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Simulating a Distributed Collaborative Environment

This study examines the interactions between clients and servers in a distributed artifact management system. It explores the impact of adding a middleware with fine-grain locking on the collision rate of checkouts. Various client behaviors, including random, clustered, and hybrid, are analyzed. The initial version adds a proxy middleware to the server machine, which maintains a database of checked out artifacts with subsections. Checkouts are only passed to the server as needed. The server and repository remain unchanged. The results of the system with middleware are discussed, along with suggestions for future work, including implementing a parsing algorithm for authentic subsection generation in artifacts and improving analysis and modeling of client edit behaviors.

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Simulating a Distributed Collaborative Environment

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  1. Simulating a Distributed Collaborative Environment Jon A. Preston CSc8350 – Dr. Xiaolin Hu

  2. Purpose • Examine the interactions among clients and servers in a distributed artifact management system • Examine how adding a middleware (capable of fine-grain locking) can be added and how such a change effects collision rate (fail rate) of checkouts • Examine various client behaviors • Random, Clustered, Hybrid

  3. Initial Version

  4. Adding the Proxy Middleware • Middleware added to ServerMachine • Maintains DB of artifacts checked out • Each artifact contains subsections • Check out/in passed to server only as needed • Server & Repository unchanged

  5. System with Middleware

  6. Results

  7. Future Work • Implement a parsing algorithm to generate authentic subsections in artifacts (open source repository) • Better analyze and model clients’ edit behaviors

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