# Clustering two nodes with different data

**URL:** https://discuss.elastic.co/t/clustering-two-nodes-with-different-data/238474
**Category:** Elasticsearch
**Created:** [June 24, 2020, 1:09pm UTC](https://discuss.elastic.co/t/clustering-two-nodes-with-different-data/238474 "2020-06-24T13:09:42Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![Alvaro\_Sanz](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/alvaro_sanz/32/70648_2.png) [@Alvaro\_Sanz](https://discuss.elastic.co/u/Alvaro_Sanz)
#### Post date: [June 24, 2020, 1:09pm UTC](https://discuss.elastic.co/t/clustering-two-nodes-with-different-data/238474/1 "2020-06-24T13:09:42Z")

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Hello,

I am trying to form a cluster of two elasticsearch nodes. The both nodes have been in production environment for a while, and they both have different data. Is it possible to make a cluster of both nodes? In case it is possible, will the data merge between both two nodes correctly? Or should I expect a problem?

Thank you.  
Regards.

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### Author: ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [June 24, 2020, 1:50pm UTC](https://discuss.elastic.co/t/clustering-two-nodes-with-different-data/238474/2 "2020-06-24T13:50:29Z")

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No, that will not work. Reindex data from one node to the other and then let the node join as an empty node.

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<div class="post-metadata">

### Author: ![Alvaro\_Sanz](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/alvaro_sanz/32/70648_2.png) [@Alvaro\_Sanz](https://discuss.elastic.co/u/Alvaro_Sanz)
#### Post date: [June 24, 2020, 1:56pm UTC](https://discuss.elastic.co/t/clustering-two-nodes-with-different-data/238474/3 "2020-06-24T13:56:00Z")

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Thank you!

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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: [July 22, 2020, 1:56pm UTC](https://discuss.elastic.co/t/clustering-two-nodes-with-different-data/238474/4 "2020-07-22T13:56:04Z")

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