# ERROR Bootstrap {node validation exceptio}

**URL:** <https://discuss.elastic.co/t/error-bootstrap-node-validation-exceptio/179426>\
**Category:** Elasticsearch\
**Created:** [May 2, 2019, 6:52pm UTC](https://discuss.elastic.co/t/error-bootstrap-node-validation-exceptio/179426 "2019-05-02T18:52:26Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![jcesar\_key](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jcesar_key/32/45349_2.png) [@jcesar\_key](https://discuss.elastic.co/u/jcesar_key)\
**Post date:** [May 2, 2019, 6:52pm UTC](https://discuss.elastic.co/t/error-bootstrap-node-validation-exceptio/179426/1 "2019-05-02T18:52:26Z")

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I'm having a problem installing my Elastic for the first time, I've already run it before in the lab, but when I try again on other machines I get this message below:

```auto
[ERROR] [o.e.b.Bootstrap] [[$ jarvis]] node validation exception
[1] bootstrap checks failed
[1]: the default discovery settings are unsuitable for production use; at least one of [discovery.seed_hosts, discovery.seed_providers, cluster.initial_master_nodes] must be configured
[2019-05-02T15: 47: 39,761] [INFO] [o.e.node] [[$ jarvis]] stopping ...
[2019-05-02T15: 47: 39,778] [INFO] [o.e.n.Node] [[$ jarvis]] stopped
[2019-05-02T15: 47: 39,779] [INFO] [o.e.n.Node] [[$ jarvis]] closing ...
[2019-05-02T15: 47: 39,795] [INFO] [o.e.n.Node] [[$ jarvis]] closed
[2019-05-02T15: 47: 39,798] [o.e.x.m.p.NativeController] [[$ jarvis]] Native controller process has stopped - no new native processes can be started

```

I realemnet I do not know where it happens, I already looked in the forum and documentation but I did not get a solution that would help me.

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<div class="post-metadata">

**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:** [May 2, 2019, 8:42pm UTC](https://discuss.elastic.co/t/error-bootstrap-node-validation-exceptio/179426/2 "2019-05-02T20:42:27Z")

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Hi @jcesar_key, the solution is right there in the error message:

> [@jcesar\_key](#):
>
> `at least one of [discovery.seed_hosts, discovery.seed_providers, cluster.initial_master_nodes] must be configured`

Here is a link to a page of the docs that I hope will help: [https://www.elastic.co/guide/en/elasticsearch/reference/current/discovery-settings.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/discovery-settings.html)

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<div class="post-metadata">

**Author:** ![jcesar\_key](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jcesar_key/32/45349_2.png) [@jcesar\_key](https://discuss.elastic.co/u/jcesar_key)\
**Post date:** [May 3, 2019, 6:35pm UTC](https://discuss.elastic.co/t/error-bootstrap-node-validation-exceptio/179426/3 "2019-05-03T18:35:56Z")

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I've even looked at this before, but it does not apply because I have a single node in my cluster, not having a master, a discovery.ping, and a host.

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<div class="post-metadata">

**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:** [May 3, 2019, 9:39pm UTC](https://discuss.elastic.co/t/error-bootstrap-node-validation-exceptio/179426/4 "2019-05-03T21:39:35Z")

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A one-node cluster is still a cluster. It still has a master and still needs to be bootstrapped, if only to tell the node whether it's supposed to be joining a larger cluster or not. You need to set `cluster.initial_master_nodes`.

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<div class="post-metadata">

**Author:** ![jcesar\_key](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jcesar_key/32/45349_2.png) [@jcesar\_key](https://discuss.elastic.co/u/jcesar_key)\
**Post date:** [May 14, 2019, 6:50pm UTC](https://discuss.elastic.co/t/error-bootstrap-node-validation-exceptio/179426/5 "2019-05-14T18:50:45Z")

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Sorry, I understood now what you said, I did it and it worked, thank you very much.

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<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:** [June 11, 2019, 7:00pm UTC](https://discuss.elastic.co/t/error-bootstrap-node-validation-exceptio/179426/6 "2019-06-11T19:00:54Z")

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