The loggingLevels property controls the amount of detail written to the log file for the Optimize command-line tool, based on severity. Available levels are LOW, MEDIUM, HIGH and ALL, with LOW providing the least detail (that is, only the most severe messages are written). The ALL level includes trace messages and is intended primarily for diagnostic purposes.

Set this value to the number (integer) of milliseconds between two successive polls to the web application to get progress information. This value is not used if you do not set getProgressCmd.