Slide 1 CIS 720 Concurrency Control Slide 2 Timestamp-based concurrency control Assign a timestamp ts(T) to each transaction T. Each data item x has two timestamps: rt(x):…

Slide 1 Crash Recovery Slide 2 Review: The ACID properties A A tomicity: All actions in the Xaction happen, or none happen. C C onsistency: If each Xaction is consistent,…

Slide 1 Copyright © 2007 Ramez Elmasri and Shamkant B. Navathe Slide 18- 1 Slide 2 Copyright © 2007 Ramez Elmasri and Shamkant B. Navathe Chapter 18 Concurrency Control…

Slide 1 Slide 2 Chapter 18 Concurrency Control Techniques Copyright © 2004 Pearson Education, Inc. Slide 3 Copyright © 2004 Ramez Elmasri and Shamkant Navathe Elmasri/Navathe,…

Slide 1 (c) Oded Shmueli 20041 Two Phase Locking, Lecture 3 (BHG, Chap. 3) The practical foundation Slide 2 (c) Oded Shmueli 2004 2 Topics Part I: Foundations Part II: Beyond…

Slide 1 (1)(1) Consistency & Replication Chapter No. 6 Muhammad Rafi Meng Min Guan Donghai Slide 2 (2)(2) Motivation Large Scale distributed systems required scalability…

Transaction Manager Concurrency Control Recovery Management Transactions A transaction program is a unit of program execution that accesses and possibly updates various data…

Consistency and Replication Chapter 6 Topics Reasons for Replication Models of Consistency Data-centric consistency models Client-centric consistency models Protocols for…

Chapter 10 Consistency And Replication Topics Motivation Data-centric consistency models Client-centric consistency models Distribution protocols Consistency protocols Motivation…

SYNCHRONIZATION TECHNIQUES BASED ON TWO-PHASE LOCKING Presented by Miss Napasakorn SukJay Miss Lumpapun Punchoojit Agenda Background of Two-Phase locking Basic 2PL Implementation…