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Como desabilitar a publicação e a distribuição (Programação RMO)

Você pode desabilitar a publicação e a distribuição de forma programada, usando o RMO (Replication Management Objects).

Para desabilitar a publicação e a distribuição

  1. Remova todas as assinaturas das publicações que usam o Distribuidor. Para obter mais informações, consulte Como excluir uma assinatura pull (Programação RMO) e Como excluir uma assinatura push (Programação RMO).

  2. Se o Publicador e o Distribuidor estiverem no mesmo servidor, remova todas as publicações que usam o Distribuidor e desabilite a publicação em todos os bancos de dados. Para obter mais informações, consulte Como excluir uma publicação (Programação RMO).

  3. Crie uma conexão com o Distribuidor usando a classe Serverconnection.

  4. Crie uma instância da classe DistributionPublisher. Especifique a propriedade name()()()() e passe o objeto ServerConnection da etapa 3.

  5. (Opcional) Chame o método LoadProperties para obter as propriedades do objeto e para verificar se o Publicador existe. Se esse método retornar false, o nome do Publicador definido na etapa 4 estava incorreto ou o Publicador não está sendo usado pelo Distribuidor.

  6. Chame o método Remove(Boolean). Passe um valor de true para force caso o Publicador e o Distribuidor estejam em servidores diferentes, e quando o Publicador tiver de ser desinstalado no Distribuidor, sem verificar primeiro se não há publicações no Publicador.

  7. Crie uma instância da classe ReplicationServer. Passe o objeto ServerConnection da etapa 3.

  8. Chame o método UninstallDistributor. Passe um valor de true para a force para remover todos os objetos de replicação no Distribuidor sem verificar primeiro se todos os bancos de dados de publicação locais foram desabilitados e os bancos de dados de distribuição desinstalados.

Exemplo

Esse exemplo remove o registro do Publicador no Distribuidor, descarta o banco de dados de distribuição e desinstala o Distribuidor.

           // Set the Distributor and publication database names.
            // Publisher and Distributor are on the same server instance.
            string publisherName = publisherInstance;
            string distributorName = publisherInstance;
            string distributionDbName = "distribution";
            string publicationDbName = "AdventureWorks";

            // Create connections to the Publisher and Distributor
            // using Windows Authentication.
            ServerConnection publisherConn = new ServerConnection(publisherName);
            ServerConnection distributorConn = new ServerConnection(distributorName);

            // Create the objects we need.
            ReplicationServer distributor =
                new ReplicationServer(distributorConn);
            DistributionPublisher publisher;
            DistributionDatabase distributionDb =
                new DistributionDatabase(distributionDbName, distributorConn);
            ReplicationDatabase publicationDb;
            publicationDb = new ReplicationDatabase(publicationDbName, publisherConn);

            try
            {
                // Connect to the Publisher and Distributor.
                publisherConn.Connect();
                distributorConn.Connect();

                // Disable all publishing on the AdventureWorks2008R2 database.
                if (publicationDb.LoadProperties())
                {
                    if (publicationDb.EnabledMergePublishing)
                    {
                        publicationDb.EnabledMergePublishing = false;
                    }
                    else if (publicationDb.EnabledTransPublishing)
                    {
                        publicationDb.EnabledTransPublishing = false;
                    }
                }
                else
                {
                    throw new ApplicationException(
                        String.Format("The {0} database does not exist.", publicationDbName));
                }

                // We cannot uninstall the Publisher if there are still Subscribers.
                if (distributor.RegisteredSubscribers.Count == 0)
                {
                    // Uninstall the Publisher, if it exists.
                    publisher = new DistributionPublisher(publisherName, distributorConn);
                    if (publisher.LoadProperties())
                    {
                        publisher.Remove(false);
                    }
                    else
                    {
                        // Do something here if the Publisher does not exist.
                        throw new ApplicationException(String.Format(
                            "{0} is not a Publisher for {1}.", publisherName, distributorName));
                    }

                    // Drop the distribution database.
                    if (distributionDb.LoadProperties())
                    {
                        distributionDb.Remove();
                    }
                    else
                    {
                        // Do something here if the distribition DB does not exist.
                        throw new ApplicationException(String.Format(
                            "The distribution database '{0}' does not exist on {1}.",
                            distributionDbName, distributorName));
                    }

                    // Uninstall the Distributor, if it exists.
                    if (distributor.LoadProperties())
                    {
                        // Passing a value of false means that the Publisher 
                        // and distribution databases must already be uninstalled,
                        // and that no local databases be enabled for publishing.
                        distributor.UninstallDistributor(false);
                    }
                    else
                    {
                        //Do something here if the distributor does not exist.
                        throw new ApplicationException(String.Format(
                            "The Distributor '{0}' does not exist.", distributorName));
                    }
                }
                else
                {
                    throw new ApplicationException("You must first delete all subscriptions.");
                }
            }
            catch (Exception ex)
            {
                // Implement appropriate error handling here.
                throw new ApplicationException("The Publisher and Distributor could not be uninstalled", ex);
            }
            finally
            {
                publisherConn.Disconnect();
                distributorConn.Disconnect();
            }
' Set the Distributor and publication database names.
' Publisher and Distributor are on the same server instance.
Dim publisherName As String = publisherInstance
Dim distributorName As String = subscriberInstance
Dim distributionDbName As String = "distribution"
Dim publicationDbName As String = "AdventureWorks2008R2"

