Starting today, you can rewind your job bookmarks for your Glue Spark ETL jobs to any previous job run. AWS Glue tracks data that has been processed during a previous run of an ETL job by storing state information from the job run. This persisted state information is called a job bookmark.

from Recent Announcements https://aws.amazon.com/about-aws/whats-new/2019/10/aws-glue-provides-ability-to-rewind-job-bookmarks-spark-etl-jobs/