The default location for the log files (for example, fp.date.log and catalina.out) is:
Tomcat installation directory/logs
Log file locations for WebSphere Application Server
The default location for the log files if you are using WebSphere Application Server is:
WAS installation directory\profiles\servername\logs\
To make it to troubleshoot your installation, keep the log files in the default location. However, if you need to change their location, complete the following steps:
1 Open the fp-logging.properties file in the following directory:
WAS installation directory\profiles\servername\ installedApps\cellname\fp_war.ear\fp.war\WEB-INF\classes
2 Modify the following entry to specify a different location for logs:
java.util.logging.FileHandler.pattern= WAS installation directory\profiles\servername\logs\fp.log