Application.SubscriptionThrottle Property

Gets or sets the maximum number of scheduled subscriptions that can be processed during a single generator quantum.

命名空間: Microsoft.SqlServer.Management.Nmo
組件: Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)

語法

'宣告
Public Property SubscriptionThrottle As Integer
public int SubscriptionThrottle { get; set; }
public:
property int SubscriptionThrottle {
    int get ();
    void set (int value);
}
/** @property */
public int get_SubscriptionThrottle ()

/** @property */
public void set_SubscriptionThrottle (int value)
public function get SubscriptionThrottle () : int

public function set SubscriptionThrottle (value : int)

屬性值

An Int32 value that specifies the maximum number of scheduled subscriptions that can be processed during a single generator quantum.

備註

更新的文字:2005 年 12 月 5 日

Use this property to help guard against an unexpectedly large number of subscriptions entered into the application.

Subscription throttles apply to scheduled rules only, not event-driven rules.

During each quantum, the generator gets the current set of scheduled subscriptions for each subscription class and counts the subscriptions. If the subscription throttle value is exceeded, the generator abandons the quantum.

If you use the Application(Instance,String) constructor, the default value is 1000. If you use the default constructor, you must set this property.

If you set the subscription throttle value to 0, there is no limit to the number of scheduled subscriptions processed from a subscription class during a quantum.

範例

The following examples show how to set all application execution settings, including the subscription throttle:

// Define application execution settings
myApplication.QuantumDuration = new TimeSpan(0, 0, 15);
myApplication.PerformanceQueryInterval = new TimeSpan(0, 0, 5);
myApplication.SubscriptionQuantumLimit = 1;
myApplication.ChronicleQuantumLimit = 1;
myApplication.VacuumRetentionAge = new TimeSpan(0, 0, 1);
myApplication.LogBeforeDeliveryAttempts = false;
myApplication.LogNotificationText = false;
myApplication.LogStatusInfo = false;
myApplication.EventThrottle = 500;
myApplication.NotificationThrottle = 500;
myApplication.SubscriptionThrottle = 500;
myApplication.ProcessEventsInOrder = false;
' Define application execution settings
myApplication.QuantumDuration = New TimeSpan(0, 0, 15)
myApplication.PerformanceQueryInterval = New TimeSpan(0, 0, 5)
myApplication.SubscriptionQuantumLimit = 1
myApplication.ChronicleQuantumLimit = 1
myApplication.VacuumRetentionAge = New TimeSpan(0, 0, 1)
myApplication.LogBeforeDeliveryAttempts = False
myApplication.LogNotificationText = False
myApplication.LogStatusInfo = False
myApplication.EventThrottle = 500
myApplication.NotificationThrottle = 500
myApplication.SubscriptionThrottle = 500
myApplication.ProcessEventsInOrder = False

執行緒安全性

Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

平台

開發平台

如需受支援的平台清單,請參閱<安裝 SQL Server 2005 的硬體和軟體需求>。

目標平台

如需受支援的平台清單,請參閱<安裝 SQL Server 2005 的硬體和軟體需求>。

請參閱

參考

Application Class
Application Members
Microsoft.SqlServer.Management.Nmo Namespace

其他資源

指定事件、訂閱與通知的流速
SubscriptionThrottle Element (ADF)