Recent demands for storing and querying big data have revealed various shortcomings of
traditional relational database systems. This, in turn, has led to the emergence of a new kind …

Over the years, different meanings have been associated with the word consistency in the
distributed systems community. While in the'80s “consistency” typically meant strong …

Minimizing coordination, or blocking communication between concurrently executing
operations, is key to maximizing scalability, availability, and high performance in database …

Large-scale distributed systems often rely on replicated databases that allow a programmer
to request different data consistency guarantees for different operations, and thereby control …

Geo-replicated storage systems are at the core of current Internet services. The designers of
the replication protocols used by these systems must choose between either supporting low …

Storage as a Service (StaaS) is a vital component of cloud computing by offering the vision
of a virtually infinite pool of storage resources. It supports a variety of cloud-based data store …

User-facing online services utilize geo-distributed data stores to minimize latency and
tolerate partial failures, with the intention of providing a fast, always-on experience …

The rise of data-intensive" Web 2.0" Internet services has led to a range of popular new
programming frameworks that collectively embody the latest incarnation of the vision of …

Conflict-free replicated data types (CRDTs) are a promising tool for designing scalable,
coordination-free distributed systems. However, constructing correct CRDTs is difficult …

Many transactions in web applications are constructed ad hoc in the application code. For
example, developers might explicitly use locking primitives or validation procedures to …