' Create connections to the Publisher and Distributor
' using Windows Authentication.
Dim publisherConn As ServerConnection = New ServerConnection(publisherName)
Dim distributorConn As ServerConnection = New ServerConnection(distributorName)

' Create the objects we need.
Dim distributor As ReplicationServer
distributor = New ReplicationServer(distributorConn)
Dim publisher As DistributionPublisher
Dim distributionDb As DistributionDatabase
distributionDb = New DistributionDatabase(distributionDbName, distributorConn)
Dim publicationDb As ReplicationDatabase
publicationDb = New ReplicationDatabase(publicationDbName, publisherConn)

Try
    ' Connect to the Publisher and Distributor.
    publisherConn.Connect()
    distributorConn.Connect()

    ' Disable all publishing on the AdventureWorks database.
    If publicationDb.LoadProperties() Then
        If publicationDb.EnabledMergePublishing Then
            publicationDb.EnabledMergePublishing = False
        ElseIf publicationDb.EnabledTransPublishing Then
            publicationDb.EnabledTransPublishing = False
        End If
    Else
        Throw New ApplicationException( _
            String.Format("The {0} database does not exist.", publicationDbName))
    End If

    ' We cannot uninstall the Publisher if there are still Subscribers.
    If distributor.RegisteredSubscribers.Count = 0 Then
        ' Uninstall the Publisher, if it exists.
        publisher = New DistributionPublisher(publisherName, distributorConn)
        If publisher.LoadProperties() Then
            publisher.Remove(False)
        Else
            ' Do something here if the Publisher does not exist.
            Throw New ApplicationException(String.Format( _
                "{0} is not a Publisher for {1}.", publisherName, distributorName))
        End If

        ' Drop the distribution database.
        If distributionDb.LoadProperties() Then
            distributionDb.Remove()
        Else
            ' Do something here if the distribition DB does not exist.
            Throw New ApplicationException(String.Format( _
             "The distribution database '{0}' does not exist on {1}.", _
             distributionDbName, distributorName))
        End If

        ' Uninstall the Distributor, if it exists.
        If distributor.LoadProperties() Then
            ' Passing a value of false means that the Publisher 
            ' and distribution databases must already be uninstalled,
            ' and that no local databases be enabled for publishing.
            distributor.UninstallDistributor(False)
        Else
            'Do something here if the distributor does not exist.
            Throw New ApplicationException(String.Format( _
                "The Distributor '{0}' does not exist.", distributorName))
        End If
    Else
        Throw New ApplicationException("You must first delete all subscriptions.")
    End If

Catch ex As Exception
    ' Implement appropriate error handling here.
    Throw New ApplicationException("The Publisher and Distributor could not be uninstalled", ex)

Finally
    publisherConn.Disconnect()
    distributorConn.Disconnect()

End Try

Esse exemplo desinstala o Distribuidor sem desabilitar primeiro os bancos de dados de publicação locais ou descartar o banco de dados de distribuição.

          // Set the Distributor and publication database names.
            // Publisher and Distributor are on the same server instance.
            string distributorName = publisherInstance;

            // Create connections to the Distributor
            // using Windows Authentication.
            ServerConnection conn = new ServerConnection(distributorName);
            conn.DatabaseName = "master";

            // Create the objects we need.
            ReplicationServer distributor = new ReplicationServer(conn);

            try
            {
                // Connect to the Publisher and Distributor.
                conn.Connect();


                // Uninstall the Distributor, if it exists.
                // Use the force parameter to remove everthing.  
                if (distributor.IsDistributor && distributor.LoadProperties())
                {
                    // Passing a value of true means that the Distributor 
                    // is uninstalled even when publishing objects, subscriptions,
                    // and distribution databases exist on the server.
                    distributor.UninstallDistributor(true);
                }
                else
                {
                    //Do something here if the distributor does not exist.
                }
            }
            catch (Exception ex)
            {
                // Implement appropriate error handling here.
                throw new ApplicationException("The Publisher and Distributor could not be uninstalled", ex);
            }
            finally
            {
                conn.Disconnect();
            }
' Set the Distributor and publication database names.
' Publisher and Distributor are on the same server instance.
Dim distributorName As String = publisherInstance

' Create connections to the Distributor
' using Windows Authentication.
Dim conn As ServerConnection = New ServerConnection(distributorName)
conn.DatabaseName = "master"

' Create the objects we need.
Dim distributor As ReplicationServer = New ReplicationServer(conn)

Try
    ' Connect to the Publisher and Distributor.
    conn.Connect()


    ' Uninstall the Distributor, if it exists.
    ' Use the force parameter to remove everthing.  
    If distributor.IsDistributor And distributor.LoadProperties() Then
        ' Passing a value of true means that the Distributor 
        ' is uninstalled even when publishing objects, subscriptions,
        ' and distribution databases exist on the server.
        distributor.UninstallDistributor(True)
    Else
        'Do something here if the distributor does not exist.
    End If

Catch ex As Exception
    ' Implement appropriate error handling here.
    Throw New ApplicationException("The Publisher and Distributor could not be uninstalled", ex)

Finally
    conn.Disconnect()

End Try