Ricart and Agrawala's algorithm has the problem that if a process has crashed and does not reply to a request from another process to access a resources, the lack of response will be interpreted as denial of permission. We suggested that all requests be answered immediately to make it easy to detect

Ricart and Agrawala's algorithm has the problem that if a process has crashed and does not reply to a request from another process to access a resources, the lack of response will be interpreted as denial of permission. We suggested that all requests be answered immediately to make it easy to detect

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Concurrency Control

The simultaneous occurrence of two or more operations is called concurrence and the situation is called concurrency. In concurrency, the function of one operation can affect the function of the other and put data integrity at risk. Hence, management for the control of concurrency is required. The management or controlling system in the Database Management System (DBMS) that coordinates concurrent access is called the concurrency control system.

Question

Ricart and Agrawala's algorithm has the problem that if a process has
crashed and does not reply to a request from another process to access
a resources, the lack of response will be interpreted as denial of
permission. We suggested that all requests be answered immediately
to make it easy to detect

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