# Change Elasticsearch configuration

**URL:** <https://discuss.elastic.co/t/change-elasticsearch-configuration/233457>\
**Category:** Elasticsearch\
**Created:** [May 20, 2020, 5:37am UTC](https://discuss.elastic.co/t/change-elasticsearch-configuration/233457 "2020-05-20T05:37:58Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![jinjinbari](https://avatars.discourse-cdn.com/v4/letter/j/ce73a5/32.png) [@jinjinbari](https://discuss.elastic.co/u/jinjinbari)\
**Post date:** [May 20, 2020, 5:37am UTC](https://discuss.elastic.co/t/change-elasticsearch-configuration/233457/1 "2020-05-20T05:37:58Z")

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Hi, I used Elasticsearch without shard&Replication configuration.  
(Because I used only for saving some logs)

The data are increasing, So now I want to use shard & Replication.

I already have been using 3TB. Is it possible to change configuration?  
(Now - 1 cluster, 3nodes)

Thank you.

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [May 20, 2020, 10:52pm UTC](https://discuss.elastic.co/t/change-elasticsearch-configuration/233457/2 "2020-05-20T22:52:42Z")

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You may need to clarify what you mean here. You have to have shards to have data in Elasticsearch, so saying you don't have it configured doesn't make sense sorry.

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**Author:** ![Sangmin\_Lee](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/sangmin_lee/32/45032_2.png) [@Sangmin\_Lee](https://discuss.elastic.co/u/Sangmin_Lee)\
**Post date:** [May 21, 2020, 2:00am UTC](https://discuss.elastic.co/t/change-elasticsearch-configuration/233457/3 "2020-05-21T02:00:24Z")

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I agree with warkolm.  
Even if you only save the log, the node must have a shard for it to work.

If you're confused about the terms,  
I recommend reading [this](https://www.elastic.co/guide/en/elasticsearch/reference/current/glossary.html)

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**Author:** ![jinjinbari](https://avatars.discourse-cdn.com/v4/letter/j/ce73a5/32.png) [@jinjinbari](https://discuss.elastic.co/u/jinjinbari)\
**Post date:** [June 2, 2020, 2:07am UTC](https://discuss.elastic.co/t/change-elasticsearch-configuration/233457/4 "2020-06-02T02:07:30Z")

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I mean, I used default configuration(1 shard, 1 replica)  
Is it possible to change this configuration?

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<div class="post-metadata">

**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [June 2, 2020, 2:12am UTC](https://discuss.elastic.co/t/change-elasticsearch-configuration/233457/5 "2020-06-02T02:12:32Z")

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Yes it is. You can define that in a template or in a mapping. [https://www.elastic.co/guide/en/elasticsearch/reference/current/index-modules.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/index-modules.html) has some guidance there.

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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:** [June 30, 2020, 2:12am UTC](https://discuss.elastic.co/t/change-elasticsearch-configuration/233457/6 "2020-06-30T02:12:47Z")

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