Rania Khalaf, Alexander Keller, et al.
IBM Systems Journal
We describe a novel approach for applying XML, XPath, and Resource Description Framework (RDF) to the problem of describing, querying and computing the dependencies among services in a distributed computing system. This becomes increasingly important in today's networked environments where applications and services rely on both local and outsourced sub-services. However, service dependencies are not made explicit in today's systems, thus making the task of problem determination particularly difficult. A key contribution of the paper is a web-based architecture for retrieving and handling dependency information from various managed resources. Its core component is a dependency query facility allowing the application of queries and filters to dependency models; its output is a consolidated dependency graph that can then be used by fault management applications to perform additional problem determination tasks or event correlation. The definition of an XML-based notation for specifying dependencies facilitates information sharing between the components involved in the process.
Rania Khalaf, Alexander Keller, et al.
IBM Systems Journal
Aaron B. Brown, Alexander Keller
NOMS 2006
Aaron B. Brown, Alexander Keller, et al.
IM 2005
Alexander Keller, Heiko Ludwig
LISA 2002