One of the main value propositions doesn't seem to be mentioned here; maintainability. DynamoDB is schema-less and tables can be created/deleted on the fly. C

One of the main value propositions doesn't seem to be mentioned here; maintainability. DynamoDB is schema-less and tables can be created/deleted on the fly. Cassandra schemas are a royal pain in the ass and poorly documented. Depending on the cassandra version all schema-changes require cluster-restarts and/or various magic incantations that you better get exactly right or you may incur service-outage and data-loss. DynamoDB is generally "pay and forget". Keeping a cassandra ring healthy is a major undertaking.