Web applications rely on replicated databases to place data close to their users, and to
tolerate failures. Many replication systems opt for eventual consistency, which offers …

Data items are usually replicated in modern distributed data stores to obtain high
performance and availability. However, the availability-consistency and latencyconsistency …

In the first part, we study consistency in a transactional systems, and focus on reconciling
scalability with strong transactional guarantees. We identify four scalability properties, and …

Despite decades of research and practical experience, developers have few tools for
programming reliable distributed applications without resorting to expensive coordination …

Conflict-free replicated data types (CRDTs) aid programmers develop highly available and
scalable distributed systems. However, the literature describes only a limited portfolio of …

Modern large-scale distributed systems often rely on eventually consistent replicated stores,
which achieve scalability in exchange for providing weak semantic guarantees. To …

To achieve high availability, large-scale distributed systems have to replicate data and to
minimise coordination between nodes. Literature and industry increasingly adopt …

Conflict-free replicated data types (CRDTs) are popular for optimistic replication and
ensuring strong eventual consistency (SEC) in distributed systems. However, reversibility is …

Conflict-free Replicated Datatypes can simplify the design of predictable eventual
consistency. They can be classified into state-based or operation-based. Operation-based …

Replication maintains replicas (copies) of critical data on multiple computers and allows
access to any one of them. It is the critical enabling technology of distributed services …