es-notes.md

elasticsearch notes

Guides

You'll need to refer to ElasticSearch documentation to learn.

Reference https://www.elastic.co/guide/en/elasticsearch/reference/1.7/index.html

• Query DSL https://www.elastic.co/guide/en/elasticsearch/reference/1.7/query-dsl.html

ES The Definitive guide https://www.elastic.co/guide/en/elasticsearch/guide/current/index.html

What will we use ES for?

ElasticSearch is a clustered solution for storing and retrieving documents.

You define:

• indices
• document types (mappings) within indices
• documents { 'field': 'value' }

Some Demos

Create an index
PUT fooindex

Create a mapping within it

PUT fooindex/_mapping/mydoc
{
  "properties" : {
    "name": {"type":"string"}
  }
}


GET fooindex/_mapping/

Do some indexing and querying

POST fooindex/mydoc
{
  "name": "deCODE 2015",
  "description": "foobar"
}


GET fooindex/mydoc/_search
{
  "query": {
    "terms": {
    "name": ["lobster", "2015"]
    }
  }
}