Chapter 8. Logging Subsystem Tuning

You can further improve upon JBoss EAP logging subsystem performance in production environments by disabling logging to console, configuring appropriate logging levels, and specifying the best location to store log files.

For more information on configuring the logging subsystem, see the logging chapter in the JBoss EAP Configuration Guide.

8.1. Disabling Logging to the Console

Disabling console logging can improve JBoss EAP performance. Although outputting logs to the console can be useful in development and testing environments, for production environments it is not necessary in most cases. The JBoss EAP root logger includes a console log handler for all default standalone server profiles except standalone-full-ha. The default managed domain profiles do not include a console handler.

To remove the default console handler from the root logger, use the following management CLI command.

/subsystem=logging/root-logger=ROOT:remove-handler(name=CONSOLE)

8.2. Configuring Logging Levels

For ideal performance, you must configure the logging levels for your production environment appropriately. For example, although INFO or DEBUG levels might be appropriate for development or testing environments, in most cases you should set your production environment logging level to something higher, such as WARN or ERROR.

For details on setting log levels for different logging handlers, see Configuring Log Handlers in the JBoss EAP Configuration Guide.

8.3. Configuring the Location of Log Files

You should consider the storage location of log files as a potential performance issue. If you save logs to a file system or disk configuration that has poor I/O throughput, it has the potential to affect the whole platform’s performance.

To prevent logging from impacting JBoss EAP performance, it is recommended that you set log locations to high-performance dedicated disks that have a lot of space.

For details on configuring log file locations for different logging handlers, see Configuring Log Handlers in the JBoss EAP Configuration Guide.