Logging in Java Technology 

Logging means the writing and storing of logs for particular events to store and analyze those events. The log usually contains information about the data source, time stamp, a message text, and an urgency level that specifies the importance of the message. Since the logs contain all of the important information about an event that an administrator needs to know to check the status of a system, the database, and the applications, the logs are very important for monitoring the system landscape.

Logging consists of two components:

·        The implementation of logging during development. The implementation of logging is described in the Development Manual under How to Write Useful Log and Trace Messages.

·        The configuration of the logging (during development and at runtime): the configuration is defined in the file log-configuration.xml, which is deployed together with the resource. For information about configuring logging, see Log Configuration.

The logging configuration can be changed at runtime. Adjusting the logging configuration is one of the administrator’s tasks. For more information, see Log Configuration.

Reference

For a basic introduction to the functions of logging, see SAP Logging API.