Resolution: The way to control Formflow logs can be done through log parameters in PS layer. To do this, please open file <bwworkflow home>/5.1/tomcat/webapps-<server>-<port>/<web app context>/WEB-INF/classes/TIBCOAppLogging.properties and add the following parameters: MaxLogFileCount=3 MaxLogFileSize=2 Please note that unix of MaxLogFileSize is KB, so in this case, it is 2KB. If you want to change the log file location, just change the value of variable “LogFile”.