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Procédure : synchroniser un abonnement par extraction de données (pull) (Programmation RMO)

Vous pouvez synchroniser des abonnements par envoi de données (pull) au moyen d'objets RMO (Replication Management Objects) et d'un accès par code managé aux fonctionnalités de l'Agent de réplication. Les classes que vous utilisez pour synchroniser un abonnement par extraction de données (pull) sont fonction du type de publication à laquelle l'abonnement appartient.

Notes

Si vous voulez démarrer une synchronisation qui s'exécute de façon autonome sans affecter votre application, démarrez l'agent en mode asynchrone. Toutefois, si vous voulez analyser le résultat de la synchronisation et recevoir des rappels à partir de l'agent au cours du processus de synchronisation (par exemple, pour afficher une barre de progression), démarrez l'agent en mode synchrone. Pour des Abonnés Microsoft SQL Server 2005 Express Edition, vous devez démarrer l'agent en mode synchrone.

Pour synchroniser un abonnement par extraction de données (pull) ou une publication transactionnelle

  1. Créez une connexion à l'Abonné au moyen de la classe ServerConnection.

  2. Créez une instance de la classe TransPullSubscription et définissez les propriétés suivantes :

  3. Appelez la méthode LoadProperties pour obtenir les propriétés d'abonnement restantes. Si cette méthode retourne false, vérifiez que l'abonnement existe.

  4. Démarrez l'Agent de distribution sur l'Abonné de l'une des façons suivantes :

    • Appelez la méthode SynchronizeWithJob sur l'instance de TransPullSubscription obtenue à l'étape 2. Cette méthode démarre l'Agent de distribution en mode asynchrone et votre application récupère immédiatement le contrôle pendant l'exécution du travail de l'agent. Vous ne pouvez pas appeler cette méthode pour les Abonnés SQL Server 2005 Express Edition ou si l'abonnement a été créé avec la valeur false pour CreateSyncAgentByDefault (la valeur par défaut).

    • Obtenez une instance de la classe TransSynchronizationAgent à partir de la propriété SynchronizationAgent et appelez la méthode Synchronize. Cette méthode démarre l'agent en mode synchrone, et le travail d'agent en cours d'exécution conserve le contrôle. Au cours de l'exécution synchrone, vous pouvez gérer l'événement Status pendant que l'agent est en cours d'exécution.

      Notes

      Si vous avez spécifié la valeur false pour CreateSyncAgentByDefault (la valeur par défaut) lorsque vous avez créé l'abonnement par envoi de données (pull), vous devez également spécifier Distributor, DistributorSecurityMode et, facultativement, DistributorLogin et DistributorPassword parce que les métadonnées liées au travail d'agent pour l'abonnement ne sont pas disponibles dans MSsubscription_properties.

Pour synchroniser un abonnement par extraction de données (pull) vers une publication de fusion

  1. Créez une connexion à l'Abonné au moyen de la classe ServerConnection.

  2. Créez une instance de la classe MergePullSubscription et définissez les propriétés suivantes :

  3. Appelez la méthode LoadProperties pour obtenir les propriétés d'abonnement restantes. Si cette méthode retourne false, vérifiez que l'abonnement existe.

  4. Démarrez l'Agent de fusion sur l'Abonné de l'une des façons suivantes :

Exemple

Cet exemple synchronise un abonnement par envoi de données (pull) vers une publication transactionnelle, où l'agent est démarré en mode asynchrone au moyen du travail d'agent.

         // Define server, publication, and database names.
            String subscriberName = subscriberInstance;
            String publisherName = publisherInstance;
            String publicationName = "AdvWorksProductTran";
            String publicationDbName = "AdventureWorks2008R2";
            String subscriptionDbName = "AdventureWorks2008R2Replica";

            // Create a connection to the Subscriber.
            ServerConnection conn = new ServerConnection(subscriberName);

            TransPullSubscription subscription;

            try
            {
                // Connect to the Subscriber.
                conn.Connect();

                // Define subscription properties.
                subscription = new TransPullSubscription();
                subscription.ConnectionContext = conn;
                subscription.DatabaseName = subscriptionDbName;
                subscription.PublisherName = publisherName;
                subscription.PublicationDBName = publicationDbName;
                subscription.PublicationName = publicationName;

