3 Housekeeping

Overview

In this section housekeeping tasks can be enabled or disabled on a per-task basis separately for: events and alerts/IT services/user sessions/history/trends. Audit housekeeping settings are available in a separate .

Deleting an item/trigger will also delete problems generated by that item/trigger.

Also, an event will only be deleted by the housekeeper if it is not associated with a problem in any way. This means that if an event is either a problem or recovery event, it will not be deleted until the related problem record is removed. The housekeeper will delete problems first and events after, to avoid potential problems with stale events or problem records.

It is possible to override the history/trend storage period even if internal housekeeping is disabled. Thus, when using an external housekeeper, the history storage period could be set using the history Data storage period field.

If using TimescaleDB, in order to take full advantage of TimescaleDB automatic partitioning of history and trends tables, Override item history period and Override item trend period options must be enabled as well as Enable internal housekeeping option for history and trends. Otherwise, the data kept in these tables will still be stored in partitions, however, the housekeeper will be cleaning the history and trends by deleting individual records rather than by dropping outdated partitions. When dropping of outdated partitions is enabled, Zabbix server and frontend will no longer keep track of deleted items and history for deleted items will be cleared when an outdated partition is deleted.

The Reset defaults button allows to revert any changes made.