# Elasticsearch cluster: node not able to connect to cluster

**URL:** <https://discuss.elastic.co/t/elasticsearch-cluster-node-not-able-to-connect-to-cluster/61909>\
**Category:** Elasticsearch\
**Created:** [September 30, 2016, 9:40am UTC](https://discuss.elastic.co/t/elasticsearch-cluster-node-not-able-to-connect-to-cluster/61909 "2016-09-30T09:40:53Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Meenal.Luktuke](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/meenal.luktuke/32/7795_2.png) [@Meenal.Luktuke](https://discuss.elastic.co/u/Meenal.Luktuke)\
**Post date:** [September 30, 2016, 9:40am UTC](https://discuss.elastic.co/t/elasticsearch-cluster-node-not-able-to-connect-to-cluster/61909/1 "2016-09-30T09:40:53Z")

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Hi,

I have created a 2-node cluster of Elastic search. But on the data node, I get the below error:

[2016-09-30 11:36:16,156][INFO][discovery.zen] [VM-04] failed to se  
nd join request to master [{VM-05}{uA5qlZYTT4ybmuZgLT7OZQ}{10.97.252.12}{10.97.2  
52.12:9300}], reason [RemoteTransportException[[VM-05][10.97.252.12:9300][intern  
al:discovery/zen/join]]; nested: ConnectTransportException[[VM-04][10.97.252.11:  
9300] connect\_timeout[30s]]; nested: NotSerializableExceptionWrapper[connect\_exc  
eption: Connection timed out: no further information: /10.97.252.11:9300]; ]

Settings in elasticsearch.yml:

1: Data node  
[cluster.name](http://cluster.name): elasticsearch  
[node.name](http://node.name): VM-04  
node.master: false  
network.host: "10.97.252.11"  
discovery.zen.ping.unicast.hosts: ["10.97.252.11:9300","10.97.252.12:9300", "10.97.252.13:9300"]

2: Master node  
[cluster.name](http://cluster.name): elasticsearch  
[node.name](http://node.name): VM-05  
network.host: "10.97.252.12"  
discovery.zen.ping.unicast.hosts: ["10.97.252.11:9300","10.97.252.12:9300", "10.97.252.13:9300

What am I missing?

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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:** [July 5, 2017, 10:15pm UTC](https://discuss.elastic.co/t/elasticsearch-cluster-node-not-able-to-connect-to-cluster/61909/2 "2017-07-05T22:15:53Z")

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