research-article

Using fail-stop proxies for enhancing services isolation in the OSGi service platform

Authors:

Walter Rudametkin,

Didier DonsezAuthors Info & Claims

MW4SOC '08: Proceedings of the 3rd workshop on Middleware for service oriented computing

Pages 7 - 12

https://doi.org/10.1145/1462802.1462804

Published: 01 December 2008 Publication History

Abstract

The OSGi Service Platform is becoming the de facto middleware for deploying modularized Java applications. It is a dynamic platform that relies on a service oriented approach for loose coupling, but the absence of separate object spaces for isolating services of different modules cannot guarantee that service providers from uninstalled modules will no longer be referenced by active code. This may lead to memory retention and inconsistencies (e.g. a stale service that provides invalid cached data) that can introduce silent faults in the system by propagating invalid information.

We present our ongoing work where we introduce an isolation layer between service consumer and provider by using dynamic proxies for services. When the corresponding service becomes unregistered (i.e. uninstalled) the mechanism is able to: 1) Guarantee that no consumers directly refer to the service provider; 2) allow finding out the misreferencing consumer code by using a fail-stop mechanism. We have tested this mechanism in different OSGi based applications and benchmarked it against other approaches for accessing services in the OSGi platform.

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Cited By

Gama KDonsez D(2010)A self-healing component sandbox for untrustworthy third party code executionProceedings of the 13th international conference on Component-Based Software Engineering10.1007/978-3-642-13238-4_8(130-149)Online publication date: 23-Jun-2010
https://dl.acm.org/doi/10.1007/978-3-642-13238-4_8

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Using fail-stop proxies for enhancing services isolation in the OSGi service platform

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Published In

cover image ACM Other conferences

MW4SOC '08: Proceedings of the 3rd workshop on Middleware for service oriented computing

December 2008

72 pages

ISBN:9781605583686

DOI:10.1145/1462802

Conference Chairs:
Karl M. Göschka
Vienna Univ. of Technology, Austria
,
Schahram Dustdar
Vienna Univ. of Technology, Austria
,
Frank Leymann
Univ. of Stuttgart, Germany
,
Vladimir Tosic
NICTA, Australia

Copyright © 2008 ACM.

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 01 December 2008

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Seventh Framework Programme

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Middleware '08

Middleware '08: 9th International Middleware Conference

December 1 - 5, 2008

Leuven, Belgium

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Cited By

Gama KDonsez D(2010)A self-healing component sandbox for untrustworthy third party code executionProceedings of the 13th international conference on Component-Based Software Engineering10.1007/978-3-642-13238-4_8(130-149)Online publication date: 23-Jun-2010
https://dl.acm.org/doi/10.1007/978-3-642-13238-4_8

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