The Design and Analysis of a Distributed Processing System (Classic Reprint)

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Excerpt from The Design and Analysis of a Distributed Processing System The design of a distributed operating system based on a small set of synchronous message passing primitives, send-receive-reply, is explored. A description of how the UNIX operating system can be extended by these primitives to support a local area network environment consisting of diskless workstations connected by Ethernet to remote file servers is given. A performance analysis of the consequences of having all files transferred remotely over the network is presented. It is concluded that the proposed distributed UNIX is competitive with traditional time-sharing operating systems. This thesis is divided into two parts. In the first part, a concise message passing methodology is introduced and explored. The send-receive-reply message primitives are the basis of this methodology and allows for a client-server model of interprocess communication. Their use in Thoth [Cheriton 79], a real-time operating system, and V [Cheriton 83], a distributed version of Thoth, is examined. Thoth and V implement a generalization of a server process, known as an administrator, which provides a well organized process-structured solution to the client-server model. The ideas of Thoth and V are then applied to the UNIX [Ritchie 74] operating system to explore the possibility of a distributed version of UNIX. Specifically, the V kernel architecture of single user diskless work stations connected by Ethernet [Metcalfe 76] to remote file servers is the basis for our distributed UNIX architecture. This implies that the UNIX file system, formerly a kernel service, is now distributed to a remote processor as a server process. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.