# What is the storage used in Elasticsearch?

**URL:** <https://discuss.elastic.co/t/what-is-the-storage-used-in-elasticsearch/4119>\
**Category:** Elasticsearch\
**Created:** [March 17, 2011, 9:18am UTC](https://discuss.elastic.co/t/what-is-the-storage-used-in-elasticsearch/4119 "2011-03-17T09:18:20Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Tanguy1](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tanguy1/32/1749_2.png) [@Tanguy1](https://discuss.elastic.co/u/Tanguy1)\
**Post date:** [March 17, 2011, 9:18am UTC](https://discuss.elastic.co/t/what-is-the-storage-used-in-elasticsearch/4119/1 "2011-03-17T09:18:20Z")

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Hi all,

First, thanks for this great tool, Elasticsearch :o)

I was wondering: what is the underlying JSON document database used in ES?  
Terrastore?

I am digging into the code, looking for Java classes in charge of the  
persistance. Can you point me some class name?

Thanks,

tlrx

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**Author:** ![kimchy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kimchy/32/44952_2.png) [@kimchy](https://discuss.elastic.co/u/kimchy)\
**Post date:** [March 17, 2011, 9:27am UTC](https://discuss.elastic.co/t/what-is-the-storage-used-in-elasticsearch/4119/2 "2011-03-17T09:27:53Z")

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elasticsearch stores the json content as a stored field in Lucene (document).  
On Thursday, March 17, 2011 at 11:18 AM, tlrx wrote:

> Hi all,
> 
> First, thanks for this great tool, Elasticsearch :o)
> 
> I was wondering: what is the underlying JSON document database used in ES? Terrastore?
> 
> I am digging into the code, looking for Java classes in charge of the persistance. Can you point me some class name?
> 
> Thanks,
> 
> tlrx

---

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**Author:** ![Tanguy1](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tanguy1/32/1749_2.png) [@Tanguy1](https://discuss.elastic.co/u/Tanguy1)\
**Post date:** [March 18, 2011, 1:31pm UTC](https://discuss.elastic.co/t/what-is-the-storage-used-in-elasticsearch/4119/3 "2011-03-18T13:31:57Z")

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Thanks

On 17 mar, 10:27, Shay Banon [shay.ba...@elasticsearch.com](mailto:shay.ba...@elasticsearch.com) wrote:

> elasticsearch stores the json content as a stored field in Lucene (document).
> 
> On Thursday, March 17, 2011 at 11:18 AM, tlrx wrote:
> 
> > Hi all,
> 
> > First, thanks for this great tool, Elasticsearch :o)
> 
> > I was wondering: what is the underlying JSON document database used in ES? Terrastore?
> 
> > I am digging into the code, looking for Java classes in charge of the persistance. Can you point me some class name?
> 
> > Thanks,
> 
> > tlrx

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 4:09am UTC](https://discuss.elastic.co/t/what-is-the-storage-used-in-elasticsearch/4119/4 "2017-07-06T04:09:39Z")

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