# 7 Node Cluster with 3 dedicated master and 4 data nodes

**URL:** <https://discuss.elastic.co/t/7-node-cluster-with-3-dedicated-master-and-4-data-nodes/103060>\
**Category:** Elasticsearch\
**Created:** [October 6, 2017, 6:39pm UTC](https://discuss.elastic.co/t/7-node-cluster-with-3-dedicated-master-and-4-data-nodes/103060 "2017-10-06T18:39:34Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Oferkes](https://avatars.discourse-cdn.com/v4/letter/o/9fc29f/32.png) [@Oferkes](https://discuss.elastic.co/u/Oferkes)\
**Post date:** [October 6, 2017, 8:22pm UTC](https://discuss.elastic.co/t/7-node-cluster-with-3-dedicated-master-and-4-data-nodes/103060/2 "2017-10-06T20:22:31Z")

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you should experiment, but still, try to get as close as you can to the recommended settings: balf the ram to eladtic, and no more than 30.5GB. as for the size of the indices you have, 5\*1 sounds too much for the overall size of data you have. try to stick to 30gb - 50gb per shard, do the math accordingly.

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