# Is rrf available in the free, self-hosted version of elastic search?
**URL:** https://discuss.elastic.co/t/is-rrf-available-in-the-free-self-hosted-version-of-elastic-search/342354
**Category:** Elasticsearch
**Tags:** docker
**Created:** [September 5, 2023, 3:16pm UTC](https://discuss.elastic.co/t/is-rrf-available-in-the-free-self-hosted-version-of-elastic-search/342354 "2023-09-05T15:16:38Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@panivan99pl](https://discuss.elastic.co/u/panivan99pl)
#### Post date: [September 5, 2023, 3:16pm UTC](https://discuss.elastic.co/t/is-rrf-available-in-the-free-self-hosted-version-of-elastic-search/342354/1 "2023-09-05T15:16:38Z")
I am using Elasticsearch as self-hosted in docker container, 8.9.1.
When I query with the parameter rrf Reciprocal rank fusion, I get this message elasticsearch.AuthorizationException: AuthorizationException(403, 'security\_exception', 'current license is non-compliant for [Reciprocal Rank Fusion (RRF)]')
Do I understand correctly that this function is not available in free plan ? I couldn't find any information about it anywhere
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### Author:  [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [September 5, 2023, 3:39pm UTC](https://discuss.elastic.co/t/is-rrf-available-in-the-free-self-hosted-version-of-elastic-search/342354/2 "2023-09-05T15:39:40Z")
Have a look at: [Subscriptions | Elastic Stack Products & Support | Elastic](https://www.elastic.co/subscriptions)
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [October 3, 2023, 3:39pm UTC](https://discuss.elastic.co/t/is-rrf-available-in-the-free-self-hosted-version-of-elastic-search/342354/3 "2023-10-03T15:39:59Z")
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