82 lines
2.2 KiB
Plaintext
82 lines
2.2 KiB
Plaintext
[[default-mapping]]
|
|
=== `_default_` mapping
|
|
|
|
The default mapping, which will be used as the base mapping for any new
|
|
mapping types, can be customised by adding a mapping type with the name
|
|
`_default_` to an index, either when
|
|
<<indices-create-index,creating the index>> or later on with the
|
|
<<indices-put-mapping,PUT mapping>> API.
|
|
|
|
|
|
[source,js]
|
|
--------------------------------------------------
|
|
PUT my_index
|
|
{
|
|
"mappings": {
|
|
"_default_": { <1>
|
|
"_all": {
|
|
"enabled": false
|
|
}
|
|
},
|
|
"user": {}, <2>
|
|
"blogpost": { <3>
|
|
"_all": {
|
|
"enabled": true
|
|
}
|
|
}
|
|
}
|
|
}
|
|
--------------------------------------------------
|
|
// AUTOSENSE
|
|
<1> The `_default_` mapping defaults the <<mapping-all-field,`_all`>> field to disabled.
|
|
<2> The `user` type inherits the settings from `_default_`.
|
|
<3> The `blogpost` type overrides the defaults and enables the <<mapping-all-field,`_all`>> field.
|
|
|
|
While the `_default_` mapping can be updated after an index has been created,
|
|
the new defaults will only affect mapping types that are created afterwards.
|
|
|
|
The `_default_` mapping can be used in conjunction with
|
|
<<indices-templates,Index templates>> to control dynamically created types
|
|
within automatically created indices:
|
|
|
|
|
|
[source,js]
|
|
--------------------------------------------------
|
|
PUT _template/logging
|
|
{
|
|
"template": "logs-*", <1>
|
|
"settings": { "number_of_shards": 1 }, <2>
|
|
"mappings": {
|
|
"_default_": {
|
|
"_all": { <3>
|
|
"enabled": false
|
|
},
|
|
"dynamic_templates": [
|
|
{
|
|
"strings": { <4>
|
|
"match_mapping_type": "string",
|
|
"mapping": {
|
|
"type": "text",
|
|
"fields": {
|
|
"raw": {
|
|
"type": "keyword",
|
|
"ignore_above": 256
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
]
|
|
}
|
|
}
|
|
}
|
|
|
|
PUT logs-2015.10.01/event/1
|
|
{ "message": "error:16" }
|
|
--------------------------------------------------
|
|
// AUTOSENSE
|
|
<1> The `logging` template will match any indices beginning with `logs-`.
|
|
<2> Matching indices will be created with a single primary shard.
|
|
<3> The `_all` field will be disabled by default for new type mappings.
|
|
<4> String fields will be created with a `text` main field, and a `keyword` `.raw` field.
|