# On-disk doc\_values question

**URL:** <https://discuss.elastic.co/t/on-disk-doc-values-question/55680>\
**Category:** Elasticsearch\
**Created:** [July 17, 2016, 1:36am UTC](https://discuss.elastic.co/t/on-disk-doc-values-question/55680 "2016-07-17T01:36:39Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Praveen\_Shilavantar](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/praveen_shilavantar/32/1619_2.png) [@Praveen\_Shilavantar](https://discuss.elastic.co/u/Praveen_Shilavantar)\
**Post date:** [July 17, 2016, 1:36am UTC](https://discuss.elastic.co/t/on-disk-doc-values-question/55680/1 "2016-07-17T01:36:39Z")

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I am using ES 2.3 version and below fields are not-analyzed.

Operator: {  
type: "string",  
index: "not\_analyzed"  
},  
Route: {  
type: "string",  
index: "not\_analyzed"  
},

why fielddata api is showing these fields are using heap.

**\_cat/fielddata?fields=\*&v**  
id host ip node total log\_component Operator Tail Route Fleet  
QLsdcLxGS-etcJs4hEzi2A 127.0.0.1 127.0.0.1 Nightwatch 124.9kb 3.8kb 11kb 39kb 60kb 10.8kb

and I have another field which is analyzed and but it's not shown in fielddata api above.

log\_detail: {  
type: "string",  
analyzer: "snowball"  
}

my assumption is on-disk doc\_values fielddata is not stored in memory.

---

<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:** [July 5, 2017, 10:35pm UTC](https://discuss.elastic.co/t/on-disk-doc-values-question/55680/2 "2017-07-05T22:35:02Z")

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