High-level migration strategies

With DynamoDB as your chosen target and a clear understanding of your migration type – homogeneous or heterogeneous – you should now have an initial version of your target data model. This model should address most, if not all, of your application’s access patterns and may include secondary indexes, streaming options, and a separate analytical/reporting pipeline. It could involve simple key-value access or more complex design patterns to manage relationships between multiple entities, potentially leading to a single-table design.

In this section, the focus shifts to creating and executing a migration plan to transition your application from its current database to DynamoDB. We will start by exploring online and offline migration strategies.

Online and offline migrations

Online migrations occur while the application remains active, often termed zero-downtime migrations. These require careful coordination to transfer data...