ARIES Recovery Algorithm

Table of contents

ARIES Recovery Algorithm

Recovery Scheme Metrics

Key Features of Aries

Key Aries Features (contd)

More Aries Features

Latches and Locks

Buffer Manager

Buffer Manager (Contd)

Some Notation

Compensation Log Records

Normal Processing

Recovery Phases

Analysis Pass

Redo Pass

Undo Pass

Data Structures Used in Aries

Log Record Structure

Transaction Table

Dirty Pages Table

Dirty Page Table (contd)

Normal Processing Details

Updates

Updates (Contd.)

Split Log Records

Savepoints

Rollback

More on Rollback

Transaction Termination

Checkpoints

Checkpoint (contd)

Restart Processing

Result of Analysis Pass

Redo Pass

More on Redo Pass

Undo Pass

Undo Optimizations

Undo Optimization (Contd)

Transaction Recovery

Checkpoints During Restart

Media Recovery

Media Recovery (Contd)

Nested Top Actions

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Author: S. Sudarshan

E-mail: sudarsha@cse.iitb.ernet.in

Homepage: www.cse.iitb.ernet.in/~sudarsha

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