Elasticsearch Metadata - How to Check Metadata in Elasticsearch & CURL

Elasticsearch Metadata

By Opster Team

Updated: Mar 21, 2023

| 1 min read

Overview

Metadata in Elasticsearch refers to additional information stored for each document. This is achieved using the specific metadata fields available in Elasticsearch. The default behavior of some of these metadata fields can be customized during mapping creation.

Examples

Using _meta meta-field for storing application-specific information with the mapping:

PUT /my_index?pretty
{
  "mappings": {
    "_meta": { 
      "domain": "security",
      "release_information": {
        "date": "18-01-2020",
        "version": "7.5"
      }
    }
  }
}

Notes

In version 2.x, Elasticsearch had a total 13 meta fields available, which are: _index, _uid, _type, _id, _source, _size, _all, _field_names, _timestamp, _ttl, _parent, _routing, _meta
In version 5.x, _timestamp and _ttl meta fields were removed.
In version 6.x, the _parent meta field was removed.
In version 7.x, _uid and _all meta fields were removed.

Related log errors to this ES concept

Failed to parse repository uuid not a string

Repository type repositoryMetadata type does not exist

Unknown parameter propName on metadata field name

Waiting until metadata writes are unblocked

Failed to publish new cluster state with rollup metadata