# High availablity and partial network partitions

**URL:** <https://discuss.elastic.co/t/high-availablity-and-partial-network-partitions/144480>\
**Category:** Elasticsearch\
**Created:** [August 15, 2018, 9:31am UTC](https://discuss.elastic.co/t/high-availablity-and-partial-network-partitions/144480 "2018-08-15T09:31:52Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![stever](https://avatars.discourse-cdn.com/v4/letter/s/71e660/32.png) [@stever](https://discuss.elastic.co/u/stever)\
**Post date:** [August 15, 2018, 9:31am UTC](https://discuss.elastic.co/t/high-availablity-and-partial-network-partitions/144480/1 "2018-08-15T09:31:52Z")

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Consider a cluster of 3 nodes in 3 availability zones. One node in each zone.

zen.minimum\_master\_nodes is set to 2

All nodes are master eligible.

What will happen, if a partial partition occures, that will make node 1 and 2 see node 3, but not each other.

So:  
node 1 can see node 3  
node 2 can see node 3  
node 1 cannot see node 2

How will the cluster be formed in that case ? Will it remain available ?

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [September 12, 2018, 9:37am UTC](https://discuss.elastic.co/t/high-availablity-and-partial-network-partitions/144480/2 "2018-09-12T09:37:37Z")

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