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Efficient Information Flow Control by Reducing Meaningless Messages in P2PPSO Systems

  • Shigenari NakamuraEmail author
  • Tomoya Enokido
  • Leonard Barolli
  • Makoto Takizawa
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 926)

Abstract

In topic-based publish/subscribe (PS) model, each peer process (peer) only receives an event message whose publication topics include some common topic with the subscription topics. In a P2PPSO (P2P (peer-to-peer) type of topic-based PS with Object concept) model, each peer exchanges objects by publishing and receiving event messages with no centralized coordinator. Here, objects are denoted by topics and event messages are characterized by topics of the objects carried by the event messages. Suppose an event message \(e_j\) published by a peer \(p_j\) carries objects on some topics into a target peer \(p_i\). Here, objects in the peer \(p_j\) illegally flow to the peer \(p_i\) if the peer \(p_i\) is not allowed to subscribe the topics. An object of a peer \(p_i\) is illegal, whose topics the peer \(p_i\) is not allowed to subscribe. In this paper, we newly propose an ETOBSCO (Efficient TOBSCO) protocol where meaningless event messages are not published to reduce the number of event messages exchanged among peers. In the evaluation, we show the fewer number of event messages are delivered but longer update delay time to update replicas is taken in the ETOBSCO protocol.

Keywords

Causally ordering delivery Information flow control P2P (peer-to-peer) PS (publish/subscribe) model TBAC (topic-based access control) model 

Notes

Acknowledgements

This work was supported by Japan Society for the Promotion of Science (JSPS) KAKENHI Grant Numbers JP15H0295, JP17J00106.

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Shigenari Nakamura
    • 1
    Email author
  • Tomoya Enokido
    • 2
  • Leonard Barolli
    • 3
  • Makoto Takizawa
    • 1
  1. 1.Hosei UniversityTokyoJapan
  2. 2.Rissho UniversityTokyoJapan
  3. 3.Fukuoka Institute of TechnologyFukuokaJapan

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