                // If the pull subscription and the job exists, start the agent job.
                if (subscription.LoadProperties() && subscription.AgentJobId != null)
                {
                    subscription.SynchronizeWithJob();
                }
                else
                {
                    // Do something here if the subscription does not exist.
                    throw new ApplicationException(String.Format(
                        "A subscription to '{0}' does not exists on {1}",
                        publicationName, subscriberName));
                }
            }
            catch (Exception ex)
            {
                // Do appropriate error handling here.
                throw new ApplicationException("The subscription could not be synchronized.", ex);
            }
            finally
            {
                conn.Disconnect();
            }
' Define server, publication, and database names.
Dim subscriberName As String = subscriberInstance
Dim publisherName As String = publisherInstance
Dim publicationName As String = "AdvWorksProductTran"
Dim publicationDbName As String = "AdventureWorks2008R2"
Dim subscriptionDbName As String = "AdventureWorks2008R2Replica"

' Create a connection to the Subscriber.
Dim conn As ServerConnection = New ServerConnection(subscriberName)

Dim subscription As TransPullSubscription

Try
    ' Connect to the Subscriber.
    conn.Connect()

    ' Define subscription properties.
    subscription = New TransPullSubscription()
    subscription.ConnectionContext = conn
    subscription.DatabaseName = subscriptionDbName
    subscription.PublisherName = publisherName
    subscription.PublicationDBName = publicationDbName
    subscription.PublicationName = publicationName

    ' If the pull subscription and the job exists, start the agent job.
    If subscription.LoadProperties() And Not subscription.AgentJobId Is Nothing Then
        subscription.SynchronizeWithJob()
    Else
        ' Do something here if the subscription does not exist.
        Throw New ApplicationException(String.Format( _
         "A subscription to '{0}' does not exists on {1}", _
         publicationName, subscriberName))
    End If
Catch ex As Exception
    ' Do appropriate error handling here.
    Throw New ApplicationException("The subscription could not be synchronized.", ex)
Finally
    conn.Disconnect()
End Try

Cet exemple synchronise un abonnement par envoi de données (pull) vers une publication transactionnelle, où l'agent est démarré en mode synchrone.

            // Define the server, publication, and database names.
            string subscriberName = subscriberInstance;
            string publisherName = publisherInstance;
            string publicationName = "AdvWorksProductTran";
            string subscriptionDbName = "AdventureWorks2008R2Replica";
            string publicationDbName = "AdventureWorks2008R2";

            // Create a connection to the Subscriber.
            ServerConnection conn = new ServerConnection(subscriberName);

            TransPullSubscription subscription;

            try
            {
                // Connect to the Subscriber.
                conn.Connect();

                // Define the pull subscription.
                subscription = new TransPullSubscription();
                subscription.ConnectionContext = conn;
                subscription.DatabaseName = subscriptionDbName;
                subscription.PublisherName = publisherName;
                subscription.PublicationDBName = publicationDbName;
                subscription.PublicationName = publicationName;

                // If the pull subscription exists, then start the synchronization.
                if (subscription.LoadProperties())
                {
                    // Check that we have enough metadata to start the agent.
                    if (subscription.PublisherSecurity != null)
                    {
                        // Synchronously start the Distribution Agent for the subscription.
                        subscription.SynchronizationAgent.Synchronize();
                    }
                    else
                    {
                        throw new ApplicationException("There is insufficent metadata to " +
                            "synchronize the subscription. Recreate the subscription with " +
                            "the agent job or supply the required agent properties at run time.");
                    }
                }
                else
                {
                    // Do something here if the pull subscription does not exist.
                    throw new ApplicationException(String.Format(
                        "A subscription to '{0}' does not exist on {1}",
                        publicationName, subscriberName));
                }
            }
            catch (Exception ex)
            {
                // Implement appropriate error handling here.
                throw new ApplicationException("The subscription could not be " +
                    "synchronized. Verify that the subscription has " +
                    "been defined correctly.", ex);
            }
            finally
            {
                conn.Disconnect();
            }
' Define the server, publication, and database names.
Dim subscriberName As String = subscriberInstance
Dim publisherName As String = publisherInstance
Dim publicationName As String = "AdvWorksProductTran"
Dim subscriptionDbName As String = "AdventureWorks2008R2Replica"
Dim publicationDbName As String = "AdventureWorks2008R2"

' Create a connection to the Subscriber.
Dim conn As ServerConnection = New ServerConnection(subscriberName)

Dim subscription As TransPullSubscription

Try
    ' Connect to the Subscriber.
    conn.Connect()

    ' Define the pull subscription.
    subscription = New TransPullSubscription()
    subscription.ConnectionContext = conn
    subscription.DatabaseName = subscriptionDbName
    subscription.PublisherName = publisherName
    subscription.PublicationDBName = publicationDbName
    subscription.PublicationName = publicationName

