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any current work when the server begins to throttle requests. Any new HTTP GET and
Search Robot requests will generate a 503 error message and will be logged in the event
viewer. While the server is in a throttling period, no new timer jobs will be started.
Throttling can be configured per Web application and is enabled through the Central
Administration user interface or through a Windows PowerShell™ command. After
throttling is enabled, the Windows PowerShell commands
Get-SPWebApplicationHttpThrottlingMonitor and
Set-SPWebApplicationHttpThrottlingMonitor are used to view and adjust the
throttling thresholds. The image below is an example of the
Get-SPWebApplicationHttpThrottlingMonitor Windows PowerShell command.
Figure 16: Windows PowerShell Commands for Monitoring
Controlling Large List Activities
SharePoint Server 2010 has the ability to support up to 50 million items within a
SharePoint list; however, as lists grow in size they can become increasingly slow to
return queries that include many results. To provide users with consistent server
response, SharePoint Server 2010 provides several different settings that will restrict the
queries that can be run against a large list. These settings can be configured for each
Web application and will control the following:
• The number of results that can be returned in a user query. The default value is
5,000 items.