# How to specify mapping with both dynamic template and \_size enabled
**URL:** https://discuss.elastic.co/t/how-to-specify-mapping-with-both-dynamic-template-and-size-enabled/231443
**Category:** Elasticsearch
**Created:** [May 7, 2020, 3:36am UTC](https://discuss.elastic.co/t/how-to-specify-mapping-with-both-dynamic-template-and-size-enabled/231443 "2020-05-07T03:36:46Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@plm](https://discuss.elastic.co/u/plm)
#### Post date: [May 7, 2020, 3:36am UTC](https://discuss.elastic.co/t/how-to-specify-mapping-with-both-dynamic-template-and-size-enabled/231443/1 "2020-05-07T03:36:46Z")
Hi,
I am trying to create an index template that includes both dynamic templates as well as enabling the \_size field. Here is what I am passing to the High Level Rest API
```auto
PutIndexTemplateRequest templateIndexRequest =
new PutIndexTemplateRequest("MyIndex*");
templateIndexRequest.mapping(, XContentType.JSON);
{
"dynamic_templates":
[
{
"pk_variable": {
"match_mapping_type": "*",
"match": "*_pkVarValue",
"mapping": {
"type": "text",
"fields": {
"raw": { "type": "keyword" }
}
}
}
}
],
"_size": { "enabled" : true }
}
```
This gives me the following error:
```auto
ElasticsearchStatusException[Elasticsearch exception [type=mapper_parsing_exception, reason=Failed to parse mapping [_doc]: Root mapping definition has unsupported parameters: [_size : {enabled=true}]]]; nested: ElasticsearchException[Elasticsearch exception [type=mapper_parsing_exception, reason=Root mapping definition has unsupported parameters: [_size : {enabled=true}]]];
at org.elasticsearch.rest.BytesRestResponse.errorFromXContent(BytesRestResponse.java:177)
at org.elasticsearch.client.RestHighLevelClient.parseEntity(RestHighLevelClient.java:1793)
at org.elasticsearch.client.RestHighLevelClient.parseResponseException(RestHighLevelClient.java:1770)
at org.elasticsearch.client.RestHighLevelClient.internalPerformRequest(RestHighLevelClient.java:1527)
at org.elasticsearch.client.RestHighLevelClient.performRequest(RestHighLevelClient.java:1484)
at org.elasticsearch.client.RestHighLevelClient.performRequestAndParseEntity(RestHighLevelClient.java:1454)
at org.elasticsearch.client.IndicesClient.putTemplate(IndicesClient.java:1163)
```
Now if I remove:
```auto
"_size": { "enabled" : true }
```
Everything works fine. I have tried many different syntax, but don't seem to find one that works.
Any help appreciated.
Thanks,
Philippe
---
### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [May 7, 2020, 5:14am UTC](https://discuss.elastic.co/t/how-to-specify-mapping-with-both-dynamic-template-and-size-enabled/231443/2 "2020-05-07T05:14:00Z")
I think the \_size field requires the [mapper size plugin](https://www.elastic.co/guide/en/elasticsearch/plugins/current/mapper-size.html) to be installed.
---
### Author:  [@plm](https://discuss.elastic.co/u/plm)
#### Post date: [May 8, 2020, 8:20pm UTC](https://discuss.elastic.co/t/how-to-specify-mapping-with-both-dynamic-template-and-size-enabled/231443/3 "2020-05-08T20:20:09Z")
Thanks for pointing this out. This got me further and I can get the \_size field enabled however I can't get it to be stored and show up in the document. I modified my mapping to:
```auto
{
"dynamic_templates":
[
{
"pk_variable": {
"match_mapping_type": "*",
"match": "*_pkVarValue",
"mapping": {
"type": "text",
"fields": {
"raw": { "type": "keyword" }
}
}
}
}
],
"_size": { "enabled" : true,
"store": "yes" }
}
```
but then I get the following exception:
```auto
Elasticsearch exception [type=mapper_parsing_exception, reason=Failed to parse mapping [_doc]: Mapping definition for [_size] has unsupported parameters: [store : yes]]:\norg.elasticsearch.ElasticsearchStatusException: Elasticsearch exception [type=mapper_parsing_exception, reason=Failed to parse mapping [_doc]: Mapping definition for [_size] has unsupported parameters: [store : yes]]\n\tat org.elasticsearch.rest.BytesRestResponse.errorFromXContent(BytesRestResponse.java:177)\n\tat org.elasticsearch.client.RestHighLevelClient$$Lambda$832.00000000604AE0D0.apply(Unknown Source)\n\tat org.elasticsearch.client.RestHighLevelClient.parseEntity(RestHighLevelClient.java:1793)
```
Not if I remove the "store" field everything works, but the \_size field doesn't show up in my doc. I can still sort on it though.
I followed the info from this link:
>
>
> Data can be derived from the size of each document indexed. The \_size field mapping can be used to enable indexing,...
I also tried with "store": true but I got the same result.
Thanks
Philippe
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [June 5, 2020, 8:20pm UTC](https://discuss.elastic.co/t/how-to-specify-mapping-with-both-dynamic-template-and-size-enabled/231443/4 "2020-06-05T20:20:10Z")
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