'Log record' diaporamas de présentation

Chapter 16: Recovery System

Chapter 16: Recovery System. Failure Classification Storage Structure Recovery and Atomicity Log-Based Recovery Remote Backup Systems. Chapter 16: Recovery System. Transaction failure : Logical errors : transaction cannot complete due to some internal error condition

2.17k views • 95 slides

MULTIUSER DATABASES : Concurrency and Transaction Management

MULTIUSER DATABASES : Concurrency and Transaction Management. Banking Application. Entities in a banking application: Customers Employees Accounts In an operational bank database, customers use the ATMs, internet, and phones to interact with their accounts

959 views • 79 slides

DISTRIBUTED TRANSACTION

DISTRIBUTED TRANSACTION. FASILKOM UNIVERSITAS INDONESIA. What is a Transaction?. An atomic unit of database access, which is either completely executed or not executed at all.

683 views • 58 slides

ARIES Recovery Algorithm

ARIES Recovery Algorithm. ARIES: A Transaction Recovery Method Supporting Fine Granularity Locking and Partial Rollback Using Write-Ahead Logging C. Mohan, D. Haderle, B. Lindsay, H. Pirahesh, and P. Schwarz ACM Transactions on Database Systems, 17(1), 1992 Slides prepared by

870 views • 42 slides

CS411 Database Systems

CS411 Database Systems. 12: Recovery obama and eric schmidt http://www.youtube.com/watch?v=k4RRi_ntQc8 sysadmin song http://www.youtube.com/watch?v=udhd9fmOdCs 14th century sysadmin http://www.youtube.com/watch?v=8UXAF-CUmIA. Bad things happen, but the DB contents must live on regardless.

594 views • 42 slides

CS511 Design of Database Management Systems

CS511 Design of Database Management Systems. Lecture 11: Logging and Recovery Kevin C. Chang. Announcement. Reschedule: Next Wed class ? 3/3 Thursday 5pm 1320 DCL. Please attend if you can!. Recovery: Atomicity and Durability. Atomicity:

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Atomic Actions

Atomic Actions. Atomic actions. Recovery at the application level is simpler to program if the computation is a sequence of sub-computations and each of these is Either executed in full Or completely fails to execute

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DURABILITY OF TRANSACTIONS AND CRASH RECOVERY

DURABILITY OF TRANSACTIONS AND CRASH RECOVERY. These are mostly the slides of your textbook !. ACID Properties of transactions. A tomicity C onsistency I solation D urability. System Crashes. System failure due to: Problem in the processor Problem in the memory due to a bug

378 views • 29 slides

Crash Recovery

Crash Recovery. R&G - Chapter 20. If you are going to be in the logging business, one of the things that you have to do is to learn about heavy equipment. Robert VanNatta, Logging History of Columbia County. Review: The ACID properties.

458 views • 28 slides

Recovery System

Recovery System. ?????? ???? ???????. ?????? ????. Transaction failure : Logical errors : transaction cannot complete due to some internal error condition System errors : the database system must terminate an active transaction due to an error condition (e.g., deadlock)

384 views • 27 slides

Crash Recovery

Crash Recovery. Lecture 23 Ramakrishnan - Chapter 20. If you are going to be in the logging business, one of the things that you have to do is to learn about heavy equipment. Robert VanNatta, Logging History of Columbia County. Review: The ACID properties.

438 views • 27 slides

Crash Recovery

Crash Recovery. Chapter 18. Review: The ACID properties. A tomicity: All actions in the Xact happen, or none happen. C onsistency: If each Xact is consistent, and the DB starts consistent, it ends up consistent. I solation: Execution of one Xact is isolated from that of other Xacts.

366 views • 26 slides

Crash Recovery

Crash Recovery. Chapter 18. Review: The ACID properties. A tomicity: All actions in the Xact happen, or none happen. C onsistency: If each Xact is consistent, and the DB starts consistent, it ends up consistent. I solation: Execution of one Xact is isolated from that of other Xacts.

379 views • 26 slides

Crash Recovery

Crash Recovery. Chapter 20. If you are going to be in the logging business, one of the things that you have to do is to learn about heavy equipment. Robert VanNatta, Logging History of Columbia County. Review: The ACID properties.

449 views • 26 slides

Two Techniques For Improving Distributed Database Performance

Two Techniques For Improving Distributed Database Performance. ICS 214B Presentation Ambarish Dey Vasanth Venkatachalam March 18, 2004. Issues In Distributed Databases. fast communication among clients data requested by a client can be located and transferred quickly

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ICS 321 Fall 2010 Overview of Transaction Processing

ICS 321 Fall 2010 Overview of Transaction Processing. Asst. Prof. Lipyeow Lim Information & Computer Science Department University of Hawaii at Manoa. Transactions in SQL. After connection to a database, a transaction is automatically started

361 views • 15 slides

ICS 321 Spring 2011 Overview of Transaction Processing

ICS 321 Spring 2011 Overview of Transaction Processing. Asst. Prof. Lipyeow Lim Information & Computer Science Department University of Hawaii at Manoa. Transactions in SQL. After connection to a database, a transaction is automatically started

259 views • 15 slides

ICS 321 Fall 2010 Introduction to Database Systems

ICS 321 Fall 2010 Introduction to Database Systems. Asst. Prof. Lipyeow Lim Information & Computer Science Department University of Hawaii at Manoa. Data, Database, DBMS. A database : a collection of related data. Represents some aspect of the real world (aka universe of discourse).

296 views • 15 slides

9. Role-Based Access Control (RBAC) Role Classification Algorithm

9. Role-Based Access Control (RBAC) Role Classification Algorithm. Prof. Bharat Bhargava Center for Education and Research in Information Assurance and Security (CERIAS) and Department of Computer Sciences Purdue University http://www.cs.purdue.edu/people/bb bb@cs.purdue.edu

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Logging

397 views • 12 slides