# Elasticsearch Data nodes

**URL:** <https://discuss.elastic.co/t/elasticsearch-data-nodes/309517>\
**Category:** Elasticsearch\
**Created:** [July 13, 2022, 9:23am UTC](https://discuss.elastic.co/t/elasticsearch-data-nodes/309517 "2022-07-13T09:23:38Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Farah\_Bhr](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/farah_bhr/32/82537_2.png) [@Farah\_Bhr](https://discuss.elastic.co/u/Farah_Bhr)\
**Post date:** [July 13, 2022, 9:23am UTC](https://discuss.elastic.co/t/elasticsearch-data-nodes/309517/1 "2022-07-13T09:23:39Z")

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Hello  
I am a beginner in elastic, I want to create an elasticsearch cluster with 3 data nodes, I want to ask can I specify for each data node, the type of logs  
meaning if I can specify for each data node what is the type of logs it can generate? or what contains each data node is automatically generated by elasticsearch ?

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**Author:** ![Tomo\_M](https://avatars.discourse-cdn.com/v4/letter/t/848f3c/32.png) [@Tomo\_M](https://discuss.elastic.co/u/Tomo_M)\
**Post date:** [July 13, 2022, 1:53pm UTC](https://discuss.elastic.co/t/elasticsearch-data-nodes/309517/2 "2022-07-13T13:53:19Z")

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Hi,

There are some [index shard allocation settings](https://www.elastic.co/guide/en/elasticsearch/reference/current/index-modules-allocation.html).

With detailed information what you want to do, there could be more detailed answer.

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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:** [July 13, 2022, 2:05pm UTC](https://discuss.elastic.co/t/elasticsearch-data-nodes/309517/3 "2022-07-13T14:05:27Z")

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> [@Farah\_Bhr](#):
>
> I am a beginner in elastic, I want to create an elasticsearch cluster with 3 data nodes, I want to ask can I specify for each data node, the type of logs  
> meaning if I can specify for each data node what is the type of logs it can generate? or what contains each data node is automatically generated by elasticsearch ?

Elasticsearch is a clustered system and data is generally held by the cluster as a whole and you do not need to control it in detail. You are generally better off allowing Elasticsearch to automatically handle balancing and replication of data.

As pointed out there are options to control it, but for small 3-node clusters you generally shouldn't.

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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:** [August 10, 2022, 2:06pm UTC](https://discuss.elastic.co/t/elasticsearch-data-nodes/309517/4 "2022-08-10T14:06:20Z")

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