# Cluster formation failure
**URL:** https://forum.opensearch.org/t/cluster-formation-failure/2437
**Category:** Open Source Elasticsearch and Kibana
**Created:** [March 19, 2020, 9:24pm UTC](https://forum.opensearch.org/t/cluster-formation-failure/2437 "2020-03-19T21:24:52Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@ashishpatil09](https://forum.opensearch.org/u/ashishpatil09)
#### Post date: [March 19, 2020, 9:24pm UTC](https://forum.opensearch.org/t/cluster-formation-failure/2437/1 "2020-03-19T21:24:52Z")
Hi
I am using open distro version 1.4 and trying to form cluster, I have 3 master node and 3 data node.
I am stuck and facing the same error as mentioned in below thread
> [@Master node cannot discover other nodes in a cluster](https://forum.opensearch.org/t/master-node-cannot-discover-other-nodes-in-a-cluster/1763):
>
> Hi everyone, i’m trying to create a cluster of 3 nodes with encrypted communication among the nodes. I have generated a pem certificate for each node and i’ve configured seed hosts and cluster initial master. This is elasticsearch.yml: cluster.name: “test-ansible-elastic-cluster” network.host: "0.0.0.0" discovery.zen.minimum\_master\_nodes: 1 discovery.seed\_hosts: - "hostname1.compute.amazonaws.com::9300" - "hostname2.compute.amazonaws.com::9300" - "hostname3.compute.amazonaws.com::9300" cl…
Can someone please help on this?
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### Author:  [@kris](https://forum.opensearch.org/u/kris)
#### Post date: [February 7, 2023, 12:02am UTC](https://forum.opensearch.org/t/cluster-formation-failure/2437/2 "2023-02-07T00:02:04Z")