In dependence of the setting of log-level (error, warn, info, debug) in configuration file factory.ini the size of main logfile scheduler.log will growth more or less fast. To limit the size of the scheduler.log file it is recommended that you run the JobSchedulerRotateLog housekeeping job JobSchedulerRotateLog continuously.
It rotates scheduler.log. That means that the current content will be saved in a zipped file (marked with a timestamp) and the afterwards the content of scheduler.log will be deleted.