# Removal of discovery.zen.minimum\_master\_nodes

**URL:** <https://discuss.elastic.co/t/removal-of-discovery-zen-minimum-master-nodes/179263>\
**Category:** Elasticsearch\
**Created:** [May 1, 2019, 10:11pm UTC](https://discuss.elastic.co/t/removal-of-discovery-zen-minimum-master-nodes/179263 "2019-05-01T22:11:02Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![sg.esearch](https://avatars.discourse-cdn.com/v4/letter/s/e8c25b/32.png) [@sg.esearch](https://discuss.elastic.co/u/sg.esearch)\
**Post date:** [May 1, 2019, 10:11pm UTC](https://discuss.elastic.co/t/removal-of-discovery-zen-minimum-master-nodes/179263/1 "2019-05-01T22:11:02Z")

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As described in [https://www.elastic.co/guide/en/elasticsearch/reference/current/breaking-changes-7.0.html#breaking\_70\_discovery\_changes](https://www.elastic.co/guide/en/elasticsearch/reference/current/breaking-changes-7.0.html#breaking_70_discovery_changes), **discovery.zen.minimum\_master\_nodes** option is ingored in 7.0 version.

But this setting was earlier used to avoid a split brain situation by setting to (1+(m/2)) where m is the number of master-eligible nodes in the cluster.

If this setting is now ignored, has ES become susceptible to split brain?  
Or internally, the above setting is being set to ((1+(m/2)) ?  
Some more documentation on the above link would have been very helpful.

Thanks  
SG

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<div class="post-metadata">

**Author:** ![jasontedor](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jasontedor/32/66992_2.png) [@jasontedor](https://discuss.elastic.co/u/jasontedor)\
**Post date:** [May 2, 2019, 1:46am UTC](https://discuss.elastic.co/t/removal-of-discovery-zen-minimum-master-nodes/179263/2 "2019-05-02T01:46:57Z")

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@sg.esearch Check out our [blog post](https://www.elastic.co/blog/a-new-era-for-cluster-coordination-in-elasticsearch) on this topic.

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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:** [May 30, 2019, 1:46am UTC](https://discuss.elastic.co/t/removal-of-discovery-zen-minimum-master-nodes/179263/3 "2019-05-30T01:46:59Z")

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