Improving Data Consistency in Mobile Computing using Isolation-Only Transactions.

Abstract

Disconnected operation is an important technique for providing mobile access to shared data in distributed file systems. However, data inconsistency resulting from partitioned sharing remains a serious concern. This paper presents a new mechanism called isolation-only transaction(IOT) that uses serializability constraints to automatically detect read/write conflicts. The IOT consistency model provides a set of options for automatic and manual conflict resolution. In addition, application specific knowledge can be incorporated to detect and resolve conflicts. To preserve upward Unix compatibility, the IOT mechanism is provided as an optional file system facility and its flexible interfaces allow any existing Unix application to be executed as an IOT. This paper describes high level system design and implementation and concludes with related work and current status.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1995
Accession Number
ADA293110

Entities

People

  • Lu Qi
  • Mahadev Satyanarayanan

Organizations

  • Carnegie Mellon University

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Automatic
  • Computer Programming
  • Computer Programs
  • Computer Science
  • Computers
  • Consistency
  • Control Systems
  • Detection
  • Environment
  • Guarantees
  • Mobile Computing
  • Mobile Devices
  • Models
  • Multithreading
  • Operating Systems
  • Software Development

Fields of Study

  • Computer science

Readers

  • Cybersecurity.
  • Database Systems and Applications
  • Parallel and Distributed Computing.

Technology Areas

  • 5G
  • 5G - Internet of Things