This configuration directive specifies whether activity feed requests should trigger the scheduled tasks framework. The default is enabled (1). To disable this trigger, add this to your configuration file:

ActivityFeedsRunTasks 0

This will revert back to the legacy behavior where the scheduled task framework is only triggered through use of run-periodic-tasks.

Note: Regardless of the use of the above methods of scheduled task framework execution, the junk feedback expiration task is always executed when junk feedback is received.