# Dremio using low memory

**URL:** <https://community.dremio.com/t/dremio-using-low-memory/2607>\
**Category:** Uncategorized\
**Created:** [January 23, 2019, 8:07pm UTC](https://community.dremio.com/t/dremio-using-low-memory/2607 "2019-01-23T20:07:48Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Paulo\_Vasconcellos](https://sea2.discourse-cdn.com/flex020/user_avatar/community.dremio.com/paulo_vasconcellos/32/972_2.png) [@Paulo\_Vasconcellos](https://community.dremio.com/u/Paulo_Vasconcellos)\
**Post date:** [January 23, 2019, 8:07pm UTC](https://community.dremio.com/t/dremio-using-low-memory/2607/1 "2019-01-23T20:07:48Z")

</div>

During the execution of a query on Dremio, I’ve noticed that Dremio was using just 2GB of RAM from my executor node. After checking the [dremio-config documentation](https://docs.dremio.com/deployment/dremio-config.html), I opened the Dremio-env and this is my configuration:

`DREMIO_MAX_HEAP_MEMORY_SIZE_MB=4096`  
`DREMIO_MAX_DIRECT_MEMORY_SIZE_MB=16384`

My current executor node is a c5.2xlarge (quad-core, 16GB of RAM), while my coordinator is a c5.2xlarge. Does anybody have some ideia what might be going on here?

Thank you in advance

---

<div class="post-metadata">

**Author:** ![laurent](https://sea2.discourse-cdn.com/flex020/user_avatar/community.dremio.com/laurent/32/16_2.png) [@laurent](https://community.dremio.com/u/laurent)\
**Post date:** [January 23, 2019, 8:19pm UTC](https://community.dremio.com/t/dremio-using-low-memory/2607/2 "2019-01-23T20:19:06Z")

</div>

Those values are just limits on how much memory Dremio can use. Queries may require less memory than available, depending on their complexity, which is why Dremio might only be using 2GB of RAM even if configured to use more.