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

  1. GET _cat/fielddata?v
  2. 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:

ParameterTypeDescription
bytesByte sizeSpecify the units for byte size. For example, 7kb or 6gb. For more information, see Supported units.

Example requests

  1. GET _cat/fielddata?v

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

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

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

  1. GET _cat/fielddata/field_name_1,field_name_2,field_name_3

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Example response

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

  1. id                     host       ip         node       field size
  2. 1vo54NuxSxOrbPEYdkSF0w 172.18.0.4 172.18.0.4 odfe-node1 _id   284b
  3. ZaIkkUd4TEiAihqJGkp5CA 172.18.0.3 172.18.0.3 odfe-node2 _id   284b