Coping with API Evolution for Running, Mission-Critical Applications Using Virtual Execution Environment

Seventh International Conference on Quality Software (QSIC 2007) Pub Date : 2007-10-11 DOI:10.1109/QSIC.2007.22

Bashar Gharaibeh, Tien N. Nguyen, J. Morris Chang

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引用次数: 1

Abstract

Recent research showed that the majority of compatibility-breaking changes in a component-based, object-oriented software system are refactorings [5]. The software updating process in such system with the presence of heavily refactored application programming interface (API) is largely manual and disruptive to running, mission-critical applications, which are expected to run continuously without any interruptions. To address the online, API update issue for mission-critical systems, we have developed an online updating framework based on virtual execution environment (VEE) such as Java virtual machine. The framework extends the VEE to take the API change log, which records changes to API components, and seamlessly apply proper updates to the running system without human intervention and without shutting down the system. This framework was implemented as an extension to Jikes Research virtual machine. Our experimental study showed that our online update tool requires little overhead while maintaining the consistent state of the updated running application.

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使用虚拟执行环境处理运行的关键任务应用程序的API演变

最近的研究表明，在基于组件的、面向对象的软件系统中，大多数破坏兼容性的更改都是重构[5]。在这样的系统中，由于存在大量重构的应用程序编程接口(API)，软件更新过程在很大程度上是手动的，并且会破坏正在运行的关键任务应用程序，这些应用程序预计将连续运行，而不会出现任何中断。为了解决关键任务系统的在线API更新问题，我们开发了一个基于虚拟执行环境(VEE)(如Java虚拟机)的在线更新框架。该框架扩展了VEE，以获取API更改日志(记录对API组件的更改)，并在没有人工干预和关闭系统的情况下，无缝地将适当的更新应用于正在运行的系统。这个框架是作为Jikes Research虚拟机的扩展实现的。我们的实验研究表明，我们的在线更新工具在维护更新后的运行应用程序的一致状态时只需要很少的开销。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Seventh International Conference on Quality Software (QSIC 2007)

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