Amazon ElastiCache for Redis
ElastiCache for Redis User Guide (API Version 2015-02-02)

Stopping the Self-Service Updates

If you have an unexpected surge to your Redis clusters that are undergoing updates, or if updates are taking too long and interrupting your business flow peak time, you can stop them.

The Stopping operation immediately interrupts all updates to those clusters and any nodes that are yet to be updated. It continues to completion any nodes that have an in progress status. However, it ceases updates to other nodes in the same cluster that have an update available status and reverts them to a Stopping status.

When the Stopping workflow is complete, the nodes that have a Stopping status change to a Stopped status. Depending on the workflow of the update, some clusters won't have any nodes updated. Other clusters might include some nodes that are updated and others that still have an update available status.

You can return later to finish the update process as your business flows permit. In this case, choose the applicable clusters that you want to complete updates on, and then choose Apply Now. For more information, see Applying the Service Updates Using the Console for Redis.

Stopping the Service Updates Using the Console

You can interrupt a service update using the Redis console. The following demonstrates how to do this:

  • After a service update has progressed on a selected Redis cluster, the ElastiCache console displays the View/Stop Update tab at the top of the Redis dashboard.

  • To interrupt the update, choose Stop Update.

  • When you stop the update, choose the Redis cluster and examine the status. It reverts to a Stopping status, as shown following, and eventually a Stopped status.

Stopping the Service Updates Using the AWS CLI

You can interrupt a service update using the AWS CLI. The following code example shows how to do this:

aws elasticache batch-stop-update-action --service-update-name sample-service-update --replication-group-ids my-replication-group-1 my-replication-group-2

For more information, see BatchStopUpdateAction.