new Python UDFs starting November 1, 2025. If you would like to use Python UDFs, create the UDFs prior to that date. Existing Python UDFs will continue to function as normal. For more information, see the blog post .

Cluster operations

After you create a cluster, you can perform cluster operations to optimize performance, control costs, and ensure high availability. Cluster operations allow you to resize, pause, resume, or even recreate clusters as your data warehousing needs evolve.

Common use cases include scaling compute capacity for peak workloads, pausing clusters during inactive periods to reduce costs, and recreating clusters with different configurations or in different Availability Zones for disaster recovery. The following sections cover the details of performing various cluster operations to effectively manage your Amazon Redshift environment.