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Explore several key performance enhancements introduced in WebSphere® Information Integrator V8.2. In particular, this article includes a detailed discussion of trusted and fenced wrapper architecture, along with improvements in SMP and MPP parallelism.
Information integration provides an end-to-end solution for transparently managing both the volume and diversity of data that exists in enterprises and organizations today. The underlying principle of information integration is for users to be able to see all of the data they use as if it resides at a single source.
WebSphere Information Integrator (WebSphere II) shields the requester from all the complexities associated with accessing data in diverse locations, including connectivity, semantics, formats, and access methods. Using a standards-based language such as structured query language (SQL) WebSphere II enables users, or applications acting on their behalf, to access information transparently without concern for its physical implementation.
In brief, this article covers the following performance-related improvements:
- Fenced and trusted wrapper architecture. We explore the WebSphere II process model and describe the difference between trusted and fenced wrappers; the latter being a prerequisite for exploitation of partitioned database resources. We also discuss the scalability benefits the fenced wrapper can bring to federated servers supporting a high number of concurrent users.
- Intra-partition parallelism for SMP systems. We discuss when it is appropriate to enable intra-partition parallelism in a federated environment and the benefits that can be achieved in doing so.
- Inter-partition parallelism for partitioned database servers, detailing how the new features improve resource utilization and query response times for WebSphere II instances that are partitioned.
| Description | Name | Size | Download method |
|---|---|---|---|
| Article in PDF format | dm-0502harris.pdf | 281 KB | HTTP |
Information about download methods Get Adobe® Reader®
Simon Harris is a Performance Engineer within the WebSphere Federation Server development team in the Silicon Valley Laboratory. Simon has been working with federated database technology since its inception in IBM in 1995, supporting many customers in both a pre- and post-sales capacity throughout Europe, the Middle-East, and Africa.
