Technischer Bericht TR-1997-06

Hohl, Fritz; Klar, Peter; Baumann, Joachim: Efficient Code Migration for Modular Mobile Agents.
Universität Stuttgart, Fakultät Informatik, Fakultätsbericht Nr. 1997/06.
12 Seiten, englisch.
CR-Klassif.C.2.4 (Distributed Systems)
C.4 (Performance of Systems)
Keywordsmobile agents; code migration

This paper examines how an efficient code migration component for mobile agents can be designed, an aspect crucial to the migration performance and thus, for the overall performance of such a system. Therefore, after listing the require ments of code migration in this area, and a description of the code migration mechanisms of the Java applet model, a more appropriate approach is proposed. This new approach uses two mechanisms to transport code: one that is able to get classes in an efficient manner and one that is able to get any valid class by its ref erence. Both mechanisms use a code replacement policy that is able to handle a space restricted class storage. Finally the approach uses digital signatures to pro tect the code migration component, the codeserver, against modification attacks.

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Abteilung(en)Universität Stuttgart, Institut für Parallele und Verteilte Höchstleistungsrechner, Verteilte Systeme
Eingabedatum3. September 1997
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