We are investigating intermittent errors resulting from issues in AWS us-west-2

Error rates have decreased within CDP. However, AWS have not reported the issue as resolved, so we are continuing to monitor the situation.

Update from AWS:
> 11:33 AM PDT We continue to work on resolving the elevated error rates and latencies for invokes on API Gateway endpoints in the US-WEST-2 Region. We continue to see a significant improvement in error rates, starting at 10:40 AM PDT, but are not seeing full recovery yet. The issue is caused by contention within the subsystem that is responsible for request processing within the API Gateway service. Engineers are engaged and have applied traffic filters as a precautionary measure, while they work to identify the root cause and resolve the issue. Engineers continue to work to reduce contention within the affected subsystem, which we believe will resolve the elevated error rates and latencies. Customers with applications that use API Gateway, or customers invoking Lambda functions via API Gateway, will be experiencing elevated error rates and latencies as a result of this issue. The AWS services listed below are also experiencing elevated error rates as a result of this issue. While we have seen improvements in error rates since 10:40 AM PDT, recovery has stalled and we do not have a clear ETA on full recovery. For customers that have dependencies on API Gateway and are experiencing error rates, we do not have any mitigations to recommend to address the issue on the customer side. We do expect error rates to continue to improve as contention with the affected subsystem resides, and will provide further updates as recovery progresses.

We are continuing to work on a fix for this issue.

This has been confirmed to be due to issues at AWS: https://health.aws.amazon.com/health/status

We are monitoring the situation, and once resolved, we will follow-up with AWS for mitigation options if it occurs again.

Quote from AWS:
> We continue to see elevated error rates and latencies for invokes on API Gateway endpoints in the US-WEST-2 Region. While engineers continue to work towards root cause, we have deployed traffic filters from sources with significant increases in traffic prior to the event. As a result of these traffic filters, we are seeing a reduction in error rates and latencies, but continue to work towards full recovery. Although error rates are improving, we do not yet have an ETA for full recovery. The issue is also affecting API requests to some AWS services, including those listed below. Amazon Connect is experiencing increased failures in handling new calls, chats, and tasks as well as issues with user login in the US-WEST-2 Region. We will continue to provide updates as we progress.

We are currently investigating this issue.