Upgrading the CDC Replication Engine for Event Server (Windows)

You can upgrade CDC Replication by installing a later version of the software over top of an existing installation.

Procedure

  1. Ensure that the CDC Replication instances are running and that all subscriptions in all CDC Replication instances are stopped.
  2. Ensure that all CDC Replication instances are stopped.
  3. Ensure that you have a backup of the TS_AUTH, TS_BOOKMARK, and TS_CONFAUD metadata tables that are stored in the database instance that you are replicating to and from. In the event of a failure during the upgrade, having a backup of the metadata will allow you to revert to the point in time before the upgrade. In addition to the CDC Replication metadata tables stored in your database, CDC Replication maintains some other metadata in an internal database. It is a best practice to back up the CDC Replication internal metadata at the same time as the CDC Replication metadata tables in your database are backed up. The dmbackupmd command can be used to back up the internal CDC Replication metadata tables.
  4. Ensure that you have backed up your CDC Replication installation directory.
    Important: The backup of the installation directory and the metadata tables should be from the same timestamp so that they contain an identical snapshot of data.
  5. Double-click the installation executable.

    The IBM® IBM Data Replication installation wizard opens.

  6. Select Upgrade existing product and then click Next.
  7. Select the folder for the existing installation of CDC Replication to be upgraded and click Next.
  8. If you agree to the license terms, select I accept the terms in the license agreement and click Next.
  9. Select the location for the shortcut folder and click Next.
  10. Review the pre-upgrade summary and click Install.
  11. After upgrading the software, you must start all the configured instances in order to complete the upgrade process. Depending on the number of tables and subscriptions configured, as well as the complexity of the mappings, the upgrade process can take anywhere from several minutes to hours. Once the upgrade process is complete, CDC Replication will be ready for replication and will restart.