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Chapter 4. System Staleness and Deletion

System deletion is the automated removal of systems from the Red Hat Insights inventory after all sources stop reporting information about it for a defined period of time.

System staleness is reporting when a system has missed check-ins for a defined period of time but is not yet deleted.

4.1. Rules for System Staleness and Deletion

The inventory reporting service, as part of their messaging, includes a timestamp for when the report about the host is considered stale. This timestamp is determined by the reporting service and defaults to a value set by the user account.

When various reporters contribute data to the host in the host inventory, staleness states are recalculated.

Systems in the inventory have the following three fields related to staleness and deletion:

  • "stale_timestamp": "2019-12-13T19:36:30.979Z"
  • "stale_warning_timestamp": "2019-12-13T19:36:30.979Z"
  • "culled_timestamp": "2019-12-13T19:36:30.978Z"

Rules:

  • Before the stale_timestamp is reached, a system is considered fresh
  • Between the stale_timestamp and stale_warning_timestamp, a system is considered stale
  • Between the stale_warning_timestamp and culled_timestamp, a system is considered in the “stale warning” state and is scheduled for deletion
  • After the culled_timestamp is reached, a system and all associated data are automatically deleted

4.2. Viewing stale system summary

You can see stale systems and the ones scheduled for deletion in the following places in the Red Hat Insights user interface:

Dashboard: In the Red Hat Insights dashboard summary, you can see the number of stale systems and the number of systems scheduled for deletion displayed under System inventory. Click on the respective links to see the list of stale systems and the ones marked for deletion.

Inventory: On the last seen column, you will see systems marked for deletion with a warning icon. Hover on the last seen information to see if a system will be removed from the inventory in the next x days or if it is already scheduled for deletion.

4.3. Filtering system inventory

You can filter the inventory by system status: Fresh, Stale, and Stale warning. Note that by default fresh and stale systems are listed, but stale warning systems are not shown in the user interface. You can also select the source, which is Insights by default, and filter by system name. You can remove a particular filter in effect, or clear all at once.