# Change ES cluster\_uuid

**URL:** <https://discuss.elastic.co/t/change-es-cluster-uuid/193092>\
**Category:** Elasticsearch\
**Created:** [July 31, 2019, 10:27am UTC](https://discuss.elastic.co/t/change-es-cluster-uuid/193092 "2019-07-31T10:27:33Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![DavidTurner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davidturner/32/22453_2.png) [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)\
**Post date:** [July 31, 2019, 11:15am UTC](https://discuss.elastic.co/t/change-es-cluster-uuid/193092/2 "2019-07-31T11:15:11Z")

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> [@rschirin](#):
>
> I don't know how this could happened but I can say that I cloned one node from the first cluster to create the new one.

That would explain it 🙂 It's best not to clone nodes, it can cause all sorts of strange issues.

> [@rschirin](#):
>
> is there a way to change the cluster\_uuid?

Yes, [the `elasticsearch-node unsafe-bootstrap` tool](https://www.elastic.co/guide/en/elasticsearch/reference/current/node-tool.html) will generate a new cluster UUID.

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_[View the full topic](https://discuss.elastic.co/t/change-es-cluster-uuid/193092)._