SqlWorkflowInstanceStore.HostLockRenewalPeriod Eigenschaft

public:
 property TimeSpan HostLockRenewalPeriod { TimeSpan get(); void set(TimeSpan value); };

public TimeSpan HostLockRenewalPeriod { get; set; }

member this.HostLockRenewalPeriod : TimeSpan with get, set

Public Property HostLockRenewalPeriod As TimeSpan

Eigenschaftswert

Der Zeitraum.

Beispiele

Das folgende Codebeispiel veranschaulicht die Verwendung von HostLockRenewalPeriod in einem SqlWorkflowInstanceStore.

static void Main(string[] args)
{
    // Create service host.
    WorkflowServiceHost host = new WorkflowServiceHost(new CountingWorkflow(), new Uri(hostBaseAddress));

    // Add service endpoint.
    host.AddServiceEndpoint("ICountingWorkflow", new BasicHttpBinding(), "");

    // Define SqlWorkflowInstanceStoreBehavior:
    //   Set interval to renew instance lock to 5 seconds.
    //   Set interval to check for runnable instances to 2 seconds.
    //   Instance Store does not keep instances after it is completed.
    //   Select exponential back-off algorithm when retrying to load a locked instance.
    //   Instance state information is compressed using the GZip compressing algorithm.
    SqlWorkflowInstanceStoreBehavior instanceStoreBehavior = new SqlWorkflowInstanceStoreBehavior(connectionString);
    instanceStoreBehavior.HostLockRenewalPeriod = new TimeSpan(0, 0, 5);
    instanceStoreBehavior.RunnableInstancesDetectionPeriod = new TimeSpan(0, 0, 2);
    instanceStoreBehavior.InstanceCompletionAction = InstanceCompletionAction.DeleteAll;
    instanceStoreBehavior.InstanceLockedExceptionAction = InstanceLockedExceptionAction.AggressiveRetry;
    instanceStoreBehavior.InstanceEncodingOption = InstanceEncodingOption.GZip;
    host.Description.Behaviors.Add(instanceStoreBehavior);

    // Open service host.
    host.Open();

    // Create a client that sends a message to create an instance of the workflow.
    ICountingWorkflow client = ChannelFactory<ICountingWorkflow>.CreateChannel(new BasicHttpBinding(), new EndpointAddress(hostBaseAddress));
    client.start();

    Console.WriteLine("(Press [Enter] at any time to terminate host)");
    Console.ReadLine();
    host.Close();
}

Hinweise

Wenn der Host die Sperre (d. h. das Lease) in diesem Zeitraum nicht verlängert, entsperrt der Persistenzanbieter die Instanz, und ein anderer Host kann die Instanz sperren. Der Wert ist ein TimeSpan Formular "hh:mm:ss". Der zulässige Mindestwert ist "00:00:01" (1 Sek.). Der Standardwert dieser Eigenschaft ist "00:00:30" (30 Sekunden).