ElasticSearch: index only the fields specified in the mapping

Question

I have an ElasticSearch setting that receives data for indexing across the CouchDB River. I have a problem with the fact that most of the fields in CouchDB documents are actually not related to search: they are internal fields of the application (identifiers, etc.), and I do not want to receive false positives because of these fields. In addition, indexing unnecessary data seems like a waste of resources to me.

To solve this problem, I defined a mapping in which I specify the fields that I want to index. I am using pyes to access ElasticSearch. The process I'm following is as follows:

• Create the CouchDB River associated with the index. This, apparently, also creates an index and creates a “couchdb” mapping in this index, which, as far as I see, includes all fields with dynamically assigned types.
• Put the mapping by rearranging it in the fields that I really want to index.

This is the index definition obtained by:

curl -XGET http://localhost:9200/notes_index/_mapping?pretty=true

{
  "notes_index" : {
    "default_mapping" : {
      "properties" : {
        "note_text" : {
          "type" : "string"
        }
      }
    },
    "couchdb" : {
      "properties" : {
        "_rev" : {
          "type" : "string"
        },
        "created_at_date" : {
          "format" : "dateOptionalTime",
          "type" : "date"
        },
        "note_text" : {
          "type" : "string"
        },
        "organization_id" : {
          "type" : "long"
        },
        "user_id" : {
          "type" : "long"
        },
        "created_at_time" : {
          "type" : "long"
        }
      }
    }
  }
}

The problem I have is multi-valued:

• that the default display is "couchdb" indexing all fields. I do not want this. Can this mapping be avoided? I am confused because this mapping seems to be something that somehow “connects” to the CouchDB river.
• the mapping I created seems to have no effect: there are no documents indexed by this mapping

Do you have any tips on this?

EDIT

, , , :

server="localhost"

# Create the index
curl -XPUT    "$server:9200/index1"

# Create the mapping
curl -XPUT    "$server:9200/index1/mapping1/_mapping" -d '
{
    "type1" : {
        "properties" : {
            "note_text" : {"type" : "string", "store" : "no"}
        }
    }
}
'

# Configure the river
curl -XPUT "$server:9200/_river/river1/_meta" -d '{
    "type" : "couchdb",
    "couchdb" : {
        "host" : "localhost",
        "port" : 5984,
        "user" : "admin",
        "password" : "admin",
        "db" : "notes"
    },
    "index" : {
        "index" : "index1",
        "type" : "type1"
    }
}'

index1 - , "note_text", , . ?

Answer 1

CouchDB - "" , , CouchDB. , ( , ).

"", River (. ):

curl -XPUT 'elasticsearch-host:9200/_river/notes_index/_meta' -d '{
    "type" : "couchdb",

    ... your CouchDB connection configuration ...

    "index" : {
        "index" : "notes_index",
        "type" : "mapping1"
    }
}'

, URL- PUT, , , , , mapping1. , :

> curl 'localhost:9200/index1/_mapping?pretty=true'

{
  "index1" : {
    "mapping1" : {
      "properties" : {
        "note_text" : {
          "type" : "string"
        }
      }
    }
  }
}

, , .