Cleanup

Hub Cleaning

Hub Cleanup can be performed periodically to permanently remove deleted hubs, sources and related objects from SmartHub. When a hub is deleted from the user interface, it will initially be “soft-deleted” (marked for deletion). The database will not be removed until the hub cleanup task runs after a specified number of days have passed.

There are two configuration settings in “System Configuration” for this:

• DaysToKeepHubDatabaseObjectsAfterSoftDeletion controls the number of days that must expire before the database holding data in the hub column store can be dropped. Note that as the definition of the hub is not deleted it will be possible to restore a deleted hub after the database is deleted. The hub loader will be able to recreate the database in the hub column store from the original sources (unless they have been removed).
• The definition of the hub will be deleted when more than the number of days specified in the DaysToKeepHubDesignObjectsAfterSoftDeletion config setting has passed. This can be set higher than the DaysToKeepHubDatabaseObjectsAfterSoftDeletion, since the definition is small compared to the actual data.

Single Page Survey Cleanup

This task cleans up any files created by the single page survey generation task where the files are older than 1 month.