# Trying to identify high heap memory usage (v1.7.5)

**URL:** <https://discuss.elastic.co/t/trying-to-identify-high-heap-memory-usage-v1-7-5/81173>\
**Category:** Elasticsearch\
**Created:** [April 4, 2017, 3:58pm UTC](https://discuss.elastic.co/t/trying-to-identify-high-heap-memory-usage-v1-7-5/81173 "2017-04-04T15:58:53Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![darinhoward](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/darinhoward/32/14033_2.png) [@darinhoward](https://discuss.elastic.co/u/darinhoward)\
**Post date:** [April 4, 2017, 3:58pm UTC](https://discuss.elastic.co/t/trying-to-identify-high-heap-memory-usage-v1-7-5/81173/1 "2017-04-04T15:58:53Z")

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I have 14gb allocated to elasticsearch v1.7.5.

Heap Used is at 11.7gb, I cannot find what is using up all this memory w/ the nodes/stats below.

Here are the memory related items I can identify, which account for ~4gb, leaving 7gb unaccounted.

Filter Cache Memory: 35mb  
Field Data Memory: 20mb  
Segment Memory: 2.7gb  
Index Writer Max Memory: 1.4gb

Any ideas on how to identify what is taking up the heap space?

Node Stats : [https://gist.github.com/darinhoward/8ee35cc218f11cd4a9326920f7c857fc](https://gist.github.com/darinhoward/8ee35cc218f11cd4a9326920f7c857fc)

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**Author:** ![darinhoward](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/darinhoward/32/14033_2.png) [@darinhoward](https://discuss.elastic.co/u/darinhoward)\
**Post date:** [April 6, 2017, 4:22pm UTC](https://discuss.elastic.co/t/trying-to-identify-high-heap-memory-usage-v1-7-5/81173/2 "2017-04-06T16:22:52Z")

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Similar to this question - [Where is my heap going?](https://discuss.elastic.co/t/where-is-my-heap-going/74077) that doesn't have a proper resolution. The goal is to find a way to spec out memory requirements for a cluster.

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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:** [May 4, 2017, 4:22pm UTC](https://discuss.elastic.co/t/trying-to-identify-high-heap-memory-usage-v1-7-5/81173/3 "2017-05-04T16:22:55Z")

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