# I want to know details about how we reduced the heap usage per shard
**URL:** https://discuss.elastic.co/t/i-want-to-know-details-about-how-we-reduced-the-heap-usage-per-shard/350346
**Category:** Elasticsearch
**Created:** [January 4, 2024, 3:34am UTC](https://discuss.elastic.co/t/i-want-to-know-details-about-how-we-reduced-the-heap-usage-per-shard/350346 "2024-01-04T03:34:33Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@emmning](https://discuss.elastic.co/u/emmning)
#### Post date: [January 4, 2024, 3:34am UTC](https://discuss.elastic.co/t/i-want-to-know-details-about-how-we-reduced-the-heap-usage-per-shard/350346/1 "2024-01-04T03:34:33Z")
Through this [blog](https://www.elastic.co/blog/how-many-shards-should-i-have-in-my-elasticsearch-cluster) I see that starting from 8.3, we have significantly reduced Usage of each shard of the heap. I would like to know more details about how we can reduce the heap usage per shard. Anyone knows a PR or blog about this optimization, i can't find it in release note of 8.3
---
### Author:  [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)
#### Post date: [January 4, 2024, 9:28am UTC](https://discuss.elastic.co/t/i-want-to-know-details-about-how-we-reduced-the-heap-usage-per-shard/350346/2 "2024-01-04T09:28:15Z")
It was a combination of lots of small fixes, several of which landed in versions before 8.3 too. See [Fix Large Shard Count Scalability Issues · Issue #77466 · elastic/elasticsearch · GitHub](https://github.com/elastic/elasticsearch/issues/77466).
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [February 1, 2024, 9:28am UTC](https://discuss.elastic.co/t/i-want-to-know-details-about-how-we-reduced-the-heap-usage-per-shard/350346/3 "2024-02-01T09:28:16Z")
This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.