Collecting Metrics for CORBA-Based Distributed Systems |
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Authors: | John D McGregor Il-Hyung Cho Brian A Malloy E Lowry Curry Chanika Hobatr |
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Affiliation: | (1) Dept. of Computer Science, Clemson University, USA |
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Abstract: | The Common Object Request Broker Architecture (CORBA) supports the creation of distributed systems that cross processor, language and paradigm boundaries. These systems can be large and complex entities that consume considerable resources in their creation and execution. Measurements of characteristics of software systems is an important area of study in general and of particular interest for distributed systems. In this paper, we present a specific technique for instrumenting components in a distributed system. The technique constructs a wrapper around the component being measured. The wrapper monitors interactions with the ORB (Object Request Broker) and other components. Each wrapper mimics the interface of the component that it is wrapping so that the remaining objects in the system do not need modification. Two approaches to wrapping the component are presented and contrasted. The result is an efficient and modular technique that can quickly be applied to a component. |
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