Distributed operating system: Difference between revisions

Revision as of 16:36, 21 November 2020

Revision as of 05:03, 22 November 2020

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{{short description|Operating system designed to operate on multiple systems over a network}}

A '''distributed operating system''' is a software over a collection of independent, [[Computer network|networked]], [[Inter-process communication|communicating]], and physically separate computational nodes.

They handle jobs which are serviced by multiple CPUs.<ref name="Tanenbaum1993">{{cite journal |last=Tanenbaum |first=Andrew S |date=September 1993 |title=Distributed operating systems anno 1992. What have we learned so far? |journal=Distributed Systems Engineering |volume=1 |issue=1 |pages=3–10 |doi=10.1088/0967-1846/1/1/001|bibcode=1993DSE.....1....3T |doi-access=free }}</ref> Each individual node holds a specific software subset of the global aggregate operating system. Each subset is a composite of two distinct service provisioners.<ref name="Nutt1992">{{cite book|last=Nutt|first=Gary J.|title=Centralized and Distributed Operating Systems|url=https://archive.org/details/centralizeddistr0000nutt |url-access=registration|year=1992|publisher=Prentice Hall|isbn=978-0-13-122326-4}}</ref> The first is a ubiquitous minimal [[Kernel (computing)|kernel]], or [[microkernel]], that directly controls that node's hardware. Second is a higher-level collection of ''system management components'' that coordinate the node's individual and collaborative activities. These components abstract microkernel functions and support user applications.<ref name="Gościński1991">{{cite book|last=Gościński|first=Andrzej|title=Distributed Operating Systems: The Logical Design|url=https://books.google.com/books?id=ZnYhAQAAIAAJ|year=1991|publisher=Addison-Wesley Pub. Co.|isbn=978-0-201-41704-3}}</ref>

The microkernel and the management components collection work together. They support the system's goal of integrating multiple resources and processing functionality into an efficient and stable system.<ref name="Fortier1986">{{cite book|last=Fortier|first=Paul J.|title=Design of Distributed Operating Systems: Concepts and Technology|url=https://books.google.com/books?id=F7QmAAAAMAAJ|year=1986|publisher=Intertext Publications|isbn=9780070216211}}</ref> This seamless integration of individual nodes into a global system is referred to as ''transparency'', or ''[[single system image]]''; describing the illusion provided to users of the global system's appearance as a single computational entity.<!-- is transparency required for membership in the "dos" group?-->

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Research and experimentation efforts began in earnest in the 1970s and continued through 1990s, with focused interest peaking in the late 1980s. A number of distributed operating systems were introduced during this period; however, very few of these implementations achieved even modest commercial success.

Fundamental and pioneering implementations of primitive distributed operating system component concepts date to the early 1950s.<ref name=dyseac>{{cite journal |last1=Leiner |first1=Alan L. |title=System Specifications for the DYSEAC |journal=Journal of the ACM |date=April 1954 |volume=1 |issue=2 |pages=57–81 |doi=10.1145/320772.320773 |doi-access=free |via=ACM Digital Library}}</ref><ref name=lincoln_tx2>{{cite conference |title=The Lincoln TX-2 Input-Output System |first=James W. |last=Forgie |date=February 26–28, 1957 |conference=Western Joint Computer Conference: Techniques for Reliability |publisher=Association for Computing Machinery |___location=Los Angeles, California |pages=156–160 |isbn=9781450378611 |doi=10.1145/1455567.1455594 |doi-access=free |via=ACM Digital Library}}</ref><ref name=intercomm_cells>{{cite conference |author=C. Y. Lee |title=Intercommunicating cells, basis for a distributed logic computer |date=December 4–6, 1962 |conference=Fall Joint Computer Conference |publisher=Association for Computing Machinery |via=ACM Digital Library |___location=Philadelphia, Pennsylvania |pages=130–136 |doi=10.1145/1461518.1461531 |doi-access=free}}</ref> Some of these individual steps were not focused directly on distributed computing, and at the time, many may not have realized their important impact. These pioneering efforts laid important groundwork, and inspired continued research in areas related to distributed computing.<ref name="Dreyfus_1958_Gamma60">{{citation |title=System design of the Gamma 60 |author-first=Phillippe |author-last=Dreyfus |author-link=Philippe Dreyfus |work=Proceedings of the May 6–8, 1958, [[Western Joint Computer Conference]]: Contrasts in Computers |___location=Los Angeles |date=1958-05-08 |orig-year=1958-05-06 |id=IRE-ACM-AIEE '58 (Western) |publication-place=ACM, New York, NY, USA |pages=130–133 |url=https://www.computer.org/csdl/proceedings/afips/1958/5052/00/50520130.pdf |access-date=2017-04-03 |url-status=live |archive-url=https://web.archive.org/web/20170403224547/https://www.computer.org/csdl/proceedings/afips/1958/5052/00/50520130.pdf |archive-date=2017-04-03}}</ref><ref>Leiner, A. L., Notz, W. A., Smith, J. L., and Weinberger, A. 1958. Organizing a network of computers to meet deadlines. In Papers and Discussions Presented At the December 9–13, 1957, Eastern Joint Computer Conference: Computers with Deadlines To Meet (Washington, D.C., December 09–13, 1957). IRE-ACM-AIEE '57</ref><ref>Leiner, A. L., Smith, J. L., Notz, W. A., and Weinberger, A. 1958. PILOT, the NBS multicomputer system. In Papers and Discussions Presented At the December 3–5, 1958, Eastern Joint Computer Conference: Modern Computers: Objectives, Designs, Applications (Philadelphia, Pennsylvania, December 03–05, 1958). AIEE-ACM-IRE '58 (Eastern). ACM, New York, NY, 71-75.</ref><ref>Bauer, W. F. 1958. Computer design from the programmer's viewpoint. In Papers and Discussions Presented At the December 3–5, 1958, Eastern Joint Computer Conference: Modern Computers: Objectives, Designs, Applications (Philadelphia, Pennsylvania, December 03–05, 1958). AIEE-ACM-IRE '58 (Eastern). ACM, New York, NY, 46-51.</ref><ref>Leiner, A. L., Notz, W. A., Smith, J. L., and Weinberger, A. 1959. PILOT—A New Multiple Computer System. J. ACM 6, 3 (Jul. 1959), 313-335.</ref><ref>Estrin, G. 1960. [https://dl.acm.org/doi/abs/10.1145/1460361.1460365 Organization of computer systems: the fixed plus variable structure computer]. In Papers Presented At the May 3–5, 1960, Western Joint IRE-AIEE-ACM Computer Conference (San Francisco, California, May 03–05, 1960). IRE-AIEE-ACM '60 (Western). ACM, New York, NY, 33-40.</ref>

In the mid-1970s, research produced important advances in distributed computing. These breakthroughs provided a solid, stable foundation for efforts that continued through the 1990s.