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CAT Field Data

Introduced 1.0

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

Path and HTTP methods

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

Query parameters

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

Example requests

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

Example response

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

id                     host       ip         node       field size
1vo54NuxSxOrbPEYdkSF0w 172.18.0.4 172.18.0.4 odfe-node1 _id   284b
ZaIkkUd4TEiAihqJGkp5CA 172.18.0.3 172.18.0.3 odfe-node2 _id   284b
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