A data stream publish/subscribe architecture with self-adapting queries

A. J G Gray, Werner Nutt

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

In data stream applications, streams typically arise from a geographically distributed collection of producers and may be queried by consumers, which may be distributed as well. In such a setting, a query can be seen as a subscription asking to be informed of all tuples that satisfy a specific condition. We propose to support the publishing and querying of distributed data streams by a publish/subscribe architecture. To enable such a system to scale to a large number of producers and consumers requires the introduction of republishers which collect together data streams and make the merged stream available. If republishers consume from other republishers, a hierarchy of republishers results. We present a formalism that allows distributed data streams, published by independent stream producers, to be integrated as views on a mediated schema. We use the formalism to develop methods to adapt query plans to changes in the set of available data streams and allow consumers to dynamically change which streams they subscribe to. © Springer-Verlag Berlin Heidelberg 2005.

Original languageEnglish
Title of host publicationOn the Move to Meaningful Internet Systems 2005: CoopIS, DOA, and ODBASE - OTM Confederated International Conferences, CoopIS, DOA, and ODBASE 2005, Proceedings
Pages420-438
Number of pages19
Volume3760 LNCS
DOIs
Publication statusPublished - 2005
EventOTM Confederated International Conferences, CoopIS, DOA, and ODBASE 2005 - On the Move to Meaningful Internet Systems 2005: CoopIS, DOA, and ODBASE - Agia Napa, Cyprus
Duration: 31 Oct 20054 Nov 2005

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume3760 LNCS
ISSN (Print)0302-9743

Conference

ConferenceOTM Confederated International Conferences, CoopIS, DOA, and ODBASE 2005 - On the Move to Meaningful Internet Systems 2005: CoopIS, DOA, and ODBASE
CountryCyprus
CityAgia Napa
Period31/10/054/11/05

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