Abstract: Examples provide a permission service for controlling service requests to web services. A permission controller monitors the number of active requests to a selected web service. When a permission request associated with the selected web service is received from a client, the permission service compares the current number of active requests to a per-service maximum threshold number of active requests. The permission controller maintains a per-threshold number of active requests customized for each web service. If the current request would exceed the threshold number if granted, the permission controller sends a denial with a random wait time to the client. The client resends the permission request on expiration of the wait time. The permission controller generates a different random wait time for each denial response. If the number of active requests is less than or equal to the threshold, the permission service grants permission to the client.

Abstract: Examples provide a permission service for controlling service requests to web services. A permission controller monitors the number of active requests to a selected web service. When a permission request associated with the selected web service is received from a client, the permission service compares the current number of active requests to a per-service maximum threshold number of active requests. The permission controller maintains a per-threshold number of active requests customized for each web service. If the current request would exceed the threshold number if granted, the permission controller sends a denial with a random wait time to the client. The client resends the permission request on expiration of the wait time. The permission controller generates a different random wait time for each denial response. If the number of active requests is less than or equal to the threshold, the permission service grants permission to the client.