AWS Certified Data Analytics Specialty 2021 - Hands-On! - Glue ETL: Developer Endpoints, Running ETL Jobs with Bookmarks

The video tutorial explains how to develop ETL scripts using AWS Glue development endpoints. It covers connecting to these endpoints through various methods, such as Apache Zeppelin, SageMaker, and PyCharm. The tutorial also discusses running Glue jobs using Cron-style scheduling and job bookmarks to manage data processing. Additionally, it highlights integrating Glue with CloudWatch for monitoring and triggering actions based on job outcomes.

What role does CloudWatch play in monitoring Glue jobs?

Describe how you can prevent reprocessing of old data in Glue jobs.