# Why this large differences

**URL:** <https://discuss.elastic.co/t/why-this-large-differences/160411>\
**Category:** Elasticsearch\
**Created:** [December 11, 2018, 4:26pm UTC](https://discuss.elastic.co/t/why-this-large-differences/160411 "2018-12-11T16:26:22Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![jacobot](https://avatars.discourse-cdn.com/v4/letter/j/4491bb/32.png) [@jacobot](https://discuss.elastic.co/u/jacobot)\
**Post date:** [December 11, 2018, 4:26pm UTC](https://discuss.elastic.co/t/why-this-large-differences/160411/1 "2018-12-11T16:26:22Z")

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\*\* Situation \*\*

_Current_

I issued this

`GET /_cat/allocation?v&h=disk.indices,disk.avail,disk.used,disk.total,disk.percent`

I get

```auto
disk.indices disk.avail disk.used disk.total disk.percent
        12gb 7.5gb 42.3gb 49.9gb 84

```

We are inserting 1000-2000 of documents per second for a total size of 16Gb per day ,(just to give you an idea),

We roll over indices at 500mb sizes

```auto
{ 
  "conditions": {
       "max_age": "2h", 
       "max_size": "524288000b"
   } 
}

```

We drop oldest indices if the 10Gb limit is reached

We have a problem that if we allow the index data to grow to 20G (we have 50Gdisk after all) it will hit the 85% threshold

Doesn elastic flush files that are unused?

---

<div class="post-metadata">

**Author:** ![s1monw](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/s1monw/32/3637_2.png) [@s1monw](https://discuss.elastic.co/u/s1monw)\
**Post date:** [December 14, 2018, 9:31am UTC](https://discuss.elastic.co/t/why-this-large-differences/160411/2 "2018-12-14T09:31:14Z")

</div>

I am not sure I follow what your problem is? What do you mean by flush files that are unused?

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<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 11, 2019, 9:43am UTC](https://discuss.elastic.co/t/why-this-large-differences/160411/3 "2019-01-11T09:43:09Z")

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