# Elastic thinks that it uses all RAM

**URL:** https://discuss.elastic.co/t/elastic-thinks-that-it-uses-all-ram/258688
**Category:** Elasticsearch
**Created:** [December 15, 2020, 9:37am UTC](https://discuss.elastic.co/t/elastic-thinks-that-it-uses-all-ram/258688 "2020-12-15T09:37:21Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![ThreatInter](https://avatars.discourse-cdn.com/v4/letter/t/49beb7/32.png) [@ThreatInter](https://discuss.elastic.co/u/ThreatInter)
#### Post date: [December 15, 2020, 9:37am UTC](https://discuss.elastic.co/t/elastic-thinks-that-it-uses-all-ram/258688/1 "2020-12-15T09:37:22Z")

</div>

Hello, I noticed one thing about our cluster. When I made curl request (curl -XGET '[http://h1-es01:9200/\_nodes/stats/os?pretty](http://h1-es01:9200/_nodes/stats/os?pretty)') I saw this:  
h1-es01

```auto
        "mem" : {
          "total_in_bytes" : 134885113856,
          "free_in_bytes" : 7174373376,
          "used_in_bytes" : 127710740480,
          "free_percent" : 5,
          "used_percent" : 95
        },

```

h1-es02

```auto
        "mem" : {
          "total_in_bytes" : 134885163008,
          "free_in_bytes" : 485310464,
          "used_in_bytes" : 134399852544,
          "free_percent" : 0,
          "used_percent" : 100
        },

```

h1-es03

```auto
        "mem" : {
          "total_in_bytes" : 134885113856,
          "free_in_bytes" : 8599916544,
          "used_in_bytes" : 126285197312,
          "free_percent" : 6,
          "used_percent" : 94
        },

```

same in elasticvue:

 ![изображение](https://us1.discourse-cdn.com/elastic/original/3X/4/0/401ba115cb8b224150e6ac99f8f4885dd5cdf593.png)

But if I use htop it shows only 42 gb used. How it may be and which bad things can happen as a result of this?

---

<div class="post-metadata">

### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [January 12, 2021, 9:37am UTC](https://discuss.elastic.co/t/elastic-thinks-that-it-uses-all-ram/258688/2 "2021-01-12T09:37:24Z")

</div>

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