Modern cloud systems are geo-replicated to improve application latency and availability.
Transactional consistency is essential for application developers; however, the …

A large family of distributed transactional protocols have a common structure, called
Deferred Update Replication (DUR). DUR provides dependability by replicating data, and …

Many distributed applications require transactions. However, transactional protocols that
require strong synchronization are costly in large scale environments. Two properties help …

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 …

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 …

Most distributed database systems offer weak consistency models in order to avoid the
performance penalty of coordinating replicas. Ideally, distributed databases would offer …

My research focus is on sharing mutable information in large-scale distributed systems, ie,
ones with high latency, subject to partial failures, and comprising large amounts of data. This …

Eventually consistent replicated databases offer excellent responsiveness and fault-
tolerance, but expose applications to the complexity of concurrency andfailures. Recent …

Cloud-based applications, such as social networking or eCommerce, require to replicate
data across several sites to provide responsiveness, availability, and disaster tolerance …