Higher Logging Levels Negatively Affect Performance

All the IBM® Cognos® services send events to the log server, which directs messages to a log file. After an error or problem occurs, you can review the log messages to obtain clues as to what happened.

Log messages also provide the status of components and a high-level view of important events, such as successful completions and fatal errors

In the server administration tool, five levels of logging are available. They range from minimal, which logs the least amount of detail and is intended for less frequent events, to full, which logs more detail and is intended for more frequent events and detailed troubleshooting purposes.

Increasing the logging level may negatively affect the performance of IBM Cognos software. The higher the level of detail logged, the more resources that are used. If performance is slow, you can try lowering the logging levels.

To access the server administration tool, you must have execute permissions for the Administration secured function.

Procedure

  1. On the Configuration tab in IBM Cognos Administration, click Dispatchers and Services.
  2. In the Actions column, click the set properties button for the dispatcher or configuration folder you want.
  3. Click the Settings tab to view all the configuration settings.
  4. In the Value column, click a new value for the following settings, each of which represents a logging category:
    • Audit logging level
    • Audit run-time usage logging level
    • Audit administration logging level
    • Audit other logging level

    Tip: If you want to reset a configuration setting to its default value, select its check box and click Reset to parent value.

  5. Click OK.