Red Hat Directory Server 8.0 Administrator's Guide

NOTE
By default, access controls set on the server containing the database link are not
evaluated. To override this default, use the nsCheckLocalACI attribute in the
cn=database_link, cn=chaining database,cn=plugins,cn=config entry.
However, evaluating access controls on the server containing the database link
is not recommended except with cascading chaining.
3.6. Advanced Feature: Tuning Database Link Performance
The following sections provide information on tuning the performance of database links through
connection and thread management.
• Section 3.6.1, “Managing Connections to the Remote Server”
• Section 3.6.2, “Detecting Errors During Normal Processing”
• Section 3.6.3, “Managing Threaded Operations”
3.6.1. Managing Connections to the Remote Server
Each database link maintains a pool of connections to a remote server. The connections to
optimize resources can be configured for the directory.
3.6.1.1. Managing Connections to the Remote Server Using the Console
1. In the Directory Server Console, select the Configuration tab.
2. Expand the Data folder in the left pane and locate the database link to change. Click the
database link, then click the Limits and Controls tab in the right navigation pane.
3. In the Connection Management section, make changes to any of the following fields:
• Maximum TCP connection(s). The maximum number of TCP connections that the
database link establishes with the remote server. The default value is 3 connections.
• Bind timeout. Amount of time, in seconds, before the database link's bind attempt times
out. The default value is 15 seconds.
• Maximum binds per connection. Maximum number of outstanding bind operations per TCP
connection. The default value is 10 outstanding bind operations per connection.
• Time out before abandon (sec). Number of seconds before the server checks to see if a
timed-out connection should be abandoned. The default value is 1 seconds.
Evaluation
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