# Elasticsearch data nodes

**URL:** <https://discuss.elastic.co/t/elasticsearch-data-nodes/311206>\
**Category:** Elasticsearch\
**Created:** [August 2, 2022, 11:14am UTC](https://discuss.elastic.co/t/elasticsearch-data-nodes/311206 "2022-08-02T11:14:53Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**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:** [August 2, 2022, 11:14am UTC](https://discuss.elastic.co/t/elasticsearch-data-nodes/311206/1 "2022-08-02T11:14:53Z")

</div>

Hello I am a beginner at elastic , I want to ask you what is the criteria to add another elasticsearch data node , meaning how to know if my elasticsearch node needs another node to perform better , is there a percentage of maximum usage or something like this?

---

<div class="post-metadata">

**Author:** ![79g](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/79g/32/109191_2.png) [@79g](https://discuss.elastic.co/u/79g)\
**Post date:** [August 3, 2022, 11:11am UTC](https://discuss.elastic.co/t/elasticsearch-data-nodes/311206/2 "2022-08-03T11:11:49Z")

</div>

Hello,

there are **multiple reasons** to scale/add nodes into the cluster. I put here some of then just for your reference.

1. To achieve high availability and not lose the cluster if one node fails
2. To replicate the data, and not lose data if the node containing the data fails
3. To increase the resources and performance of the cluster. You should consider there are some kinds of nodes. Check [official page](https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-node.html). So you can add nodes for ingest, transform, master...
4. Cross replication
5. ......

Other references:

- [Add and remove nodes in your cluster](https://www.elastic.co/guide/en/elasticsearch/reference/current/add-elasticsearch-nodes.html)
- [Scalability and resilience: clusters, nodes, and shards](https://www.elastic.co/guide/en/elasticsearch/reference/current/scalability.html)
- ...

Hope it helps.

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [August 31, 2022, 11:12am UTC](https://discuss.elastic.co/t/elasticsearch-data-nodes/311206/3 "2022-08-31T11:12:34Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.