Default quota rules

Various transaction quota rules are available in the base system.

  • Fix Script Processor: Allows the fix script processor to run for four hours.
  • Presence: Cancels presence requests quickly when the system is busy.
  • REST Import Set API request timeout: Prevents inbound REST Import Set API transactions from running for longer than 60 seconds.
  • REST Table API request timeout: Prevents inbound REST Table API transactions from running for longer than 60 seconds.
  • AMB Transactions: Cancels AMB transactions lasting longer than the specified maximum duration. Applies to all AMB transaction types: message send and message receive.
  • Reference Completer: Stops the reference completer transaction after five seconds.
  • REST Aggregate API request timeout: Prevents inbound REST Aggregate API transactions from running for longer than 60 seconds.
  • Homepage Widgets: Prevents all homepage widgets from running longer than 30 seconds.
  • REST Attachment API request timeout: Prevents inbound REST Import Set API transactions from running for longer than 60 seconds.
  • UA Count Persistor Quota: Prevents UA count persistor scheduled jobs from running for more than one hour.
  • UI Transactions: Cancels UI transactions that are two seconds away from the 5-minute server disconnect. ServiceNow datacenter load balancers display an internal server error (HTTP Error 500) to users after five minutes. This quota rule returns a transaction canceled page instead of an error. This rule includes an exception to prevent the cancellation of background scripts.

Normal transaction activities

Before setting transaction quotas, navigate to User Administration > Active Transactions to review tthe normal transaction activities for your instance. You can view and terminate long-running transactions if necessary. Over time, you can determine the normal transaction load for your instance and set your quotas to match these norms.