# How to add an already existing ElasticSearch server to Cluster?

**URL:** <https://discuss.elastic.co/t/how-to-add-an-already-existing-elasticsearch-server-to-cluster/279575>\
**Category:** Elasticsearch\
**Created:** [July 25, 2021, 5:23pm UTC](https://discuss.elastic.co/t/how-to-add-an-already-existing-elasticsearch-server-to-cluster/279575 "2021-07-25T17:23:54Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![subash](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/subash/32/59912_2.png) [@subash](https://discuss.elastic.co/u/subash)\
**Post date:** [July 25, 2021, 5:23pm UTC](https://discuss.elastic.co/t/how-to-add-an-already-existing-elasticsearch-server-to-cluster/279575/1 "2021-07-25T17:23:54Z")

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We have a standalone ElasticSearch server having around 50 indices. We want to add this server to a cluster of 3 nodes which are new (having no data/indices). Is it achievable in Elastic search? Please suggest.

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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:** [July 25, 2021, 11:31pm UTC](https://discuss.elastic.co/t/how-to-add-an-already-existing-elasticsearch-server-to-cluster/279575/2 "2021-07-25T23:31:38Z")

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Yes this is possible.

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**Author:** ![subash](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/subash/32/59912_2.png) [@subash](https://discuss.elastic.co/u/subash)\
**Post date:** [July 26, 2021, 1:05am UTC](https://discuss.elastic.co/t/how-to-add-an-already-existing-elasticsearch-server-to-cluster/279575/3 "2021-07-26T01:05:47Z")

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Thank you mark.

If so, the data from those 50 inidices will get replicated onto the other servers?

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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:** [July 26, 2021, 2:05am UTC](https://discuss.elastic.co/t/how-to-add-an-already-existing-elasticsearch-server-to-cluster/279575/4 "2021-07-26T02:05:42Z")

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As long as you have replicas enabled, yep.

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<div class="post-metadata">

**Author:** ![subash](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/subash/32/59912_2.png) [@subash](https://discuss.elastic.co/u/subash)\
**Post date:** [July 26, 2021, 5:04am UTC](https://discuss.elastic.co/t/how-to-add-an-already-existing-elasticsearch-server-to-cluster/279575/6 "2021-07-26T05:04:45Z")

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Thanks a lot @warkolm. It worked

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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 23, 2021, 5:05am UTC](https://discuss.elastic.co/t/how-to-add-an-already-existing-elasticsearch-server-to-cluster/279575/7 "2021-08-23T05:05:28Z")

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