The maximum size of the debug log file for the collector service can be adjusted with the debuglevel_max_size registry value. This DWORD value specifies the maximum size of each debug log file in megabytes, consequently the total disk space used will be twice the size of the registry value.
The default size for each debug log file is 150Mb. To adjust the maximum size of the debug log file, do the following:
For example, if debuglevel_max_size is set to 300, the debug log file(s) will consume a maximum disk space of 600Mb.