# High cpu usage (90%-100%) **URL:** \ **Category:** Elasticsearch\ **Created:** [June 5, 2013, 12:43am UTC](https://discuss.elastic.co/t/high-cpu-usage-90-100/12267 "2013-06-05T00:43:52Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Han\_2](https://avatars.discourse-cdn.com/v4/letter/h/7bcc69/32.png) [@Han\_2](https://discuss.elastic.co/u/Han_2)\ **Post date:** [June 5, 2013, 12:43am UTC](https://discuss.elastic.co/t/high-cpu-usage-90-100/12267/1 "2013-06-05T00:43:52Z")
we are going live with elasticsearch and as soon as we put production load cpu spikes to 90-100%.. wondering whats causing the issue. here is cluster info: es version: 0.90.0 5 nodes each with following config: 64gb ram ES\_MIN\_MEM = ES\_MAX\_MEM and set to 32gb 24 core 3 indices 1. 5 shards, 4 Replicas 2. 5 shards, 4 Replicas 3. 2 shards, 4 replicas total documents 5 million, and the total size of the indices = 45GB attaching the the result of hotthreads command. would appreciate your help on this. Thanks. -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 2:32am UTC](https://discuss.elastic.co/t/high-cpu-usage-90-100/12267/2 "2017-07-06T02:32:57Z")