This is the first in a series of posts about WAN replication, a VoltDB feature that’s currently under development. It provides a high level overview of our direction. More detailed posts will follow as we progress through our engineering iterations.
As an in-memory transactional DBMS, VoltDB delivers breakthrough performance and scale. Two of the product’s most significant innovations, however, are in database availability and durability:
- Availability – VoltDB delivers high availability (HA) via a synchronous multi-master feature called K-safety. When a database is running “K-safe”, multiple (two or more) node replicas are kept transactionally consistent. If one of those nodes