# \[Elastic 7.2.1\] Problem creating a cluster from 3 single nodes

**URL:** <https://discuss.elastic.co/t/elastic-7-2-1-problem-creating-a-cluster-from-3-single-nodes/206798>\
**Category:** Elasticsearch\
**Created:** [November 6, 2019, 1:34pm UTC](https://discuss.elastic.co/t/elastic-7-2-1-problem-creating-a-cluster-from-3-single-nodes/206798 "2019-11-06T13:34:26Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![lexav1978](https://avatars.discourse-cdn.com/v4/letter/l/bcef8e/32.png) [@lexav1978](https://discuss.elastic.co/u/lexav1978)\
**Post date:** [November 6, 2019, 1:34pm UTC](https://discuss.elastic.co/t/elastic-7-2-1-problem-creating-a-cluster-from-3-single-nodes/206798/1 "2019-11-06T13:34:26Z")

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Hello,

I have 3 elastic servers initially in standalone mode, and I wanted to create a cluster with those 3 servers.  
I configure them but the cluster/health tells me that there is only one node in my cluster.

The cluster name is the same for the 3 nodes.  
Here is my conf (node.name is node1, node2 and node3 I only put node1 for the conf here but on each server node.name is set respectively to node1, node2 and node3):

cluster.name=rfp  
network.host=0.0.0.0  
network.publish\_host=_eth0_  
http.port=12020  
transport.tcp.port=12021  
node.name=node1  
discovery.seed\_hosts=node1:12021,node2:12021,node3:12021  
cluster.initial\_master\_nodes=node1,node2,node3

the \_cluster/health return me this on each node:  
{  
"cluster\_name" : "rfp",  
"status" : "green",  
"timed\_out" : false,  
"number\_of\_nodes" : 1,  
"number\_of\_data\_nodes" : 1,  
"active\_primary\_shards" : 0,  
"active\_shards" : 0,  
"relocating\_shards" : 0,  
"initializing\_shards" : 0,  
"unassigned\_shards" : 0,  
"delayed\_unassigned\_shards" : 0,  
"number\_of\_pending\_tasks" : 0,  
"number\_of\_in\_flight\_fetch" : 0,  
"task\_max\_waiting\_in\_queue\_millis" : 0,  
"active\_shards\_percent\_as\_number" : 100.0  
}

Please help 🙂

Regards,  
Xavier

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**Author:** ![spinscale](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/spinscale/32/25011_2.png) [@spinscale](https://discuss.elastic.co/u/spinscale)\
**Post date:** [November 7, 2019, 9:11am UTC](https://discuss.elastic.co/t/elastic-7-2-1-problem-creating-a-cluster-from-3-single-nodes/206798/2 "2019-11-07T09:11:00Z")

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I am confused. If you have three servers initially in standalone mode, they are three different clusters, so they will not form a cluster.

if you want to merge the data of those three clusters together, you might be best off using snapshotting all the data, then create a fresh cluster from three nodes and then restoring everything into that new cluster instead of using existing nodes with an existing data directory.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [December 5, 2019, 9:11am UTC](https://discuss.elastic.co/t/elastic-7-2-1-problem-creating-a-cluster-from-3-single-nodes/206798/3 "2019-12-05T09:11:09Z")

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