# One Node Cluster Performance Problem

**URL:** <https://discuss.elastic.co/t/one-node-cluster-performance-problem/90603>\
**Category:** Elasticsearch\
**Created:** [June 23, 2017, 9:10am UTC](https://discuss.elastic.co/t/one-node-cluster-performance-problem/90603 "2017-06-23T09:10:51Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![blanks](https://avatars.discourse-cdn.com/v4/letter/b/8e8cbc/32.png) [@blanks](https://discuss.elastic.co/u/blanks)\
**Post date:** [June 23, 2017, 9:10am UTC](https://discuss.elastic.co/t/one-node-cluster-performance-problem/90603/1 "2017-06-23T09:10:51Z")

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Hi,

I analyze IIS logs. Currently i have one node with an i7-4770K and 16GB Ram. Elasticsearch gets 8 GB Heap.

I have a monthly index and one shard without replicas.  
Size of the indices are: 40-60 Million Documents and 15-23 per index.

I get 100% CPU utilisation and regular timeouts at visualizations etc. Is this simply too much for one node with these specs to handle ?

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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:** [July 21, 2017, 9:10am UTC](https://discuss.elastic.co/t/one-node-cluster-performance-problem/90603/2 "2017-07-21T09:10:53Z")

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