Sharepoint 2013 : Using BCS (part 8) - Working with external content types - Managing permissions on external content types

Using external system throttling

Each BDC application service can have a number of throttle configurations, and each configuration can be tuned by throttle type and/or scope. The throttle types are:

Throttle scopes refer to the external system connection type, which can be a specific connection type, such as Database or OData, or a Global scope that includes all connector types, except for custom connectors. When a BDC service application is first created, all combinations of throttle types and scopes do not exist. The throttling rules that exist are:

You can retrieve and modify the throttling rules by using the BDC Windows PowerShell cmdlets. For example, obtain the BDC service application proxy in the variable BDCName and then display the throttling rules for a BDC service application:

$bdcproxy = Get-SPServiceApplicationProxy | where {$_.displayname –eq $BDCname};
Get-SPBusinessDataCatalogThrottleConfig –ServiceApplication $bdcproxy ‘
   –Scope Global –ThrottleType Connections;
Scope        : Global
ThrottleType : Connections
Enforced     : True
Default      : 200
Max          : 500

The output displays five properties. The three properties that can be modified are:

To disable a throttling rule, use the following command:

Get-SPBusinessDataCatalogThrottleConfig –ServiceApplication $bdcproxy '
   –Scope Global –ThrottleType Connections | Set-SPBusinessDataCatalogThrottle Config '
   -Enforced:$False;

To modify a throttle rule, use the following command:

$dbrule = Get-SPBusinessDataCatalogThrottleConfig –ServiceApplication $bdcproxy '
   –Scope Database –ThrottleType Items;
$dbrule | Set-SPBusinessDataCatalogThrottleConfig –Maximum 2000000 –Default 5000;