NDLI: Cautious transaction schedulers with admission control

Content Provider	ACM Digital Library
Author	Kameda, Tiko Ibaraki, Toshihide Katoh, Naoki
Copyright Year	1985
Abstract	We propose a new class of schedulers, called cautious schedulers, that grant an input request if it will not necessitate any rollback in the future. In particular, we investigate cautious WRW-schedulers that output schedules in class WRW only. Class WRW consists of all schedules that are serializable, while preserving the write-read and read-write conflict, and is the largest polynomially $\textit{recognizable}$ subclass of serializable schedules currently known. It is shown, in this paper however, that cautious $WRW-\textit{scheduling}$ is, in general, NP-complete. Therefore, we introduce a special type (type 1R) of transaction, which consists of no more than one read step (an indivisible set of read operations) followed by multiple write steps. It is shown that cautious WRW-scheduling can be performed efficiently if all transactions are of type 1R and if admission control can be exercised. Admission control rejects a transaction unless its first request is immediately grantable.
Starting Page	205
Ending Page	229
Page Count	25
File Format	PDF
ISSN	03625915
e-ISSN	15574644
DOI	10.1145/3857.3860
Volume Number	10
Issue Number	2
Journal	ACM Transactions on Database Systems (TODS)
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1985-06-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Information Systems

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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