# Java 500+ % CPU high usage

**URL:** <https://discuss.elastic.co/t/java-500-cpu-high-usage/77456>\
**Category:** Elasticsearch\
**Created:** [March 6, 2017, 8:00am UTC](https://discuss.elastic.co/t/java-500-cpu-high-usage/77456 "2017-03-06T08:00:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mhalatuituia](https://avatars.discourse-cdn.com/v4/letter/m/8c91f0/32.png) [@mhalatuituia](https://discuss.elastic.co/u/mhalatuituia)\
**Post date:** [March 6, 2017, 8:00am UTC](https://discuss.elastic.co/t/java-500-cpu-high-usage/77456/1 "2017-03-06T08:00:42Z")

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can please someone shed some light on how to fix this issue as seems there will be no hardware enough for this .......  
i have this new HP-Prolian DL380 G9 with 16 CPU ans 16 GB memory. i have set ES\_HEAP\_SIZE to 8g on /etc/default/ES on my Ubuntu 16.04 but it seems useless as CPU is always more that 500 % . really appreciate any help ..

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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 3, 2017, 8:01am UTC](https://discuss.elastic.co/t/java-500-cpu-high-usage/77456/2 "2017-04-03T08:01:16Z")

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