Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
Expert Solution & Answer
Book Icon
Chapter 19, Problem 25E

Explanation of Solution

a.

Beginning of the analysis pass:

  • The ARIES recovery algorithm scheme will flush the pages continuously without even waiting for the checkpoint.
    • It also makes use of Log Sequence Numbers (LSN) for implementation.
  • When a page is not included in the checkpoint dirty page at the start of the analysis p...

Explanation of Solution

b.

Rec LSN:

  • Rec LSN is one of the entries in DPT, which is used to reflect the LSN at the end of the log, at the point when the page is added to the DPT.
  • In the ARIES algorithm redo pass, the record is skipped if the LSN of the update log record is less than the Rec LSN of that page in DPT...

Blurred answer
Knowledge Booster
Background pattern image
Recommended textbooks for you
Text book image
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Text book image
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Text book image
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
Text book image
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Text book image
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Text book image
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education