    ' If the pull subscription exists, then start the synchronization.
    If subscription.LoadProperties() Then
        ' Check that we have enough metadata to start the agent.
        If Not subscription.PublisherSecurity Is Nothing Then

            ' Write agent output to a log file.
            subscription.SynchronizationAgent.Output = "distagent.log"
            subscription.SynchronizationAgent.OutputVerboseLevel = 2

            ' Synchronously start the Distribution Agent for the subscription.
            subscription.SynchronizationAgent.Synchronize()
        Else
            Throw New ApplicationException("There is insufficent metadata to " + _
             "synchronize the subscription. Recreate the subscription with " + _
             "the agent job or supply the required agent properties at run time.")
        End If
    Else
        ' Do something here if the pull subscription does not exist.
        Throw New ApplicationException(String.Format( _
         "A subscription to '{0}' does not exist on {1}", _
         publicationName, subscriberName))
    End If
Catch ex As Exception
    ' Implement appropriate error handling here.
    Throw New ApplicationException("The subscription could not be " + _
     "synchronized. Verify that the subscription has " + _
     "been defined correctly.", ex)
Finally
    conn.Disconnect()
End Try

Cet exemple synchronise un abonnement par envoi de données (pull) vers une publication de fusion, où l'agent est démarré en mode asynchrone au moyen du travail d'agent.

           // Define server, publication, and database names.
            String subscriberName = subscriberInstance;
            String publisherName = publisherInstance;
            String publicationName = "AdvWorksSalesOrdersMerge";
            String publicationDbName = "AdventureWorks2008R2";
            String subscriptionDbName = "AdventureWorks2008R2Replica";

            // Create a connection to the Subscriber.
            ServerConnection conn = new ServerConnection(subscriberName);

            MergePullSubscription subscription;

            try
            {
                // Connect to the Subscriber.
                conn.Connect();

                // Define subscription properties.
                subscription = new MergePullSubscription();
                subscription.ConnectionContext = conn;
                subscription.DatabaseName = subscriptionDbName;
                subscription.PublisherName = publisherName;
                subscription.PublicationDBName = publicationDbName;
                subscription.PublicationName = publicationName;

                // If the pull subscription and the job exists, start the agent job.
                if (subscription.LoadProperties() && subscription.AgentJobId != null)
                {
                    subscription.SynchronizeWithJob();
                }
                else
                {
                    // Do something here if the subscription does not exist.
                    throw new ApplicationException(String.Format(
                        "A subscription to '{0}' does not exists on {1}",
                        publicationName, subscriberName));
                }
            }
            catch (Exception ex)
            {
                // Do appropriate error handling here.
                throw new ApplicationException("The subscription could not be synchronized.", ex);
            }
            finally
            {
                conn.Disconnect();
            }
' Define server, publication, and database names.
Dim subscriberName As String = subscriberInstance
Dim publisherName As String = publisherInstance
Dim publicationName As String = "AdvWorksSalesOrdersMerge"
Dim publicationDbName As String = "AdventureWorks2008R2"
Dim subscriptionDbName As String = "AdventureWorks2008R2Replica"

' Create a connection to the Subscriber.
Dim conn As ServerConnection = New ServerConnection(subscriberName)

Dim subscription As MergePullSubscription

Try
    ' Connect to the Subscriber.
    conn.Connect()

    ' Define subscription properties.
    subscription = New MergePullSubscription()
    subscription.ConnectionContext = conn
    subscription.DatabaseName = subscriptionDbName
    subscription.PublisherName = publisherName
    subscription.PublicationDBName = publicationDbName
    subscription.PublicationName = publicationName

    ' If the pull subscription and the job exists, start the agent job.
    If subscription.LoadProperties() And Not subscription.AgentJobId Is Nothing Then
        subscription.SynchronizeWithJob()
    Else
        ' Do something here if the subscription does not exist.
        Throw New ApplicationException(String.Format( _
         "A subscription to '{0}' does not exists on {1}", _
         publicationName, subscriberName))
    End If
Catch ex As Exception
    ' Do appropriate error handling here.
    Throw New ApplicationException("The subscription could not be synchronized.", ex)
Finally
    conn.Disconnect()
End Try

Cet exemple synchronise un abonnement par envoi de données (pull) vers une publication de fusion, où l'agent est démarré en mode synchrone.

