Scylla Summit 2019

Scylla began with a Cassandra compatibility story, implementing Cassandra’s query language (CQL) and replicating its user-visible architecture. Recently we introduced “Alternator” - an experimental feature adding compatibility with a second NoSQL database: Amazon’s DynamoDB. In this talk we look at why DynamoDB’s API was chosen as a good target for our API extension, how DynamoDB is similar to Scylla - and how it differs, and how we can implement DynamoDB’s API in Scylla. We will describe our progress so far in making Alternator compatible with DynamoDB - and what still remains to be done so that any DynamoDB application can run unmodified on Scylla.