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Abstract: Accessing numerous widely-distributed data sources poses significant new challenges for query optimization and execution. Congestion or failure in the network introduce highly-variable response times for wide-area data access. This paper is an initial exploration of solutions to this variability. We investigate a class of dynamic, run-time query plan modification techniques that we call query plan scrambling. We present an algorithm which modifies execution plans on-the-fly in response to... (Update)
Context of citations to this paper: More
.... runtime environment parameters has been an important area of research, starting from early 90 s [6, 5] and continuing to today [2, 1, 7, 8, 3, 4]. Depending on when the adaptation takes place, previous approaches to query adaptation can be broadly categorized into proactive and...
...a self adaptive query processing system. We identify three important failure modes for executing queries on the Internet: network delays [1], memory shortage, and sudden unavailability of remote data servers. This extended abstract will give a brief overview of the design of...
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BibTeX entry: (Update)
L. Amsaleg, M. Franklin, A. Tomasic, and T. Urha. Scrambling Query Plans to Cope with Unexpected Delays. In Proc. of the Int. Conf. on Parallel and Distributed Information Systems(PDIS), Miami Beach, Florida, December 1996. http://citeseer.ist.psu.edu/amsaleg96scrambling.html More
@inproceedings{ amsaleg96scrambling,
author = "Laurent Amsaleg and Michael J. Franklin and Anthony Tomasic and Tolga Urhan",
title = "Scrambling Query Plans to Cope With Unexpected Delays",
booktitle = "{PDIS}",
pages = "208-219",
year = "1996",
url = "citeseer.ist.psu.edu/amsaleg96scrambling.html" }
Citations (may not include all citations):330 Query Evaluation Techniques for Large Databases (context) - Graefe - 1993
228 Shoring Up Persistent Applications - Carey, DeWitt et al. - 1994
168 Query Caching and Optimization in Distributed Mediator Syste.. - Adali, Candan et al. - 1996
127 Scaling Heterogeneous Databases and the Design of DISCO - Tomasic, Raschid et al. - 1996
77 Optimization of Parallel Query Execution Plans in XPRS (context) - Hong, Stonebraker - 1993
60 and replanning for information gathering (context) - Knoblock, executing - 1995
50 Query Processing in the ObjectStore Database System (context) - Orenstein, Haradhvala et al. - 1992
45 Performance Tradeoffs for Client-Server Query Processing - Franklin, J'onsson et al. - 1996
39 Design and Implementation of the Glue-Nail Database System - Derr, Morishita et al. - 1993
29 Dynamic Query Optimization in Rdb/VMS (context) - Antoshenkov - 1993
21 Object-Oriented Multidatabase Systems (context) - Bukhres, Elmagarmid - 1996
16 Reducing Multidatabase Query Response Time by Tree Balancing (context) - Du, Shan et al. - 1995
13 InterViso: Dealing with the Complexity of Federated Database.. (context) - Templeton, Henley et al. - 1995
10 Optimization of Dynamic Query Execution Plans (context) - Cole, Graefe - 1994
10 PRPL: A Database Workload Specification Language (context) - Brown - 1992
7 Modern Database Systems: The Object Model (context) - Shan, Ahmen et al. - 1995
5 Distributed Query Processing in a Multiple Database System (context) - Chen, Brill et al. - 1989
4 and M. Tan. Semantic Data Caching and Replacement. 22nd VLDB.. (context) - Dar, Franklin et al. - 1996
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