Accession Number : ADA266296


Title :   Understanding Partitions and the No Partition Assumption


Descriptive Note : Special technical


Corporate Author : CORNELL UNIV ITHACA NY DEPT OF COMPUTER SCIENCE


Personal Author(s) : Ricciardi, Aleta ; Schiper, Andre ; Birman, Kenneth


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a266296.pdf


Report Date : Jun 1993


Pagination or Media Count : 12


Abstract : The paper discusses partitions is asynchronous message-passing systems. In such systems slow processes and slow links can lead to virtual partitions that indistinguishable from real ones. This raises the following question: what is a partition in an asynchronous system? To overcome the impossibility of detecting crashed processes in an asynchronous system, our system model incorporates a failure suspector to detect (possibly erroneously) process failures. Based on failure suspicions we give a definition of partitions that accounts for real partitions as well as virtual ones. We show that under certain assumptions about the process behavior, any incorrect failure suspicion inevitably partitions the system. Wethen show how to interpret the absence of partition assumption


Descriptors :   *COMPUTER COMMUNICATIONS , COMMUNICATIONS TRAFFIC , MESSAGE PROCESSING , ASYNCHRONOUS COMPUTERS


Subject Categories : Computer Systems


Distribution Statement : APPROVED FOR PUBLIC RELEASE