# Elastic Search heap memory usage

**URL:** <https://discuss.elastic.co/t/elastic-search-heap-memory-usage/62469>\
**Category:** Elasticsearch\
**Created:** [October 7, 2016, 8:28am UTC](https://discuss.elastic.co/t/elastic-search-heap-memory-usage/62469 "2016-10-07T08:28:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![rgr78](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rgr78/32/30890_2.png) [@rgr78](https://discuss.elastic.co/u/rgr78)\
**Post date:** [October 7, 2016, 8:28am UTC](https://discuss.elastic.co/t/elastic-search-heap-memory-usage/62469/1 "2016-10-07T08:28:00Z")

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Hi. We've been searching information about what takes up heap memory. From our observations, it seems to be (approximately) the sum of:

- query\_cache
- fielddata
- segments.memory
- segments.terms\_memory
- segments.stored\_fields\_memory
- segments.norms\_memory
- segments.doc\_values\_memory
- segments.index\_writer\_memory
- translog

Obtained from \_nodes/stats/indices?human&pretty

Is this information correct?

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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:** [July 5, 2017, 10:14pm UTC](https://discuss.elastic.co/t/elastic-search-heap-memory-usage/62469/2 "2017-07-05T22:14:06Z")

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