AWS, Dynamodb, Database, Distributed Systems, NoSQL.
account may withdraw 500 euros twice if the second operation is done before the data is replicated. That would end up in an account with a total balance of 500 euros in negative. Source: https://unsplash.com/es/fotos/persona-con-tarjeta-blanca-y-roja-utWyPB8_FU8 Using eventual consistency reads is