            // Define the server, publication, and database names.
            string subscriberName = subscriberInstance;
            string publisherName = publisherInstance;
            string publicationName = "AdvWorksSalesOrdersMerge";
            string subscriptionDbName = "AdventureWorks2008R2Replica";
            string publicationDbName = "AdventureWorks2008R2";

            // Create a connection to the Subscriber.
            ServerConnection conn = new ServerConnection(subscriberName);

            MergePullSubscription subscription;

            try
            {
                // Connect to the Subscriber.
                conn.Connect();

                // Define the pull subscription.
                subscription = new MergePullSubscription();
                subscription.ConnectionContext = conn;
                subscription.DatabaseName = subscriptionDbName;
                subscription.PublisherName = publisherName;
                subscription.PublicationDBName = publicationDbName;
                subscription.PublicationName = publicationName;

                // If the pull subscription exists, then start the synchronization.
                if (subscription.LoadProperties())
                {
                    // Check that we have enough metadata to start the agent.
                    if (subscription.PublisherSecurity != null || subscription.DistributorSecurity != null)
                    {
                        // Synchronously start the Merge Agent for the subscription.
                        subscription.SynchronizationAgent.Synchronize();
                    }
                    else
                    {
                        throw new ApplicationException("There is insufficent metadata to " +
                            "synchronize the subscription. Recreate the subscription with " +
                            "the agent job or supply the required agent properties at run time.");
                    }
                }
                else
                {
                    // Do something here if the pull subscription does not exist.
                    throw new ApplicationException(String.Format(
                        "A subscription to '{0}' does not exist on {1}",
                        publicationName, subscriberName));
                }
            }
            catch (Exception ex)
            {
                // Implement appropriate error handling here.
                throw new ApplicationException("The subscription could not be " +
                    "synchronized. Verify that the subscription has " +
                    "been defined correctly.", ex);
            }
            finally
            {
                conn.Disconnect();
            }
' Define the server, publication, and database names.
Dim subscriberName As String = subscriberInstance
Dim publisherName As String = publisherInstance
Dim publicationName As String = "AdvWorksSalesOrdersMerge"
Dim subscriptionDbName As String = "AdventureWorks2008R2Replica"
Dim publicationDbName As String = "AdventureWorks2008R2"

' Create a connection to the Subscriber.
Dim conn As ServerConnection = New ServerConnection(subscriberName)

Dim subscription As MergePullSubscription

Try
    ' Connect to the Subscriber.
    conn.Connect()

    ' Define the pull subscription.
    subscription = New MergePullSubscription()
    subscription.ConnectionContext = conn
    subscription.DatabaseName = subscriptionDbName
    subscription.PublisherName = publisherName
    subscription.PublicationDBName = publicationDbName
    subscription.PublicationName = publicationName

    ' If the pull subscription exists, then start the synchronization.
    If subscription.LoadProperties() Then
        ' Check that we have enough metadata to start the agent.
        If Not subscription.PublisherSecurity Is Nothing Or subscription.DistributorSecurity Is Nothing Then

            ' Output agent messages to the console. 
            subscription.SynchronizationAgent.OutputVerboseLevel = 1
            subscription.SynchronizationAgent.Output = ""

            ' Synchronously start the Merge Agent for the subscription.
            subscription.SynchronizationAgent.Synchronize()
        Else
            Throw New ApplicationException("There is insufficent metadata to " + _
             "synchronize the subscription. Recreate the subscription with " + _
             "the agent job or supply the required agent properties at run time.")
        End If
    Else
        ' Do something here if the pull subscription does not exist.
        Throw New ApplicationException(String.Format( _
         "A subscription to '{0}' does not exist on {1}", _
         publicationName, subscriberName))
    End If
Catch ex As Exception
    ' Implement appropriate error handling here.
    Throw New ApplicationException("The subscription could not be " + _
     "synchronized. Verify that the subscription has " + _
     "been defined correctly.", ex)
Finally
    conn.Disconnect()
End Try

Cet exemple synchronise un abonnement par extraction de données (pull) vers une publication de fusion au moyen de la synchronisation Web. Dans la mesure où l'abonnement a été créé sans le travail d'agent et les métadonnées d'abonnement associées, l'agent doit être démarré en mode synchrone et des informations d'abonnement supplémentaires sont fournies.

