DEPENDABILITY AND PERFORMANCE-MEASURES FOR THE DATABASE PRACTITIONER

Authors
TEOREY TJ NG WT
Citation
Tj. Teorey et Wt. Ng, DEPENDABILITY AND PERFORMANCE-MEASURES FOR THE DATABASE PRACTITIONER, IEEE transactions on knowledge and data engineering, 10(3), 1998, pp. 499-503
Citations number
16
Categorie Soggetti
Computer Science Artificial Intelligence","Computer Science Information Systems","Engineering, Eletrical & Electronic","Computer Science Artificial Intelligence","Computer Science Information Systems
Journal title
IEEE transactions on knowledge and data engineering → ACNP
ISSN journal
10414347
Volume
10
Issue
3
Year of publication
1998
Pages
499 - 503
Database
ISI
SICI code
1041-4347(1998)10:3<499:DAPFTD>2.0.ZU;2-V
Abstract
We estimate the availability, reliability, and mean transaction time ( response time) for repairable database configurations, centralized or distributed, in which each service component is continuously available for repair. Reliability, the probability that the entire transaction can execute properly without failure, is computed as a function of mea n time to failure (MTTF) and mean time to repair (MTTR). Mean transact ion time in the system is a function of the mean service delay time fo r the transaction over all components, plus restart delays due to comp onent failures, plus queuing delays for contention. These estimates ar e potentially applicable to more generalized distributed systems.