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References to remote mobile objects in Thor

References to remote mobile objects in Thor References to Remote Mobile Objects in Thor MARK DAY, BARBARA LISKOV, UMESH ANDREW C. MYERS Massachusetts Institute of Technology MAHESHWARI, and Thor is a distributed object-oriented database where objects are stored persistently at highly available servers called object repositories, or ORS. In a large Thor system, performance tuning and system reconfiguration dictate that objects must be able to migrate among ORS.The paper describes two schemes for object references that support object migration, one using location-independent names and the other, location-dependent names. The paper analyzes the performance of the two schemes and concludes that location-dependent names are the right choice for systems like Thor, where we want fast accessto objects that have migrated. Management]: Systems ”distributed Categories and Subject Descriptors: H.2.4 [Database C.2.4 [Computer-Communication Networks]: Distributed Systems ”distributed systems; E.2 databases; D.4.7 [Operating Systems]: Organization and Desigr-distributed H.2.2 [Database Management]: [Data]: Data Storage Representations “1inked representations; Physical Design systems; General Terms: Design Additional Key Words and Phrases: Addressing, distributed object management, distributed object-oriented database, location-dependent reference, location-independent reference, naming, object migration, object mobility, object reference, scalability 1. INTRODUCTION In distributed systems of the future, we expect to find object-oriented databases whose objects reside at hundreds or thousands of nodes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png ACM Letters on Programming Languages and Systems (LOPLAS) Association for Computing Machinery

References to remote mobile objects in Thor

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Publisher
Association for Computing Machinery
Copyright
Copyright © 1993 by ACM Inc.
ISSN
1057-4514
DOI
10.1145/176454.176500
Publisher site
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Abstract

References to Remote Mobile Objects in Thor MARK DAY, BARBARA LISKOV, UMESH ANDREW C. MYERS Massachusetts Institute of Technology MAHESHWARI, and Thor is a distributed object-oriented database where objects are stored persistently at highly available servers called object repositories, or ORS. In a large Thor system, performance tuning and system reconfiguration dictate that objects must be able to migrate among ORS.The paper describes two schemes for object references that support object migration, one using location-independent names and the other, location-dependent names. The paper analyzes the performance of the two schemes and concludes that location-dependent names are the right choice for systems like Thor, where we want fast accessto objects that have migrated. Management]: Systems ”distributed Categories and Subject Descriptors: H.2.4 [Database C.2.4 [Computer-Communication Networks]: Distributed Systems ”distributed systems; E.2 databases; D.4.7 [Operating Systems]: Organization and Desigr-distributed H.2.2 [Database Management]: [Data]: Data Storage Representations “1inked representations; Physical Design systems; General Terms: Design Additional Key Words and Phrases: Addressing, distributed object management, distributed object-oriented database, location-dependent reference, location-independent reference, naming, object migration, object mobility, object reference, scalability 1. INTRODUCTION In distributed systems of the future, we expect to find object-oriented databases whose objects reside at hundreds or thousands of nodes.

Journal

ACM Letters on Programming Languages and Systems (LOPLAS) – Association for Computing Machinery

Published: Mar 1, 1993

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