# Change Mapping of Existing Data failed

**URL:** <https://discuss.elastic.co/t/change-mapping-of-existing-data-failed/47613>\
**Category:** Elasticsearch\
**Created:** [April 18, 2016, 6:44am UTC](https://discuss.elastic.co/t/change-mapping-of-existing-data-failed/47613 "2016-04-18T06:44:46Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![tommoholmes10](https://avatars.discourse-cdn.com/v4/letter/t/ed8c4c/32.png) [@tommoholmes10](https://discuss.elastic.co/u/tommoholmes10)\
**Post date:** [April 18, 2016, 6:44am UTC](https://discuss.elastic.co/t/change-mapping-of-existing-data-failed/47613/1 "2016-04-18T06:44:46Z")

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I have changing my index use  
curl -XPUT '[http://localhost:9200/index/\_mapping/product](http://localhost:9200/index/_mapping/product)' -d '  
{  
"properties": {  
"imagecolor": {  
"type": "string",  
"null\_value": "_null_"  
}  
}  
}'  
I check use curl -XGET '[http://localhost:9200/index/\_mapping/product?pretty](http://localhost:9200/index/_mapping/product?pretty)' my mapping succes but when I search my mapping not exist  
My elasticsearch 2.3.1

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**Author:** ![jpountz](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jpountz/32/45836_2.png) [@jpountz](https://discuss.elastic.co/u/jpountz)\
**Post date:** [April 18, 2016, 9:24am UTC](https://discuss.elastic.co/t/change-mapping-of-existing-data-failed/47613/2 "2016-04-18T09:24:50Z")

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> [@tommoholmes10](#):
>
> when I search my mapping not exist

What does it mean?

Can you provide us with a script that reproduces the issue?

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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:** [July 5, 2017, 10:58pm UTC](https://discuss.elastic.co/t/change-mapping-of-existing-data-failed/47613/3 "2017-07-05T22:58:33Z")

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