# Tag History Partitions and Pruning

**URL:** <https://forum.inductiveautomation.com/t/tag-history-partitions-and-pruning/92775>\
**Category:** Ignition\
**Tags:** ignition81, ignition79, ignition80\
**Created:** [July 3, 2024, 9:33pm UTC](https://forum.inductiveautomation.com/t/tag-history-partitions-and-pruning/92775 "2024-07-03T21:33:21Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![amarks](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/amarks/32/45610_2.png) [@amarks](https://forum.inductiveautomation.com/u/amarks)\
**Post date:** [July 3, 2024, 9:33pm UTC](https://forum.inductiveautomation.com/t/tag-history-partitions-and-pruning/92775/1 "2024-07-03T21:33:21Z")

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Quick questions, when you change the partitioning and pruning settings for a tag history provider, when do those changes take affect?

For instance, changing pruning from 1 year to 6 months, when is that data deleted? Or, changing partitioning from 1 month to 20 days?

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**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\
**Post date:** [July 3, 2024, 10:35pm UTC](https://forum.inductiveautomation.com/t/tag-history-partitions-and-pruning/92775/2 "2024-07-03T22:35:36Z")

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I don't have any reason to think things have changed since I last looked this up, so:

> [@Historian Data Pruning](https://forum.inductiveautomation.com/t/historian-data-pruning/41587/2):
>
> The tags.history.query.PartitionManager logger on DEBUG/TRACE may have some information; the prune task is supposed to execute every 10 minutes.