7-dynamodb-streams-global-tables.md

DynamoDB Streams and Global Tables

• DynamoDB Streams

  • Time-ordered sequence of item-level changes in a table
  • Stored for 24 hours
  • Inserts, updates and deletes
  • Combine with Lambda functions for functionality similar to stored procedures

• Global Tables

  • Allows you to replicate DynamoDB data from one regaion to another

  • Managed Multi-master, multi-region replication

  • Based on DynamoDB streams

    • Need DynamoDB streams turned on to enable Global Tables

  • Multi-region redundancy for disaster recovery or high availabiltiy

  • Replication latency is under 1 second

  • Baked into DynamoDB.. no application rewrites required

  • Use Cases

    • Globally distributed applications