[jchrisa]

Congrats to the DynamoDB team for going beyond the traditional limits of NoSQL.

There is a new breed of databases that use consensus algorithms to enable global multi-region consistency. Google Spanner and FaunaDB where I work are part of this group. I didn’t catch anything about the implementation details of DynamoDB transactions in the article. If they are using a consensus approach, expect them to add multi-region consistency soon. If they are using a traditional active/active replication approach, they’ll be limited to regional replication.

[erik_seaberg]

They warn about other regions seeing incomplete transactions (if you opt into transactions on global tables), which fits with the current "copy each new item from the stream" async replication.