![]() If the changes cannot be found in the online transaction logs, it will look for them in the backup transaction logs instead. ![]() Data Movement gateway will first look for the changes in the online transaction logs. Prioritize Online Logs - This is the default.1) may adversely affect task processing, and possibly even result in an error.Ĭhange processing mode (Read changes from): Choose one of the following change processing modes: If Exclusive automatic truncation is selected, setting a very short interval (e.g. Factors that you should consider when determining the policy frequency include storage availability, backup and log routines, and the rate at which Data Movement gateway processes events. This method is not available when the Microsoft SQL Server Replication job resides on a remote Distributor machine as Data Movement gateway does not have access to the remote machine.Īpply TLOG truncation prevention policy every (seconds):Specify how often to prevent TLOG truncation using one of the methods describes above.When using this method with MS-CDC, the CDC Capture and CDC Cleanup jobs should be stopped and disabled.For instructions on how to do this, refer to the Microsoft SQL Server Management Studio help. Alternatively, you can stop the Log Reader Agent manually, before starting the landing task. If the Log Reader Agent is running when the task starts, Data Movement gateway will forcibly stop it. This method requires the Log Reader Agent to be stopped in the database.Therefore, if you need to run parallel landing tasks against the same database, use the default method. Also, using this method, only one landing task can access the database at any given time. Although this method does not involve any transactional activities, it can only be used when Microsoft Replication is not running. If you need Microsoft Replication to be enabled in your database, then you must choose this method.Įxclusive automatic truncation: When this method is used, the landing task reads the changes and then uses sp_repldone to mark the TLOG transactions as ready for truncation. As long as such a transaction is open, changes that appear after the transaction started will not be truncated. When this method is used, Data Movement gateway prevents TLOG truncation by mimicking a transaction in the database. Rely on SQL Server replication agent:This is the default method. To minimize the need to access the backup log, Data Movement gateway prevents truncation using one of the following methods: When this occurs, Data Movement gateway accesses the backup log to capture the missing changes. However, sometimes due to truncation, the active TLOG may not contain all of the unread changes. Safeguard policy: For optimal performance, Data Movement gateway will try to capture all unread changes from the active transaction log (TLOG). Client certificate key: The client private key file in PEM format.Client certificate: The client certificate requested by the server.When selected, the client certificate options will not be available. Trust server certificate: Skips the trust chain validation and automatically trusts the server certificate.Select to encrypt the communication between the database server. User Name and Password: The user name and password of a user authorized to access the Microsoft SQL Server database. For example, if the server name is and the port is 3333, then the server name should be: To override the default port, add the port to the server name, separated by a comma.
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