# Safest path from 1 to 3 Master nodes

**URL:** <https://discuss.elastic.co/t/safest-path-from-1-to-3-master-nodes/111457>\
**Category:** Elasticsearch\
**Created:** [December 12, 2017, 11:20pm UTC](https://discuss.elastic.co/t/safest-path-from-1-to-3-master-nodes/111457 "2017-12-12T23:20:07Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![DaveM](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davem/32/103129_2.png) [@DaveM](https://discuss.elastic.co/u/DaveM)\
**Post date:** [December 12, 2017, 11:20pm UTC](https://discuss.elastic.co/t/safest-path-from-1-to-3-master-nodes/111457/1 "2017-12-12T23:20:07Z")

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We currently have a cluster with 1 master node and 10 data nodes. We're planning to add 2 more masters. I want to avoid split brain when adding the new masters to the cluster. What is the best way to add them in this situation?

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**Author:** ![mujtabahussain](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mujtabahussain/32/17514_2.png) [@mujtabahussain](https://discuss.elastic.co/u/mujtabahussain)\
**Post date:** [December 12, 2017, 11:36pm UTC](https://discuss.elastic.co/t/safest-path-from-1-to-3-master-nodes/111457/2 "2017-12-12T23:36:12Z")

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I recommend reading the below docs if you haven't already 🙂

- [Master election](https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-discovery-zen.html#master-election)
- [Minimum master nodes](https://www.elastic.co/guide/en/elasticsearch/reference/current/important-settings.html#minimum_master_nodes)

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<div class="post-metadata">

**Author:** ![DaveM](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davem/32/103129_2.png) [@DaveM](https://discuss.elastic.co/u/DaveM)\
**Post date:** [December 12, 2017, 11:37pm UTC](https://discuss.elastic.co/t/safest-path-from-1-to-3-master-nodes/111457/3 "2017-12-12T23:37:48Z")

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Thanks, I'll check those out.

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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:** [January 9, 2018, 11:37pm UTC](https://discuss.elastic.co/t/safest-path-from-1-to-3-master-nodes/111457/4 "2018-01-09T23:37:51Z")

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