The housekeeping table lists housekeeping events and the time at which they were last performed and succeeded.
Some examples of the events recorded are database backups, cleanups, etc, as well as other events such as when the hardware profiler was run, logs cleaned, etc.
The hostname where the housekeeping took place is also recorded in some cases.
tag: JobQueueCleanup lastrun: 2006-10-11 11:10:14
tag: InUseProgramsCleanup lastrun: 2006-10-11 11:05:14
tag: JobQueueRecover-localhost.localdomain lastrun: 2007-03-12 09:36:17
tag: MythFillDB lastrun: 2007-03-12 18:40:58
tag: DailyCleanup lastrun: 2007-03-12 09:36:17
tag: ThemeUpdateNotifications hostname: NULL lastrun: 2019-01-24 06:27:15 lastsuccess: 2019-01-24 06:27:15
tag: DBCleanup hostname: NULL lastrun: 2019-01-23 18:38:22 lastsuccess: 2019-01-23 18:38:22
tag: HardwareProfiler hostname: <backend device> lastrun: 2019-01-03 00:07:52 lastsuccess: 2018-12-04 18:28:38