# ES not using all the memory assigned to it

**URL:** <https://discuss.elastic.co/t/es-not-using-all-the-memory-assigned-to-it/39321>\
**Category:** Elasticsearch\
**Created:** [January 15, 2016, 12:06pm UTC](https://discuss.elastic.co/t/es-not-using-all-the-memory-assigned-to-it/39321 "2016-01-15T12:06:32Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![jasontedor](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jasontedor/32/66992_2.png) [@jasontedor](https://discuss.elastic.co/u/jasontedor)\
**Post date:** [January 15, 2016, 4:23pm UTC](https://discuss.elastic.co/t/es-not-using-all-the-memory-assigned-to-it/39321/4 "2016-01-15T16:23:27Z")

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> [@Sheker](#):
>
> Hi, thanks for answering but I realized I was wrong It just took a while until it started using all the memory I gave itthanks again

Right. For future reference, you can check the allocated heap size of an Elasticsearch server through a variety of methods that I've outlined [previously](https://discuss.elastic.co/t/how-to-check-es-heap-size/36613/6). Note that since you're on Elasticsearch 1.6 I am not sure if all of them will work, but at least some of them will. 🙂

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