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Conference Paper: Impact of priority assignment on optimistic concurrency control in distributed real-time databases

TitleImpact of priority assignment on optimistic concurrency control in distributed real-time databases
Authors
Lam, KamyiuLee, Victor CSHung, SheunglunKao, Benjamin CM
KeywordsComputers
Computer systems
Issue Date1996
PublisherIEEE.
Citation
Proceedings Of The International Workshop On Real-Time Computing Systems And Applications/Rtcsa, 1996, p. 128-134 How to Cite?
DOI: http://dx.doi.org/10.1109/RTCSA.1996.554969
AbstractIn the studies of real-time concurrency control protocols (RT-CCPs), it is always assumed that earliest deadline first (EDF) is employed as the CPU scheduling algorithm. However, using purely (ultimate) deadline for priority assignment may not be suitable for distributed real-time database systems (DRTDBS) in which there exist different kinds of transactions, such as global and local transactions. In order to improve the performance, different priority assignment heuristics have to be used. In this paper, we have investigated the performance of different priority assignment heuristics for subtransactions in DRTDBS with optimistic concurrency control (OCC) protocol. It is found that the heuristics, which are suitable for distributed real-time systems, are not suitable for DRTDBS. We find that our proposed heuristic, which considers both deadline constraint and data contention, can give the best performance.
Persistent Identifierhttp://hdl.handle.net/10722/45571
ISSN
1530-1427

 

DC FieldValueLanguage
dc.contributor.authorLam, Kamyiuen_HK
dc.contributor.authorLee, Victor CSen_HK
dc.contributor.authorHung, Sheunglunen_HK
dc.contributor.authorKao, Benjamin CMen_HK
dc.date.accessioned2007-10-30T06:29:26Z-
dc.date.available2007-10-30T06:29:26Z-
dc.date.issued1996en_HK
dc.identifier.citationProceedings Of The International Workshop On Real-Time Computing Systems And Applications/Rtcsa, 1996, p. 128-134en_HK
dc.identifier.issn1530-1427en_HK
dc.identifier.urihttp://hdl.handle.net/10722/45571-
dc.description.abstractIn the studies of real-time concurrency control protocols (RT-CCPs), it is always assumed that earliest deadline first (EDF) is employed as the CPU scheduling algorithm. However, using purely (ultimate) deadline for priority assignment may not be suitable for distributed real-time database systems (DRTDBS) in which there exist different kinds of transactions, such as global and local transactions. In order to improve the performance, different priority assignment heuristics have to be used. In this paper, we have investigated the performance of different priority assignment heuristics for subtransactions in DRTDBS with optimistic concurrency control (OCC) protocol. It is found that the heuristics, which are suitable for distributed real-time systems, are not suitable for DRTDBS. We find that our proposed heuristic, which considers both deadline constraint and data contention, can give the best performance.en_HK
dc.format.extent845990 bytes-
dc.format.extent4319 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherIEEE.en_HK
dc.relation.ispartofProceedings of the International Workshop on Real-Time Computing Systems and Applications/RTCSAen_HK
dc.rights©1996 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.-
dc.subjectComputersen_HK
dc.subjectComputer systemsen_HK
dc.titleImpact of priority assignment on optimistic concurrency control in distributed real-time databasesen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1530-1427&volume=&spage=128&epage=135&date=1996&atitle=Impact+of+priority+assignment+on+optimistic+concurrency+control+in+distributed+real-time+databasesen_HK
dc.identifier.emailKao, Benjamin CM:kao@cs.hku.hken_HK
dc.identifier.authorityKao, Benjamin CM=rp00123en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/RTCSA.1996.554969en_HK
dc.identifier.scopuseid_2-s2.0-0030411673en_HK
dc.identifier.hkuros25248-
dc.identifier.spage128en_HK
dc.identifier.epage134en_HK
dc.identifier.scopusauthoridLam, Kamyiu=7403656886en_HK
dc.identifier.scopusauthoridLee, Victor CS=7402507432en_HK
dc.identifier.scopusauthoridHung, Sheunglun=7201936153en_HK
dc.identifier.scopusauthoridKao, Benjamin CM=35221592600en_HK
dc.identifier.issnl1530-1427-

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