Database Backup Procedures › Resynchronize the Databases

Resynchronize the Databases

The recommended backup and restore procedures include an instruction to back up the Event Manager database.

If you neglect this step, problems are likely to occur when the Event Manager tries to synchronize with CA Performance Center. The synchronization can fail because CA Performance Center still has the old Event Manager information, while the newly installed Event Manager has the new CA Performance Center information.

If this problem occurs, you must resynchronize these two databases.

Follow these steps:

1. Log in as a user with the Administrator role.
2. Navigate to the Manage Data Sources page.

   The Manage Data Sources page displays the current list of registered data sources.

3. Select the data source that you want to remove (to unregister).
4. Click Remove, and then click Yes to confirm the deletion.

   The data source is removed from the list.

5. Remove all CA Performance Center related properties from the em.general database table:

   DELETE from em.general where Attribute LIKE ‘NPC.%’;
   

6. Restart Event Manager, using the following command:

   /etc/init.d/caperfcenter_eventmanager restart
   

7. Return to the Manage Data Sources page.
8. Register the Event Manager data source.

Important! Because this procedure did not include a step to restore the Event Manager database, your notifications are not preserved. At minimum, you must recreate them. Otherwise, the Event Manager runs normally.