# Core Historian - Not populating datapoints table

**URL:** <https://forum.inductiveautomation.com/t/core-historian-not-populating-datapoints-table/117306>\
**Category:** Ignition\
**Tags:** ignition83\
**Created:** [October 2, 2026, 12:30pm UTC](https://forum.inductiveautomation.com/t/core-historian-not-populating-datapoints-table/117306 "2026-10-02T12:30:17Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![luca.gianola](https://avatars.discourse-cdn.com/v4/letter/l/edb3f5/32.png) [@luca.gianola](https://forum.inductiveautomation.com/u/luca.gianola)\
**Post date:** [October 2, 2026, 12:30pm UTC](https://forum.inductiveautomation.com/t/core-historian-not-populating-datapoints-table/117306/1 "2026-10-02T12:30:17Z")

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Hi everyone,

I am currently using the new core historian in my project to store around 6,000 tags. After making some modifications during the week, I changed the prune age settings.

Since then, some data has stopped being registered in the `datapoints` table—specifically, all affected tags are of the integer type. Upon checking the definition table, I noticed that these tags have two `node_id` entries with the exact same string, but both are marked as active rather than retired.

I haven't been able to record data for the past 2–3 days, and I couldn't find anything helpful in the logs.

Does anyone have any suggestions or know how to resolve this?

 ![Screenshot 2026-10-02 135802](https://us1.discourse-cdn.com/inductiveautomation/original/3X/0/8/08caa69981fca1fcd30035bc410bc779409b8793.jpeg)

Many thanks,  
Luca