Table of Contents
This document describes how to write replicated Berkeley DB applications for Berkeley DB version 4.8. The APIs used to implement replication in your application are described here. This book describes the concepts surrounding replication, the scenarios under which you might choose to use it, and the architectural requirements that a replication application has over a transactional application.
This book is aimed at the software engineer responsible for writing a replicated DB application.
This book assumes that you have already read and understood the concepts contained in the Berkeley DB Getting Started with Transaction Processing guide.
The following typographical conventions are used within in this manual:
Class names are represented in monospaced font, as are method
names. For example:
"DbEnv::open() is a
DbEnv class method."
Variable or non-literal text is presented in italics. For example: "Go to your DB_INSTALL directory."
Program examples are displayed in a monospaced font on a shaded background.
For example:
typedef struct vendor {
char name[MAXFIELD]; // Vendor name
char street[MAXFIELD]; // Street name and number
char city[MAXFIELD]; // City
char state[3]; // Two-digit US state code
char zipcode[6]; // US zipcode
char phone_number[13]; // Vendor phone number
} VENDOR;
In some situations, programming examples are updated from one chapter to the next. When
this occurs, the new code is presented in monospaced bold font. For example:
typedef struct vendor {
char name[MAXFIELD]; // Vendor name
char street[MAXFIELD]; // Street name and number
char city[MAXFIELD]; // City
char state[3]; // Two-digit US state code
char zipcode[6]; // US zipcode
char phone_number[13]; // Vendor phone number
char sales_rep[MAXFIELD]; // Name of sales representative
char sales_rep_phone[MAXFIELD]; // Sales rep's phone number
} VENDOR;
Finally, notes of special interest are represented using a note block such as this.
Beyond this manual, you may also find the following sources of information useful when building a transactional DB application: