# Scaling Elastic Search

**URL:** <https://discuss.elastic.co/t/scaling-elastic-search/87601>\
**Category:** Elasticsearch\
**Created:** [May 30, 2017, 4:51pm UTC](https://discuss.elastic.co/t/scaling-elastic-search/87601 "2017-05-30T16:51:47Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![samdash](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/samdash/32/21628_2.png) [@samdash](https://discuss.elastic.co/u/samdash)\
**Post date:** [May 30, 2017, 4:51pm UTC](https://discuss.elastic.co/t/scaling-elastic-search/87601/1 "2017-05-30T16:51:47Z")

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Currently i have a 3 node cluster with all being master eligible , below is may configuration in my yaml.

**All 3 nodes with default 5 shards and 2 replica's for each shard.**  
node.master: true  
node.data : true

If I wanted to scale in future to have more nodes and want to  
Have dedicated master's ,How do I change [it.Is](http://it.Is) it as simple as changing the exiting 3 nodes configuration to Master only and rest of them to the data nodes ?

Sam

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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:** [June 27, 2017, 4:52pm UTC](https://discuss.elastic.co/t/scaling-elastic-search/87601/2 "2017-06-27T16:52:08Z")

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