Book Image

Oracle GoldenGate 11g Implementer's guide

By : John P Jeffries, John P Jeffries
Book Image

Oracle GoldenGate 11g Implementer's guide

By: John P Jeffries, John P Jeffries

Overview of this book

Data replication is an important part of any database system that is growing due to today's demand for real-time reporting and regulatory requirements. GoldenGate has recently become Oracle's strategic real-time data replication solution. Until now, very little has been written about how to implement GoldenGate in a production enterprise environment where performance, scalability, and data integrity are paramount. Your days of dismay over the lack of documentation over Oracle GoldenGate are over. Welcome to Oracle GoldenGate 11g Implementer's guide – a comprehensive practical book, which will deliver answers to your questions in a clear, concise style, allowing you to progress effectively in a timeline-driven environment. Based on the author's own experience, this long awaited GoldenGate administration book has all that is required to install, design, configure, and tune data replication solutions suited to every environment. Be the first to master GoldenGate's power and flexibility by reading this unique hands-on implementation companion. Systems need to send data from one system to another in a timely manner to satisfy the ever-increasing need for speed. Regardless of whether you are a novice or an expert – or someone in between – this book will guide you through all the steps necessary to build a high-performance GoldenGate solution on Oracle11gR1. Expert users can dive into key topic areas such as performance tuning or troubleshooting, while novice users can step through the early installation and configuration chapters, later progressing to the advanced chapters. This book is more than an implementation guide. It offers detailed real-life examples, encouraging additional thought and discussion by going beyond the manual. With Oracle GoldenGate 11g Implementer's guide in hand, you'll be designing, installing, and configuring high-performance solutions using GoldenGate in less time than you can say "replicate"
Table of Contents (21 chapters)
Oracle GoldenGate 11 Implementer's guide
Credits
Foreword
About the Author
About the Reviewers
www.PacktPub.com
Preface
GGSCI Commands
GoldenGate Installed Components
The Future of Oracle GoldenGate
Index

Managing process startup


In a near real-time data replication environment, we don't want to incur high latencies nor outages due to process failure. GoldenGate has a mechanism to automatically restart Extract or Replicat processes should they fail. The AUTORESTART parameter of the Manager process governs this and provides additional options on retry attempts.

-- GoldenGate Manager parameter file
PORT 7809
AUTORESTART EXTRACT *, RETRIES 3, WAITMINUTES 1, RESETMINUTES 60

In addition, the AUTOSTART parameter enables automatic start up of either the Extract or Replicat processes when the Manager process starts. The following example configuration is for the Extract processes:

AUTOSTART EXTRACT *

For Replicat processes:

AUTOSTART REPLICAT *

For both:

AUTOSTART ER *

Once manually stopped by executing the GGSCI STOP command, the Extract or Replicat processes will not auto-start. This is important for planned maintenance operations.

The Manager process report file MGR.rpt contains information regarding...