Accession Number : ADA256222


Title :   Transactional Distributed Shared Memory


Corporate Author : CARNEGIE-MELLON UNIV PITTSBURGH PA SCHOOL OF COMPUTER SCIENCE


Personal Author(s) : Hastings, Andrew B


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a256222.pdf


Report Date : Jul 1992


Pagination or Media Count : 184


Abstract : Atomic transactions have proven to be an important technique for constructing reliable applications. Traditionally, transactions have been extended to distributed environments through the use of function shipping, a technique in which message passing or remote procedure calls are used to invoke computational requests on remote nodes. Recently, the data sharing approach to constructing distributed applications has received attention in the form of distributed file systems and distributed memory. Applying the data sharing approach to transactions produces transactional distributed memory (TDSM) which yield benefits for a certain class of distributed application. The union of transactions and distributed shared memory offers synergies in transaction recovery, concurrency control, and coherency control, but introduces challenges in transaction recovery. In this dissertation, I describe the design of a system that provides TDSM in the form of distributed recovery virtual memory. Using the external pager interface of the Mach operating system, I implemented a prototype based on the Camelot distributed transaction facility. I analyze the prototype and its performance, offer techniques for improving the design of future TDSM systems, and characterize the applications for which TDSM is useful.


Descriptors :   *DISTRIBUTED DATA PROCESSING , *MEMORY DEVICES , CONTROL , FUNCTIONS , INTERFACES , THESES , SHARING , BENEFITS , SHIPPING , APPROACH , ATTENTION , EXTERNAL , NODES , PROTOTYPES , FACILITIES , RECOVERY , ENVIRONMENTS


Subject Categories : Computer Hardware


Distribution Statement : APPROVED FOR PUBLIC RELEASE