NDLI: State of the art issues in distributed databases (Panel session): Site autonomy issues in the R@@@@ distributed database system

Content Provider	ACM Digital Library
Author	Selinger, P.
Abstract	It is desirable to have a Distributed Database Management System (DDBMS) whose behavior and control is as identical as possible to that used in single site database management systems. We call this notion site autonomy. Preserving the autonomy of sites which join a DDBMS network is essential to the peace of mind of its managers and users, and more technically, is essential in an environment where sites and communication lines fail. To achieve resilience to failures of sites and communication lines (these are indistinguishable from one site's viewpoint), there can be no reliance on centralized functions or services. This means no global dictionary, no global information collector for deadlock detection, and no broadcast of local events such as file creation or addition of a new site. Aside from these prohibitions, this goal of site autonomy also implies that sites should perform their own compilation, their own binding of print names to internal names, their own decomposition of compound objects (such as relational views), and their own authorization checking. This talk discusses the concept of site autonomy in further detail and discusses several specific issues on which the site autonomy philosophy has an impact.
Starting Page	281
Ending Page	282
Page Count	2
File Format	PDF
ISBN	0897910494
DOI	10.1145/800175.809900
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1981-01-01
Publisher Place	New York
Access Restriction	Subscribed
Content Type	Text

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