# ELK multiple NODE on 2 server

**URL:** <https://discuss.elastic.co/t/elk-multiple-node-on-2-server/118074>\
**Category:** Elasticsearch\
**Created:** [February 1, 2018, 4:36pm UTC](https://discuss.elastic.co/t/elk-multiple-node-on-2-server/118074 "2018-02-01T16:36:21Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![PAQUIER\_Christophe](https://avatars.discourse-cdn.com/v4/letter/p/dc4da7/32.png) [@PAQUIER\_Christophe](https://discuss.elastic.co/u/PAQUIER_Christophe)\
**Post date:** [February 1, 2018, 4:36pm UTC](https://discuss.elastic.co/t/elk-multiple-node-on-2-server/118074/1 "2018-02-01T16:36:22Z")

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I want to join 2 nodes for Elasticsearch but i have an error

First node :  
[cluster.name](http://cluster.name) : elk\_spdc  
[node.name](http://node.name) :elk1  
node.data:true

network.host:192.168.1.61  
network.publish\_host:192.168.1.61  
network.bind\_host:192.168.1.61  
transport.tcp.port:9300  
http.port:9200

discovery.zen.ping.unicast.hosts:["192.168.1.61","192.168.1.62"]

second node :  
[cluster.name](http://cluster.name) : elk\_spdc  
[node.name](http://node.name) :elk2  
node.data:true

network.host:192.168.1.62  
network.publish\_host:192.168.1.62  
network.bind\_host:192.168.1.62  
transport.tcp.port:9300  
http.port:9200

discovery.zen.ping.unicast.hosts:["192.168.1.61","192.168.1.62"]

the 2 node start but i have an error  
"[2018-02-01T16:32:28,663][INFO][o.e.d.z.ZenDiscovery] [elk2] failed to send join request to master [{elk1}{AluThBB6SsqQRikPYMNRPg}{ntdez45wROGrcFPrchO2MQ}{192.168.1.61}{192.168.1.61:9300}], reason [RemoteTransportException[[elk1][192.168.1.61:9300][internal:discovery/zen/join]]; nested: IllegalArgumentException[can't add node {elk2}{AluThBB6SsqQRikPYMNRPg}{BlM7ByEoS-e4-Z6bv1Kgug}{192.168.1.62}{192.168.1.62:9300}, found existing node {elk1}{AluThBB6SsqQRikPYMNRPg}{ntdez45wROGrcFPrchO2MQ}{192.168.1.61}{192.168.1.61:9300} with the same id but is a different node instance]; ]  
"

I tried some different configuration but i can't joined 2 nodes.

Can you help me? I use elasticseach 6.6.1

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<div class="post-metadata">

**Author:** ![A\_B](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/a_b/32/17104_2.png) [@A\_B](https://discuss.elastic.co/u/A_B)\
**Post date:** [February 1, 2018, 5:16pm UTC](https://discuss.elastic.co/t/elk-multiple-node-on-2-server/118074/2 "2018-02-01T17:16:44Z")

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You might have a rogue elasticsearch node running already that is called `elk1`. That would be the first I would check 🙂

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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:** [March 1, 2018, 5:17pm UTC](https://discuss.elastic.co/t/elk-multiple-node-on-2-server/118074/3 "2018-03-01T17:17:08Z")

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