# Elasticsearch Mapping Metafields \_ttl field

**URL:** <https://discuss.elastic.co/t/elasticsearch-mapping-metafields--ttl-field/42181>\
**Category:** Elasticsearch\
**Created:** [February 18, 2016, 7:13pm UTC](https://discuss.elastic.co/t/elasticsearch-mapping-metafields--ttl-field/42181 "2016-02-18T19:13:59Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![mlepage](https://avatars.discourse-cdn.com/v4/letter/m/bb73d2/32.png) [@mlepage](https://discuss.elastic.co/u/mlepage)\
**Post date:** [February 18, 2016, 7:13pm UTC](https://discuss.elastic.co/t/elasticsearch-mapping-metafields--ttl-field/42181/1 "2016-02-18T19:13:59Z")

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Hello!

Is the \_ttl field deprecate or not as announced on this page : [https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-ttl-field.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-ttl-field.html)

I much time are the data, requests, visualisations and dashboards saved on disk, are they saved on disk?

Cheers!

Maya

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [February 18, 2016, 8:35pm UTC](https://discuss.elastic.co/t/elasticsearch-mapping-metafields--ttl-field/42181/2 "2016-02-18T20:35:32Z")

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It's deprecated and will be removed.

> [@mlepage](#):
>
> I much time are the data, requests, visualisations and dashboards saved on disk, are they saved on disk?

I am not sure what you mean here.

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**Author:** ![mlepage](https://avatars.discourse-cdn.com/v4/letter/m/bb73d2/32.png) [@mlepage](https://discuss.elastic.co/u/mlepage)\
**Post date:** [February 18, 2016, 9:09pm UTC](https://discuss.elastic.co/t/elasticsearch-mapping-metafields--ttl-field/42181/3 "2016-02-18T21:09:57Z")

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Hello!  
Thank you for having answered rapidly.  
Concerning my second question, I will come back to you with a more precise question.  
Maya

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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 5, 2017, 11:15pm UTC](https://discuss.elastic.co/t/elasticsearch-mapping-metafields--ttl-field/42181/4 "2017-07-05T23:15:07Z")

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