# Heap optimization in ES 8.3, also in OpenSearch?

**URL:** <https://forum.opensearch.org/t/heap-optimization-in-es-8-3-also-in-opensearch/12360>\
**Category:** OpenSearch\
**Created:** [February 2, 2023, 5:25pm UTC](https://forum.opensearch.org/t/heap-optimization-in-es-8-3-also-in-opensearch/12360 "2023-02-02T17:25:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![drjz](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.opensearch.org/drjz/32/1083_2.png) [@drjz](https://forum.opensearch.org/u/drjz)\
**Post date:** [February 2, 2023, 5:25pm UTC](https://forum.opensearch.org/t/heap-optimization-in-es-8-3-also-in-opensearch/12360/1 "2023-02-02T17:25:40Z")

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Hi all, I am curious whether OpenSearch also has the heap optimization introduced in ES 8.3 that allows us to have significantly more shards per node than before. This is a massive improvement. See: [Size your shards | Elasticsearch Guide [8.6] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/current/size-your-shards.html#field-count-recommendation)

Does anyone know whether OpenSearch has this as well, and if so, which version?

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**Author:** ![reta](https://avatars.discourse-cdn.com/v4/letter/r/cdc98d/32.png) [@reta](https://forum.opensearch.org/u/reta)\
**Post date:** [February 2, 2023, 6:06pm UTC](https://forum.opensearch.org/t/heap-optimization-in-es-8-3-also-in-opensearch/12360/2 "2023-02-02T18:06:32Z")

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Hi @drjz ,

AFAIK there are no equivalent optimizations in OpenSearch (as of today).  
Thank you.