About the log4j configuration XML files

The primary log configuration is managed in portal-log4j.xml, which is packed inside the portal application file WEB-INF/lib/portal-impl.jar.

To override settings in portal-log4j.xml, you use the file portal-log4j-ext.xml, which is located in the portal application's /WEB-INF/classes/META-INF/ directory.

Both files are in the standard log4j XML configuration format, and allow you to:

Create and modify appenders
Bind appenders to loggers
Adjust the log verbosity of different classes/packages

By default, portal-log4j-ext.xml specifies a log verbosity of INFO for the following packages:

com.endeca
com.endeca.portal.metadata
com.endeca.portal.instrumentation

It does not override any of the default log verbosity settings for non-Information Discovery components.

Note: If you adjust the logging verbosity, it is updated for both log4j and the Java Utility Logging Implementation (JULI). Code using either of these loggers should respect this configuration.