Inside a DynamoDB to ScyllaDB Migration

The blog post provides a comprehensive guide on migrating from Amazon DynamoDB to ScyllaDB, detailing each step in the process and offering practical advice for ensuring data consistency and minimizing disruption to live applications. It highlights the use of ScyllaDB Spark Migrator for migrations to ScyllaDB Alternator, a DynamoDB-compatible API, and discusses alternatives for scenarios where the Migrator isn't suitable, such as when using ScyllaDB's Cassandra-compatible API (CQL) or when only streaming a specific set of events. The post covers creating source and destination tables, back-filling historical data via an S3 export, synchronizing the ScyllaDB cluster with DynamoDB using AWS Lambda, and enabling DynamoDB Streams for real-time data updates. It emphasizes the importance of permissions, configuration adjustments for Lambda functions, and the creation of triggers to process DynamoDB changes effectively. Finally, it provides a method to compare records between the two databases to ensure synchronization, while also inviting readers to explore additional resources and case studies of successful migrations.