# ES1.7.5 - Help with multiple ES instances joined by tribe: publish host settings?

**URL:** <https://discuss.elastic.co/t/es1-7-5-help-with-multiple-es-instances-joined-by-tribe-publish-host-settings/41391>\
**Category:** Elasticsearch\
**Created:** [February 10, 2016, 3:44pm UTC](https://discuss.elastic.co/t/es1-7-5-help-with-multiple-es-instances-joined-by-tribe-publish-host-settings/41391 "2016-02-10T15:44:25Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![unknownunknown](https://avatars.discourse-cdn.com/v4/letter/u/4da419/32.png) [@unknownunknown](https://discuss.elastic.co/u/unknownunknown)\
**Post date:** [February 10, 2016, 3:44pm UTC](https://discuss.elastic.co/t/es1-7-5-help-with-multiple-es-instances-joined-by-tribe-publish-host-settings/41391/1 "2016-02-10T15:44:25Z")

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I'm trying to join multiple local clusters together using a tribe. I'd appreciate any help you can offer!

Here's the setup:

- Three physical hosts -- all running ES 1.7.5
- Two independent clusters, each running two instances of elasticsearch on the same host (for a total of 4 instances)  
Each one only talks to itsself and serves requests over an nginx server
- One tribe node intended to join the two independent clusters together.

"Visually"

[C1] : [I0:master] \<-\> [I1:data]  
[C2] : [I0:master] \<-\> [I1:data]  
[C3] : TRIBE \<-\> { [C1] [C2] }

The problem:  
My publish host defaults to localhost for the clusters, as it is not communicating to other machines. When I configure the tribe node, however, it needs to be able to update state on that node. But I've been reading that additional publish\_host settings are ignored. If I specify the tribe node as the publish host, the local instances of each local cluster no longer communicate with each other.

How can I enable local communication between ES instances (needed to make use of memory) and at the same time communicate with the tribe?

Thank you for your ideas.

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**Author:** ![unknownunknown](https://avatars.discourse-cdn.com/v4/letter/u/4da419/32.png) [@unknownunknown](https://discuss.elastic.co/u/unknownunknown)\
**Post date:** [February 11, 2016, 5:18pm UTC](https://discuss.elastic.co/t/es1-7-5-help-with-multiple-es-instances-joined-by-tribe-publish-host-settings/41391/2 "2016-02-11T17:18:18Z")

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The best solution a colleague has proposed so far here is to use non-local IPs for all communication, including between multiple instances on the same host. While I think this works, there is a security implications (sure, we can throw up a firewall, but why listen at all?) of using an external IP when it isn't needed.

Does anyone have a better idea here?

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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:** [July 5, 2017, 11:17pm UTC](https://discuss.elastic.co/t/es1-7-5-help-with-multiple-es-instances-joined-by-tribe-publish-host-settings/41391/3 "2017-07-05T23:17:04Z")

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Closed on July 5, 2017, 11:17pm UTC