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I want to put all my config files in a /config subfolder of my application directory. Log4j is expecting the log4j.properties file in the root folder of my application. Is there a way to tell log4j where to look for the properties file?
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The file is named log4j. properties and is located in the $DGRAPH_HOME/dgraph-hdfs-agent/lib directory. The file defines the ROLLINGFILE appenders for the root logger and also sets the log level for the file. The level of the root logger is defined as INFO and attaches the ROLLINGFILE appender to it.
Use LogManager. resetConfiguration(); to clear the current config and configure it again. Another approach is to build a new appender and replace the old one with it (most appenders don't support changing their config). This way, all the loggers (and their levels, etc) stay intact.
System. setProperty("{my. log", "C:/logfile. log");
Yes, define log4j.configuration property
java -Dlog4j.configuration=file:/path/to/log4j.properties myApp Note, that property value must be a URL.
For more read section 'Default Initialization Procedure' in Log4j manual.
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