Unleashing Innovation: A Retrospective on The New York Times’ Mainframe to AWS Migration

This article details The New York Times' successful migration of their mainframe-based Customer Information System (CIS) to AWS, renamed Aristo, highlighting key achievements and lessons learned in their cloud modernization journey.

• Migrated COBOL-based application to Java on AWS in March 2018
• Successfully processed over 6.5 million transactions and billed half a billion dollars in first year
• Challenged and disproved three major mainframe migration myths:
  • Scalability and performance capabilities
  • System reliability
  • Staff retention and skill transition
• Key improvements included:
  • Better application integration
  • Enhanced observability using Datadog and Sumo Logic
  • Improved performance (e.g., reduced batch job time from 20 to 4 hours)
• Future plans include migrating from Oracle to Amazon RDS PostgreSQL to reduce costs

The migration demonstrated that moving from mainframe to cloud can successfully retain core functionality while providing increased flexibility and performance.