### Author:  [@Max\_K](https://discuss.elastic.co/u/Max_K)
#### Post date: [August 23, 2018, 3:01pm UTC](https://discuss.elastic.co/t/index-mapping-depth/145766/1 "2018-08-23T15:01:46Z")
Hello.
Please clarify the functional index.mapping.depth.limit.
From the [https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping.html#mapping-limit-settings](https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping.html#mapping-limit-settings) documentation it seems that this option will limit the depth of the lower-level fields created by the dynamic mapping, and so . I need only the first two, I set the value to 2 and suddenly get an error
`[WARN] [logstash.outputs.elasticsearch] Could not index event to Elasticsearch. {: status => 400,: action => ["index", {: _id => nil,: _index => "3dash-2018.08.23",: _type => "doc",: _routing => nil}, # ],: response => {"index" => {"_ index" => "3dash-2018.08.23", "_type" => "doc", "_id" => " pDEcZ2UB9niMDQsqsMkQ "," status "=> 400," error "=> {" type "=>" illegal_argument_exception "," reason "=>" Limit of mapping depth [2] in index [3dash-2018.08.23] has exceeded due to object field [Response.OperationSystemList.Data] "}}}}`
If I do not use this option correctly, then how do I limit the dynamic mapping to the first two levels?
Thx for answers.
---
### Author:  [@jpountz](https://discuss.elastic.co/u/jpountz)
#### Post date: [August 23, 2018, 3:49pm UTC](https://discuss.elastic.co/t/index-mapping-depth/145766/2 "2018-08-23T15:49:34Z")
This option will limit the depth of fields, but in a way that rejects documents that have a too deep structure.
It looks like what you are after is to ignore fields that are more than 2 levels deep, which can be done this way with dynamic templates:
```auto
PUT test
{
"mappings": {
"_doc": {
"dynamic_templates": [
{
"deep_objects": {
"match_mapping_type": "object",
"path_match": "*.*",
"mapping": {
"type": "object",
"enabled": false
}
}
}
]
}
}
}
```
---
### Author:  [@Max\_K](https://discuss.elastic.co/u/Max_K)
#### Post date: [August 23, 2018, 3:52pm UTC](https://discuss.elastic.co/t/index-mapping-depth/145766/3 "2018-08-23T15:52:42Z")
Thank you for the explanation, try to do so.
---
### Author:  [@Max\_K](https://discuss.elastic.co/u/Max_K)
#### Post date: [August 23, 2018, 4:05pm UTC](https://discuss.elastic.co/t/index-mapping-depth/145766/4 "2018-08-23T16:05:42Z")
> [@jpountz](#):
>
> "path\_match": "_._"
I correctly understand that if I need a third level, then the difference will be in `"path_match": "*. *. *"`?
---
### Author:  [@jpountz](https://discuss.elastic.co/u/jpountz)
#### Post date: [August 27, 2018, 10:42am UTC](https://discuss.elastic.co/t/index-mapping-depth/145766/5 "2018-08-27T10:42:44Z")
This is correct.
---
### Author:  [@Max\_K](https://discuss.elastic.co/u/Max_K)
#### Post date: [August 27, 2018, 12:15pm UTC](https://discuss.elastic.co/t/index-mapping-depth/145766/6 "2018-08-27T12:15:42Z")
thank you for clarification!
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [September 24, 2018, 12:15pm UTC](https://discuss.elastic.co/t/index-mapping-depth/145766/7 "2018-09-24T12:15:44Z")
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