# Cluster with mix of cloud and self hosted

**URL:** <https://discuss.elastic.co/t/cluster-with-mix-of-cloud-and-self-hosted/263489>\
**Category:** Elasticsearch\
**Created:** [February 6, 2021, 8:25am UTC](https://discuss.elastic.co/t/cluster-with-mix-of-cloud-and-self-hosted/263489 "2021-02-06T08:25:39Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![efftee](https://avatars.discourse-cdn.com/v4/letter/e/77aa72/32.png) [@efftee](https://discuss.elastic.co/u/efftee)\
**Post date:** [February 6, 2021, 8:25am UTC](https://discuss.elastic.co/t/cluster-with-mix-of-cloud-and-self-hosted/263489/1 "2021-02-06T08:25:39Z")

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Hi

Are there any difficulties or limitations to have a cluster of instances mixing cloud-hosted Elasticsearch with self-hosted instances ?

I have a main cloud instance, hosted by Elasticsearch. And I am wondering if it is at all possible to have a self-hosted instance, more oriented to research and dev, while being part of the main instances cluster thereby having the same indexes and data available on the self-hosted instance...

I seem to remember having read somewhere that the versions need to be the same ?

Maybe there is a better way to achieve this ?

Kind regards

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**Author:** ![stephenb](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/stephenb/32/40856_2.png) [@stephenb](https://discuss.elastic.co/u/stephenb)\
**Post date:** [February 6, 2021, 5:29pm UTC](https://discuss.elastic.co/t/cluster-with-mix-of-cloud-and-self-hosted/263489/2 "2021-02-06T17:29:50Z")

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Hi @efftee

Mixing on prem - self managed nodes with and Elasticsearch hosted on Elastic Cloud is not supported.

In general trying to build a single cluster that spans on-prem to a cloud provider is not a best practice and would most likely results in an unstable cluster that would eventually split / fail. Elasticsearch cluster require very strict / low latency network between nodes. The public providers can assure this accross Availability zone within a Single region but that is about it for distributing node.

You may want to look into [cross cluster search](https://www.elastic.co/guide/en/elasticsearch/reference/7.10/modules-cross-cluster-search.html) to address your needs. There are some capabilities coming very soon that will allow the cross cluster search to occur between Self Manage and Elasticsearch hosted on Elastic Cloud.

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**Author:** ![efftee](https://avatars.discourse-cdn.com/v4/letter/e/77aa72/32.png) [@efftee](https://discuss.elastic.co/u/efftee)\
**Post date:** [February 6, 2021, 5:35pm UTC](https://discuss.elastic.co/t/cluster-with-mix-of-cloud-and-self-hosted/263489/3 "2021-02-06T17:35:53Z")

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Thank you Stephen, you've really helped me to not waist my time on an idea that was obviously bound for failure ! 😉

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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:** [March 6, 2021, 5:36pm UTC](https://discuss.elastic.co/t/cluster-with-mix-of-cloud-and-self-hosted/263489/4 "2021-03-06T17:36:03Z")

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