I am new to elastic search and i am trying to create a mapping file for an index this is my mapping file for creating an index

{
"mapping": {
    "properties": {
        "TotalCapacity": {
            "type": "long"
        },
        "DiskUseState": {
            "type": "text",
            "fields": {
                "type": "keyword",
                "ignored_above": 256
            }
        },
        "DriveHostName": {
            "type": "text",
            "fields": {
                "type": "keyword",
                "ignored_above": 256
            }
        },
        "ModelNumber": {
            "type": "text",
            "fields": {
                "type": "keyword",
                "ignored_above": 256
            }
        },
        "DriveNodeUuid": {
            "type": "text",
            "fields": {
                "type": "keyword",
                "ignored_above": 256
            }
        },
        "DrivePath": {
            "type": "text",
            "fields": {
                "type": "keyword",
                "ignored_above": 256
            }
        },
        "DriveProtocol": {
            "type": "text",
            "fields": {
                "type": "keyword",
                "ignored_above": 256
            }
        }  
    }
    
}

}

when i try to create an index iam getting this error

'mapper_parsing_exception' illegal field [ignored_above], only fields can be specified inside fields' error in elastic search.

Not sure whats wrong . Any help is appriciated Elasticsearch version : 7.1.0

CodePudding user response：

You have 2 issue with your mapping configuration:

First, it should ignore_above and not ignored_above.

Second, You have not given sub field name. your field mapping should be something like below, so you can access keyword type of field using DiskUseState.keyword name:

"DiskUseState": {
        "type": "text",
        "fields": {
          "keyword": {           <---- this you have not given in your mapping
            "type": "keyword",
            "ignore_above": 256
          }
        }
      }

Correct field mapping

{
  "mappings": {
    "properties": {
      "TotalCapacity": {
        "type": "long"
      },
      "DiskUseState": {
        "type": "text",
        "fields": {
          "keyword": {
            "type": "keyword",
            "ignore_above": 256
          }
        }
      },
      "DriveHostName": {
        "type": "text",
        "fields": {
          "keyword": {
            "type": "keyword",
            "ignore_above": 256
          }
        }
      },
      "ModelNumber": {
        "type": "text",
        "fields": {
          "keyword": {
            "type": "keyword",
            "ignore_above": 256
          }
        }
      },
      "DriveNodeUuid": {
        "type": "text",
        "fields": {
          "keyword": {
            "type": "keyword",
            "ignore_above": 256
          }
        }
      },
      "DrivePath": {
        "type": "text",
        "fields": {
          "keyword": {
            "type": "keyword",
            "ignore_above": 256
          }
        }
      },
      "DriveProtocol": {
        "type": "text",
        "fields": {
          "keyword": {
            "type": "keyword",
            "ignore_above": 256
          }
        }
      }
    }
  }
}