Is AWS CloudFormation down?
Current AWS CloudFormation status is UP

We continue to investigate increased error rates and latencies for the DynamoDB APIs in the US-WEST-2 Region. We have seen some improvement in error rates over the last 15 minutes but customers may still be experiencing errors. We continue to work on resolving the issue and will keep you updated on our progress.

Most customers should begin trending towards recovery of error rates and increased delays in network propagation for newly launched EC2 instances in a single Availability zone (use1-az2). We have been able to get additional healthy capacity online, which has allowed us to make progress on the backlog of network mappings. Our estimated time to recovery of the underlying subsystem is within the next hour. Once the main event has recovered, we will work to recover the PrivateLink data plane in the affected Availability Zone, which we expect to take several hours. We will also need to shift traffic back in for any services that are affected. While we are seeing the beginning signs of recovery, we recommend keeping traffic shifted out of the affected Availability Zone for now.

We are experiencing increased latencies when creating, updating, and deleting AWS CloudFormation stacks in the US-WEST-2 Region. Customers may notice their Cloudformation stacks appearing in 'UPDATE_ROLLBACK_IN_PROGRESS' state. We have identified the root cause and are actively working on mitigating the issue.

5:19 PM PDT We have restored network connectivity within the affected Availability Zone in the EU-CENTRAL-1 Region. The vast majority of affected EC2 instances have now fully recovered but we’re continuing to work through some EBS volumes that continue to experience degraded performance. The environmental conditions within the affected Availability Zone have now returned to normal levels. We will provide further details on the root cause in a subsequent posts, but can confirm that there was no fire within the facility.
4:59 PM PDT Network connectivity has been restored within the affected Availability Zone in the EU-CENTRAL-1 Region and we are starting to see some recovery of affected RDS instances. We are continuing to work toward full recovery of the remaining RDS instances.

4:33 PM PDT We have restored network connectivity within the affected Availability Zone and continue to work on full recovery of EC2 instances and EBS volumes. Customers should begin to see recovery at this stage.
4:46 PM PDT We are starting to see some recovery in API errors and latencies in the EU-CENTRAL-1 Region and continue to work towards full recovery.
4:47 PM PDT We are starting to see some recovery in API errors in the EU-CENTRAL-1 Regions and continue to work towards full recovery.
4:59 PM PDT Network connectivity has been restored within the affected Availability Zone in the EU-CENTRAL-1 Region and we are starting to see some recovery of affected RDS instances. We are continuing to work toward full recovery of the remaining RDS instances.
5:16 PM PDT We are investigating elevated error rates for the AWS CloudFormation APIs in the EU-CENTRAL-1 Region and are actively working to resolve the issue.
5:18 PM PDT We are investigating elevated error rates for the AWS CloudFormation APIs in the EU-CENTRAL-1 Region and are actively working to resolve the issue.