# Coordinator node failed to join the cluster

**URL:** <https://discuss.elastic.co/t/coordinator-node-failed-to-join-the-cluster/249517>\
**Category:** Elasticsearch\
**Created:** [September 22, 2020, 12:14pm UTC](https://discuss.elastic.co/t/coordinator-node-failed-to-join-the-cluster/249517 "2020-09-22T12:14:27Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Abdelhalim](https://avatars.discourse-cdn.com/v4/letter/a/838e76/32.png) [@Abdelhalim](https://discuss.elastic.co/u/Abdelhalim)\
**Post date:** [September 22, 2020, 12:14pm UTC](https://discuss.elastic.co/t/coordinator-node-failed-to-join-the-cluster/249517/1 "2020-09-22T12:14:27Z")

</div>

Hello,

I am trying to add a coordinator node to my cluster, but I am facing this error when I run it :

```auto
[2020-09-22T14:03:00,808][INFO][o.e.c.c.JoinHelper] [coordinator-node] failed to join {VSELK-MASTER-02}{7ZSdp7FQQaa_34eM2LQzjA}{-HOAFDSlSF-iDOnE4ZSdFg}{10.13.81.12}{10.13.81.12:9300}{dilmrt}{ml.machine_memory=8365060096, ml.max_open_jobs=20, xpack.installed=true, data=hot, transform.node=true} with JoinRequest{sourceNode={coordinator-node}{Wb5iaDUWS5qKmiO7P9ABEg}{KvuU9jjPROCcCFdHyvon1g}{10.13.81.40}{10.13.81.40:9300}{xpack.installed=true, transform.node=false}, minimumTerm=74, optionalJoin=Optional[Join{term=74, lastAcceptedTerm=0, lastAcceptedVersion=0, sourceNode={coordinator-node}{Wb5iaDUWS5qKmiO7P9ABEg}{KvuU9jjPROCcCFdHyvon1g}{10.13.81.40}{10.13.81.40:9300}{xpack.installed=true, transform.node=false}, targetNode={VSELK-MASTER-02}{7ZSdp7FQQaa_34eM2LQzjA}{-HOAFDSlSF-iDOnE4ZSdFg}{10.13.81.12}{10.13.81.12:9300}{dilmrt}{ml.machine_memory=8365060096, ml.max_open_jobs=20, xpack.installed=true, data=hot, transform.node=true}}]}

```

And the error in the master node is :

```auto
[2020-09-22T14:00:14,731][WARN][o.e.c.c.Coordinator] [VSELK-MASTER-02] failed to validate incoming join request from node [{coordinator-node}{Wb5iaDUWS5qKmiO7P9ABEg}{KvuU9jjPROCcCFdHyvon1g}{10.13.81.40}{10.13.81.40:9300}{xpack.installed=true, transform.node=false}]
org.elasticsearch.transport.RemoteTransportException: [coordinator-node][10.13.81.40:9300][internal:cluster/coordination/join/validate]

```

The configuration of the coordinator node is:

```auto
cluster.name: ClusterName
 node.master: false
 node.data: false
 node.ingest: false
network.host: 10.13.81.40
http.port: 9200
discovery.seed_hosts: ["@IP Master-1", "@IP Master-2", "@IP Master-3"]
cluster.initial_master_nodes: ["name master-1", "name master-2", "name master-3"]

```

Could someone tell me where is the mistake please !

Thanks for your help 🙂

---

<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:** [October 20, 2020, 12:14pm UTC](https://discuss.elastic.co/t/coordinator-node-failed-to-join-the-cluster/249517/2 "2020-10-20T12:14:42Z")

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