Oracle Goldengate 11g Complete Cookbook

Oracle Goldengate 11g Complete Cookbook

By : Ankur Gupta

Buy this Book

Oracle Goldengate 11g Complete Cookbook

By: Ankur Gupta

Buy this Book

Overview of this book

Oracle Goldengate 11g Complete Cookbook is your complete guide to all aspects of Goldengate administration. The recipes in this book will teach you how to setup Goldengate configurations for simple and complex environments requiring various filtering and transformations. It also covers various aspects of tuning and troubleshooting the replication setups using exception handling, custom fields, and logdump utility.The book begins by explaining some basic tasks like Installation and Process groups setup. You will then be introduced to some further topics including DDL replication and various options to perform Initial Loads. You will then learn some advanced administration tasks such as Multi Master replication setup and conflict resolution. Further recipes, contain the cross platform replication and high availability options for Goldengate.

Oracle GoldenGate 11g Complete Cookbook

Credits

About the Author

About the Reviewers

www.PacktPub.com

Preface

Free Chapter

Installation and Initial Setup

Introduction

Installing Oracle GoldenGate in a x86_64 Linux-based environment

Installing Oracle GoldenGate in a Windows environment

Enabling supplemental logging in the source database

Supported datatypes in Oracle GoldenGate

Preparing the source database for GoldenGate setup

Preparing the target database for GoldenGate setup

Setting up a Manager process

Setting up a Classic Capture Extract process

Setting up an Integrated Capture Extract process

Setting up a Datapump process

Setting up a Replicat process

Setting up GoldenGate Replication

Introduction

Setting up a simple GoldenGate replication configuration between two single node databases

Setting up a GoldenGate replication with multiple process groups

Configuring an Extract process to read from an Oracle ASM instance

Setting up a GoldenGate replication between Oracle RAC databases

Determining the size of trail file areas

Verifying the data transfer on the target system

Generating encryption keys

Encrypting database user passwords

Encrypting the trail files

Setting up a GoldenGate replication between tables with different structures using defgen

DDL Replication and Initial Load

Introduction

Performing an initial setup required for GoldenGate DDL replication

Setting up a GoldenGate DDL replication and verifying the changes

Performing an initial load using GoldenGate

Performing an initial load using an extract file to the GoldenGate's replicat method

Loading data using trail files to the Replicat process method

Loading data with files to the database utility method

Loading data with the GoldenGate direct load method

Loading data with bulk load to the SQL loader method

Mapping and Manipulating Data

Introduction

Setting up a GoldenGate replication with mapping between different columns

Adding custom fields for a replicated record using tokens

Adding custom fields to a replicated record using SQLEXEC

Filtering the records using the FILTER and WHERE clause

Mapping the changes to a target table and storing the transaction history in a history table

Creating a GoldenGate configuration to run a Shell script when an end-of-day processing record is replicated

Creating an exception handler to record the erroneous transactions in a GoldenGate configuration

Oracle GoldenGate High Availability

Introduction

Choosing a GoldenGate high availability option

Creating a highly available GoldenGate configuration using Oracle Clusterware and ACFS

Creating a highly available GoldenGate configuration using Oracle Clusterware and OCFS2

Creating a highly available GoldenGate configuration using Oracle Clusterware and DBFS

Manually switching over Oracle Clusterware-based configuration to the other node

Automatic failover of a DBFS-based configuration

Creating a set of parallel load balanced, highly available GoldenGate configurations using Oracle Clusterware and DBFS

Monitoring, Tuning, and Troubleshooting GoldenGate

Introduction

Steps to configure a BATCHSQL mode

Splitting the replication load into multiple process groups for optimal performance

Optimizing the network settings for a GoldenGate configuration

Performing a healthcheck of a live GoldenGate configuration

Script to perform a regular scheduled healthcheck of a live GoldenGate configuration

Steps to measure throughput of a GoldenGate configuration

Steps to re-instantiate a failed GoldenGate configuration

Steps to implement a Heartbeat mechanism for the GoldenGate replication

Advanced Administration Tasks – I

Introduction

Upgrading Oracle GoldenGate binaries

Table structure changes in GoldenGate environments with similar table definitions

Table structure changes in GoldenGate environments with different table definitions

Resolving GoldenGate errors using the logdump utility

Undoing the applied changes using the reverse utility

Creating an Integrated Capture with a downstream database for compressed tables

Advanced Administration Tasks – Part II

Introduction

Creating a GoldenGate configuration with a consistent state behind the target database

Replicating data from an active standby database in Archivelog mode only

Migrating from an Oracle Streams environment to Oracle GoldenGate

GoldenGate Administration role separation from the DBA team

Cross RDBMS replication using GoldenGate

Creating a multimaster GoldenGate replication configuration

GoldenGate Veridata, Director, and Monitor

Introduction

Setting up the Oracle GoldenGate Monitor server

Setting up Oracle GoldenGate Monitor Agents

Installing Oracle GoldenGate Director

Installing and using Oracle GoldenGate Director Client to manage the GoldenGate instances

Steps to set up the GoldenGate monitoring using OEM 12c

Steps to install Oracle GoldenGate Veridata

Steps to compare data between the source and target environment using Oracle GoldenGate Veridata

Index

Customer Reviews

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Setting up a GoldenGate replication between tables with different structures using defgen

By default, GoldenGate expects the table definitions in your source and target environments to be similar. However, this may not always be the case. If you have defined the mapping between different tables in the source and target environments or the mapped tables have dissimilar structures, you would need to do some extra configuration to make GoldenGate replication work. In this recipe we will look into the additional steps that are required for this.

Getting ready

For this recipe we will use the continuous replication setup for the SCOTT schema done in the Setting up a simple GoldenGate replication configuration between two single node databases recipe earlier in this chapter. We will create two additional tables in the target database with the following structures:

EMP_DIFFCOL_ORDER: EMP table with different column order
EMP_EXTRACOL: EMP table with an additional column LAST_UPDATE_TIME

We will replicate...

Oracle Goldengate 11g Complete Cookbook

By : Ankur Gupta

Oracle Goldengate 11g Complete Cookbook

By: Ankur Gupta

Overview of this book

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Setting up a GoldenGate replication between tables with different structures using defgen

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