# 3 node cluster failure

**URL:** <https://discuss.elastic.co/t/3-node-cluster-failure/244533>\
**Category:** Elasticsearch\
**Created:** [August 11, 2020, 10:29am UTC](https://discuss.elastic.co/t/3-node-cluster-failure/244533 "2020-08-11T10:29:08Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![Steve\_Mushero](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/steve_mushero/32/22441_2.png) [@Steve\_Mushero](https://discuss.elastic.co/u/Steve_Mushero)\
**Post date:** [August 11, 2020, 10:55am UTC](https://discuss.elastic.co/t/3-node-cluster-failure/244533/3 "2020-08-11T10:55:08Z")

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Welcome to the forum. Questions:

- Shouldn't the seed hosts be port 9300? You have 9200, but shouldn't put a port here unless it's unusual; port 9200 is for REST API operations, but the cluster internally works on the transport interface, usually port 9300 - remove your :9200 and I bet it'll be happy.

Minor things:

- Are you sure you are using the JVM 11, not the JVM bundled with V7?
- What does 'in public' mean on a firewall, as public & elasticsearch don't go well together, security wise.
- Why set network.publish\_host as it'll use network.host?

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_[View the full topic](https://discuss.elastic.co/t/3-node-cluster-failure/244533)._