# Are TransportClients Aware of each other?

**URL:** <https://discuss.elastic.co/t/are-transportclients-aware-of-each-other/10400>\
**Category:** Elasticsearch\
**Created:** [January 17, 2013, 9:36pm UTC](https://discuss.elastic.co/t/are-transportclients-aware-of-each-other/10400 "2013-01-17T21:36:47Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Andy\_3](https://avatars.discourse-cdn.com/v4/letter/a/c57346/32.png) [@Andy\_3](https://discuss.elastic.co/u/Andy_3)\
**Post date:** [January 17, 2013, 9:36pm UTC](https://discuss.elastic.co/t/are-transportclients-aware-of-each-other/10400/1 "2013-01-17T21:36:47Z")

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I think the answer is no, just confirming.

I planning to have a ElasticSearch cluster running, and TransportClients  
hitting it from different DMZ's, the TransportClients will not have the  
ability to talk to each other, but all the TransportsClients can talk to  
all the ElasticSearch nodes. I just want to confirm, there is no reason  
TransportClients would talk with each other?

Many thanks.

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**Author:** ![jprante](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jprante/32/44941_2.png) [@jprante](https://discuss.elastic.co/u/jprante)\
**Post date:** [January 17, 2013, 11:42pm UTC](https://discuss.elastic.co/t/are-transportclients-aware-of-each-other/10400/2 "2013-01-17T23:42:40Z")

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Yes, client nodes are isolated from the rest of the cluster by design. The  
cluster master node fences them out in the discovery, so they can't  
interfere with the cluster node states, shard allocation and routing  
algorithm, and the like.

Best regards,

Jörg

On Thursday, January 17, 2013 10:36:47 PM UTC+1, Andy wrote:

> I think the answer is no, just confirming.
> 
> I planning to have a Elasticsearch cluster running, and TransportClients  
> hitting it from different DMZ's, the TransportClients will not have the  
> ability to talk to each other, but all the TransportsClients can talk to  
> all the Elasticsearch nodes. I just want to confirm, there is no reason  
> TransportClients would talk with each other?
> 
> Many thanks.

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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 6, 2017, 2:55am UTC](https://discuss.elastic.co/t/are-transportclients-aware-of-each-other/10400/3 "2017-07-06T02:55:50Z")

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