# High cpu load on only one node

**URL:** https://discuss.elastic.co/t/high-cpu-load-on-only-one-node/109090
**Category:** Elasticsearch
**Created:** [November 25, 2017, 1:56am UTC](https://discuss.elastic.co/t/high-cpu-load-on-only-one-node/109090 "2017-11-25T01:56:55Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![xlc](https://avatars.discourse-cdn.com/v4/letter/x/13edae/32.png) [@xlc](https://discuss.elastic.co/u/xlc)
#### Post date: [November 25, 2017, 1:56am UTC](https://discuss.elastic.co/t/high-cpu-load-on-only-one-node/109090/1 "2017-11-25T01:56:55Z")

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Hi,all  
I have a cluster with 21 nodes,es5.3.0(31.9G heapsize).Only one has high cpu load around 90%,and load average about 30 while the others are 10% 5. The nodes are all using ssd data store,and gc well.  
Any ideas for this issue?

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### Author: ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [November 25, 2017, 4:08am UTC](https://discuss.elastic.co/t/high-cpu-load-on-only-one-node/109090/2 "2017-11-25T04:08:39Z")

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May be you are sending all your requests to the same node?

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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: [December 23, 2017, 4:08am UTC](https://discuss.elastic.co/t/high-cpu-load-on-only-one-node/109090/3 "2017-12-23T04:08:43Z")

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