# Master node resource requirement

**URL:** <https://discuss.elastic.co/t/master-node-resource-requirement/84609>\
**Category:** Elasticsearch\
**Created:** [May 4, 2017, 6:24pm UTC](https://discuss.elastic.co/t/master-node-resource-requirement/84609 "2017-05-04T18:24:48Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![mruthyu](https://avatars.discourse-cdn.com/v4/letter/m/bb73d2/32.png) [@mruthyu](https://discuss.elastic.co/u/mruthyu)\
**Post date:** [May 4, 2017, 6:24pm UTC](https://discuss.elastic.co/t/master-node-resource-requirement/84609/1 "2017-05-04T18:24:48Z")

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It is understood that Master node resource specification is lesser that the of the data nodes. Wanted to know how many cpu cores, Memory and Disc space a typical Master node can have, considering 3 dedicated master eligible nodes in an elasticsearch cluster.

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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:** [May 4, 2017, 6:37pm UTC](https://discuss.elastic.co/t/master-node-resource-requirement/84609/2 "2017-05-04T18:37:21Z")

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Dedicated master nodes need persistent storage, but not a lot of it. 1-2 CPU cores and 2-4GB RAM is often sufficient for smaller deployments. As dedicated master nodes do not store data you can also set the heap to a higher percentage (75%-80%) of total RAM that is recommended for data nodes.

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**Author:** ![mruthyu](https://avatars.discourse-cdn.com/v4/letter/m/bb73d2/32.png) [@mruthyu](https://discuss.elastic.co/u/mruthyu)\
**Post date:** [May 4, 2017, 6:41pm UTC](https://discuss.elastic.co/t/master-node-resource-requirement/84609/3 "2017-05-04T18:41:18Z")

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We have around 4,5TB data with hot and warm node architecture and coordinating nodes.

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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:** [June 1, 2017, 6:46pm UTC](https://discuss.elastic.co/t/master-node-resource-requirement/84609/4 "2017-06-01T18:46:15Z")

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