Amazon Redshift will no longer support the use of Python UDFs after June 30, 2026. We will start enforcing it in phases. For more information on the details of Python end of life and migration options, see the [ blog post ](https://aws.amazon.com/blogs/big-data/amazon-redshift-python-user-defined-functions-will-reach-end-of-support-after-june-30-2026/) that was published on June 30, 2025. 

# Rebooting a cluster
<a name="reboot-cluster"></a>

Rebooting a cluster is a cluster operation that restarts the cluster with the same configuration as before the reboot. You can reboot a cluster to apply pending maintenance updates, reset configuration changes, recover from certain issues, or troubleshoot cluster problems. Rebooting a cluster can help ensure optimal performance, security, and stability of the Amazon Redshift environment. The following procedure provides detailed steps for rebooting an Amazon Redshift cluster.

When you reboot a cluster, the cluster status is set to `rebooting` and a cluster event is created when the reboot is completed. Any pending cluster modifications are applied at this reboot.

**To reboot a cluster**

1. Sign in to the AWS Management Console and open the Amazon Redshift console at [https://console.aws.amazon.com/redshiftv2/](https://console.aws.amazon.com/redshiftv2/).

1. On the navigation menu, choose **Clusters**. 

1. Choose the cluster to reboot. 

1. For **Actions**, choose **Reboot cluster**. The **Reboot cluster** page appears.

1. Choose **Reboot cluster**.