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Organising LTL Monitors over Distributed Systems with a Global Clock

  • Christian Colombo
  • Yliès Falcone
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8734)

Abstract

Users wanting to monitor distributed systems often prefer to abstract away the architecture of the system, allowing them to directly specify correctness properties on the global system behaviour. To support this abstraction, a compilation of the properties would not only involve the typical choice of monitoring algorithm, but also the organisation of submonitors across the component network. Existing approaches, considered in the context of LTL properties over distributed systems with a global clock, include the so-called orchestration and migration approaches. In the orchestration approach, a central monitor receives the events from all subsystems. In the migration approach, LTL formulae transfer themselves across subsystems to gather local information.

We propose a third way of organising submonitors: choreography — where monitors are orgnized as a tree across the distributed system, and each child feeds intermediate results to its parent. We formalise this approach, proving its correctness and worst case performance, and report on an empirical investigation comparing the three approaches on several concerns of decentralised monitoring.

Keywords

Linear Temporal Logic System Cycle Global Clock Local Monitor Monitoring Algorithm 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Christian Colombo
    • 1
  • Yliès Falcone
    • 2
  1. 1.Department of Computer ScienceUniversity of MaltaMalta
  2. 2.Laboratoire d’Informatique de GrenobleUniversity of Grenoble-AlpesFrance

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