Consistency in a Stream Warehouse
Source: AT&T Labs
A stream warehouse is a Data Stream Management System (DSMS) that stores a very long history, e.g. years or decades; or equivalently a data warehouse that is continuously loaded. A stream warehouse enables queries that seamlessly range from real-time alerting and diagnostics to long-term data mining. However, continuously loading data from many different and uncontrolled sources into a real-time stream warehouse introduces a new consistency problem: users want results in as timely a fashion as possible, but "Stable" results often require lengthy synchronization delays.