Distributed Database Concepts

SQL, NoSQL & NewSQL

On June 14, 2021December 21, 2021 By ricardo-jimenez-peris Posted in Distributed Database Concepts

Until several years ago, the database world was simple and all SQL. Nowadays, we also have NoSQL and NewSQL. Now the question is which one is better and for what? […]

Understanding the CAP Theorem and its No Relationship to Scalability

On May 24, 2021 By eduardo Posted in Distributed Database Concepts

What is the CAP theorem? It is actually a misnomer and a poorly understood result of distributed systems theory. Let’s start with the story. In 2000, Eric Brewer from UC […]

The Case for Shared Nothing

On March 22, 2021March 22, 2021 By ricardo-jimenez-peris Posted in Distributed Database Concepts

Shared-nothing has become the dominant parallel architecture for big data systems, such as MapReduce and Spark, analytics platforms, NoSQL databases and search engines [Özsu & Valduriez 2020]. The reason is […]

Understanding Cluster Replication Scalability

On March 8, 2021March 8, 2021 By ricardo-jimenez-peris Posted in Distributed Database Concepts

Cluster Replication and Logarithmic Scalability If you have been using cluster replication with some open source operational database, you might have noticed that they do not scale out well. If […]

Understanding Distributed Databases Scalability

On February 15, 2021March 15, 2021 By ricardo-jimenez-peris Posted in Distributed Database Concepts

Scalability & Performance What is scalability? Scalability is an overloaded term that has been perverted by technical marketing to confuse potential customers. Every system today would be advertised as scalable […]