# One master for multiple clusters

**URL:** <https://discuss.elastic.co/t/one-master-for-multiple-clusters/155012>\
**Category:** Elasticsearch\
**Created:** [November 1, 2018, 12:40pm UTC](https://discuss.elastic.co/t/one-master-for-multiple-clusters/155012 "2018-11-01T12:40:27Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![wheelq](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/wheelq/32/35893_2.png) [@wheelq](https://discuss.elastic.co/u/wheelq)\
**Post date:** [November 1, 2018, 12:40pm UTC](https://discuss.elastic.co/t/one-master-for-multiple-clusters/155012/1 "2018-11-01T12:40:27Z")

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Can master server (or 2, 3) hanble more than one cluster?  
I am not asking whether it is advisable. Just if it's possible, can it handle such architecture?  
Of course I will test this, but this will take time as I have to clone current env

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**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [November 1, 2018, 12:41pm UTC](https://discuss.elastic.co/t/one-master-for-multiple-clusters/155012/2 "2018-11-01T12:41:39Z")

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No, Every master-eligible node is part of a single cluster.

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**Author:** ![wheelq](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/wheelq/32/35893_2.png) [@wheelq](https://discuss.elastic.co/u/wheelq)\
**Post date:** [November 1, 2018, 12:47pm UTC](https://discuss.elastic.co/t/one-master-for-multiple-clusters/155012/3 "2018-11-01T12:47:41Z")

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Ah, sorry, now I can see I have to define cluster.name 😉

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<div class="post-metadata">

**Author:** ![wheelq](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/wheelq/32/35893_2.png) [@wheelq](https://discuss.elastic.co/u/wheelq)\
**Post date:** [November 1, 2018, 12:48pm UTC](https://discuss.elastic.co/t/one-master-for-multiple-clusters/155012/4 "2018-11-01T12:48:04Z")

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still, nice option to have 😉  
I would run two master nodes on each of the master servers, but I have to check mem/cpu usage by single master node first.

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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:** [November 29, 2018, 12:48pm UTC](https://discuss.elastic.co/t/one-master-for-multiple-clusters/155012/5 "2018-11-29T12:48:12Z")

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