Hello, Supervisor documentation shows that the rotation of supervisor.log file is done automatically by supervisord (see http://supervisord.org/logging.html#activity-log-rotation).
## quote ## The activity log is “rotated” by supervisord based on the combination of the logfile_maxbytes and the logfile_backups parameters in the [supervisord] section of the configuration file. When the activity log reaches logfile_maxbytes bytes, the current log file is moved to a backup file and a new activity log file is created. ## end of quote ## According to http://supervisord.org/configuration.html page, the configuration of `logfile_maxbytes` and `logfile_backups` have been introduced in 3.0. As you used 3.3, it should work. Your report shows the '/etc/supervisor/supervisord.conf changed'. Did you modify these values? Can you still provide the configuration file used? -- Stéphane