# Elasticsearch cluster UUID: \_na\_

**URL:** <https://discuss.elastic.co/t/elasticsearch-cluster-uuid-na/218707>\
**Category:** Elasticsearch\
**Created:** [February 11, 2020, 4:25am UTC](https://discuss.elastic.co/t/elasticsearch-cluster-uuid-na/218707 "2020-02-11T04:25:46Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![AndyGarcia](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/andygarcia/32/62315_2.png) [@AndyGarcia](https://discuss.elastic.co/u/AndyGarcia)\
**Post date:** [February 11, 2020, 4:25am UTC](https://discuss.elastic.co/t/elasticsearch-cluster-uuid-na/218707/1 "2020-02-11T04:25:47Z")

</div>

I have multiple elasticsearch nodes, all on seperate machines. For some reason they can't join the cluster.

My first node:

> ```
> {
> "name" : "myNode_1",
> "cluster_name" : "SRT411",
> "cluster_uuid" : "7lao_UsPTwuB1W5cy467KA",
> "version" : {
> "number" : "7.5.2",
> "build_flavor" : "default",
> "build_type" : "rpm",
> "build_hash" : "8bec50e1e0ad29dad5653712cf3bb580cd1afcdf",
> "build_date" : "2020-01-15T12:11:52.313576Z",
> "build_snapshot" : false,
> "lucene_version" : "8.3.0",
> "minimum_wire_compatibility_version" : "6.8.0",
> "minimum_index_compatibility_version" : "6.0.0-beta1"
> },
> "tagline" : "You Know, for Search"
> }
> 
> ```

My second node:

> ```
> > {
> > "name" : "myNode_2",
> > "cluster_name" : "SRT411",
> > "cluster_uuid" : "_na_",
> > "version" : {
> > "number" : "7.5.2",
> > "build_flavor" : "oss",
> > "build_type" : "rpm",
> > "build_hash" : "8bec50e1e0ad29dad5653712cf3bb580cd1afcdf",
> > "build_date" : "2020-01-15T12:11:52.313576Z",
> > "build_snapshot" : false,
> > "lucene_version" : "8.3.0",
> > "minimum_wire_compatibility_version" : "6.8.0",
> > "minimum_index_compatibility_version" : "6.0.0-beta1"
> > },
> > "tagline" : "You Know, for Search"
> > }
> 
> ```

When checking the logs on the second node I get this:

```
[2020-02-10T13:10:07,920][INFO][o.e.c.c.ClusterBootstrapService] [myNode_2] skipping cluster bootstrapping as local node does not match bootstrap requirements: [192.168.30.11]

[2020-02-10T13:10:17,926][WARN][o.e.c.c.ClusterFormationFailureHelper] [myNode_2] master not discovered yet, this node has not previously joined a bootstrapped (v7+) cluster, and this node must discover master-eligible nodes [192.168.30.11] to bootstrap a cluster: have discovered [{myNode_2}{Dk5X6WGcQbmvrESfSkMykw}{52w2p5UGRXKT6bK6y1JmNQ}{192.168.30.12}{192.168.30.12:9300}{dim}]; discovery will continue using [192.168.30.11:9300, 192.168.30.13:9300] from hosts providers and [{myNode_2}{Dk5X6WGcQbmvrESfSkMykw}{52w2p5UGRXKT6bK6y1JmNQ}{192.168.30.12}{192.168.30.12:9300}{dim}] from last-known cluster state; node term 0, last-accepted version 0 in term 0

```

I have opened the ports on both machines and I can successful use telnet with ports 9200 and 9300.

---

<div class="post-metadata">

**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [February 11, 2020, 4:51am UTC](https://discuss.elastic.co/t/elasticsearch-cluster-uuid-na/218707/2 "2020-02-11T04:51:15Z")

</div>

It looks like some nodes are using the default distribution while others use the OSS distribution. Make sure all nodes in the cluster use the same version and distribution.

---

<div class="post-metadata">

**Author:** ![AndyGarcia](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/andygarcia/32/62315_2.png) [@AndyGarcia](https://discuss.elastic.co/u/AndyGarcia)\
**Post date:** [February 11, 2020, 4:59pm UTC](https://discuss.elastic.co/t/elasticsearch-cluster-uuid-na/218707/3 "2020-02-11T16:59:19Z")

</div>

I've reinstalled elasticsearch but I noticed my first node says version 7.5.2 and when i install elasticsearch on the other nodes they're on 7.6.0 and it still gives me the same issue. Would the different versions cause this problem?

I can't figure out how to install 7.5.2 on the new nodes.

EDIT: I updated the first node to 7.6.0 and the additional nodes till won't join the cluster. I'm getting the exact same error.

EDIT2: Reinstalling elasticsearch on the VM fixed the issue.

```
{
  "name" : "myNode_1",
  "cluster_name" : "SRT411",
  "cluster_uuid" : "gx40LIPqQKS7tDW1BAOSAg",
  "version" : {
    "number" : "7.6.0",
    "build_flavor" : "default",
    "build_type" : "rpm",
    "build_hash" : "7f634e9f44834fbc12724506cc1da681b0c3b1e3",
    "build_date" : "2020-02-06T00:09:00.449973Z",
    "build_snapshot" : false,
    "lucene_version" : "8.4.0",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}

{
  "name" : "myNode_2",
  "cluster_name" : "SRT411",
  "cluster_uuid" : "_na_",
  "version" : {
    "number" : "7.6.0",
    "build_flavor" : "default",
    "build_type" : "rpm",
    "build_hash" : "7f634e9f44834fbc12724506cc1da681b0c3b1e3",
    "build_date" : "2020-02-06T00:09:00.449973Z",
    "build_snapshot" : false,
    "lucene_version" : "8.4.0",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}
```

---

<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:** [March 10, 2020, 4:59pm UTC](https://discuss.elastic.co/t/elasticsearch-cluster-uuid-na/218707/4 "2020-03-10T16:59:25Z")

</div>

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