AWS Glue Job Bookmark Tutorial -    • AWS Tutorials - Using Job Bookmarks i...  

AWS Glue and Lake Formation Tutorial -    • AWS Tutorials - AWS Glue Job Optimiza...  

AWS Glue uses job bookmark to track processing of the data to ensure data processed in the previous job run does not get processed again. Job bookmarks help AWS Glue maintain state information and prevent the reprocessing of old data. Learn to use Job bookmarks with JDBC data sources in the ETL Glue Job.