Advanced Feature: Configuring Cascading Chaining
77
performance can be improved 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
global configuration attribute in the
cn=config
entry. Increasing the thread number
can improve performance; the default thread number is
30
. Restart the server after changing the
thread count to apply the changes.
3.3.7. Advanced Feature: Configuring Cascading Chaining
The database link can be configured 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.
•
Section 3.3.7.1, “Overview of Cascading Chaining”
•
Section 3.3.7.2, “Configuring Cascading Chaining Defaults Using the Console”
•
Section 3.3.7.3, “Configuring Cascading Chaining Using the Console”
•
Section 3.3.7.4, “Configuring Cascading Chaining from the Command Line”
•
Section 3.3.7.5, “Detecting Loops”
•
Section 3.3.7.6, “Summary of Cascading Chaining Configuration Attributes”
•
Section 3.3.7.7, “Cascading Chaining Configuration Example”
3.3.7.1. 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:
The client application sends a modify request to Server 1. Server one contains a database link that
forwards the operation to Server 2, which contains another database link. The database link on Server
2 forwards the operations to server three, which contains the data the clients wants to modify in a
database. Two hops are required to access the piece of data the client want to modify.
During a normal operation request, a client binds to the server, and then any ACIs applying to that
client are evaluated. With cascading chaining, the client bind request is evaluated on Server 1, but the
Summary of Contents for DIRECTORY SERVER 8.0
Page 18: ...xviii ...
Page 29: ...Configuring the Directory Manager 11 6 Enter the new password and confirm it 7 Click Save ...
Page 30: ...12 ...
Page 112: ...94 ...
Page 128: ...110 ...
Page 190: ...Chapter 6 Managing Access Control 172 4 Click New to open the Access Control Editor ...
Page 224: ...206 ...
Page 324: ...306 ...
Page 334: ...316 ...
Page 358: ...340 ...
Page 410: ...392 ...
Page 420: ...402 ...
Page 444: ...426 ...
Page 454: ...436 ...
Page 464: ...446 ...
Page 484: ...466 ...
Page 512: ...494 ...
Page 522: ...504 ...