Skip Headers
Oracle® Traffic Director Administrator's Guide
11g Release 1 (

Part Number E21036-04
Go to Documentation Home
Go to Book List
Book List
Go to Table of Contents
Go to Feedback page
Contact Us

Go to previous page
Go to next page
PDF · Mobi · ePub

15.10 Configuring Access-Log Buffer Settings

The access log contains information about client requests to, and responses from, the server. When the rate at which an Oracle Traffic Director instance receives client requests is very high, which is usually the case in a production environment, the frequency of writing entries to the log file on the disk increases. Writing frequently to the disk is an I/O-intensive activity that can affect the performance of the server.

To reduce the frequency at which Oracle Traffic Director writes entries to the access log on the disk, access log updates can be buffered. Access-log buffering is enabled by default in Oracle Traffic Director.

You can specify limits for the access-log buffer size, the number of access-log buffers per server, and the maximum duration for which entries should be held in the buffer. When the buffer size, the number of buffers, or the age of an entry in the buffer reaches the specified limit, Oracle Traffic Director writes the buffered data to the access log on the disk.

You can configure the access-log buffer settings by using either the administration console or the CLI.

Configuring Access-Log Buffer Settings Using the Administration Console

To configure access-log buffer settings by using the administration console, do the following:

  1. Log in to the administration console, as described in Section 2.3.2, "Accessing the Administration Console."

  2. Click the Configurations button that is situated at the upper left corner of the page.

    A list of the available configurations is displayed.

  3. Select the configuration for which you want to configure access-log buffer preferences.

  4. In the navigation pane, select Logging.

    The Log Preferences page is displayed.

  5. Go to the Advanced Settings section on the page, and scroll down to the Access Log Buffer subsection.

  6. Specify the parameters that you want to change.

    On-screen help and prompts are provided for all of the parameters.

    When you change the value in a field or tab out of a text field that you changed, the Save button near the upper right corner of the page is enabled.

    At any time, you can discard the changes by clicking the Reset button.

  7. After making the required changes, click Save.

    • A message, confirming that the updated configuration was saved, is displayed in the Console Messages pane.

    • In addition, the Deployment Pending message is displayed at the top of the main pane. You can either deploy the updated configuration immediately by clicking Deploy Changes, or you can do so later after making further changes as described in Section 4.3, "Deploying a Configuration."

Configuring Access-Log Buffer Settings Using the CLI

For more information about the CLI commands mentioned in this section, see the Oracle Traffic Director Command-Line Reference or run the commands with the --help option.

For information about viewing logs, configuring log preferences, rotating logs, and so on, see Chapter 12, "Managing Logs."