Advanced Feature: Configuring Cascading Chaining; Overview Of Cascading Chaining - Red Hat DIRECTORY SERVER 7.1 - ADMINISTRATOR Administrator's Manual

Creating and Maintaining Database Links
While the database link waits for results from the remote server, it can process
additional operations. By default, the number of threads used by the server is
However, when using database links, you can improve performance by
increasing the number of threads available for processing operations. While the
local CPU waits for a response from a remote server, it can process other
operations rather than stand idle.
To change the number of threads used for processing operations, change the
nsslapd-threadnumber
The default thread number is
number to
the server to implement your changes.

Advanced Feature: Configuring Cascading Chaining

You can configure your database link to point to another database link, creating a
cascading chaining operation. A cascading chain occurs any time more than one
hop is required to access all of the data in a directory tree.
The section contains the following topics:
•

Overview of Cascading Chaining

• Configuring Cascading Chaining Defaults Using the Console
• Configuring Cascading Chaining Using the Console
• Configuring Cascading Chaining from the Command-Line
• Summary of Cascading Chaining Configuration Attributes
• Cascading Chaining Configuration Example
Overview of Cascading Chaining
Cascading chaining occurs when more than one hop is required for the directory
to process a client application's request.
For example, consider the following scenario:
128 Red Hat Directory Server Administrator's Guide • May 2005
global configuration attribute in the
30
to improve performance. After changing the thread number, restart
50
. For example, you can increase the thread
.
20
entry.
cn=config