GEM - A generalised event monitoring language for distributed systems
File(s)
Technical report
Author(s)
Mansouri-Samani, Masoud
Sloman, Morris
Type
Report
Abstract
Event based monitoring is critical for managing and debugging networks and distributed systems. This paper presents GEM - an interpreted Generalised Event Monitoring language. It allows high level, abstract events to be specified in terms of combinations of lower level events from different nodes in a loosely coupled distributed system. Event monitoring components can thus be distributed within the system to perform filtering, correlation and notification of events close to where they occur and thus reduce network traffic. GEM is a declarative rule based language in which the notion of real time has been closely integrated and various temporal constraints can be specified for event composition. The paper discusses the effect of communication delays on composite event detection and presents a tree based solution for dealing with out-of-order event arrivals at event monitors.
Date Issued
1995-07-12
Citation
Departmental Technical Report: 95/8, 1995, pp.1-26
ISSN
1469-4174
Publisher
Department of Computing, Imperial College London
Start Page
1
End Page
26
Journal / Book Title
Departmental Technical Report: 95/8
Copyright Statement
© 1995 E. Adalat. This report is available open access under a CC-BY-NC-ND (https://creativecommons.org/licenses/by-nc-nd/4.0/)
Publication Status
Published online