Link Search Menu Expand Document Documentation Menu

You're viewing version 2.0 of the OpenSearch documentation. This version is no longer maintained. For the latest version, see the current documentation. For information about OpenSearch version maintenance, see Release Schedule and Maintenance Policy.

CAT fielddata

Introduced 1.0

The CAT fielddata operation lists the memory size used by each field per node.


GET _cat/fielddata?v

To limit the information to a specific field, add the field name after your query:

GET _cat/fielddata/<field_name>?v

If you want to get information for more than one field, separate the field names with commas:

GET _cat/fielddata/field_name_1,field_name_2,field_name_3

Path and HTTP methods

GET _cat/fielddata?v
GET _cat/fielddata/<field_name>?v

URL parameters

All CAT fielddata URL parameters are optional.

In addition to the common URL parameters, you can specify the following parameter:

Parameter Type Description
bytes Byte size Specify the units for byte size. For example, 7kb or 6gb. For more information, see Supported units.


The following response shows the memory size for all fields as 284 bytes:

id                     host       ip         node       field size
1vo54NuxSxOrbPEYdkSF0w odfe-node1 _id   284b
ZaIkkUd4TEiAihqJGkp5CA odfe-node2 _id   284b
350 characters left

Have a question? .

Want to contribute? or .