What is the most cost-effective solution for scheduling and executing an Apache Hive script to run daily?

The most cost-effective solution for scheduling and executing an Apache Hive script to run daily is to launch an EMR cluster via Lambda and run the script through CloudWatch Events. This approach allows for efficient resource utilization because you can only run the EMR cluster when needed, which helps to minimize costs associated with running a persistent cluster.

By using AWS Lambda, you can trigger the EMR cluster based on a schedule defined in CloudWatch Events. This serverless model ensures that you are not paying for idle resources, making it ideal for scenarios where scripts need to run periodically rather than continuously. Once the task is completed, you can configure the EMR cluster to terminate, further optimizing costs.

This method stands out among the other options by balancing the need for automation in scheduling with the cost efficiency of only using resources when necessary. While other options might involve more overhead or continuous resource usage, launching an EMR cluster on demand and automating the execution through event-based triggers achieves a blend of flexibility, automation, and cost saving efficiently.