# Generating a periodic(i.e. timeslot based, say 2min duration) aggregation on an existing ELK index

**URL:** <https://discuss.elastic.co/t/generating-a-periodic-i-e-timeslot-based-say-2min-duration-aggregation-on-an-existing-elk-index/319858>\
**Category:** Elasticsearch\
**Created:** [November 26, 2022, 2:25pm UTC](https://discuss.elastic.co/t/generating-a-periodic-i-e-timeslot-based-say-2min-duration-aggregation-on-an-existing-elk-index/319858 "2022-11-26T14:25:06Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![rvadiga](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rvadiga/32/102601_2.png) [@rvadiga](https://discuss.elastic.co/u/rvadiga)\
**Post date:** [November 26, 2022, 2:25pm UTC](https://discuss.elastic.co/t/generating-a-periodic-i-e-timeslot-based-say-2min-duration-aggregation-on-an-existing-elk-index/319858/1 "2022-11-26T14:25:06Z")

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Hi Team,  
I need to design or derive a ELK index (configurable time-window/time-slot) populated based on a highly loaded (i.e say 300 million data points generated per day and indexed) ELK index and define a dashboard based on the newly created ELK index.  
Please shred some light on any suitable design solution approach in ELK 7.17.x

Regards  
Venkatesh

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [November 30, 2022, 12:50am UTC](https://discuss.elastic.co/t/generating-a-periodic-i-e-timeslot-based-say-2min-duration-aggregation-on-an-existing-elk-index/319858/2 "2022-11-30T00:50:59Z")

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I would start here - [Roll up or transform your data | Elasticsearch Guide [8.5] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/8.5/data-rollup-transform.html) - and figure out which one might work for your use case.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [December 28, 2022, 12:51am UTC](https://discuss.elastic.co/t/generating-a-periodic-i-e-timeslot-based-say-2min-duration-aggregation-on-an-existing-elk-index/319858/3 "2022-12-28T00:51:22Z")

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