          // Define the server, publication, and database names.
            string subscriberName = subscriberInstance;
            string publisherName = publisherInstance;
            string distributorName = distributorInstance;
            string publicationName = "AdvWorksSalesOrdersMerge";
            string subscriptionDbName = "AdventureWorks2008R2Replica";
            string publicationDbName = "AdventureWorks2008R2";
            string hostname = @"adventure-works\garrett1";
            string webSyncUrl = "https://" + publisherInstance + "/SalesOrders/replisapi.dll";

            // Create a connection to the Subscriber.
            ServerConnection conn = new ServerConnection(subscriberName);

            MergePullSubscription subscription;
            MergeSynchronizationAgent agent;

            try
            {
                // Connect to the Subscriber.
                conn.Connect();

                // Define the pull subscription.
                subscription = new MergePullSubscription();
                subscription.ConnectionContext = conn;
                subscription.DatabaseName = subscriptionDbName;
                subscription.PublisherName = publisherName;
                subscription.PublicationDBName = publicationDbName;
                subscription.PublicationName = publicationName;

                // If the pull subscription exists, then start the synchronization.
                if (subscription.LoadProperties())
                {
                    // Get the agent for the subscription.
                    agent = subscription.SynchronizationAgent;

                    // Check that we have enough metadata to start the agent.
                    if (agent.PublisherSecurityMode == null)
                    {
                        // Set the required properties that could not be returned
                        // from the MSsubscription_properties table. 
                        agent.PublisherSecurityMode = SecurityMode.Integrated;
                        agent.DistributorSecurityMode = SecurityMode.Integrated;
                        agent.Distributor = publisherName;
                        agent.HostName = hostname;

                        // Set optional Web synchronization properties.
                        agent.UseWebSynchronization = true;
                        agent.InternetUrl = webSyncUrl;
                        agent.InternetSecurityMode = SecurityMode.Standard;
                        agent.InternetLogin = winLogin;
                        agent.InternetPassword = winPassword;
                    }
                    // Enable agent output to the console.
                    agent.OutputVerboseLevel = 1;
                    agent.Output = "";

                    // Synchronously start the Merge Agent for the subscription.
                    agent.Synchronize();
                }
                else
                {
                    // Do something here if the pull subscription does not exist.
                    throw new ApplicationException(String.Format(
                        "A subscription to '{0}' does not exist on {1}",
                        publicationName, subscriberName));
                }
            }
            catch (Exception ex)
            {
                // Implement appropriate error handling here.
                throw new ApplicationException("The subscription could not be " +
                    "synchronized. Verify that the subscription has " +
                    "been defined correctly.", ex);
            }
            finally
            {
                conn.Disconnect();
            }
' Define the server, publication, and database names.
Dim subscriberName As String = subscriberInstance
Dim publisherName As String = publisherInstance
Dim publicationName As String = "AdvWorksSalesOrdersMerge"
Dim subscriptionDbName As String = "AdventureWorks2008R2Replica"
Dim publicationDbName As String = "AdventureWorks2008R2"
Dim hostname As String = "adventure-works\garrett1"
Dim webSyncUrl As String = "https://" + publisherInstance + "/SalesOrders/replisapi.dll"

' Create a connection to the Subscriber.
Dim conn As ServerConnection = New ServerConnection(subscriberName)

Dim subscription As MergePullSubscription
Dim agent As MergeSynchronizationAgent

Try
    ' Connect to the Subscriber.
    conn.Connect()

    ' Define the pull subscription.
    subscription = New MergePullSubscription()
    subscription.ConnectionContext = conn
    subscription.DatabaseName = subscriptionDbName
    subscription.PublisherName = publisherName
    subscription.PublicationDBName = publicationDbName
    subscription.PublicationName = publicationName

    ' If the pull subscription exists, then start the synchronization.
    If subscription.LoadProperties() Then
        ' Get the agent for the subscription.
        agent = subscription.SynchronizationAgent

        ' Check that we have enough metadata to start the agent.
        If agent.PublisherSecurityMode = Nothing Then
            ' Set the required properties that could not be returned
            ' from the MSsubscription_properties table. 
            agent.PublisherSecurityMode = SecurityMode.Integrated
            agent.Distributor = publisherInstance
            agent.DistributorSecurityMode = SecurityMode.Integrated
            agent.HostName = hostname

            ' Set optional Web synchronization properties.
            agent.UseWebSynchronization = True
            agent.InternetUrl = webSyncUrl
            agent.InternetSecurityMode = SecurityMode.Standard
            agent.InternetLogin = winLogin
            agent.InternetPassword = winPassword
        End If

        ' Enable agent logging to the console.
        agent.OutputVerboseLevel = 1
        agent.Output = ""

        ' Synchronously start the Merge Agent for the subscription.
        agent.Synchronize()
    Else
        ' Do something here if the pull subscription does not exist.
        Throw New ApplicationException(String.Format( _
         "A subscription to '{0}' does not exist on {1}", _
         publicationName, subscriberName))
    End If
Catch ex As Exception
    ' Implement appropriate error handling here.
    Throw New ApplicationException("The subscription could not be " + _
     "synchronized. Verify that the subscription has " + _
     "been defined correctly.", ex)
Finally
    conn.Disconnect()
End Try