# Understand CPU based auto scaling of ElasticSearch cluster

**URL:** <https://discuss.elastic.co/t/understand-cpu-based-auto-scaling-of-elasticsearch-cluster/171347>\
**Category:** Elasticsearch\
**Tags:** elastic-stack-monitoring, elastic-stack-alerting\
**Created:** [March 7, 2019, 4:15pm UTC](https://discuss.elastic.co/t/understand-cpu-based-auto-scaling-of-elasticsearch-cluster/171347 "2019-03-07T16:15:13Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Priti\_Gangrade](https://avatars.discourse-cdn.com/v4/letter/p/9f8e36/32.png) [@Priti\_Gangrade](https://discuss.elastic.co/u/Priti_Gangrade)\
**Post date:** [March 7, 2019, 4:15pm UTC](https://discuss.elastic.co/t/understand-cpu-based-auto-scaling-of-elasticsearch-cluster/171347/1 "2019-03-07T16:15:13Z")

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**Assumption:** We are able to predict traffic pattern - increase/decrease number of users hitting our Search system.  
**Usecase:** CPU based autoscaling when traffic increases  
**With SolrCloud:** With SolrCloud sharded cluster, we are able to achieve CPU based autoscaling. Add more nodes to each shard, for eg: we add 2 nodes/replicas to each of 4 shards. This approach is working well for us so far. We are also able take down the extra nodes when traffic is lower.  
**With ElasticSearch:** Does Elastic Search support this kind of auto scaling? Can I get more information on this?  
Thanks,  
-Priti Gangrade

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**Author:** ![Mike\_Place](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mike_place/32/39555_2.png) [@Mike\_Place](https://discuss.elastic.co/u/Mike_Place)\
**Post date:** [March 7, 2019, 4:18pm UTC](https://discuss.elastic.co/t/understand-cpu-based-auto-scaling-of-elasticsearch-cluster/171347/2 "2019-03-07T16:18:38Z")

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There is no native support for autoscaling in Elasticsearch. The Elastic Cloud service makes it easy to scale up and down but not automatically. The reasoning is outlined here:

[https://www.elastic.co/guide/en/cloud/current/ec-faq.html#faq-autoscale](https://www.elastic.co/guide/en/cloud/current/ec-faq.html#faq-autoscale)

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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:** [April 4, 2019, 4:18pm UTC](https://discuss.elastic.co/t/understand-cpu-based-auto-scaling-of-elasticsearch-cluster/171347/3 "2019-04-04T16:18:38Z")

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