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Using Global Snapshots to Access Data Streams on the Grid

Summary: Using Global Snapshots to Access Data Streams
on the Grid
Beth Plale
Indiana University, Bloomington IN 47405, USA
Abstract. Data streams are a prevalent and growing source of timely
data. As streams become more prevalent, richer interrogation of the con-
tents of the streams is required. Value of the content increases dramati-
cally when streams are aggregated and distributed global behavior can be
interrogated. In this paper, we demonstrate that access to multiple data
streams should be viewed as one of deriving meaning from a distributed
global snapshot. We define an architecture for a data streams resource
based on the Data Access and Integration [2] model proposed in the
Global Grid Forum. We demonstrate that access to streams by means of
database queries can be intuitive. Finally, we discuss key research issues
in realizing the data streams model.
Keywords: grid computing, data stream systems, publish-subscribe,
continuous queries, OGSA-DAI, data management, dQUOB
1 Introduction


Source: Agrawal, Gagan - Department of Computer Science and Engineering, Ohio State University


Collections: Computer Technologies and Information Sciences