On adding replies to publish-subscribe
On adding replies to publish-subscribe
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关于添加回复发布订阅
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
A. Monguzzi
中科院分区：
文献类型：
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作者：
G. Cugola;Matteo Migliavacca;A. Monguzzi
最近，发布-订阅通信模型作为传统通信模式（如请求/应答）的可行替代方案引起了开发人员的注意，因为它允许在运行时轻松添加或删除组件，从而为分布式应用程序的体系结构带来了灵活性。同时，使用这种模型构建复杂分布式应用程序的初步经验指出，如果没有请求/回复功能，通常很难生存。
Recently, the publish-subscribe communication model has attracted the attention of developers as a viable alternative to traditional communication schemas, like request/reply, for the flexibility it brings to the architecture of distributed applications, by allowing components to be easily added or removed at run-time. At the same time, first experiences in building complex distributed applications using such model point out how it is often hard to live without a request/reply facility.
We started from this consideration to introduce replies into the publish-subscribe model in a way that could minimize the impact on the positive characteristics of the model. In this paper we describe the resulting model and present four protocols to implement it, comparing them through the analysis of the results we gathered in running a large testbed on the PlanetLab network.