The Manager module records individual logs to: logs/flashphoner_manager.log. Logs are rotated on the hourly base:

flashphoner_manager.log
flashphoner_manager.log.2014-10-27-09
flashphoner_manager.log.2014-10-27-12
flashphoner_manager.log.2014-11-07-19

A log contains general information about WCS Manager operation

Logging settings are stored in a separate log4j.properties file. See WCS Manager settings.

This is a standard log4j config. It looks very straightforward and provides recording of logs to the flashphoner_manager.log file specified in 'log4j.appender.File' with hourly rotation 'yyyy-MM-dd-HH' and the output message format of '%d{HH:mm:ss,SSS} %-5p %20.20c{1}' - %t %m%n'. For detailed information about the log4j.properties file format and additional settings, please refer to log4j documentation.