# Minimum Master Nodes Parameter Advice

**URL:** <https://discuss.elastic.co/t/minimum-master-nodes-parameter-advice/69062>\
**Category:** Elasticsearch\
**Created:** [December 14, 2016, 6:03pm UTC](https://discuss.elastic.co/t/minimum-master-nodes-parameter-advice/69062 "2016-12-14T18:03:06Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Kernel\_Panic](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kernel_panic/32/12294_2.png) [@Kernel\_Panic](https://discuss.elastic.co/u/Kernel_Panic)\
**Post date:** [December 14, 2016, 6:03pm UTC](https://discuss.elastic.co/t/minimum-master-nodes-parameter-advice/69062/1 "2016-12-14T18:03:06Z")

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Hi guys.

I'm configuring a 3 nodes cluster, to begin with I want all the nodes to process data, reading the doc I found that these values are default to true ( Master-eligible Node Data node and Ingest node ) so far so good, and I understand all three nodes will process the ingested data from logstash or directly from a beat.

Now I want to have some HA, with these three nodes should I set discovery.zen.minimum\_master\_nodes to 2 ? so that in case a node goes down or if I want to do some maintenance and need to stop one node the cluster is still active?

Thank you for your time and support  
Regards

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [December 14, 2016, 9:00pm UTC](https://discuss.elastic.co/t/minimum-master-nodes-parameter-advice/69062/2 "2016-12-14T21:00:37Z")

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Yes, `(Number of master eligible nodes / 2) + 1`.

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<div class="post-metadata">

**Author:** ![Kernel\_Panic](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kernel_panic/32/12294_2.png) [@Kernel\_Panic](https://discuss.elastic.co/u/Kernel_Panic)\
**Post date:** [December 15, 2016, 1:16pm UTC](https://discuss.elastic.co/t/minimum-master-nodes-parameter-advice/69062/3 "2016-12-15T13:16:09Z")

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Thank you! very kind of you.

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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 12, 2017, 1:16pm UTC](https://discuss.elastic.co/t/minimum-master-nodes-parameter-advice/69062/4 "2017-01-12T13:16:09Z")

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