MergeSynchronizationAgent.Synchronize Method
Starts the Merge Agent to synchronize the subscription.
Namespace: Microsoft.SqlServer.Replication
Assembly: Microsoft.SqlServer.Replication (in Microsoft.SqlServer.Replication.dll)
Syntax
'Declaration
Public Overridable Sub Synchronize
'Usage
Dim instance As MergeSynchronizationAgent
instance.Synchronize()
public virtual void Synchronize()
public:
virtual void Synchronize()
abstract Synchronize : unit -> unit
override Synchronize : unit -> unit
public function Synchronize()
Implements
IMergeSynchronizationAgent.Synchronize()
Remarks
This method synchronously starts the Merge Agent. To start the Merge Agent asynchronously, call SynchronizeWithJob for a pull subscription or SynchronizeWithJob for a push subscription.
Examples
In the following example, the Synchronize method is called on the instance of the MergeSynchronizationAgent class accessed from the SynchronizationAgent property to synchronize the push subscription.
// Define the server, publication, and database names.
string subscriberName = subscriberInstance;
string publisherName = publisherInstance;
string publicationName = "AdvWorksSalesOrdersMerge";
string subscriptionDbName = "AdventureWorks2012Replica";
string publicationDbName = "AdventureWorks2012";
// Create a connection to the Publisher.
ServerConnection conn = new ServerConnection(publisherName);
MergeSubscription subscription;
try
{
// Connect to the Publisher
conn.Connect();
// Define the subscription.
subscription = new MergeSubscription();
subscription.ConnectionContext = conn;
subscription.DatabaseName = publicationDbName;
subscription.PublicationName = publicationName;
subscription.SubscriptionDBName = subscriptionDbName;
subscription.SubscriberName = subscriberName;
// If the push subscription exists, start the synchronization.
if (subscription.LoadProperties())
{
// Check that we have enough metadata to start the agent.
if (subscription.SubscriberSecurity != 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 push subscription does not exist.
throw new ApplicationException(String.Format(
"The 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.", 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 = "AdventureWorks2012Replica"
Dim publicationDbName As String = "AdventureWorks2012"
' Create a connection to the Publisher.
Dim conn As ServerConnection = New ServerConnection(publisherName)
Dim subscription As MergeSubscription
Try
' Connect to the Publisher
conn.Connect()
' Define the subscription.
subscription = New MergeSubscription()
subscription.ConnectionContext = conn
subscription.DatabaseName = publicationDbName
subscription.PublicationName = publicationName
subscription.SubscriptionDBName = subscriptionDbName
subscription.SubscriberName = subscriberName
' If the push subscription exists, start the synchronization.
If subscription.LoadProperties() Then
' Check that we have enough metadata to start the agent.
If Not subscription.SubscriberSecurity Is Nothing Then
' Synchronously start the Merge Agent for the subscription.
' Log agent messages to an output file.
subscription.SynchronizationAgent.Output = "mergeagent.log"
subscription.SynchronizationAgent.OutputVerboseLevel = 2
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 push subscription does not exist.
Throw New ApplicationException(String.Format( _
"The 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.", ex)
Finally
conn.Disconnect()
End Try
In the following example, an instance of the MergeSynchronizationAgent class is used to synchronize a merge subscription. Because the pull subscription was created by using a value of false for CreateSyncAgentByDefault, additional properties must be supplied.
// Define the server, publication, and database names.
string subscriberName = subscriberInstance;
string publisherName = publisherInstance;
string distributorName = distributorInstance;
string publicationName = "AdvWorksSalesOrdersMerge";
string subscriptionDbName = "AdventureWorks2012Replica";
string publicationDbName = "AdventureWorks2012";
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 = "AdventureWorks2012Replica"
Dim publicationDbName As String = "AdventureWorks2012"
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
See Also
Reference
MergeSynchronizationAgent Class
Microsoft.SqlServer.Replication Namespace