Sunrise: A Real-Time Event-Processing Framework
Authors:
- Jerry Baulier
- Stephen Blott
- Henry F. Korth
- Avi Silberschatz
Abstract:
Sunrise is a high-throughput, real-time, event-processing and
aggregation framework developed at Bell Labs. It offers many of the
data-management features of a conventional database system such as
high-level, declarative programming interfaces and the traditional
ACID correctness guarantees for transactions. In addition, Sunrise is
also adapted and enhanced to meet the needs of high-performance
applications. High throughput is achieved through a shared-nothing
parallel architecture which can deliver close to linear scale-up in
practice. Real-time responsiveness (on the order of as little as a
few milliseconds per transaction) is achieved by utilizing
DataBlitz---a main-memory database system---as the underlying
single-site storage manager. DataBlitz offers transactional access to
persistent data at main-memory speeds.
Sunrise's strength lies not only in its performance, but also in its
flexibility. The Sunrise framework consists of a data-management
kernel, together with a set of tools for embedding
application-specific services within that kernel. Service creation
and maintenance is a high-level procedure based on GUI interfaces and
a fourth-generation service definition language. Newly-created
services---or existing services, adapted to new requirements---are
compiled, and can be installed on-line, without interrupting
transaction processing. In this way, Sunrise remains available, even
as event-processing logic evolves over time.