Resource Throttling

Resource Throttling is a mechanism in SharePoint designed to maintain optimal performance and reliability of the SharePoint environment by regulating the consumption of resources. It helps prevent any single user or operation from overloading the system and impacting the overall user experience.

Key Aspects of Resource Throttling

Site Collection Limits: SharePoint may impose limits on the number of items that can be queried in a list or library. By default, the list view threshold is set to 5,000 items.
Query Throttling: To prevent complex queries that may slow down site performance, SharePoint evaluates and manages query loads. Queries that exceed certain limits may be throttled down or result in errors.
User Throttling: If a particular user is generating too many requests too quickly, SharePoint may serve them a throttled response to mitigate the impact on overall performance.
Service Application Throttling: SharePoint may also apply throttling at the service application level, where certain operations that consume excessive resources can be limited.

Configuration of Throttling Settings

Throttling settings can be configured within Central Administration or via PowerShell. Administrators can adjust parameters such as:

List view threshold
Resource allocation for specific user groups
Limits on the number of concurrent requests

Monitoring and Managing Throttling Effects

To effectively handle resource throttling, SharePoint administrators should:

Regularly monitor usage patterns and performance metrics.
Plan site architecture to avoid large lists and libraries when possible.
Educate users about the implications of resource-heavy queries and operations.

Resource throttling is a crucial component in SharePoint that ensures system health by regulating resource consumption. Proper configuration and management of these settings lead to a better performance and user experience across SharePoint applications.