How to avoid simultaneous execution in aws step function

问题

Currently I have a use case that a cloud watch rule will trigger a step function every 5 minutes. I want to have a logic to skip starting another execution if there is one execution already running in step function. Any way to do that?

回答1:

Instead of having your CloudWatch event rule trigger the Step Function directly, you could have it trigger a Lambda function. The Lambda function could check if there are any Step Function executions in the RUNNING state, via the ListExecutions API. If not, the Lambda function could start a new execution via the StartExecution API.

来源：https://stackoverflow.com/questions/46878423/how-to-avoid-simultaneous-execution-in-aws-step-function