Minimum topology requirements
To run a failure mode assessment, your service must have a topology with a data flow relationship between at least two resources.
A failure mode assessment analyzes how failures propagate through your architecture by examining the relationships between resources. Without a data flow relationship connecting at least two resources, there is no data flow to analyze. The assessment cannot produce meaningful findings.
Valid topology (assessment can run)
Any topology where at least two resources are connected by a data flow relationship is valid. For example:
-
An Application Load Balancer routing traffic to an Amazon ECS cluster.
-
A Lambda function reading from a DynamoDB table.
-
An Amazon SQS queue feeding messages to a Lambda function.
Invalid topology (assessment cannot run)
A topology with only isolated resources and no data flow relationships between them is invalid. For example, a service that discovers a single Amazon S3 bucket or several unconnected Amazon EC2 instances has no data flow for the assessment to analyze.
