For Studio, the main log file (bdd-studio.log) contains all of the log messages.
By default the bdd-studio.log is stored in the WebLogic domain in the $BDD_DOMAIN/<serverName>/logs directory (where serverName is the name of the Managed Server in which Studio is installed).
bdd-studio.log, the log file in log4j format.bdd-studio-odl.log, the log file in ODL format. Also stored in $BDD_DOMAIN/logsThe main logger does not print messages from the com.endeca.portal.instrumentation classes. Those messages are printed to the metrics log file.