Distributed lock management for mobile transactions

Jin Jing, Omran Bukhres, Ahmed Elmagarmid

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

37 Citations (Scopus)

Abstract

In this paper, we present a new lock management scheme which allows a real unlock for an item to be executed at any copy site of that item; the site may be different from the copy site on which the read lock is set. The scheme utilizes the replicated copies of data items to reduce the message costs incurred by the mobility of the transaction host. We demonstrate this idea in an optimistic locking algorithm called O2PL-MT (Optimistic Two Phase Locking for Mobile Transactions). Like its counterpart algorithm O2PL (Optimistic Two Phase Locking), O2PL-MT grants read locks immediately on demand and defers write locks until the commitment time. However, O2PL-MT requires the transmission of fewer messages than O2PL in a mobile environment in which data items are replicated.

Original languageEnglish
Title of host publicationProceedings - International Conference on Distributed Computing Systems
Editors Anon
Place of PublicationPiscataway, NJ, United States
PublisherIEEE
Pages118-125
Number of pages8
Publication statusPublished - 1 Jan 1995
Externally publishedYes
EventProceedings of the 15th International Conference on Distributed Computing Systems - Vancouver, Can
Duration: 30 May 19952 Jun 1995

Other

OtherProceedings of the 15th International Conference on Distributed Computing Systems
CityVancouver, Can
Period30/5/952/6/95

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ASJC Scopus subject areas

  • Hardware and Architecture

Cite this

Jing, J., Bukhres, O., & Elmagarmid, A. (1995). Distributed lock management for mobile transactions. In Anon (Ed.), Proceedings - International Conference on Distributed Computing Systems (pp. 118-125). IEEE.