To configure the detail level of the messages that are logged in the batch processing log files: Edit the log4j. properties file. Depending on the logging level you wish to set for each log file type, change the value of the following logging level properties to one of the predefined logging levels: Click to see full answer. Besides, what is log level in log4j?Log4j log levels – Log4j2 log levels example. The amount and type of information shown in the system and event logs is controlled by the log4j level setting in configuration file. Remember, each message on the log is prefixed by the level of the message. In Log4j, levels are instance of org. how do you use log levels? Logging Levels and how to use them Debug. This is the most verbose logging level (maximum volume setting). Information. The Information level is typically used to output information that is useful to the running and management of your system. Warning. Warning is often used for handled ‘exceptions’ or other important log events. Error. Fatal. Considering this, how do you change the logger level in Java? To set or change the logger level before the environment is opened, do one of the following: Set logging levels using the standard Java LogManager properties file. For example, you can set: com.sleepycat.je.level=INFO. Set logging levels programmatically using the java. util. What are the different levels of logging? log4j – Logging Levels Level Description DEBUG Designates fine-grained informational events that are most useful to debug an application. INFO Designates informational messages that highlight the progress of the application at coarse-grained level. WARN Designates potentially harmful situations.